+++ /dev/null
-/*
- * view.c
- * Copyright (C) 2001-2009 Jim Evins <evins@snaught.com>.
- *
- * This file is part of gLabels.
- *
- * gLabels is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * gLabels is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with gLabels. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <config.h>
-
-#include "view.h"
-
-#include <glib/gi18n.h>
-#include <gtk/gtk.h>
-#include <gdk/gdkkeysyms.h>
-#include <string.h>
-#include <math.h>
-
-#include "label.h"
-#include "cairo-label-path.h"
-#include "cairo-markup-path.h"
-#include "view-object.h"
-#include "view-box.h"
-#include "view-ellipse.h"
-#include "view-line.h"
-#include "view-image.h"
-#include "view-text.h"
-#include "view-barcode.h"
-#include "xml-label.h"
-#include "color.h"
-#include "prefs.h"
-#include "marshal.h"
-
-#include "debug.h"
-
-
-/*==========================================================================*/
-/* Private macros and constants. */
-/*==========================================================================*/
-
-#define BG_COLOR GL_COLOR (192, 192, 192)
-
-#define PAPER_RGB_ARGS 1.0, 1.0, 1.0
-#define GRID_RGB_ARGS 0.753, 0.753, 0.753
-#define MARKUP_RGB_ARGS 0.94, 0.39, 0.39
-#define OUTLINE_RGB_ARGS 0.68, 0.85, 0.90
-#define SELECT_LINE_RGBA_ARGS 0.0, 0.0, 1.0, 0.5
-#define SELECT_FILL_RGBA_ARGS 0.75, 0.75, 1.0, 0.5
-
-#define GRID_LINE_WIDTH_PIXELS 1.0
-#define MARKUP_LINE_WIDTH_PIXELS 1.0
-#define OUTLINE_WIDTH_PIXELS 3.0
-#define SELECT_LINE_WIDTH_PIXELS 3.0
-
-#define ZOOMTOFIT_PAD 16
-
-#define POINTS_PER_MM 2.83464566929
-
-
-/*==========================================================================*/
-/* Private types. */
-/*==========================================================================*/
-
-enum {
- SELECTION_CHANGED,
- CONTEXT_MENU_ACTIVATE,
- ZOOM_CHANGED,
- POINTER_MOVED,
- POINTER_EXIT,
- MODE_CHANGED,
- LAST_SIGNAL
-};
-
-
-/*==========================================================================*/
-/* Private globals */
-/*==========================================================================*/
-
-static guint signals[LAST_SIGNAL] = {0};
-
-/* "CLIPBOARD" selection */
-static GdkAtom clipboard_atom = GDK_NONE;
-
-static gdouble zooms[] = {
- 8.00,
- 6.00,
- 4.00,
- 3.00,
- 2.00,
- 1.50,
- 1.00,
- 0.75,
- 0.67,
- 0.50,
- 0.33,
- 0.25,
- 0.20,
- 0.15,
- 0.10,
-};
-#define N_ZOOMS G_N_ELEMENTS(zooms)
-
-
-/*==========================================================================*/
-/* Local function prototypes */
-/*==========================================================================*/
-
-static void gl_view_finalize (GObject *object);
-
-static void gl_view_construct (glView *view,
- glLabel *label);
-
-static gdouble get_home_scale (glView *view);
-
-static gboolean expose_cb (glView *view,
- GdkEventExpose *event);
-
-static void realize_cb (glView *view);
-
-static void size_allocate_cb (glView *view,
- GtkAllocation *allocation);
-
-static void screen_changed_cb (glView *view);
-
-static void label_changed_cb (glView *view);
-
-static void label_resized_cb (glView *view);
-
-static void label_object_added_cb (glView *view,
- glLabelObject *object);
-
-static void draw_layers (glView *view,
- cairo_t *cr);
-
-static void draw_bg_layer (glView *view,
- cairo_t *cr);
-static void draw_grid_layer (glView *view,
- cairo_t *cr);
-static void draw_markup_layer (glView *view,
- cairo_t *cr);
-static void draw_objects_layer (glView *view,
- cairo_t *cr);
-static void draw_fg_layer (glView *view,
- cairo_t *cr);
-static void draw_highlight_layer (glView *view,
- cairo_t *cr);
-static void draw_select_region_layer (glView *view,
- cairo_t *cr);
-
-static void select_object_real (glView *view,
- glViewObject *view_object);
-static void unselect_object_real (glView *view,
- glViewObject *view_object);
-
-static glViewObject *view_view_object_at (glView *view,
- cairo_t *cr,
- gdouble x,
- gdouble y);
-
-static void set_zoom_real (glView *view,
- gdouble zoom,
- gboolean scale_to_fit_flag);
-
-static void selection_clear_cb (GtkWidget *widget,
- GdkEventSelection *event,
- glView *view);
-
-static void selection_get_cb (GtkWidget *widget,
- GtkSelectionData *selection_data,
- guint info,
- guint time,
- glView *view);
-
-static void selection_received_cb (GtkWidget *widget,
- GtkSelectionData *selection_data,
- guint time,
- glView *view);
-
-static gboolean focus_in_event_cb (glView *view,
- GdkEventFocus *event);
-
-static gboolean focus_out_event_cb (glView *view,
- GdkEventFocus *event);
-
-static gboolean enter_notify_event_cb (glView *view,
- GdkEventCrossing *event);
-
-static gboolean leave_notify_event_cb (glView *view,
- GdkEventCrossing *event);
-
-static gboolean motion_notify_event_cb (glView *view,
- GdkEventMotion *event);
-
-static gboolean button_press_event_cb (glView *view,
- GdkEventButton *event);
-
-static gboolean button_release_event_cb (glView *view,
- GdkEventButton *event);
-
-static gboolean key_press_event_cb (glView *view,
- GdkEventKey *event);
-
-
-/****************************************************************************/
-/* Boilerplate Object stuff. */
-/****************************************************************************/
-G_DEFINE_TYPE (glView, gl_view, GTK_TYPE_VBOX);
-
-
-static void
-gl_view_class_init (glViewClass *class)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (class);
-
- gl_debug (DEBUG_VIEW, "START");
-
- gl_view_parent_class = g_type_class_peek_parent (class);
-
- object_class->finalize = gl_view_finalize;
-
- signals[SELECTION_CHANGED] =
- g_signal_new ("selection_changed",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glViewClass, selection_changed),
- NULL, NULL,
- gl_marshal_VOID__VOID,
- G_TYPE_NONE,
- 0);
-
- signals[CONTEXT_MENU_ACTIVATE] =
- g_signal_new ("context_menu_activate",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glViewClass, context_menu_activate),
- NULL, NULL,
- gl_marshal_VOID__INT_UINT,
- G_TYPE_NONE,
- 2, G_TYPE_INT, G_TYPE_UINT);
-
- signals[ZOOM_CHANGED] =
- g_signal_new ("zoom_changed",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glViewClass, zoom_changed),
- NULL, NULL,
- gl_marshal_VOID__DOUBLE,
- G_TYPE_NONE,
- 1, G_TYPE_DOUBLE);
-
- signals[POINTER_MOVED] =
- g_signal_new ("pointer_moved",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glViewClass, pointer_moved),
- NULL, NULL,
- gl_marshal_VOID__DOUBLE_DOUBLE,
- G_TYPE_NONE,
- 2, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
-
- signals[POINTER_EXIT] =
- g_signal_new ("pointer_exit",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glViewClass, pointer_exit),
- NULL, NULL,
- gl_marshal_VOID__VOID,
- G_TYPE_NONE,
- 0);
-
- signals[MODE_CHANGED] =
- g_signal_new ("mode_changed",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glViewClass, mode_changed),
- NULL, NULL,
- gl_marshal_VOID__VOID,
- G_TYPE_NONE,
- 0);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-static void
-gl_view_init (glView *view)
-{
- GtkWidget *wscroll;
- GdkColor *bg_color;
-
- gl_debug (DEBUG_VIEW, "START");
-
- view->label = NULL;
- view->grid_visible = TRUE;
- view->grid_spacing = 9;
- view->markup_visible = TRUE;
- view->default_font_family = NULL;
- view->mode = GL_VIEW_MODE_ARROW;
- view->object_list = NULL;
- view->selected_object_list = NULL;
- view->zoom = 1.0;
- view->home_scale = get_home_scale (view);
-
- /*
- * Canvas
- */
- view->canvas = gtk_layout_new (NULL, NULL);
- wscroll = gtk_scrolled_window_new (NULL, NULL);
- gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (wscroll),
- GTK_POLICY_AUTOMATIC,
- GTK_POLICY_AUTOMATIC);
- gtk_box_pack_start (GTK_BOX (view), wscroll, TRUE, TRUE, 0);
- gtk_container_add (GTK_CONTAINER (wscroll), view->canvas);
-
- bg_color = gl_color_to_gdk_color (BG_COLOR);
- gtk_widget_modify_bg (GTK_WIDGET (view->canvas), GTK_STATE_NORMAL, bg_color);
- g_free (bg_color);
-
- GTK_WIDGET_SET_FLAGS (GTK_WIDGET (view->canvas), GTK_CAN_FOCUS);
-
- gtk_widget_add_events (GTK_WIDGET (view->canvas),
- (GDK_FOCUS_CHANGE_MASK |
- GDK_ENTER_NOTIFY_MASK |
- GDK_LEAVE_NOTIFY_MASK |
- GDK_POINTER_MOTION_MASK |
- GDK_BUTTON_PRESS_MASK |
- GDK_BUTTON_RELEASE_MASK |
- GDK_KEY_PRESS_MASK));
-
- g_signal_connect_swapped (G_OBJECT (view->canvas), "expose-event",
- G_CALLBACK (expose_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "realize",
- G_CALLBACK (realize_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "size-allocate",
- G_CALLBACK (size_allocate_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "screen-changed",
- G_CALLBACK (screen_changed_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "focus-in-event",
- G_CALLBACK (focus_in_event_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "focus-out-event",
- G_CALLBACK (focus_out_event_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "enter-notify-event",
- G_CALLBACK (enter_notify_event_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "leave-notify-event",
- G_CALLBACK (leave_notify_event_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "motion-notify-event",
- G_CALLBACK (motion_notify_event_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "button-press-event",
- G_CALLBACK (button_press_event_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "button-release-event",
- G_CALLBACK (button_release_event_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->canvas), "key-press-event",
- G_CALLBACK (key_press_event_cb), view);
-
- /*
- * Clipboard
- */
- view->have_selection = FALSE;
- view->selection_data = NULL;
- view->invisible = gtk_invisible_new ();
- if (!clipboard_atom) {
- clipboard_atom = gdk_atom_intern ("GLABELS_CLIPBOARD", FALSE);
- }
- gtk_selection_add_target (view->invisible,
- clipboard_atom, GDK_SELECTION_TYPE_STRING, 1);
- g_signal_connect (G_OBJECT (view->invisible),
- "selection_clear_event",
- G_CALLBACK (selection_clear_cb), view);
- g_signal_connect (G_OBJECT (view->invisible), "selection_get",
- G_CALLBACK (selection_get_cb), view);
- g_signal_connect (G_OBJECT (view->invisible),
- "selection_received",
- G_CALLBACK (selection_received_cb), view);
-
- /*
- * Defaults from preferences
- */
- gl_view_set_default_font_family (view, gl_prefs->default_font_family);
- gl_view_set_default_font_size (view, gl_prefs->default_font_size);
- gl_view_set_default_font_weight (view, gl_prefs->default_font_weight);
- gl_view_set_default_font_italic_flag (view, gl_prefs->default_font_italic_flag);
- gl_view_set_default_text_color (view, gl_prefs->default_text_color);
- gl_view_set_default_text_alignment (view, gl_prefs->default_text_alignment);
- gl_view_set_default_text_line_spacing (view, gl_prefs->default_text_line_spacing);
- gl_view_set_default_line_width (view, gl_prefs->default_line_width);
- gl_view_set_default_line_color (view, gl_prefs->default_line_color);
- gl_view_set_default_fill_color (view, gl_prefs->default_fill_color);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-static void
-gl_view_finalize (GObject *object)
-{
- glView *view = GL_VIEW (object);
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (object != NULL);
- g_return_if_fail (GL_IS_VIEW (object));
-
- if (view->default_font_family) {
- g_free (view->default_font_family);
- }
-
- G_OBJECT_CLASS (gl_view_parent_class)->finalize (object);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* NEW view object. */
-/****************************************************************************/
-GtkWidget *
-gl_view_new (glLabel *label)
-{
- glView *view;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (label && GL_IS_LABEL (label), NULL);
-
- view = g_object_new (GL_TYPE_VIEW, NULL);
-
- gl_view_construct (view, label);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return GTK_WIDGET (view);
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Construct composite widget. */
-/*---------------------------------------------------------------------------*/
-static void
-gl_view_construct (glView *view,
- glLabel *label)
-{
- GList *p_obj;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (GL_IS_VIEW (view));
-
- view->label = label;
-
- for (p_obj = label->objects; p_obj != NULL; p_obj = p_obj->next)
- {
- object = GL_LABEL_OBJECT (p_obj->data);
-
- if (GL_IS_LABEL_BOX (object)) {
- gl_view_box_new (GL_LABEL_BOX(object), view);
- } else if (GL_IS_LABEL_ELLIPSE (object)) {
- gl_view_ellipse_new (GL_LABEL_ELLIPSE(object), view);
- } else if (GL_IS_LABEL_LINE (object)) {
- gl_view_line_new (GL_LABEL_LINE(object), view);
- } else if (GL_IS_LABEL_IMAGE (object)) {
- gl_view_image_new (GL_LABEL_IMAGE(object), view);
- } else if (GL_IS_LABEL_TEXT (object)) {
- gl_view_text_new (GL_LABEL_TEXT(object), view);
- } else if (GL_IS_LABEL_BARCODE (object)) {
- gl_view_barcode_new (GL_LABEL_BARCODE(object), view);
- } else {
- /* Should not happen! */
- g_message ("Invalid label object type.");
- }
- }
-
- g_signal_connect_swapped (G_OBJECT (view->label), "changed",
- G_CALLBACK (label_changed_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->label), "size_changed",
- G_CALLBACK (label_resized_cb), view);
- g_signal_connect_swapped (G_OBJECT (view->label), "object_added",
- G_CALLBACK (label_object_added_cb), view);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIAVTE. Calculate 1:1 scale for screen. */
-/*---------------------------------------------------------------------------*/
-static gdouble
-get_home_scale (glView *view)
-{
- GdkScreen *screen;
- gdouble screen_width_pixels;
- gdouble screen_width_mm;
- gdouble screen_height_pixels;
- gdouble screen_height_mm;
- gdouble x_pixels_per_mm;
- gdouble y_pixels_per_mm;
- gdouble scale;
-
- if (view->canvas == NULL) return 1.0;
-
- if (!gtk_widget_has_screen (GTK_WIDGET (view->canvas))) return 1.0;
-
- screen = gtk_widget_get_screen (GTK_WIDGET (view->canvas));
-
- gl_debug (DEBUG_VIEW, "Screen = %p", screen);
-
- screen_width_pixels = gdk_screen_get_width (screen);
- screen_width_mm = gdk_screen_get_width_mm (screen);
- screen_height_pixels = gdk_screen_get_height (screen);
- screen_height_mm = gdk_screen_get_height_mm (screen);
-
- x_pixels_per_mm = screen_width_pixels / screen_width_mm;
- y_pixels_per_mm = screen_height_pixels / screen_height_mm;
-
- gl_debug (DEBUG_VIEW, "Horizontal dot pitch: %g pixels/mm (%g dpi)",
- x_pixels_per_mm, x_pixels_per_mm * 25.4);
- gl_debug (DEBUG_VIEW, "Vertical dot pitch: %g pixels/mm (%g dpi)",
- y_pixels_per_mm, y_pixels_per_mm * 25.4);
-
- scale = (x_pixels_per_mm + y_pixels_per_mm) / 2.0;
-
- gl_debug (DEBUG_VIEW, "Average dot pitch: %g pixels/mm (%g dpi)",
- scale, scale * 25.4);
-
- scale /= POINTS_PER_MM;
-
- gl_debug (DEBUG_VIEW, "Scale = %g pixels/point", scale);
-
- /* Make sure scale is somewhat sane. */
- if ( (scale < 0.25) || (scale > 4.0) ) return 1.0;
-
- return scale;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* Schedule canvas update. */
-/*---------------------------------------------------------------------------*/
-void
-gl_view_update (glView *view)
-{
- GtkWidget *widget;
- GdkRegion *region;
-
- gl_debug (DEBUG_VIEW, "START");
-
- widget = GTK_WIDGET (view->canvas);
-
- if (!widget->window) return;
-
- if ( !view->update_scheduled_flag )
- {
- view->update_scheduled_flag = TRUE;
-
- region = gdk_drawable_get_clip_region (widget->window);
- /* redraw the cairo canvas completely by exposing it */
- gdk_window_invalidate_region (widget->window, region, TRUE);
- gdk_region_destroy (region);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* Schedule canvas region update. */
-/*---------------------------------------------------------------------------*/
-void
-gl_view_update_region (glView *view,
- cairo_t *cr,
- glLabelRegion *region)
-{
- GtkWidget *widget;
- GdkRectangle rect;
- gdouble x, y, w, h;
-
- gl_debug (DEBUG_VIEW, "START");
-
- widget = GTK_WIDGET (view->canvas);
-
- if (!widget->window) return;
-
- x = MIN (region->x1, region->x2);
- y = MIN (region->y1, region->y2);
- w = fabs (region->x2 - region->x1);
- h = fabs (region->y2 - region->y1);
-
- cairo_user_to_device (cr, &x, &y);
- cairo_user_to_device_distance (cr, &w, &h);
-
- rect.x = x - 3;
- rect.y = y - 3;
- rect.width = w + 6;
- rect.height = h + 6;
-
- gdk_window_invalidate_rect (widget->window, &rect, TRUE);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Expose handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-expose_cb (glView *view,
- GdkEventExpose *event)
-{
- cairo_t *cr;
-
- gl_debug (DEBUG_VIEW, "START");
-
- view->update_scheduled_flag = FALSE;
-
- /* get a cairo_t */
- cr = gdk_cairo_create (GTK_LAYOUT (view->canvas)->bin_window);
-
- cairo_rectangle (cr,
- event->area.x, event->area.y,
- event->area.width, event->area.height);
- cairo_clip (cr);
-
- draw_layers (view, cr);
-
- cairo_destroy (cr);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return FALSE;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Realize handler. */
-/*---------------------------------------------------------------------------*/
-static void
-realize_cb (glView *view)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- gl_debug (DEBUG_VIEW, "START");
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Size allocation changed callback. */
-/*---------------------------------------------------------------------------*/
-static void
-size_allocate_cb (glView *view,
- GtkAllocation *allocation)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- GTK_LAYOUT (view->canvas)->hadjustment->page_size = allocation->width;
- GTK_LAYOUT (view->canvas)->hadjustment->page_increment = allocation->width / 2;
-
- GTK_LAYOUT (view->canvas)->vadjustment->page_size = allocation->height;
- GTK_LAYOUT (view->canvas)->vadjustment->page_increment = allocation->height / 2;
-
- g_signal_emit_by_name (GTK_LAYOUT (view->canvas)->hadjustment, "changed");
- g_signal_emit_by_name (GTK_LAYOUT (view->canvas)->vadjustment, "changed");
-
- if (view->zoom_to_fit_flag) {
- /* Maintain best fit zoom */
- gl_view_zoom_to_fit (view);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Screen changed callback. */
-/*---------------------------------------------------------------------------*/
-static void
-screen_changed_cb (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- if (gtk_widget_has_screen (GTK_WIDGET (view->canvas))) {
-
- view->home_scale = get_home_scale (view);
-
- if (view->zoom_to_fit_flag) {
- /* Maintain best fit zoom */
- gl_view_zoom_to_fit (view);
- }
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Handle label changed event. */
-/*---------------------------------------------------------------------------*/
-static void
-label_changed_cb (glView *view)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- gl_debug (DEBUG_VIEW, "START");
-
- gl_view_update (view);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Handle label resize event. */
-/*---------------------------------------------------------------------------*/
-static void
-label_resized_cb (glView *view)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_signal_emit_by_name (GTK_LAYOUT (view->canvas)->hadjustment, "changed");
- g_signal_emit_by_name (GTK_LAYOUT (view->canvas)->vadjustment, "changed");
-
- gl_view_update (view);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Handle new label object. */
-/*---------------------------------------------------------------------------*/
-static void
-label_object_added_cb (glView *view,
- glLabelObject *object)
-{
- glViewObject *view_object;
-
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if (GL_IS_LABEL_BOX (object)) {
- view_object = gl_view_box_new (GL_LABEL_BOX(object), view);
- } else if (GL_IS_LABEL_ELLIPSE (object)) {
- view_object = gl_view_ellipse_new (GL_LABEL_ELLIPSE(object), view);
- } else if (GL_IS_LABEL_LINE (object)) {
- view_object = gl_view_line_new (GL_LABEL_LINE(object), view);
- } else if (GL_IS_LABEL_IMAGE (object)) {
- view_object = gl_view_image_new (GL_LABEL_IMAGE(object), view);
- } else if (GL_IS_LABEL_TEXT (object)) {
- view_object = gl_view_text_new (GL_LABEL_TEXT(object), view);
- } else if (GL_IS_LABEL_BARCODE (object)) {
- view_object = gl_view_barcode_new (GL_LABEL_BARCODE(object), view);
- } else {
- /* Should not happen! */
- view_object = NULL;
- g_message ("Invalid label object type.");
- }
-
- gl_view_select_object (view, view_object);
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Create, draw and order layers. */
-/*---------------------------------------------------------------------------*/
-static void
-draw_layers (glView *view,
- cairo_t *cr)
-{
- gdouble scale;
- gdouble w, h;
- gint canvas_w, canvas_h;
-
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (view->label && GL_IS_LABEL (view->label));
-
- gl_debug (DEBUG_VIEW, "START");
-
- scale = view->zoom * view->home_scale;
-
- gl_label_get_size (view->label, &w, &h);
-
- scale = view->home_scale * view->zoom;
- gtk_layout_set_size (GTK_LAYOUT (view->canvas), w*scale+8, h*scale+8);
-
- gdk_drawable_get_size (GTK_LAYOUT (view->canvas)->bin_window, &canvas_w, &canvas_h);
-
- view->x0 = (canvas_w/scale - w) / 2.0;
- view->y0 = (canvas_h/scale - h) / 2.0;
- view->w = w;
- view->h = h;
-
- cairo_save (cr);
-
- cairo_scale (cr, scale, scale);
- cairo_translate (cr, view->x0, view->y0);
-
- draw_bg_layer (view, cr);
- draw_grid_layer (view, cr);
- draw_markup_layer (view, cr);
- draw_objects_layer (view, cr);
- draw_fg_layer (view, cr);
- draw_highlight_layer (view, cr);
- draw_select_region_layer (view, cr);
-
- cairo_restore (cr);
-
- gl_debug (DEBUG_VIEW, "END");
-
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Draw background */
-/*---------------------------------------------------------------------------*/
-static void
-draw_bg_layer (glView *view,
- cairo_t *cr)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (view->label && GL_IS_LABEL (view->label));
-
- gl_cairo_label_path (cr, view->label->template, view->label->rotate_flag, FALSE);
-
- cairo_set_source_rgb (cr, PAPER_RGB_ARGS);
- cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
- cairo_fill (cr);
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Draw grid lines. */
-/*---------------------------------------------------------------------------*/
-static void
-draw_grid_layer (glView *view,
- cairo_t *cr)
-{
- gdouble w, h;
- gdouble x, y;
- gdouble x0, y0;
- const lglTemplateFrame *frame;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (view->label && GL_IS_LABEL(view->label));
-
- if (view->grid_visible)
- {
-
- frame = (lglTemplateFrame *)view->label->template->frames->data;
-
- gl_label_get_size (view->label, &w, &h);
-
- if (frame->shape == LGL_TEMPLATE_FRAME_SHAPE_RECT) {
- x0 = 0.0;
- y0 = 0.0;
- } else {
- /* round labels, adjust grid to line up with center of label. */
- x0 = fmod (w/2.0, view->grid_spacing);
- y0 = fmod (h/2.0, view->grid_spacing);
- }
-
-
- cairo_save (cr);
-
- cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
- cairo_set_line_width (cr, GRID_LINE_WIDTH_PIXELS/(view->home_scale * view->zoom));
- cairo_set_source_rgb (cr, GRID_RGB_ARGS);
-
- for ( x=x0+view->grid_spacing; x < w; x += view->grid_spacing )
- {
- cairo_move_to (cr, x, 0);
- cairo_line_to (cr, x, h);
- cairo_stroke (cr);
- }
-
- for ( y=y0+view->grid_spacing; y < h; y += view->grid_spacing )
- {
- cairo_move_to (cr, 0, y);
- cairo_line_to (cr, w, y);
- cairo_stroke (cr);
- }
-
- cairo_restore (cr);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Draw markup layer. */
-/*---------------------------------------------------------------------------*/
-static void
-draw_markup_layer (glView *view,
- cairo_t *cr)
-{
- glLabel *label;
- const lglTemplateFrame *frame;
- GList *p;
- lglTemplateMarkup *markup;
- gdouble width, height;
-
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (view->label && GL_IS_LABEL (view->label));
-
- if (view->markup_visible)
- {
-
- label = view->label;
- frame = (lglTemplateFrame *)view->label->template->frames->data;
-
- cairo_save (cr);
-
- if (label->rotate_flag)
- {
- lgl_template_frame_get_size (frame, &width, &height);
- cairo_rotate (cr, -M_PI/2.0);
- cairo_translate (cr, -width, 0.0);
- }
-
- cairo_set_line_width (cr, MARKUP_LINE_WIDTH_PIXELS/(view->home_scale * view->zoom));
- cairo_set_source_rgb (cr, MARKUP_RGB_ARGS);
-
- for ( p=frame->all.markups; p != NULL; p=p->next )
- {
- markup = (lglTemplateMarkup *)p->data;
-
- gl_cairo_markup_path (cr, markup, label);
-
- cairo_stroke (cr);
- }
-
- cairo_restore (cr);
- }
-
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Draw objects layer. */
-/*---------------------------------------------------------------------------*/
-static void
-draw_objects_layer (glView *view,
- cairo_t *cr)
-{
- gl_label_draw (view->label, cr, TRUE, NULL);
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Draw foreground */
-/*---------------------------------------------------------------------------*/
-static void
-draw_fg_layer (glView *view,
- cairo_t *cr)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (view->label && GL_IS_LABEL (view->label));
-
- gl_cairo_label_path (cr, view->label->template, view->label->rotate_flag, FALSE);
-
- cairo_set_line_width (cr, OUTLINE_WIDTH_PIXELS/(view->home_scale * view->zoom));
- cairo_set_source_rgb (cr, OUTLINE_RGB_ARGS);
- cairo_stroke (cr);
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Create highlight layer. */
-/*---------------------------------------------------------------------------*/
-static void
-draw_highlight_layer (glView *view,
- cairo_t *cr)
-{
- GList *p_obj;
- glViewObject *view_object;
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- cairo_save (cr);
-
- cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
-
- for (p_obj = view->selected_object_list; p_obj != NULL; p_obj = p_obj->next)
- {
- view_object = GL_VIEW_OBJECT (p_obj->data);
-
- gl_view_object_draw_handles (view_object, cr);
- }
-
- cairo_restore (cr);
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Draw select region layer. */
-/*---------------------------------------------------------------------------*/
-static void
-draw_select_region_layer (glView *view,
- cairo_t *cr)
-{
- gdouble x1, y1;
- gdouble w, h;
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- if (view->select_region_visible)
- {
- x1 = MIN (view->select_region.x1, view->select_region.x2);
- y1 = MIN (view->select_region.y1, view->select_region.y2);
- w = fabs (view->select_region.x2 - view->select_region.x1);
- h = fabs (view->select_region.y2 - view->select_region.y1);
-
- cairo_save (cr);
-
- cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
-
- cairo_rectangle (cr, x1, y1, w, h);
-
- cairo_set_source_rgba (cr, SELECT_FILL_RGBA_ARGS);
- cairo_fill_preserve (cr);
-
- cairo_set_line_width (cr, SELECT_LINE_WIDTH_PIXELS/(view->home_scale * view->zoom));
- cairo_set_source_rgba (cr, SELECT_LINE_RGBA_ARGS);
- cairo_stroke (cr);
-
- cairo_restore (cr);
- }
-}
-
-
-/*****************************************************************************/
-/* Show grid. */
-/*****************************************************************************/
-void
-gl_view_show_grid (glView *view)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->grid_visible = TRUE;
- gl_view_update (view);
-}
-
-
-/*****************************************************************************/
-/* Hide grid. */
-/*****************************************************************************/
-void
-gl_view_hide_grid (glView *view)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->grid_visible = FALSE;
- gl_view_update (view);
-}
-
-
-/*****************************************************************************/
-/* Set grid spacing. */
-/*****************************************************************************/
-void
-gl_view_set_grid_spacing (glView *view,
- gdouble spacing)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->grid_spacing = spacing;
- gl_view_update (view);
-}
-
-
-/*****************************************************************************/
-/* Show markup. */
-/*****************************************************************************/
-void
-gl_view_show_markup (glView *view)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->markup_visible = TRUE;
- gl_view_update (view);
-}
-
-
-/*****************************************************************************/
-/* Hide markup. */
-/*****************************************************************************/
-void
-gl_view_hide_markup (glView *view)
-{
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->markup_visible = FALSE;
- gl_view_update (view);
-}
-
-
-/*****************************************************************************/
-/* Set arrow mode. */
-/*****************************************************************************/
-void
-gl_view_arrow_mode (glView *view)
-{
- GdkCursor *cursor;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- cursor = gdk_cursor_new (GDK_LEFT_PTR);
- gdk_window_set_cursor (view->canvas->window, cursor);
- gdk_cursor_unref (cursor);
-
- view->mode = GL_VIEW_MODE_ARROW;
- view->state = GL_VIEW_IDLE;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Set create text object mode. */
-/*****************************************************************************/
-void
-gl_view_object_create_mode (glView *view,
- glLabelObjectType type)
-{
- GdkCursor *cursor = NULL;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- switch (type)
- {
- case GL_LABEL_OBJECT_BOX:
- cursor = gl_view_box_get_create_cursor ();
- break;
- case GL_LABEL_OBJECT_ELLIPSE:
- cursor = gl_view_ellipse_get_create_cursor ();
- break;
- case GL_LABEL_OBJECT_LINE:
- cursor = gl_view_line_get_create_cursor ();
- break;
- case GL_LABEL_OBJECT_IMAGE:
- cursor = gl_view_image_get_create_cursor ();
- break;
- case GL_LABEL_OBJECT_TEXT:
- cursor = gl_view_text_get_create_cursor ();
- break;
- case GL_LABEL_OBJECT_BARCODE:
- cursor = gl_view_barcode_get_create_cursor ();
- break;
- default:
- g_message ("Invalid label object type.");/*Should not happen!*/
- break;
- }
-
- gdk_window_set_cursor (view->canvas->window, cursor);
- gdk_cursor_unref (cursor);
-
- view->mode = GL_VIEW_MODE_OBJECT_CREATE;
- view->state = GL_VIEW_IDLE;
- view->create_type = type;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Select given object (adding to current selection). */
-/*****************************************************************************/
-void
-gl_view_select_object (glView *view,
- glViewObject *view_object)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- select_object_real (view, view_object);
-
- g_signal_emit (G_OBJECT(view), signals[SELECTION_CHANGED], 0);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Unselect given object (removing from current selection). */
-/*****************************************************************************/
-void
-gl_view_unselect_object (glView *view,
- glViewObject *view_object)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- unselect_object_real (view, view_object);
-
- g_signal_emit (G_OBJECT(view), signals[SELECTION_CHANGED], 0);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Select all items. */
-/*****************************************************************************/
-void
-gl_view_select_all (glView *view)
-{
- GList *p, *p_next;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- /* 1st unselect anything already selected. */
- for (p = view->selected_object_list; p != NULL; p = p_next) {
- p_next = p->next;
- unselect_object_real (view, GL_VIEW_OBJECT (p->data));
- }
-
- /* Finally select all objects. */
- for (p = view->object_list; p != NULL; p = p->next) {
- select_object_real (view, GL_VIEW_OBJECT (p->data));
- }
-
- g_signal_emit (G_OBJECT(view), signals[SELECTION_CHANGED], 0);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Remove all selections */
-/*****************************************************************************/
-void
-gl_view_unselect_all (glView *view)
-{
- GList *p;
- GList *p_next;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p_next) {
- p_next = p->next;
- unselect_object_real (view, GL_VIEW_OBJECT (p->data));
- }
-
- g_signal_emit (G_OBJECT(view), signals[SELECTION_CHANGED], 0);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Select all objects within given rectangular region (adding to selection). */
-/*****************************************************************************/
-void
-gl_view_select_region (glView *view,
- glLabelRegion *region)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble r_x1, r_y1;
- gdouble r_x2, r_y2;
- glLabelRegion obj_extent;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- r_x1 = MIN (region->x1, region->x2);
- r_y1 = MIN (region->y1, region->y2);
- r_x2 = MAX (region->x1, region->x2);
- r_y2 = MAX (region->y1, region->y2);
-
- for (p = view->object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT(p->data);
- if (!gl_view_is_object_selected (view, view_object))
- {
-
- object = gl_view_object_get_object (view_object);
-
- gl_label_object_get_extent (object, &obj_extent);
- if ((obj_extent.x1 >= r_x1) &&
- (obj_extent.x2 <= r_x2) &&
- (obj_extent.y1 >= r_y1) &&
- (obj_extent.y2 <= r_y2))
- {
- select_object_real (view, view_object);
- }
-
- }
- }
-
- g_signal_emit (G_OBJECT(view), signals[SELECTION_CHANGED], 0);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Select an object. */
-/*---------------------------------------------------------------------------*/
-static void
-select_object_real (glView *view,
- glViewObject *view_object)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (GL_IS_VIEW_OBJECT (view_object));
-
- if (!gl_view_is_object_selected (view, view_object)) {
- view->selected_object_list =
- g_list_append (view->selected_object_list, view_object);
- }
- gtk_widget_grab_focus (GTK_WIDGET (view->canvas));
-
- gl_view_update (view);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Un-select object. */
-/*---------------------------------------------------------------------------*/
-static void
-unselect_object_real (glView *view,
- glViewObject *view_object)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (GL_IS_VIEW_OBJECT (view_object));
-
- view->selected_object_list =
- g_list_remove (view->selected_object_list, view_object);
-
- gl_view_update (view);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Return object at (x,y). */
-/*---------------------------------------------------------------------------*/
-static glViewObject *
-view_view_object_at (glView *view,
- cairo_t *cr,
- gdouble x,
- gdouble y)
-{
- GList *p_obj;
- glViewObject *view_object;
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), NULL);
-
- for (p_obj = g_list_last (view->object_list); p_obj != NULL; p_obj = p_obj->prev)
- {
-
- view_object = GL_VIEW_OBJECT (p_obj->data);
-
- if (gl_view_object_at (view_object, cr, x, y))
- {
- return view_object;
- }
-
- }
-
- return NULL;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Return object handle at (x,y). */
-/*---------------------------------------------------------------------------*/
-static glViewObject *
-view_handle_at (glView *view,
- cairo_t *cr,
- gdouble x,
- gdouble y,
- glViewObjectHandle *handle)
-{
- GList *p_obj;
- glViewObject *view_object;
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), NULL);
-
- for (p_obj = g_list_last (view->selected_object_list); p_obj != NULL; p_obj = p_obj->prev)
- {
-
- view_object = GL_VIEW_OBJECT (p_obj->data);
-
- if ((*handle = gl_view_object_handle_at (view_object, cr, x, y)))
- {
- return view_object;
- }
-
- }
-
- return NULL;
-}
-
-
-/*****************************************************************************/
-/* Is the object in our current selection? */
-/*****************************************************************************/
-gboolean
-gl_view_is_object_selected (glView *view,
- glViewObject *view_object)
-{
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
- g_return_val_if_fail (GL_IS_VIEW_OBJECT (view_object), FALSE);
-
- if (g_list_find (view->selected_object_list, view_object) == NULL) {
- return FALSE;
- }
- return TRUE;
-}
-
-
-/*****************************************************************************/
-/* Is our current selection empty? */
-/*****************************************************************************/
-gboolean
-gl_view_is_selection_empty (glView *view)
-{
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
-
- if (view->selected_object_list == NULL) {
- return TRUE;
- } else {
- return FALSE;
- }
-}
-
-
-/*****************************************************************************/
-/* Is our current selection atomic? I.e. only one item selected. */
-/*****************************************************************************/
-gboolean
-gl_view_is_selection_atomic (glView *view)
-{
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
-
- if (view->selected_object_list == NULL)
- return FALSE;
- if (view->selected_object_list->next == NULL)
- return TRUE;
- return FALSE;
-}
-
-
-/*****************************************************************************/
-/* Delete selected objects. (Bypass clipboard) */
-/*****************************************************************************/
-void
-gl_view_delete_selection (glView *view)
-{
- GList *object_list;
- GList *p;
- GList *p_next;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- object_list = view->selected_object_list;
- view->selected_object_list = NULL;
- g_signal_emit (G_OBJECT(view), signals[SELECTION_CHANGED], 0);
-
- for (p = object_list; p != NULL; p = p_next) {
- p_next = p->next;
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_remove (object);
- }
-
- g_list_free (object_list);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Get object property editor of first selected object. */
-/*****************************************************************************/
-GtkWidget *
-gl_view_get_editor (glView *view)
-{
- glViewObject *view_object;
- GtkWidget *editor = NULL;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), NULL);
-
- if (!gl_view_is_selection_empty (view)) {
-
- view_object = GL_VIEW_OBJECT(view->selected_object_list->data);
- editor = gl_view_object_get_editor (view_object);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-
- return editor;
-}
-
-
-/*****************************************************************************/
-/* Raise selected items to top. */
-/*****************************************************************************/
-void
-gl_view_raise_selection (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_raise_to_top (object);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Lower selected items to bottom. */
-/*****************************************************************************/
-void
-gl_view_lower_selection (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_lower_to_bottom (object);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Rotate selected objects by given angle. */
-/*****************************************************************************/
-void
-gl_view_rotate_selection (glView *view,
- gdouble theta_degs)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_rotate (object, theta_degs);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Rotate selected objects 90 degrees left. */
-/*****************************************************************************/
-void
-gl_view_rotate_selection_left (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_rotate (object, -90.0);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Rotate selected objects 90 degrees right. */
-/*****************************************************************************/
-void
-gl_view_rotate_selection_right (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_rotate (object, 90.0);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Flip selected objects horizontally. */
-/*****************************************************************************/
-void
-gl_view_flip_selection_horiz (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_flip_horiz (object);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Flip selected objects vertically. */
-/*****************************************************************************/
-void
-gl_view_flip_selection_vert (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_flip_vert (object);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Align selected objects to left most edge. */
-/*****************************************************************************/
-void
-gl_view_align_selection_left (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble dx, x1_min;
- glLabelRegion obj_extent;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- g_return_if_fail (!gl_view_is_selection_empty (view) &&
- !gl_view_is_selection_atomic (view));
-
- /* find left most edge */
- p = view->selected_object_list;
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- x1_min = obj_extent.x1;
- for (p = p->next; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- if ( obj_extent.x1 < x1_min ) x1_min = obj_extent.x1;
- }
-
- /* now adjust the object positions to line up the left edges */
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dx = x1_min - obj_extent.x1;
- gl_label_object_set_position_relative (object, dx, 0.0);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Align selected objects to right most edge. */
-/*****************************************************************************/
-void
-gl_view_align_selection_right (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble dx, x2_max;
- glLabelRegion obj_extent;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- g_return_if_fail (!gl_view_is_selection_empty (view) &&
- !gl_view_is_selection_atomic (view));
-
- /* find right most edge */
- p = view->selected_object_list;
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- x2_max = obj_extent.x2;
- for (p = p->next; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- if ( obj_extent.x2 > x2_max ) x2_max = obj_extent.x2;
- }
-
- /* now adjust the object positions to line up the right edges */
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dx = x2_max - obj_extent.x2;
- gl_label_object_set_position_relative (object, dx, 0.0);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Align selected objects to horizontal center of objects. */
-/*****************************************************************************/
-void
-gl_view_align_selection_hcenter (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble dx;
- gdouble dxmin;
- gdouble xsum, xavg;
- glLabelRegion obj_extent;
- gdouble xcenter;
- gint n;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- g_return_if_fail (!gl_view_is_selection_empty (view) &&
- !gl_view_is_selection_atomic (view));
-
- /* find average center of objects */
- xsum = 0.0;
- n = 0;
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- xsum += (obj_extent.x1 + obj_extent.x2) / 2.0;
- n++;
- }
- xavg = xsum / n;
-
- /* find center of object closest to average center */
- p = view->selected_object_list;
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dxmin = fabs (xavg - (obj_extent.x1 + obj_extent.x2)/2.0);
- xcenter = (obj_extent.x1 + obj_extent.x2)/2.0;
- for (p = p->next; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dx = fabs (xavg - (obj_extent.x1 + obj_extent.x2)/2.0);
- if ( dx < dxmin )
- {
- dxmin = dx;
- xcenter = (obj_extent.x1 + obj_extent.x2)/2.0;
- }
- }
-
- /* now adjust the object positions to line up this center */
- for (p = view->selected_object_list; p != NULL; p = p->next) {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dx = xcenter - (obj_extent.x1 + obj_extent.x2)/2.0;
- gl_label_object_set_position_relative (object, dx, 0.0);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Align selected objects to top most edge. */
-/*****************************************************************************/
-void
-gl_view_align_selection_top (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble dy, y1_min;
- glLabelRegion obj_extent;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- g_return_if_fail (!gl_view_is_selection_empty (view) &&
- !gl_view_is_selection_atomic (view));
-
- /* find top most edge */
- p = view->selected_object_list;
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- y1_min = obj_extent.y1;
- for (p = p->next; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- if ( obj_extent.y1 < y1_min ) y1_min = obj_extent.y1;
- }
-
- /* now adjust the object positions to line up the top edges */
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dy = y1_min - obj_extent.y1;
- gl_label_object_set_position_relative (object, 0.0, dy);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Align selected objects to bottom most edge. */
-/*****************************************************************************/
-void
-gl_view_align_selection_bottom (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble dy, y2_max;
- glLabelRegion obj_extent;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- g_return_if_fail (!gl_view_is_selection_empty (view) &&
- !gl_view_is_selection_atomic (view));
-
- /* find bottom most edge */
- p = view->selected_object_list;
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- y2_max = obj_extent.y2;
- for (p = p->next; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- if ( obj_extent.y2 > y2_max ) y2_max = obj_extent.y2;
- }
-
- /* now adjust the object positions to line up the bottom edges */
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dy = y2_max - obj_extent.y2;
- gl_label_object_set_position_relative (object, 0.0, dy);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Align selected objects to viertical center of objects. */
-/*****************************************************************************/
-void
-gl_view_align_selection_vcenter (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble dy;
- gdouble dymin;
- gdouble ysum, yavg;
- glLabelRegion obj_extent;
- gdouble ycenter;
- gint n;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- g_return_if_fail (!gl_view_is_selection_empty (view) &&
- !gl_view_is_selection_atomic (view));
-
- /* find average center of objects */
- ysum = 0.0;
- n = 0;
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- ysum += (obj_extent.y1 + obj_extent.y2) / 2.0;
- n++;
- }
- yavg = ysum / n;
-
- /* find center of object closest to average center */
- p = view->selected_object_list;
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dymin = fabs (yavg - (obj_extent.y1 + obj_extent.y2)/2.0);
- ycenter = (obj_extent.y1 + obj_extent.y2)/2.0;
- for (p = p->next; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dy = fabs (yavg - (obj_extent.y1 + obj_extent.y2)/2.0);
- if ( dy < dymin )
- {
- dymin = dy;
- ycenter = (obj_extent.y1 + obj_extent.y2)/2.0;
- }
- }
-
- /* now adjust the object positions to line up this center */
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- dy = ycenter - (obj_extent.y1 + obj_extent.y2)/2.0;
- gl_label_object_set_position_relative (object, 0.0, dy);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Center selected objects to in center of label. */
-/*****************************************************************************/
-void
-gl_view_center_selection_horiz (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble dx;
- gdouble x_label_center;
- gdouble x_obj_center;
- glLabelRegion obj_extent;
- gdouble w, h;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- g_return_if_fail (!gl_view_is_selection_empty (view));
-
- gl_label_get_size (view->label, &w, &h);
- x_label_center = w / 2.0;
-
- /* adjust the object positions */
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- x_obj_center = (obj_extent.x1 + obj_extent.x2) / 2.0;
- dx = x_label_center - x_obj_center;
- gl_label_object_set_position_relative (object, dx, 0.0);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Center selected objects to in center of label. */
-/*****************************************************************************/
-void
-gl_view_center_selection_vert (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
- gdouble dy;
- gdouble y_label_center;
- gdouble y_obj_center;
- glLabelRegion obj_extent;
- gdouble w, h;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- g_return_if_fail (!gl_view_is_selection_empty (view));
-
- gl_label_get_size (view->label, &w, &h);
- y_label_center = h / 2.0;
-
- /* adjust the object positions */
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
- gl_label_object_get_extent (object, &obj_extent);
- y_obj_center = (obj_extent.y1 + obj_extent.y2) / 2.0;
- dy = y_label_center - y_obj_center;
- gl_label_object_set_position_relative (object, 0.0, dy);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Move selected objects */
-/*****************************************************************************/
-void
-gl_view_move_selection (glView *view,
- gdouble dx,
- gdouble dy)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_position_relative (object, dx, dy);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Can text properties be set for selection? */
-/*****************************************************************************/
-gboolean
-gl_view_can_selection_text (glView *view)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
-
- for (p = view->selected_object_list; p != NULL; p = p->next)
- {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- if (gl_label_object_can_text (object))
- {
- return TRUE;
- }
-
- }
-
- return FALSE;
-}
-
-
-/*****************************************************************************/
-/* Set font family for all text contained in selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_font_family (glView *view,
- const gchar *font_family)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_font_family (object, font_family);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Set font size for all text contained in selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_font_size (glView *view,
- gdouble font_size)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_font_size (object, font_size);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Set font weight for all text contained in selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_font_weight (glView *view,
- PangoWeight font_weight)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_font_weight (object, font_weight);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Set font italic flag for all text contained in selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_font_italic_flag (glView *view,
- gboolean font_italic_flag)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_font_italic_flag (object, font_italic_flag);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Set text alignment for all text contained in selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_text_alignment (glView *view,
- PangoAlignment text_alignment)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_text_alignment (object, text_alignment);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Set text line spacing for all text contained in selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_text_line_spacing (glView *view,
- gdouble text_line_spacing)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_text_line_spacing (object, text_line_spacing);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Set text color for all text contained in selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_text_color (glView *view,
- glColorNode *text_color_node)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_text_color (object, text_color_node);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Can fill properties be set for selection? */
-/*****************************************************************************/
-gboolean
-gl_view_can_selection_fill (glView *view)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- if (gl_label_object_can_fill (object)) {
- return TRUE;
- }
-
- }
-
- return FALSE;
-}
-
-
-/*****************************************************************************/
-/* Set fill color for all selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_fill_color (glView *view,
- glColorNode *fill_color_node)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_fill_color (object, fill_color_node);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Can line color properties be set for selection? */
-/*****************************************************************************/
-gboolean
-gl_view_can_selection_line_color (glView *view)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- if (gl_label_object_can_line_color (object)) {
- return TRUE;
- }
-
- }
-
- return FALSE;
-}
-
-
-/*****************************************************************************/
-/* Set line color for all selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_line_color (glView *view,
- glColorNode *line_color_node)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_line_color (object, line_color_node);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Can line width properties be set for selection? */
-/*****************************************************************************/
-gboolean
-gl_view_can_selection_line_width (glView *view)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- if (gl_label_object_can_line_width (object)) {
- return TRUE;
- }
-
- }
-
- return FALSE;
-}
-
-
-/*****************************************************************************/
-/* Set line width for all selected objects. */
-/*****************************************************************************/
-void
-gl_view_set_selection_line_width (glView *view,
- gdouble line_width)
-{
- GList *p;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- object = gl_view_object_get_object(GL_VIEW_OBJECT (p->data));
- gl_label_object_set_line_width (object, line_width);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* "Cut" selected items and place in clipboard selections. */
-/*****************************************************************************/
-void
-gl_view_cut (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- gl_view_copy (view);
- gl_view_delete_selection (view);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* "Copy" selected items to clipboard selections. */
-/*****************************************************************************/
-void
-gl_view_copy (glView *view)
-{
- GList *p;
- glViewObject *view_object;
- glLabelObject *object;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- if (view->selected_object_list) {
-
- if ( view->selection_data ) {
- g_object_unref (view->selection_data);
- }
- view->selection_data = GL_LABEL(gl_label_new ());
- gl_label_set_template (view->selection_data, view->label->template);
- gl_label_set_rotate_flag (view->selection_data, view->label->rotate_flag);
-
- for (p = view->selected_object_list; p != NULL; p = p->next) {
-
- view_object = GL_VIEW_OBJECT (p->data);
- object = gl_view_object_get_object (view_object);
-
- gl_label_object_dup (object, view->selection_data);
-
- }
-
- gtk_selection_owner_set (view->invisible,
- clipboard_atom, GDK_CURRENT_TIME);
- view->have_selection = TRUE;
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* "Paste" from private clipboard selection. */
-/*****************************************************************************/
-void
-gl_view_paste (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- gtk_selection_convert (GTK_WIDGET (view->invisible),
- clipboard_atom, GDK_SELECTION_TYPE_STRING,
- GDK_CURRENT_TIME);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Zoom in one "notch" */
-/*****************************************************************************/
-void
-gl_view_zoom_in (glView *view)
-{
- gint i, i_min;
- gdouble dist, dist_min;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- /* Find index of current scale (or best match) */
- i_min = 1; /* start with 2nd largest scale */
- dist_min = fabs (zooms[1] - view->zoom);
- for (i = 2; i < N_ZOOMS; i++) {
- dist = fabs (zooms[i] - view->zoom);
- if (dist < dist_min) {
- i_min = i;
- dist_min = dist;
- }
- }
-
- /* zoom in one "notch" */
- i = MAX (0, i_min - 1);
- gl_debug (DEBUG_VIEW, "zoom[%d] = %g", i, zooms[i]);
- set_zoom_real (view, zooms[i], FALSE);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Zoom out one "notch" */
-/*****************************************************************************/
-void
-gl_view_zoom_out (glView *view)
-{
- gint i, i_min;
- gdouble dist, dist_min;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- /* Find index of current scale (or best match) */
- i_min = 0; /* start with largest scale */
- dist_min = fabs (zooms[0] - view->zoom);
- for (i = 1; i < N_ZOOMS; i++) {
- dist = fabs (zooms[i] - view->zoom);
- if (dist < dist_min) {
- i_min = i;
- dist_min = dist;
- }
- }
-
- /* zoom out one "notch" */
- if (i_min >= N_ZOOMS)
- return;
- i = i_min + 1;
- if (i >= N_ZOOMS)
- return;
- set_zoom_real (view, zooms[i], FALSE);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*****************************************************************************/
-/* Set zoom to best fit. */
-/*****************************************************************************/
-void
-gl_view_zoom_to_fit (glView *view)
-{
- gint w_view, h_view;
- gdouble w_label, h_label;
- gdouble x_scale, y_scale, scale;
-
- gl_debug (DEBUG_VIEW, "");
-
- if ( ! GTK_WIDGET_VISIBLE(view)) {
- set_zoom_real (view, 1.0, TRUE);
- return;
- }
-
- w_view = GTK_WIDGET(view)->allocation.width;
- h_view = GTK_WIDGET(view)->allocation.height;
-
- gl_label_get_size (GL_LABEL(view->label), &w_label, &h_label);
-
- gl_debug (DEBUG_VIEW, "View size: %d, %d", w_view, h_view);
- gl_debug (DEBUG_VIEW, "Label size: %g, %g", w_label, h_label);
-
- /* Calculate best scale */
- x_scale = (double)(w_view - ZOOMTOFIT_PAD) / w_label;
- y_scale = (double)(h_view - ZOOMTOFIT_PAD) / h_label;
- scale = MIN (x_scale, y_scale);
- gl_debug (DEBUG_VIEW, "Candidate zooms: %g, %g => %g", x_scale, y_scale, scale);
-
- /* Limit */
- gl_debug (DEBUG_VIEW, "Scale: %g", scale);
- scale = MIN (scale, zooms[0]*view->home_scale);
- scale = MAX (scale, zooms[N_ZOOMS-1]*view->home_scale);
- gl_debug (DEBUG_VIEW, "Limitted scale: %g", scale);
-
- set_zoom_real (view, scale/view->home_scale, TRUE);
-}
-
-
-/*****************************************************************************/
-/* Set current zoom factor to explicit value. */
-/*****************************************************************************/
-void
-gl_view_set_zoom (glView *view,
- gdouble zoom)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- set_zoom_real (view, zoom, FALSE);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Set canvas scale. */
-/*---------------------------------------------------------------------------*/
-static void
-set_zoom_real (glView *view,
- gdouble zoom,
- gboolean zoom_to_fit_flag)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
- g_return_if_fail (zoom > 0.0);
-
- /* Limit, if needed */
- gl_debug (DEBUG_VIEW, "Zoom requested: %g", zoom);
- zoom = MIN (zoom, zooms[0]);
- zoom = MAX (zoom, zooms[N_ZOOMS-1]);
- gl_debug (DEBUG_VIEW, "Limitted zoom: %g", zoom);
-
- if ( zoom != view->zoom ) {
-
- view->zoom = zoom;
- view->zoom_to_fit_flag = zoom_to_fit_flag;
-
- gl_view_update (view);
-
- g_signal_emit (G_OBJECT(view), signals[ZOOM_CHANGED], 0, zoom);
-
- }
-
- gl_debug (DEBUG_VIEW, "END");
-
-}
-
-
-/*****************************************************************************/
-/* Get current zoom factor. */
-/*****************************************************************************/
-gdouble
-gl_view_get_zoom (glView *view)
-{
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), 1.0);
-
- return view->zoom;
-}
-
-
-/*****************************************************************************/
-/* Is this the maximum zoom level. */
-/*****************************************************************************/
-gboolean
-gl_view_is_zoom_max (glView *view)
-{
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (GL_IS_VIEW (view), FALSE);
-
- return view->zoom >= zooms[0];
-}
-
-
-/*****************************************************************************/
-/* Is this the minimum zoom level. */
-/*****************************************************************************/
-gboolean
-gl_view_is_zoom_min (glView *view)
-{
- gl_debug (DEBUG_VIEW, "");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
-
- return view->zoom <= zooms[N_ZOOMS-1];
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Handle "selection-clear" signal. */
-/*---------------------------------------------------------------------------*/
-static void
-selection_clear_cb (GtkWidget *widget,
- GdkEventSelection *event,
- glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->have_selection = FALSE;
- g_object_unref (view->selection_data);
- view->selection_data = NULL;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Handle "selection-get" signal. */
-/*---------------------------------------------------------------------------*/
-static void
-selection_get_cb (GtkWidget *widget,
- GtkSelectionData *selection_data,
- guint info,
- guint time,
- glView *view)
-{
- gchar *buffer;
- glXMLLabelStatus status;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- if (view->have_selection) {
-
- buffer = gl_xml_label_save_buffer (view->selection_data,
- &status);
- gtk_selection_data_set (selection_data,
- GDK_SELECTION_TYPE_STRING, 8,
- (guchar *)buffer, strlen (buffer));
- g_free (buffer);
- }
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Handle "selection-received" signal. (Result of Paste) */
-/*---------------------------------------------------------------------------*/
-static void
-selection_received_cb (GtkWidget *widget,
- GtkSelectionData *selection_data,
- guint time,
- glView *view)
-{
- glLabel *label = NULL;
- glXMLLabelStatus status;
- GList *p, *p_next;
- glLabelObject *object, *newobject;
-
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- if (selection_data->length < 0) {
- return;
- }
- if (selection_data->type != GDK_SELECTION_TYPE_STRING) {
- return;
- }
-
- gl_view_unselect_all (view);
-
- label = gl_xml_label_open_buffer ((gchar *)selection_data->data, &status);
- for (p = label->objects; p != NULL; p = p_next) {
- p_next = p->next;
-
- object = (glLabelObject *) p->data;
- newobject = gl_label_object_dup (object, view->label);
-
- gl_debug (DEBUG_VIEW, "object pasted");
- }
- g_object_unref (label);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default font family. */
-/****************************************************************************/
-void
-gl_view_set_default_font_family (glView *view,
- const gchar *font_family)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- if (view->default_font_family) {
- g_free (view->default_font_family);
- }
- view->default_font_family = g_strdup (font_family);
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default font size. */
-/****************************************************************************/
-void
-gl_view_set_default_font_size (glView *view,
- gdouble font_size)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_font_size = font_size;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default font weight. */
-/****************************************************************************/
-void
-gl_view_set_default_font_weight (glView *view,
- PangoWeight font_weight)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_font_weight = font_weight;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default font italic flag. */
-/****************************************************************************/
-void
-gl_view_set_default_font_italic_flag (glView *view,
- gboolean font_italic_flag)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_font_italic_flag = font_italic_flag;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default text color. */
-/****************************************************************************/
-void
-gl_view_set_default_text_color (glView *view,
- guint text_color)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_text_color = text_color;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default text alignment. */
-/****************************************************************************/
-void
-gl_view_set_default_text_alignment (glView *view,
- PangoAlignment text_alignment)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_text_alignment = text_alignment;
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default text line spacing. */
-/****************************************************************************/
-void
-gl_view_set_default_text_line_spacing (glView *view,
- gdouble text_line_spacing)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_text_line_spacing = text_line_spacing;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default line width. */
-/****************************************************************************/
-void
-gl_view_set_default_line_width (glView *view,
- gdouble line_width)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_line_width = line_width;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default line color. */
-/****************************************************************************/
-void
-gl_view_set_default_line_color (glView *view,
- guint line_color)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_line_color = line_color;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Set default fill color. */
-/****************************************************************************/
-void
-gl_view_set_default_fill_color (glView *view,
- guint fill_color)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_if_fail (view && GL_IS_VIEW (view));
-
- view->default_fill_color = fill_color;
-
- gl_debug (DEBUG_VIEW, "END");
-}
-
-
-/****************************************************************************/
-/* Get default font family. */
-/****************************************************************************/
-gchar *
-gl_view_get_default_font_family (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), NULL);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return g_strdup (view->default_font_family);
-}
-
-
-/****************************************************************************/
-/* Get default font size. */
-/****************************************************************************/
-gdouble
-gl_view_get_default_font_size (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), 12.0);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_font_size;
-}
-
-
-/****************************************************************************/
-/* Get default font weight. */
-/****************************************************************************/
-PangoWeight
-gl_view_get_default_font_weight (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), PANGO_WEIGHT_NORMAL);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_font_weight;
-}
-
-
-/****************************************************************************/
-/* Get default font italic flag. */
-/****************************************************************************/
-gboolean
-gl_view_get_default_font_italic_flag (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), FALSE);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_font_italic_flag;
-}
-
-
-/****************************************************************************/
-/* Get default text color. */
-/****************************************************************************/
-guint
-gl_view_get_default_text_color (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), 0);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_text_color;
-}
-
-
-/****************************************************************************/
-/* Get default text alignment. */
-/****************************************************************************/
-PangoAlignment
-gl_view_get_default_text_alignment (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), PANGO_ALIGN_LEFT);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_text_alignment;
-}
-
-
-/****************************************************************************/
-/* Get default text line spacing. */
-/****************************************************************************/
-gdouble
-gl_view_get_default_text_line_spacing (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), 1.0);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_text_line_spacing;
-}
-
-
-/****************************************************************************/
-/* Get default line width. */
-/****************************************************************************/
-gdouble
-gl_view_get_default_line_width (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), 1.0);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_line_width;
-}
-
-
-/****************************************************************************/
-/* Get default line color. */
-/****************************************************************************/
-guint
-gl_view_get_default_line_color (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), 0);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_line_color;
-}
-
-
-/****************************************************************************/
-/* Get default fill color. */
-/****************************************************************************/
-guint
-gl_view_get_default_fill_color (glView *view)
-{
- gl_debug (DEBUG_VIEW, "START");
-
- g_return_val_if_fail (view && GL_IS_VIEW (view), 0);
-
- gl_debug (DEBUG_VIEW, "END");
-
- return view->default_fill_color;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Focus in event handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-focus_in_event_cb (glView *view,
- GdkEventFocus *event)
-{
- GTK_WIDGET_SET_FLAGS (GTK_WIDGET (view->canvas), GTK_HAS_FOCUS);
-
- return FALSE;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Focus out event handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-focus_out_event_cb (glView *view,
- GdkEventFocus *event)
-{
- GTK_WIDGET_UNSET_FLAGS (GTK_WIDGET (view->canvas), GTK_HAS_FOCUS);
-
- return FALSE;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Enter notify event handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-enter_notify_event_cb (glView *view,
- GdkEventCrossing *event)
-{
- gtk_widget_grab_focus(GTK_WIDGET (view->canvas));
-
- return FALSE;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Leave notify event handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-leave_notify_event_cb (glView *view,
- GdkEventCrossing *event)
-{
-
- g_signal_emit (G_OBJECT(view), signals[POINTER_EXIT], 0);
-
- return FALSE;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Motion notify event handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-motion_notify_event_cb (glView *view,
- GdkEventMotion *event)
-{
- gboolean return_value = FALSE;
- cairo_t *cr;
- gdouble scale;
- gdouble x, y;
- GdkCursor *cursor;
- glViewObjectHandle handle;
-
- cr = gdk_cairo_create (GTK_LAYOUT (view->canvas)->bin_window);
-
- /*
- * Translate to label coordinates
- */
- scale = view->zoom * view->home_scale;
- cairo_scale (cr, scale, scale);
- cairo_translate (cr, view->x0, view->y0);
-
- x = event->x;
- y = event->y;
- cairo_device_to_user (cr, &x, &y);
-
- /*
- * Emit signal regardless of mode
- */
- g_signal_emit (G_OBJECT(view), signals[POINTER_MOVED], 0, x, y);
-
- /*
- * Handle event as appropriate for mode
- */
- switch (view->mode)
- {
-
- case GL_VIEW_MODE_ARROW:
- switch (view->state)
- {
-
- case GL_VIEW_IDLE:
- if ( gl_view_is_selection_atomic (view) &&
- view_handle_at (view, cr, event->x, event->y, &handle) )
- {
- cursor = gdk_cursor_new (GDK_CROSSHAIR);
- }
- else if (view_view_object_at (view, cr, event->x, event->y))
- {
- cursor = gdk_cursor_new (GDK_FLEUR);
- }
- else
- {
- cursor = gdk_cursor_new (GDK_LEFT_PTR);
- }
- gdk_window_set_cursor (view->canvas->window, cursor);
- gdk_cursor_unref (cursor);
- break;
-
- case GL_VIEW_ARROW_SELECT_REGION:
-#ifdef CLIP_UPDATES
- gl_view_update_region (view, cr, &view->select_region);
-#endif
- view->select_region.x2 = x;
- view->select_region.y2 = y;
-#ifdef CLIP_UPDATES
- gl_view_update_region (view, cr, &view->select_region);
-#else
- gl_view_update (view);
-#endif
- break;
-
- case GL_VIEW_ARROW_MOVE:
- gl_view_move_selection (view,
- (x - view->move_last_x),
- (y - view->move_last_y));
- view->move_last_x = x;
- view->move_last_y = y;
- break;
-
- case GL_VIEW_ARROW_RESIZE:
- gl_view_object_resize_event (view->resize_object,
- view->resize_handle,
- view->resize_honor_aspect,
- cr,
- event->x,
- event->y);
- break;
-
- default:
- g_message ("Invalid arrow state."); /*Should not happen!*/
- }
- return_value = TRUE;
- break;
-
-
- case GL_VIEW_MODE_OBJECT_CREATE:
- if (view->state != GL_VIEW_IDLE)
- {
- switch (view->create_type)
- {
- case GL_LABEL_OBJECT_BOX:
- gl_view_box_create_motion_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_ELLIPSE:
- gl_view_ellipse_create_motion_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_LINE:
- gl_view_line_create_motion_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_IMAGE:
- gl_view_image_create_motion_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_TEXT:
- gl_view_text_create_motion_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_BARCODE:
- gl_view_barcode_create_motion_event (view, x, y);
- break;
- default:
- g_message ("Invalid create type."); /*Should not happen!*/
- }
- }
- break;
-
-
- default:
- g_message ("Invalid view mode."); /*Should not happen!*/
-
- }
-
- cairo_destroy (cr);
-
- /*
- * FIXME: we re-establish grabs here if the grab has been lost. We seem to be
- * losing grabs when we emit signals that lead to the manipulation of
- * the GtkUIManager. Needs more investigation
- */
- if (view->grabbed_flag && !gdk_pointer_is_grabbed ())
- {
- gdk_pointer_grab (GTK_LAYOUT (view->canvas)->bin_window,
- FALSE,
- (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK),
- NULL,
- NULL,
- event->time);
- }
-
- return return_value;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Button press event handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-button_press_event_cb (glView *view,
- GdkEventButton *event)
-{
- gboolean return_value = FALSE;
- cairo_t *cr;
- gdouble scale;
- gdouble x, y;
- glViewObject *view_object;
- glViewObjectHandle handle;
-
- cr = gdk_cairo_create (GTK_LAYOUT (view->canvas)->bin_window);
-
- /*
- * Translate to label coordinates
- */
- scale = view->zoom * view->home_scale;
- cairo_scale (cr, scale, scale);
- cairo_translate (cr, view->x0, view->y0);
-
- x = event->x;
- y = event->y;
- cairo_device_to_user (cr, &x, &y);
-
- switch (event->button)
- {
-
- case 1:
- /*
- * Handle event as appropriate for mode
- */
- switch (view->mode)
- {
- case GL_VIEW_MODE_ARROW:
- if ( gl_view_is_selection_atomic (view) &&
- (view_object = view_handle_at (view, cr, event->x, event->y, &handle)) )
- {
- view->resize_object = view_object;
- view->resize_handle = handle;
- view->resize_honor_aspect = event->state & GDK_CONTROL_MASK;
-
- view->state = GL_VIEW_ARROW_RESIZE;
- }
- else if ((view_object = view_view_object_at (view, cr, event->x, event->y)))
- {
- if (event->state & GDK_CONTROL_MASK)
- {
- if (gl_view_is_object_selected (view, view_object))
- {
- /* Un-selecting a selected item */
- gl_view_unselect_object (view, view_object);
- } else {
- /* Add to current selection */
- gl_view_select_object (view, view_object);
- }
- }
- else
- {
- if (!gl_view_is_object_selected (view, view_object))
- {
- /* remove any selections before adding */
- gl_view_unselect_all (view);
- /* Add to current selection */
- gl_view_select_object (view, view_object);
- }
- }
- view->move_last_x = x;
- view->move_last_y = y;
-
- view->state = GL_VIEW_ARROW_MOVE;
- }
- else
- {
- if (!(event->state & GDK_CONTROL_MASK))
- {
- gl_view_unselect_all (view);
- }
-
- view->select_region_visible = TRUE;
- view->select_region.x1 = x;
- view->select_region.y1 = y;
- view->select_region.x2 = x;
- view->select_region.y2 = y;
-
- view->state = GL_VIEW_ARROW_SELECT_REGION;
- }
-
-
- return_value = TRUE;
- break;
-
- case GL_VIEW_MODE_OBJECT_CREATE:
- switch (view->create_type)
- {
- case GL_LABEL_OBJECT_BOX:
- gl_view_box_create_button_press_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_ELLIPSE:
- gl_view_ellipse_create_button_press_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_LINE:
- gl_view_line_create_button_press_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_IMAGE:
- gl_view_image_create_button_press_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_TEXT:
- gl_view_text_create_button_press_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_BARCODE:
- gl_view_barcode_create_button_press_event (view, x, y);
- break;
- default:
- g_message ("Invalid create type."); /*Should not happen!*/
- }
- view->state = GL_VIEW_CREATE_DRAG;
- return_value = TRUE;
- break;
-
- default:
- g_message ("Invalid view mode."); /*Should not happen!*/
- }
-
- view->grabbed_flag = TRUE;
- gdk_pointer_grab (GTK_LAYOUT (view->canvas)->bin_window,
- FALSE,
- (GDK_BUTTON1_MOTION_MASK | GDK_BUTTON_RELEASE_MASK),
- NULL,
- NULL,
- event->time);
- break;
-
- case 3:
- g_signal_emit (G_OBJECT (view),
- signals[CONTEXT_MENU_ACTIVATE], 0,
- event->button, event->time);
- return_value = TRUE;
- break;
-
- }
-
- cairo_destroy (cr);
-
- return return_value;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Button release event handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-button_release_event_cb (glView *view,
- GdkEventButton *event)
-{
- gboolean return_value = FALSE;
- cairo_t *cr;
- gdouble scale;
- gdouble x, y;
- GdkCursor *cursor;
-
- cr = gdk_cairo_create (GTK_LAYOUT (view->canvas)->bin_window);
-
- /*
- * Translate to label coordinates
- */
- scale = view->zoom * view->home_scale;
- cairo_scale (cr, scale, scale);
- cairo_translate (cr, view->x0, view->y0);
-
- x = event->x;
- y = event->y;
- cairo_device_to_user (cr, &x, &y);
-
- switch (event->button)
- {
-
- case 1:
- view->grabbed_flag = FALSE;
- gdk_pointer_ungrab (event->time);
- /*
- * Handle event as appropriate for mode
- */
- switch (view->mode)
- {
- case GL_VIEW_MODE_ARROW:
- switch (view->state)
- {
- case GL_VIEW_ARROW_RESIZE:
- view->resize_object = NULL;
-
- view->state = GL_VIEW_IDLE;
- break;
-
- case GL_VIEW_ARROW_SELECT_REGION:
-#ifdef CLIP_UPDATES
- gl_view_update_region (view, cr, &view->select_region);
-#else
- gl_view_update (view);
-#endif
-
- view->select_region_visible = FALSE;
- view->select_region.x2 = x;
- view->select_region.y2 = y;
-
- gl_view_select_region (view, &view->select_region);
-
- view->state = GL_VIEW_IDLE;
- break;
-
- default:
- view->state = GL_VIEW_IDLE;
- break;
-
- }
-
- return_value = TRUE;
- break;
-
-
- case GL_VIEW_MODE_OBJECT_CREATE:
- switch (view->create_type)
- {
- case GL_LABEL_OBJECT_BOX:
- gl_view_box_create_button_release_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_ELLIPSE:
- gl_view_ellipse_create_button_release_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_LINE:
- gl_view_line_create_button_release_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_IMAGE:
- gl_view_image_create_button_release_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_TEXT:
- gl_view_text_create_button_release_event (view, x, y);
- break;
- case GL_LABEL_OBJECT_BARCODE:
- gl_view_barcode_create_button_release_event (view, x, y);
- break;
- default:
- g_message ("Invalid create type."); /*Should not happen!*/
- }
- view->mode = GL_VIEW_MODE_ARROW;
- view->state = GL_VIEW_IDLE;
- cursor = gdk_cursor_new (GDK_LEFT_PTR);
- gdk_window_set_cursor (view->canvas->window, cursor);
- gdk_cursor_unref (cursor);
- break;
-
-
- default:
- g_message ("Invalid view mode."); /*Should not happen!*/
- }
-
- }
-
- cairo_destroy (cr);
-
- return return_value;
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Key press event handler. */
-/*---------------------------------------------------------------------------*/
-static gboolean
-key_press_event_cb (glView *view,
- GdkEventKey *event)
-{
- GdkCursor *cursor;
-
- gl_debug (DEBUG_VIEW, "");
-
- if ( (view->mode == GL_VIEW_MODE_ARROW) &&
- (view->state == GL_VIEW_IDLE) )
- {
- switch (event->keyval) {
-
- case GDK_Left:
- case GDK_KP_Left:
- gl_view_move_selection (view, -1.0 / (view->zoom), 0.0);
- break;
- case GDK_Up:
- case GDK_KP_Up:
- gl_view_move_selection (view, 0.0, -1.0 / (view->zoom));
- break;
- case GDK_Right:
- case GDK_KP_Right:
- gl_view_move_selection (view, 1.0 / (view->zoom), 0.0);
- break;
- case GDK_Down:
- case GDK_KP_Down:
- gl_view_move_selection (view, 0.0, 1.0 / (view->zoom));
- break;
- case GDK_Delete:
- case GDK_KP_Delete:
- gl_view_delete_selection (view);
- cursor = gdk_cursor_new (GDK_LEFT_PTR);
- gdk_window_set_cursor (GTK_WIDGET (view->canvas)->window
-, cursor);
- gdk_cursor_unref (cursor);
- break;
- default:
- return FALSE;
-
- }
- }
- return TRUE; /* We handled this or we were dragging. */
-}
-
-
-
-/*
- * Local Variables: -- emacs
- * mode: C -- emacs
- * c-basic-offset: 8 -- emacs
- * tab-width: 8 -- emacs
- * indent-tabs-mode: nil -- emacs
- * End: -- emacs
- */
projects / glabels / blobdiff