+++ /dev/null
-/*
- * label-object.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 "label-object.h"
-
-#include <glib.h>
-#include <math.h>
-
-#include "marshal.h"
-
-#include "debug.h"
-
-
-/*========================================================*/
-/* Private defines. */
-/*========================================================*/
-
-#define DEFAULT_SHADOW_X_OFFSET (3.6)
-#define DEFAULT_SHADOW_Y_OFFSET (3.6)
-#define DEFAULT_SHADOW_OPACITY (0.5)
-
-
-/*========================================================*/
-/* Private types. */
-/*========================================================*/
-
-struct _glLabelObjectPrivate {
- gchar *name;
- gdouble x, y;
- gdouble w, h;
- cairo_matrix_t matrix;
-
- gdouble aspect_ratio;
-
- gboolean shadow_state;
- gdouble shadow_x;
- gdouble shadow_y;
- glColorNode *shadow_color_node;
- gdouble shadow_opacity;
-};
-
-enum {
- CHANGED,
- MOVED,
- FLIP_ROTATE,
- TOP,
- BOTTOM,
- REMOVED,
- LAST_SIGNAL
-};
-
-
-/*========================================================*/
-/* Private globals. */
-/*========================================================*/
-
-static guint signals[LAST_SIGNAL] = {0};
-
-static guint instance = 0;
-
-
-/*========================================================*/
-/* Private function prototypes. */
-/*========================================================*/
-
-static void gl_label_object_finalize (GObject *object);
-
-static void merge_changed_cb (glLabel *label,
- glLabelObject *object);
-
-static void set_size (glLabelObject *object,
- gdouble w,
- gdouble h);
-
-
-/*****************************************************************************/
-/* Boilerplate object stuff. */
-/*****************************************************************************/
-G_DEFINE_TYPE (glLabelObject, gl_label_object, G_TYPE_OBJECT);
-
-
-static void
-gl_label_object_class_init (glLabelObjectClass *class)
-{
- GObjectClass *object_class = G_OBJECT_CLASS (class);
-
- gl_debug (DEBUG_LABEL, "START");
-
- gl_label_object_parent_class = g_type_class_peek_parent (class);
-
- object_class->finalize = gl_label_object_finalize;
-
- class->set_size = set_size;
-
- signals[CHANGED] =
- g_signal_new ("changed",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glLabelObjectClass, changed),
- NULL, NULL,
- gl_marshal_VOID__VOID,
- G_TYPE_NONE,
- 0);
-
- signals[MOVED] =
- g_signal_new ("moved",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glLabelObjectClass, moved),
- NULL, NULL,
- gl_marshal_VOID__DOUBLE_DOUBLE,
- G_TYPE_NONE,
- 2, G_TYPE_DOUBLE, G_TYPE_DOUBLE);
- signals[FLIP_ROTATE] =
- g_signal_new ("flip_rotate",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glLabelObjectClass, flip_rotate),
- NULL, NULL,
- gl_marshal_VOID__VOID,
- G_TYPE_NONE,
- 0);
- signals[TOP] =
- g_signal_new ("top",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glLabelObjectClass, top),
- NULL, NULL,
- gl_marshal_VOID__VOID,
- G_TYPE_NONE,
- 0);
-
- signals[BOTTOM] =
- g_signal_new ("bottom",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glLabelObjectClass, bottom),
- NULL, NULL,
- gl_marshal_VOID__VOID,
- G_TYPE_NONE,
- 0);
- signals[REMOVED] =
- g_signal_new ("removed",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (glLabelObjectClass, removed),
- NULL, NULL,
- gl_marshal_VOID__VOID,
- G_TYPE_NONE,
- 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-static void
-gl_label_object_init (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- object->priv = g_new0 (glLabelObjectPrivate, 1);
-
- object->priv->name = g_strdup_printf ("object%d", instance++);
-
- cairo_matrix_init_identity (&object->priv->matrix);
-
- object->priv->shadow_state = FALSE;
- object->priv->shadow_x = DEFAULT_SHADOW_X_OFFSET;
- object->priv->shadow_y = DEFAULT_SHADOW_Y_OFFSET;
- object->priv->shadow_color_node = gl_color_node_new_default ();
- object->priv->shadow_opacity = DEFAULT_SHADOW_OPACITY;
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-static void
-gl_label_object_finalize (GObject *object)
-{
- glLabelObject *label_object = GL_LABEL_OBJECT (object);
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- g_free (label_object->priv->name);
- g_free (label_object->priv);
-
- G_OBJECT_CLASS (gl_label_object_parent_class)->finalize (object);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* New label object. */
-/*****************************************************************************/
-GObject *
-gl_label_object_new (glLabel *label)
-{
- glLabelObject *object;
-
- gl_debug (DEBUG_LABEL, "START");
-
- object = g_object_new (gl_label_object_get_type(), NULL);
-
- gl_label_object_set_parent (object, label);
-
- gl_debug (DEBUG_LABEL, "END");
-
- return G_OBJECT (object);
-}
-
-
-/*****************************************************************************/
-/* Duplicate object. */
-/*****************************************************************************/
-glLabelObject *
-gl_label_object_dup (glLabelObject *src_object,
- glLabel *label)
-{
- glLabelObject *dst_object;
- gdouble x, y, w, h;
- cairo_matrix_t matrix;
- gboolean shadow_state;
- gdouble shadow_x, shadow_y;
- glColorNode *shadow_color_node;
- gdouble shadow_opacity;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (src_object && GL_IS_LABEL_OBJECT (src_object), NULL);
-
- dst_object = g_object_new (G_OBJECT_TYPE(src_object), NULL);
-
- gl_label_object_set_parent (dst_object, label);
-
- gl_label_object_get_position (src_object, &x, &y);
- gl_label_object_get_size (src_object, &w, &h);
- gl_label_object_get_matrix (src_object, &matrix);
- gl_label_object_get_shadow_offset (src_object, &shadow_x, &shadow_y);
- shadow_color_node = gl_label_object_get_shadow_color (src_object);
- shadow_opacity = gl_label_object_get_shadow_opacity (src_object);
- shadow_state = gl_label_object_get_shadow_state (src_object);
-
- gl_label_object_set_position (dst_object, x, y);
- gl_label_object_set_size (dst_object, w, h);
- gl_label_object_set_matrix (dst_object, &matrix);
- gl_label_object_set_shadow_offset (dst_object, shadow_x, shadow_y);
- gl_label_object_set_shadow_color (dst_object, shadow_color_node);
- gl_label_object_set_shadow_opacity (dst_object, shadow_opacity);
- gl_label_object_set_shadow_state (dst_object, shadow_state);
-
- gl_color_node_free (&shadow_color_node);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(src_object)->copy != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(src_object)->copy (dst_object, src_object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return dst_object;
-}
-
-
-/*****************************************************************************/
-/* Emit "changed" signal (for derived objects). */
-/*****************************************************************************/
-void
-gl_label_object_emit_changed (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- g_signal_emit (G_OBJECT(object), signals[CHANGED], 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Set parent label of object. */
-/*****************************************************************************/
-void
-gl_label_object_set_parent (glLabelObject *object,
- glLabel *label)
-{
- glLabel *old_parent;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- g_return_if_fail (label && GL_IS_LABEL (label));
-
- old_parent = object->parent;
- if ( old_parent != NULL ) {
- g_signal_handlers_disconnect_by_func (old_parent,
- G_CALLBACK(merge_changed_cb),
- object);
- gl_label_remove_object( old_parent, object );
- }
- gl_label_add_object( label, object );
-
- g_signal_connect (G_OBJECT(label), "merge_changed",
- G_CALLBACK(merge_changed_cb), object);
-
- g_signal_emit (G_OBJECT(object), signals[CHANGED], 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Get parent label of object. */
-/*****************************************************************************/
-glLabel *
-gl_label_object_get_parent (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), NULL);
-
- gl_debug (DEBUG_LABEL, "END");
-
- return object->parent;
-}
-
-
-/*****************************************************************************/
-/* Set remove object from parent. */
-/*****************************************************************************/
-void
-gl_label_object_remove (glLabelObject *object)
-{
- glLabel *parent;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- parent = object->parent;
- if ( parent != NULL ) {
- g_signal_handlers_disconnect_by_func (parent,
- G_CALLBACK(merge_changed_cb),
- object);
- gl_label_remove_object (parent, object);
-
- g_signal_emit (G_OBJECT(object), signals[REMOVED], 0);
-
- g_object_unref (G_OBJECT(object));
- }
-
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Set name of object. */
-/*****************************************************************************/
-void
-gl_label_object_set_name (glLabelObject *object,
- gchar *name)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- g_free(object->priv->name);
- object->priv->name = name;
-
- g_signal_emit (G_OBJECT(object), signals[CHANGED], 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Get name of object. */
-/*****************************************************************************/
-gchar *
-gl_label_object_get_name (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), NULL);
-
- gl_debug (DEBUG_LABEL, "END");
-
- return g_strdup(object->priv->name);
-}
-
-
-/*****************************************************************************/
-/* Set position of object. */
-/*****************************************************************************/
-void
-gl_label_object_set_position (glLabelObject *object,
- gdouble x,
- gdouble y)
-{
- gdouble dx, dy;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( (x != object->priv->x) || (y != object->priv->y) ) {
-
- dx = x - object->priv->x;
- dy = y - object->priv->y;
-
- object->priv->x = x;
- object->priv->y = y;
-
- g_signal_emit (G_OBJECT(object), signals[MOVED], 0, dx, dy);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Set position of object relative to old position. */
-/*****************************************************************************/
-void
-gl_label_object_set_position_relative (glLabelObject *object,
- gdouble dx,
- gdouble dy)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( (dx != 0.0) || (dy != 0.0) ) {
-
- object->priv->x += dx;
- object->priv->y += dy;
-
- gl_debug (DEBUG_LABEL, " x = %f, y= %f",
- object->priv->x,
- object->priv->y);
-
- g_signal_emit (G_OBJECT(object), signals[MOVED], 0, dx, dy);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Get position of object. */
-/*****************************************************************************/
-void
-gl_label_object_get_position (glLabelObject *object,
- gdouble *x,
- gdouble *y)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- *x = object->priv->x;
- *y = object->priv->y;
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*---------------------------------------------------------------------------*/
-/* PRIVATE. Default set size method. */
-/*---------------------------------------------------------------------------*/
-static void
-set_size (glLabelObject *object,
- gdouble w,
- gdouble h)
-{
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( (object->priv->w != w) || (object->priv->h != h) ) {
-
- object->priv->w = w;
- object->priv->h = h;
-
- g_signal_emit (G_OBJECT(object), signals[CHANGED], 0);
- }
-}
-
-
-/*****************************************************************************/
-/* Set size of object. */
-/*****************************************************************************/
-void
-gl_label_object_set_size (glLabelObject *object,
- gdouble w,
- gdouble h)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_size != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_size (object, w, h);
-
- object->priv->aspect_ratio = h / w;
-
- }
-
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Set size of object honoring current aspect ratio. */
-/*****************************************************************************/
-void
-gl_label_object_set_size_honor_aspect (glLabelObject *object,
- gdouble w,
- gdouble h)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( h > w*object->priv->aspect_ratio ) {
-
- h = w * object->priv->aspect_ratio;
-
- } else {
-
- w = h / object->priv->aspect_ratio;
-
- }
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_size != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_size (object, w, h);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Get raw size method (don't let object content adjust size). */
-/*****************************************************************************/
-void
-gl_label_object_get_raw_size (glLabelObject *object,
- gdouble *w,
- gdouble *h)
-{
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- *w = object->priv->w;
- *h = object->priv->h;
-}
-
-
-/*****************************************************************************/
-/* Get size of object. */
-/*****************************************************************************/
-void
-gl_label_object_get_size (glLabelObject *object,
- gdouble *w,
- gdouble *h)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_size != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->get_size (object, w, h);
-
- } else {
-
- gl_label_object_get_raw_size (object, w, h);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Get extent of object. */
-/*****************************************************************************/
-void
-gl_label_object_get_extent (glLabelObject *object,
- glLabelRegion *region)
-{
- gdouble w, h;
- gdouble line_w;
- gdouble xa1, ya1, xa2, ya2, xa3, ya3, xa4, ya4;
- cairo_matrix_t matrix;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- gl_label_object_get_size (object, &w, &h);
- line_w = gl_label_object_get_line_width (object);
-
- /* setup untransformed corners of bounding box, account for line width */
- xa1 = - line_w/2;
- ya1 = - line_w/2;
- xa2 = w + line_w/2;
- ya2 = - line_w/2;
- xa3 = w + line_w/2;
- ya3 = h + line_w/2;
- xa4 = - line_w/2;
- ya4 = h + line_w/2;
-
- /* transform these points */
- gl_label_object_get_matrix (object, &matrix);
- cairo_matrix_transform_point (&matrix, &xa1, &ya1);
- cairo_matrix_transform_point (&matrix, &xa2, &ya2);
- cairo_matrix_transform_point (&matrix, &xa3, &ya3);
- cairo_matrix_transform_point (&matrix, &xa4, &ya4);
-
- /* now find the maximum extent of these points in x and y */
- region->x1 = MIN (xa1, MIN (xa2, MIN (xa3, xa4))) + object->priv->x;
- region->y1 = MIN (ya1, MIN (ya2, MIN (ya3, ya4))) + object->priv->y;
- region->x2 = MAX (xa1, MAX (xa2, MAX (xa3, xa4))) + object->priv->x;
- region->y2 = MAX (ya1, MAX (ya2, MAX (ya3, ya4))) + object->priv->y;
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Can text properties be set for this object? */
-/*****************************************************************************/
-gboolean
-gl_label_object_can_text (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), FALSE);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_font_family != NULL ) {
-
- return TRUE;
-
- } else {
-
- return FALSE;
-
- }
-
-}
-
-
-/*****************************************************************************/
-/* Set font family for all text contained in object. */
-/*****************************************************************************/
-void
-gl_label_object_set_font_family (glLabelObject *object,
- const gchar *font_family)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_font_family != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_font_family (object, font_family);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Set font size for all text contained in object. */
-/****************************************************************************/
-void
-gl_label_object_set_font_size (glLabelObject *object,
- gdouble font_size)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_font_size != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_font_size (object, font_size);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Set font weight for all text contained in object. */
-/****************************************************************************/
-void
-gl_label_object_set_font_weight (glLabelObject *object,
- PangoWeight font_weight)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_font_weight != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_font_weight (object, font_weight);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Set font italic flag for all text contained in object. */
-/****************************************************************************/
-void
-gl_label_object_set_font_italic_flag (glLabelObject *object,
- gboolean font_italic_flag)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_font_italic_flag != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_font_italic_flag (object,
- font_italic_flag);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Set text alignment for all text contained in object. */
-/****************************************************************************/
-void
-gl_label_object_set_text_alignment (glLabelObject *object,
- PangoAlignment text_alignment)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_text_alignment != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_text_alignment (object,
- text_alignment);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Set text line spacing for all text contained in object. */
-/****************************************************************************/
-void
-gl_label_object_set_text_line_spacing (glLabelObject *object,
- gdouble text_line_spacing)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_text_line_spacing != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_text_line_spacing (object, text_line_spacing);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Set text color for all text contained in object. */
-/****************************************************************************/
-void
-gl_label_object_set_text_color (glLabelObject *object,
- glColorNode *text_color_node)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_text_color != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_text_color (object, text_color_node);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*****************************************************************************/
-/* Get font family for all text contained in object. */
-/*****************************************************************************/
-gchar *
-gl_label_object_get_font_family (glLabelObject *object)
-{
- gchar *ret = NULL;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), NULL);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_font_family != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_font_family (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/****************************************************************************/
-/* Get font size for all text contained in object. */
-/****************************************************************************/
-gdouble
-gl_label_object_get_font_size (glLabelObject *object)
-{
- gdouble ret = 0.0;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), 0.0);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_font_size != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_font_size (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/****************************************************************************/
-/* Get font weight for all text contained in object. */
-/****************************************************************************/
-PangoWeight
-gl_label_object_get_font_weight (glLabelObject *object)
-{
- PangoWeight ret = PANGO_WEIGHT_NORMAL;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), PANGO_WEIGHT_NORMAL);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_font_weight != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_font_weight (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/****************************************************************************/
-/* Get font italic flag for all text contained in object. */
-/****************************************************************************/
-gboolean
-gl_label_object_get_font_italic_flag (glLabelObject *object)
-{
- gboolean ret = FALSE;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), FALSE);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_font_italic_flag != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_font_italic_flag (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/****************************************************************************/
-/* Get text alignment for all text contained in object. */
-/****************************************************************************/
-PangoAlignment
-gl_label_object_get_text_alignment (glLabelObject *object)
-{
- PangoAlignment ret = PANGO_ALIGN_LEFT;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), PANGO_ALIGN_LEFT);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_text_alignment != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_text_alignment (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/****************************************************************************/
-/* Get text line spacing for all text contained in object. */
-/****************************************************************************/
-gdouble
-gl_label_object_get_text_line_spacing (glLabelObject *object)
-{
- gdouble ret = 0.0;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), 0.0);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_text_line_spacing != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_text_line_spacing (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/****************************************************************************/
-/* Get text color for all text contained in object. */
-/****************************************************************************/
-glColorNode*
-gl_label_object_get_text_color (glLabelObject *object)
-{
- glColorNode *ret = NULL;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), 0);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_text_color != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_text_color (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/*****************************************************************************/
-/* Can fill properties be set for this object? */
-/*****************************************************************************/
-gboolean
-gl_label_object_can_fill (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), FALSE);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_fill_color != NULL ) {
-
- return TRUE;
-
- } else {
-
- return FALSE;
-
- }
-
-}
-
-
-/****************************************************************************/
-/* Set fill color for object. */
-/****************************************************************************/
-void
-gl_label_object_set_fill_color (glLabelObject *object,
- glColorNode *fill_color_node)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_fill_color != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_fill_color (object, fill_color_node);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Get fill color for object. */
-/****************************************************************************/
-glColorNode*
-gl_label_object_get_fill_color (glLabelObject *object)
-{
- glColorNode *ret = NULL;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), 0);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_fill_color != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_fill_color (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/*****************************************************************************/
-/* Can line color property be set for this object? */
-/*****************************************************************************/
-gboolean
-gl_label_object_can_line_color (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), FALSE);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_line_color != NULL ) {
-
- return TRUE;
-
- } else {
-
- return FALSE;
-
- }
-
-}
-
-
-/****************************************************************************/
-/* Set line color for object. */
-/****************************************************************************/
-void
-gl_label_object_set_line_color (glLabelObject *object,
- glColorNode *line_color_node)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_line_color != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_line_color (object, line_color_node);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Get line color for object. */
-/****************************************************************************/
-glColorNode*
-gl_label_object_get_line_color (glLabelObject *object)
-{
- glColorNode *ret = NULL;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), 0);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_line_color != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_line_color (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/*****************************************************************************/
-/* Can line width property be set for this object? */
-/*****************************************************************************/
-gboolean
-gl_label_object_can_line_width (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), FALSE);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_line_width != NULL ) {
-
- return TRUE;
-
- } else {
-
- return FALSE;
-
- }
-
-}
-
-
-/****************************************************************************/
-/* Set line width for object. */
-/****************************************************************************/
-void
-gl_label_object_set_line_width (glLabelObject *object,
- gdouble line_width)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_line_width != NULL ) {
-
- /* We have an object specific method, use it */
- GL_LABEL_OBJECT_GET_CLASS(object)->set_line_width (object, line_width);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Get line width for object. */
-/****************************************************************************/
-gdouble
-gl_label_object_get_line_width (glLabelObject *object)
-{
- gdouble ret = 0.0;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), 0.0);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_line_width != NULL ) {
-
- /* We have an object specific method, use it */
- ret = GL_LABEL_OBJECT_GET_CLASS(object)->get_line_width (object);
-
- }
-
- gl_debug (DEBUG_LABEL, "END");
-
- return ret;
-}
-
-
-/****************************************************************************/
-/* Set shadow state of object. */
-/****************************************************************************/
-void
-gl_label_object_set_shadow_state (glLabelObject *object,
- gboolean state)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if (object->priv->shadow_state != state)
- {
- object->priv->shadow_state = state;
- gl_label_object_emit_changed (object);
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Get shadow state of object. */
-/****************************************************************************/
-gboolean
-gl_label_object_get_shadow_state (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), FALSE);
-
- return object->priv->shadow_state;
-}
-
-
-/****************************************************************************/
-/* Set offset of object's shadow. */
-/****************************************************************************/
-void
-gl_label_object_set_shadow_offset (glLabelObject *object,
- gdouble x,
- gdouble y)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( (x != object->priv->shadow_x) || (y != object->priv->shadow_y) )
- {
- object->priv->shadow_x = x;
- object->priv->shadow_y = y;
-
- gl_label_object_emit_changed (object);
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Get offset of object's shadow. */
-/****************************************************************************/
-void
-gl_label_object_get_shadow_offset (glLabelObject *object,
- gdouble *x,
- gdouble *y)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- *x = object->priv->shadow_x;
- *y = object->priv->shadow_y;
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Set color of object's shadow. */
-/****************************************************************************/
-void
-gl_label_object_set_shadow_color (glLabelObject *object,
- glColorNode *color_node)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if ( !gl_color_node_equal (object->priv->shadow_color_node, color_node ))
- {
- gl_color_node_free (&(object->priv->shadow_color_node));
- object->priv->shadow_color_node = gl_color_node_dup (color_node);
- gl_label_object_emit_changed (GL_LABEL_OBJECT(object));
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Get color of object's shadow. */
-/****************************************************************************/
-glColorNode*
-gl_label_object_get_shadow_color (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), NULL);
-
- return gl_color_node_dup (object->priv->shadow_color_node);
-}
-
-
-/****************************************************************************/
-/* Set opacity of object's shadow. */
-/****************************************************************************/
-void
-gl_label_object_set_shadow_opacity (glLabelObject *object,
- gdouble alpha)
-{
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- if (object->priv->shadow_opacity != alpha)
- {
- object->priv->shadow_opacity = alpha;
- gl_label_object_emit_changed (object);
- }
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Get opacity of object's shadow. */
-/****************************************************************************/
-gdouble
-gl_label_object_get_shadow_opacity (glLabelObject *object)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), FALSE);
-
- return object->priv->shadow_opacity;
-}
-
-
-/****************************************************************************/
-/* Flip object horizontally. */
-/****************************************************************************/
-void
-gl_label_object_flip_horiz (glLabelObject *object)
-{
- cairo_matrix_t flip_matrix;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- cairo_matrix_init_scale (&flip_matrix, -1.0, 1.0);
- cairo_matrix_multiply (&object->priv->matrix, &object->priv->matrix, &flip_matrix);
-
- g_signal_emit (G_OBJECT(object), signals[FLIP_ROTATE], 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Flip object vertically. */
-/****************************************************************************/
-void
-gl_label_object_flip_vert (glLabelObject *object)
-{
- cairo_matrix_t flip_matrix;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- cairo_matrix_init_scale (&flip_matrix, 1.0, -1.0);
- cairo_matrix_multiply (&object->priv->matrix, &object->priv->matrix, &flip_matrix);
-
- g_signal_emit (G_OBJECT(object), signals[FLIP_ROTATE], 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Rotate object. */
-/****************************************************************************/
-void
-gl_label_object_rotate (glLabelObject *object,
- gdouble theta_degs)
-{
- cairo_matrix_t rotate_matrix;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- cairo_matrix_init_rotate (&rotate_matrix, theta_degs*(G_PI/180.));
- cairo_matrix_multiply (&object->priv->matrix, &object->priv->matrix, &rotate_matrix);
-
- g_signal_emit (G_OBJECT(object), signals[FLIP_ROTATE], 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Set raw affine */
-/****************************************************************************/
-void
-gl_label_object_set_matrix (glLabelObject *object,
- cairo_matrix_t *matrix)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- object->priv->matrix = *matrix;
-}
-
-
-/****************************************************************************/
-/* Get raw affine */
-/****************************************************************************/
-void
-gl_label_object_get_matrix (glLabelObject *object,
- cairo_matrix_t *matrix)
-{
- gl_debug (DEBUG_LABEL, "");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- *matrix = object->priv->matrix;
-}
-
-
-/****************************************************************************/
-/* Bring label object to front/top. */
-/****************************************************************************/
-void
-gl_label_object_raise_to_top (glLabelObject *object)
-{
- glLabel *label;
-
- gl_debug (DEBUG_LABEL, "START");
-
- label = object->parent;
-
- gl_label_raise_object_to_top (label, object);
-
- g_signal_emit (G_OBJECT(object), signals[TOP], 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/****************************************************************************/
-/* Send label object to rear/bottom. */
-/****************************************************************************/
-void
-gl_label_object_lower_to_bottom (glLabelObject *object)
-{
- glLabel *label;
-
- gl_debug (DEBUG_LABEL, "START");
-
- label = object->parent;
-
- gl_label_lower_object_to_bottom (label, object);
-
- g_signal_emit (G_OBJECT(object), signals[BOTTOM], 0);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-/*--------------------------------------------------------------------------*/
-/* PRIVATE. Label's merge data changed callback. */
-/*--------------------------------------------------------------------------*/
-static void
-merge_changed_cb (glLabel *label,
- glLabelObject *object)
-{
- gl_label_object_emit_changed (object);
-}
-
-
-/*****************************************************************************/
-/* Draw object */
-/*****************************************************************************/
-void
-gl_label_object_draw (glLabelObject *object,
- cairo_t *cr,
- gboolean screen_flag,
- glMergeRecord *record)
-
-{
- gdouble x0, y0;
- cairo_matrix_t matrix;
- gboolean shadow_state;
- gdouble shadow_x, shadow_y;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
-
- gl_label_object_get_position (object, &x0, &y0);
- gl_label_object_get_matrix (object, &matrix);
-
- cairo_save (cr);
- cairo_translate (cr, x0, y0);
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->draw_shadow != NULL ) {
-
- shadow_state = gl_label_object_get_shadow_state (object);
-
- if ( shadow_state )
- {
- gl_label_object_get_shadow_offset (object, &shadow_x, &shadow_y);
-
- cairo_save (cr);
- cairo_translate (cr, shadow_x, shadow_y);
- cairo_transform (cr, &matrix);
-
- GL_LABEL_OBJECT_GET_CLASS(object)->draw_shadow (object,
- cr,
- screen_flag,
- record);
-
- cairo_restore (cr);
- }
- }
-
- if ( GL_LABEL_OBJECT_GET_CLASS(object)->draw_object != NULL ) {
-
- cairo_save (cr);
- cairo_transform (cr, &matrix);
-
- GL_LABEL_OBJECT_GET_CLASS(object)->draw_object (object,
- cr,
- screen_flag,
- record);
-
- cairo_restore (cr);
- }
-
- cairo_restore (cr);
-
- gl_debug (DEBUG_LABEL, "END");
-}
-
-
-
-
-/*
- * 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