-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
-
/*
- * (GLABELS) Label and Business Card Creation program for GNOME
- *
- * label_barcode.c: GLabels label text object
+ * label-barcode.c
+ * Copyright (C) 2001-2009 Jim Evins <evins@snaught.com>.
*
- * Copyright (C) 2001-2007 Jim Evins <evins@snaught.com>.
+ * This file is part of gLabels.
*
- * This program is free software; you can redistribute it and/or modify
+ * 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 2 of the License, or
+ * the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with gLabels. If not, see <http://www.gnu.org/licenses/>.
*/
+#include <config.h>
+
#include "label-barcode.h"
+#include <glib.h>
#include <glib/gi18n.h>
-#include <glib/gmem.h>
-#include <glib/gstrfuncs.h>
-#include <glib/gmessages.h>
-#include <cairo.h>
#include <pango/pangocairo.h>
+#include "bc-backends.h"
#include "debug.h"
/*========================================================*/
#define FONT_SCALE (72.0/96.0)
+#define PI 3.141592654
+
+#define GL_BARCODE_FONT_FAMILY "Sans"
+
+#define HANDLE_OUTLINE_RGBA_ARGS 0.5, 0.5, 0.5, 0.75
+#define HANDLE_OUTLINE_WIDTH_PIXELS 2.0
+
+#define SELECTION_SLOP_PIXELS 4.0
+
/*========================================================*/
/* Private types. */
/*========================================================*/
struct _glLabelBarcodePrivate {
- glTextNode *text_node;
- gchar *id;
- glColorNode *color_node;
- gboolean text_flag;
- gboolean checksum_flag;
- guint format_digits;
+
+ glTextNode *text_node;
+ glLabelBarcodeStyle *style;
+ glColorNode *color_node;
+
+ /* Cached info. Only regenerate when text_node,
+ * style, or raw size changed */
+ lglBarcode *display_gbc;
+ gdouble w, h;
+
};
+
/*========================================================*/
/* Private globals. */
/*========================================================*/
+
/*========================================================*/
/* Private function prototypes. */
/*========================================================*/
static void gl_label_barcode_finalize (GObject *object);
static void copy (glLabelObject *dst_object,
- glLabelObject *src_object);
+ glLabelObject *src_object);
+
+static void update_barcode (glLabelBarcode *lbc);
+
+static void set_size (glLabelObject *object,
+ gdouble w,
+ gdouble h,
+ gboolean checkpoint);
static void get_size (glLabelObject *object,
- gdouble *w,
- gdouble *h);
+ gdouble *w,
+ gdouble *h);
static void set_line_color (glLabelObject *object,
- glColorNode *line_color);
+ glColorNode *line_color,
+ gboolean checkpoint);
static glColorNode *get_line_color (glLabelObject *object);
-static void draw_object (glLabelObject *object,
- cairo_t *cr,
- gboolean screen_flag,
- glMergeRecord *record);
+static void draw_object (glLabelObject *object,
+ cairo_t *cr,
+ gboolean screen_flag,
+ glMergeRecord *record);
+
+static gboolean object_at (glLabelObject *object,
+ cairo_t *cr,
+ gdouble x_pixels,
+ gdouble y_pixels);
+
+static void draw_handles (glLabelObject *object,
+ cairo_t *cr);
+
+static void create_alt_msg_path (cairo_t *cr,
+ gchar *text);
-\f
/*****************************************************************************/
/* Boilerplate object stuff. */
/*****************************************************************************/
-G_DEFINE_TYPE (glLabelBarcode, gl_label_barcode, GL_TYPE_LABEL_OBJECT);
+G_DEFINE_TYPE (glLabelBarcode, gl_label_barcode, GL_TYPE_LABEL_OBJECT)
+
static void
gl_label_barcode_class_init (glLabelBarcodeClass *class)
{
- GObjectClass *object_class = G_OBJECT_CLASS (class);
- glLabelObjectClass *label_object_class = GL_LABEL_OBJECT_CLASS (class);
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+ glLabelObjectClass *label_object_class = GL_LABEL_OBJECT_CLASS (class);
- gl_label_barcode_parent_class = g_type_class_peek_parent (class);
+ gl_label_barcode_parent_class = g_type_class_peek_parent (class);
- label_object_class->copy = copy;
- label_object_class->get_size = get_size;
- label_object_class->set_line_color = set_line_color;
- label_object_class->get_line_color = get_line_color;
+ label_object_class->copy = copy;
+ label_object_class->set_size = set_size;
+ label_object_class->get_size = get_size;
+ label_object_class->set_line_color = set_line_color;
+ label_object_class->get_line_color = get_line_color;
label_object_class->draw_object = draw_object;
label_object_class->draw_shadow = NULL;
+ label_object_class->object_at = object_at;
+ label_object_class->draw_handles = draw_handles;
- object_class->finalize = gl_label_barcode_finalize;
+ object_class->finalize = gl_label_barcode_finalize;
}
+
static void
gl_label_barcode_init (glLabelBarcode *lbc)
{
- lbc->priv = g_new0 (glLabelBarcodePrivate, 1);
- lbc->priv->color_node = gl_color_node_new_default ();
- lbc->priv->text_node = gl_text_node_new_from_text ("");
+ lbc->priv = g_new0 (glLabelBarcodePrivate, 1);
+ lbc->priv->text_node = gl_text_node_new_from_text ("");
}
+
static void
gl_label_barcode_finalize (GObject *object)
{
- glLabelBarcode *lbc = GL_LABEL_BARCODE (object);
+ glLabelBarcode *lbc = GL_LABEL_BARCODE (object);
- g_return_if_fail (object && GL_IS_LABEL_BARCODE (object));
+ g_return_if_fail (object && GL_IS_LABEL_BARCODE (object));
- gl_text_node_free (&lbc->priv->text_node);
- g_free (lbc->priv->id);
- gl_color_node_free (&(lbc->priv->color_node));
- g_free (lbc->priv);
+ gl_text_node_free (&lbc->priv->text_node);
+ gl_label_barcode_style_free (lbc->priv->style);
+ gl_color_node_free (&(lbc->priv->color_node));
+ lgl_barcode_free (lbc->priv->display_gbc);
+ g_free (lbc->priv);
- G_OBJECT_CLASS (gl_label_barcode_parent_class)->finalize (object);
+ G_OBJECT_CLASS (gl_label_barcode_parent_class)->finalize (object);
}
+
/*****************************************************************************/
/* NEW label "barcode" object. */
/*****************************************************************************/
GObject *
-gl_label_barcode_new (glLabel *label)
+gl_label_barcode_new (glLabel *label,
+ gboolean checkpoint)
{
- glLabelBarcode *lbc;
+ glLabelBarcode *lbc;
+ glLabelBarcodeStyle *style;
+ glColorNode *line_color_node;
+
+ lbc = g_object_new (gl_label_barcode_get_type(), NULL);
- lbc = g_object_new (gl_label_barcode_get_type(), NULL);
+ if (label != NULL)
+ {
+ if ( checkpoint )
+ {
+ gl_label_checkpoint (label, _("Create barcode object"));
+ }
- gl_label_object_set_parent (GL_LABEL_OBJECT(lbc), label);
+ /* Default barcode style and properties. */
+ style = gl_label_barcode_style_new ();
+ gl_label_barcode_style_set_backend_id (style, gl_barcode_backends_backend_name_to_id (NULL));
+ gl_label_barcode_style_set_style_id (style, gl_barcode_backends_style_name_to_id (style->backend_id, NULL));
+ style->text_flag = gl_barcode_backends_style_can_text (style->backend_id, style->id);
+ style->checksum_flag = gl_barcode_backends_style_can_csum (style->backend_id, style->id);
+ style->format_digits = gl_barcode_backends_style_get_prefered_n (style->backend_id, style->id);
+ lbc->priv->style = style;
+ update_barcode (lbc);
+
+ line_color_node = gl_color_node_new_default ();
+ line_color_node->color = gl_label_get_default_line_color(label);
+ lbc->priv->color_node = line_color_node;
+
+ gl_label_add_object (label, GL_LABEL_OBJECT (lbc));
+ gl_label_object_set_parent (GL_LABEL_OBJECT (lbc), label);
+ }
- return G_OBJECT (lbc);
+ return G_OBJECT (lbc);
}
+
/*****************************************************************************/
/* Copy object contents. */
/*****************************************************************************/
copy (glLabelObject *dst_object,
glLabelObject *src_object)
{
- glLabelBarcode *lbc = (glLabelBarcode *)src_object;
- glLabelBarcode *new_lbc = (glLabelBarcode *)dst_object;
- glTextNode *text_node;
- gchar *id;
- gboolean text_flag;
- gboolean checksum_flag;
- glColorNode *color_node;
- guint format_digits;
+ glLabelBarcode *lbc = (glLabelBarcode *)src_object;
+ glLabelBarcode *new_lbc = (glLabelBarcode *)dst_object;
+ glTextNode *text_node;
+ glLabelBarcodeStyle *style;
+ glColorNode *color_node;
- gl_debug (DEBUG_LABEL, "START");
+ gl_debug (DEBUG_LABEL, "START");
- g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
- g_return_if_fail (new_lbc && GL_IS_LABEL_BARCODE (new_lbc));
+ g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
+ g_return_if_fail (new_lbc && GL_IS_LABEL_BARCODE (new_lbc));
- text_node = gl_label_barcode_get_data (lbc);
- gl_label_barcode_get_props (lbc, &id, &text_flag, &checksum_flag, &format_digits);
- color_node = get_line_color (src_object);
+ text_node = gl_label_barcode_get_data (lbc);
+ style = gl_label_barcode_get_style (lbc);
+ color_node = get_line_color (src_object);
- gl_label_barcode_set_data (new_lbc, text_node);
- gl_label_barcode_set_props (new_lbc, id, text_flag, checksum_flag, format_digits);
- set_line_color (dst_object, color_node);
+ new_lbc->priv->text_node = text_node;
+ new_lbc->priv->style = style;
+ new_lbc->priv->color_node = color_node;
- gl_color_node_free (&color_node);
- gl_text_node_free (&text_node);
- g_free (id);
+ update_barcode (new_lbc);
- gl_debug (DEBUG_LABEL, "END");
+ gl_debug (DEBUG_LABEL, "END");
}
/* Set object params. */
/*****************************************************************************/
void
-gl_label_barcode_set_data (glLabelBarcode *lbc,
- glTextNode *text_node)
+gl_label_barcode_set_data (glLabelBarcode *lbc,
+ const glTextNode *text_node,
+ gboolean checkpoint)
{
- gl_debug (DEBUG_LABEL, "START");
+ glLabel *label;
- g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
+ gl_debug (DEBUG_LABEL, "START");
- if (!gl_text_node_equal (lbc->priv->text_node, text_node)) {
+ g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
- gl_text_node_free (&lbc->priv->text_node);
- lbc->priv->text_node = gl_text_node_dup (text_node);
+ if (!gl_text_node_equal (lbc->priv->text_node, text_node))
+ {
+ if ( checkpoint )
+ {
+ label = gl_label_object_get_parent (GL_LABEL_OBJECT (lbc));
+ gl_label_checkpoint (label, _("Barcode data"));
+ }
+
+ gl_text_node_free (&lbc->priv->text_node);
+ lbc->priv->text_node = gl_text_node_dup (text_node);
- gl_label_object_emit_changed (GL_LABEL_OBJECT(lbc));
+ update_barcode (lbc);
- }
+ gl_label_object_emit_changed (GL_LABEL_OBJECT(lbc));
+ }
- gl_debug (DEBUG_LABEL, "END");
+ gl_debug (DEBUG_LABEL, "END");
}
+
void
-gl_label_barcode_set_props (glLabelBarcode *lbc,
- gchar *id,
- gboolean text_flag,
- gboolean checksum_flag,
- guint format_digits)
+gl_label_barcode_set_style (glLabelBarcode *lbc,
+ const glLabelBarcodeStyle *style,
+ gboolean checkpoint)
{
- gl_debug (DEBUG_LABEL, "START");
+ glLabel *label;
+
+ gl_debug (DEBUG_LABEL, "START");
- g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
+ g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
- if ( ((lbc->priv->id == NULL) && (id != NULL))
- || (g_strcasecmp (lbc->priv->id, id) != 0)
- || (lbc->priv->text_flag != text_flag)
- || (lbc->priv->checksum_flag != checksum_flag)
- || (lbc->priv->format_digits != format_digits)) {
+ if ( !gl_label_barcode_style_is_equal (style, lbc->priv->style) )
+ {
+ if ( checkpoint )
+ {
+ label = gl_label_object_get_parent (GL_LABEL_OBJECT (lbc));
+ gl_label_checkpoint (label, _("Barcode property"));
+ }
- lbc->priv->id = g_strdup (id);
- lbc->priv->text_flag = text_flag;
- lbc->priv->checksum_flag = checksum_flag;
- lbc->priv->format_digits = format_digits;
+ gl_label_barcode_style_free (lbc->priv->style);
+ lbc->priv->style = gl_label_barcode_style_dup (style);
- gl_label_object_emit_changed (GL_LABEL_OBJECT(lbc));
+ update_barcode (lbc);
- }
+ gl_label_object_emit_changed (GL_LABEL_OBJECT(lbc));
+ }
- gl_debug (DEBUG_LABEL, "END");
+ gl_debug (DEBUG_LABEL, "END");
}
glTextNode *
gl_label_barcode_get_data (glLabelBarcode *lbc)
{
- g_return_val_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc), NULL);
+ g_return_val_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc), NULL);
- return gl_text_node_dup (lbc->priv->text_node);
+ return gl_text_node_dup (lbc->priv->text_node);
}
-void
-gl_label_barcode_get_props (glLabelBarcode *lbc,
- gchar **id,
- gboolean *text_flag,
- gboolean *checksum_flag,
- guint *format_digits)
+
+glLabelBarcodeStyle *
+gl_label_barcode_get_style (glLabelBarcode *lbc)
{
- g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
+ g_return_val_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc), NULL);
- *id = g_strdup (lbc->priv->id);
- *text_flag = lbc->priv->text_flag;
- *checksum_flag = lbc->priv->checksum_flag;
- *format_digits = lbc->priv->format_digits;
+ return gl_label_barcode_style_dup (lbc->priv->style);
}
+
/*---------------------------------------------------------------------------*/
-/* PRIVATE. Get object size method. */
+/* PRIVATE. Update cached lglBarcode. */
/*---------------------------------------------------------------------------*/
static void
-get_size (glLabelObject *object,
- gdouble *w,
- gdouble *h)
+update_barcode (glLabelBarcode *lbc)
{
- glLabelBarcode *lbc = (glLabelBarcode *)object;
- gchar *data;
- gdouble w_parent, h_parent;
- glBarcode *gbc;
-
- gl_debug (DEBUG_LABEL, "START");
-
- g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
-
- gl_label_object_get_raw_size (object, &w_parent, &h_parent);
-
- if (lbc->priv->text_node->field_flag) {
- data = gl_barcode_default_digits (lbc->priv->id,
- lbc->priv->format_digits);
- } else {
- data = gl_text_node_expand (lbc->priv->text_node, NULL);
- }
-
- gbc = gl_barcode_new (lbc->priv->id,
- lbc->priv->text_flag,
- lbc->priv->checksum_flag,
- w_parent,
- h_parent,
- data);
- g_free (data);
-
- if ( gbc == NULL ) {
- /* Try again with default digits. */
- data = gl_barcode_default_digits (lbc->priv->id,
- lbc->priv->format_digits);
- gbc = gl_barcode_new (lbc->priv->id,
- lbc->priv->text_flag,
- lbc->priv->checksum_flag,
- w_parent,
- h_parent,
- data);
- g_free (data);
- }
+ gdouble w_raw, h_raw;
+ gchar *data;
+
+ gl_debug (DEBUG_LABEL, "START");
- if ( gbc != NULL )
+ g_return_if_fail (lbc && GL_IS_LABEL_BARCODE (lbc));
+
+ gl_label_object_get_raw_size (GL_LABEL_OBJECT (lbc), &w_raw, &h_raw);
+
+ lgl_barcode_free (lbc->priv->display_gbc);
+
+ if (lbc->priv->text_node->field_flag)
{
- *w = gbc->width;
- *h = gbc->height;
+ data = gl_barcode_backends_style_default_digits (lbc->priv->style->backend_id,
+ lbc->priv->style->id,
+ lbc->priv->style->format_digits);
}
else
{
- /* If we still can't render, just set a default size. */
- *w = 144;
- *h = 72;
+ data = gl_text_node_expand (lbc->priv->text_node, NULL);
}
- gl_barcode_free (&gbc);
+ lbc->priv->display_gbc = gl_barcode_backends_new_barcode (lbc->priv->style->backend_id,
+ lbc->priv->style->id,
+ lbc->priv->style->text_flag,
+ lbc->priv->style->checksum_flag,
+ w_raw,
+ h_raw,
+ data);
+ g_free (data);
+
+ if ( lbc->priv->display_gbc == NULL )
+ {
+ lglBarcode *gbc;
+
+ /* Try again with default digits, but don't save -- just extract size. */
+ data = gl_barcode_backends_style_default_digits (lbc->priv->style->backend_id,
+ lbc->priv->style->id,
+ lbc->priv->style->format_digits);
+ gbc = gl_barcode_backends_new_barcode (lbc->priv->style->backend_id,
+ lbc->priv->style->id,
+ lbc->priv->style->text_flag,
+ lbc->priv->style->checksum_flag,
+ w_raw,
+ h_raw,
+ data);
+ g_free (data);
+
+ if ( gbc != NULL )
+ {
+ lbc->priv->w = gbc->width;
+ lbc->priv->h = gbc->height;
+ }
+ else
+ {
+ /* If we still can't render, just set a default size. */
+ lbc->priv->w = 144;
+ lbc->priv->h = 72;
+ }
- gl_debug (DEBUG_LABEL, "END");
+ lgl_barcode_free (gbc);
+ }
+ else
+ {
+ lbc->priv->w = lbc->priv->display_gbc->width;
+ lbc->priv->h = lbc->priv->display_gbc->height;
+ }
+
+ gl_debug (DEBUG_LABEL, "END");
}
+
+/*---------------------------------------------------------------------------*/
+/* PRIVATE. Set object size method. */
+/*---------------------------------------------------------------------------*/
+static void
+set_size (glLabelObject *object,
+ gdouble w,
+ gdouble h,
+ gboolean checkpoint)
+{
+ gl_debug (DEBUG_LABEL, "START");
+
+ g_return_if_fail (object && GL_IS_LABEL_BARCODE (object));
+
+ gl_label_object_set_raw_size (object, w, h, checkpoint);
+ update_barcode (GL_LABEL_BARCODE (object));
+
+ gl_debug (DEBUG_LABEL, "END");
+}
+
+
+/*---------------------------------------------------------------------------*/
+/* PRIVATE. Get object size method. */
+/*---------------------------------------------------------------------------*/
+static void
+get_size (glLabelObject *object,
+ gdouble *w,
+ gdouble *h)
+{
+ gl_debug (DEBUG_LABEL, "START");
+
+ g_return_if_fail (object && GL_IS_LABEL_BARCODE (object));
+
+ *w = GL_LABEL_BARCODE (object)->priv->w;
+ *h = GL_LABEL_BARCODE (object)->priv->h;
+
+ gl_debug (DEBUG_LABEL, "END");
+}
+
+
/*---------------------------------------------------------------------------*/
/* PRIVATE. Set line color method. */
/*---------------------------------------------------------------------------*/
static void
set_line_color (glLabelObject *object,
- glColorNode *line_color_node)
+ glColorNode *line_color_node,
+ gboolean checkpoint)
{
- glLabelBarcode *lbarcode = (glLabelBarcode *)object;
+ glLabelBarcode *lbarcode = (glLabelBarcode *)object;
+ glLabel *label;
- g_return_if_fail (lbarcode && GL_IS_LABEL_BARCODE (lbarcode));
+ g_return_if_fail (lbarcode && GL_IS_LABEL_BARCODE (lbarcode));
- if ( !gl_color_node_equal(lbarcode->priv->color_node, line_color_node) ) {
-
- gl_color_node_free (&(lbarcode->priv->color_node));
- lbarcode->priv->color_node = gl_color_node_dup (line_color_node);
- gl_label_object_emit_changed (GL_LABEL_OBJECT(lbarcode));
- }
+ if ( !gl_color_node_equal(lbarcode->priv->color_node, line_color_node) )
+ {
+ if ( checkpoint )
+ {
+ label = gl_label_object_get_parent (GL_LABEL_OBJECT (lbarcode));
+ gl_label_checkpoint (label, _("Barcode data"));
+ }
+
+ gl_color_node_free (&(lbarcode->priv->color_node));
+ lbarcode->priv->color_node = gl_color_node_dup (line_color_node);
+ gl_label_object_emit_changed (GL_LABEL_OBJECT(lbarcode));
+ }
}
+
/*---------------------------------------------------------------------------*/
/* PRIVATE. Get line color method. */
/*---------------------------------------------------------------------------*/
static glColorNode*
get_line_color (glLabelObject *object)
{
- glLabelBarcode *lbarcode = (glLabelBarcode *)object;
+ glLabelBarcode *lbarcode = (glLabelBarcode *)object;
- g_return_val_if_fail (lbarcode && GL_IS_LABEL_BARCODE (lbarcode), NULL);
+ g_return_val_if_fail (lbarcode && GL_IS_LABEL_BARCODE (lbarcode), NULL);
- return gl_color_node_dup (lbarcode->priv->color_node);
+ return gl_color_node_dup (lbarcode->priv->color_node);
}
+
/*****************************************************************************/
/* Draw object method. */
/*****************************************************************************/
gboolean screen_flag,
glMergeRecord *record)
{
- gdouble x0, y0;
- cairo_matrix_t matrix;
- glBarcode *gbc;
- glBarcodeLine *line;
- glBarcodeChar *bchar;
- GList *li;
- gdouble y_offset;
- PangoLayout *layout;
- PangoFontDescription *desc;
- gchar *text, *cstring;
- glTextNode *text_node;
- gchar *id;
- gboolean text_flag;
- gboolean checksum_flag;
- guint color;
- glColorNode *color_node;
- guint format_digits;
- gdouble w, h;
-
- gl_debug (DEBUG_LABEL, "START");
+ glLabelBarcode *lbc = (glLabelBarcode *)object;
+ gdouble x0, y0;
+ cairo_matrix_t matrix;
+ lglBarcode *gbc;
+ gchar *text;
+ glTextNode *text_node;
+ glLabelBarcodeStyle *style;
+ guint color;
+ glColorNode *color_node;
+ gdouble w, h;
+
+ gl_debug (DEBUG_LABEL, "START");
gl_label_object_get_position (object, &x0, &y0);
gl_label_object_get_matrix (object, &matrix);
- text_node = gl_label_barcode_get_data (GL_LABEL_BARCODE (object));
- gl_label_barcode_get_props (GL_LABEL_BARCODE (object),
- &id, &text_flag, &checksum_flag, &format_digits);
-
- color_node = gl_label_object_get_line_color (object);
- color = gl_color_node_expand (color_node, record);
+ text_node = gl_label_barcode_get_data (GL_LABEL_BARCODE (object));
+ style = gl_label_barcode_get_style (GL_LABEL_BARCODE (object));
+
+ color_node = gl_label_object_get_line_color (object);
+ color = gl_color_node_expand (color_node, record);
if (color_node->field_flag && screen_flag)
{
color = GL_COLOR_MERGE_DEFAULT;
}
- gl_color_node_free (&color_node);
-
- gl_label_object_get_size (object, &w, &h);
- text_node = gl_label_barcode_get_data(GL_LABEL_BARCODE(object));
- text = gl_text_node_expand (text_node, record);
- if (text_node->field_flag && screen_flag) {
- text = gl_barcode_default_digits (id, format_digits);
- }
+ cairo_set_source_rgba (cr, GL_COLOR_RGBA_ARGS (color));
+
+ if (text_node->field_flag && !screen_flag) {
- gbc = gl_barcode_new (id, text_flag, checksum_flag, w, h, text);
+ gl_label_object_get_raw_size (object, &w, &h);
+
+ text = gl_text_node_expand (text_node, record);
+ gbc = gl_barcode_backends_new_barcode (style->backend_id, style->id, style->text_flag, style->checksum_flag, w, h, text);
+ g_free (text);
+
+ if ( gbc != NULL )
+ {
+ lgl_barcode_render_to_cairo (gbc, cr);
+ lgl_barcode_free (gbc);
+ }
+
+ }
+ else
+ {
+
+ if (lbc->priv->display_gbc == NULL)
+ {
+ create_alt_msg_path (cr, text_node->data);
+ cairo_fill (cr);
+ }
+ else
+ {
+ lgl_barcode_render_to_cairo (lbc->priv->display_gbc, cr);
+ }
+
+ }
+
+ gl_text_node_free (&text_node);
+ gl_label_barcode_style_free (style);
+ gl_color_node_free (&color_node);
+
+ gl_debug (DEBUG_LABEL, "END");
+}
- cairo_set_source_rgba (cr, GL_COLOR_RGBA_ARGS (color));
- if (gbc == NULL) {
+/*****************************************************************************/
+/* Is object at coordinates? */
+/*****************************************************************************/
+static gboolean
+object_at (glLabelObject *object,
+ cairo_t *cr,
+ gdouble x,
+ gdouble y)
+{
+ glLabelBarcode *lbc = (glLabelBarcode *)object;
+ gdouble w, h;
+ glTextNode *text_node;
+ gdouble scale_x, scale_y;
+
+ gl_label_object_get_size (object, &w, &h);
- layout = pango_cairo_create_layout (cr);
+ if ( (x >= 0) && (x <= w) && (y >= 0) && (y <= h) )
+ {
- desc = pango_font_description_new ();
- pango_font_description_set_family (desc, GL_BARCODE_FONT_FAMILY);
- pango_font_description_set_size (desc, 12 * PANGO_SCALE * FONT_SCALE);
- pango_layout_set_font_description (layout, desc);
- pango_font_description_free (desc);
+ text_node = gl_label_barcode_get_data(GL_LABEL_BARCODE(object));
- if (text == NULL || *text == '\0')
+ if ( lbc->priv->display_gbc == NULL )
{
- pango_layout_set_text (layout, _("Barcode data empty"), -1);
+ create_alt_msg_path (cr, text_node->data);
}
else
{
- pango_layout_set_text (layout, _("Invalid barcode data"), -1);
+ lgl_barcode_render_to_cairo_path (lbc->priv->display_gbc, cr);
+ }
+
+ if (cairo_in_fill (cr, x, y))
+ {
+ return TRUE;
}
- cairo_move_to (cr, 0, 0);
- pango_cairo_show_layout (cr, layout);
- g_object_unref (layout);
+ scale_x = 1.0;
+ scale_y = 1.0;
+ cairo_device_to_user_distance (cr, &scale_x, &scale_y);
+
+ cairo_set_line_width (cr, 2*SELECTION_SLOP_PIXELS*scale_x);
+
+ if (cairo_in_stroke (cr, x, y))
+ {
+ return TRUE;
+ }
+
+
+ if (gl_label_object_is_selected (object))
+ {
+ cairo_new_path (cr);
+ cairo_rectangle (cr, 0, 0, w, h);
+
+ scale_x = 1.0;
+ scale_y = 1.0;
+ cairo_device_to_user_distance (cr, &scale_x, &scale_y);
+
+ cairo_set_line_width (cr, (HANDLE_OUTLINE_WIDTH_PIXELS + 2*SELECTION_SLOP_PIXELS)*scale_x);
+
+ if (cairo_in_stroke (cr, x, y))
+ {
+ return TRUE;
+ }
+ }
+
+ }
+
+ return FALSE;
+}
+
+
+/*****************************************************************************/
+/* Draw barcode style handles. */
+/*****************************************************************************/
+static void
+draw_handles (glLabelObject *object,
+ cairo_t *cr)
+{
+ gdouble w, h;
+ gdouble scale_x, scale_y;
+ gdouble dashes[2] = { 2, 2 };
+
+ gl_label_object_get_size (GL_LABEL_OBJECT(object), &w, &h);
+
+ cairo_save (cr);
- } else {
+ cairo_rectangle (cr, 0, 0, w, h);
- for (li = gbc->lines; li != NULL; li = li->next) {
- line = (glBarcodeLine *) li->data;
+ scale_x = 1.0;
+ scale_y = 1.0;
+ cairo_device_to_user_distance (cr, &scale_x, &scale_y);
+ cairo_scale (cr, scale_x, scale_y);
- cairo_move_to (cr, line->x, line->y);
- cairo_line_to (cr, line->x, line->y + line->length);
- cairo_set_line_width (cr, line->width);
- cairo_stroke (cr);
- }
+ cairo_set_dash (cr, dashes, 2, 0);
+ cairo_set_line_width (cr, HANDLE_OUTLINE_WIDTH_PIXELS);
+ cairo_set_source_rgba (cr, HANDLE_OUTLINE_RGBA_ARGS);
+ cairo_stroke (cr);
- for (li = gbc->chars; li != NULL; li = li->next) {
- bchar = (glBarcodeChar *) li->data;
+ cairo_restore (cr);
- layout = pango_cairo_create_layout (cr);
+ gl_label_object_draw_handles_box (object, cr);
+}
- desc = pango_font_description_new ();
- pango_font_description_set_family (desc, GL_BARCODE_FONT_FAMILY);
- pango_font_description_set_size (desc, bchar->fsize * PANGO_SCALE * FONT_SCALE);
- pango_layout_set_font_description (layout, desc);
- pango_font_description_free (desc);
- cstring = g_strdup_printf ("%c", bchar->c);
- pango_layout_set_text (layout, cstring, -1);
- g_free (cstring);
+/*****************************************************************************/
+/* Create a cairo path with apropos message. */
+/*****************************************************************************/
+static void
+create_alt_msg_path (cairo_t *cr,
+ gchar *text)
+{
+ PangoLayout *layout;
+ PangoFontDescription *desc;
- y_offset = 0.2 * bchar->fsize;
+ layout = pango_cairo_create_layout (cr);
- cairo_move_to (cr, bchar->x, bchar->y-y_offset);
- pango_cairo_show_layout (cr, layout);
+ desc = pango_font_description_new ();
+ pango_font_description_set_family (desc, GL_BARCODE_FONT_FAMILY);
+ pango_font_description_set_size (desc, 12 * PANGO_SCALE * FONT_SCALE);
+ pango_layout_set_font_description (layout, desc);
+ pango_font_description_free (desc);
- g_object_unref (layout);
+ if (text == NULL || *text == '\0')
+ {
+ pango_layout_set_text (layout, _("Barcode data empty"), -1);
+ }
+ else
+ {
+ pango_layout_set_text (layout, _("Invalid barcode data"), -1);
+ }
- }
+ cairo_move_to (cr, 0, 0);
+ pango_cairo_layout_path (cr, layout);
- gl_barcode_free (&gbc);
+ g_object_unref (layout);
+}
- }
- g_free (text);
- gl_text_node_free (&text_node);
- g_free (id);
+/*****************************************************************************/
+/* Barcode style utilities. */
+/*****************************************************************************/
+glLabelBarcodeStyle *
+gl_label_barcode_style_new (void)
+{
+ return g_new0 (glLabelBarcodeStyle, 1);
+}
+
+
+glLabelBarcodeStyle *
+gl_label_barcode_style_dup (const glLabelBarcodeStyle *style)
+{
+ glLabelBarcodeStyle *style2;
+
+ style2 = gl_label_barcode_style_new ();
- gl_debug (DEBUG_LABEL, "END");
+ /* Shallow copy first. */
+ *style2 = *style;
+
+ /* Now go deep. */
+ style2->backend_id = g_strdup (style->backend_id);
+ style2->id = g_strdup (style->id);
+
+ return style2;
}
+
+void
+gl_label_barcode_style_free (glLabelBarcodeStyle *style)
+{
+ if ( style )
+ {
+ g_free (style->backend_id);
+ g_free (style->id);
+
+ g_free (style);
+ }
+}
+
+
+gboolean
+gl_label_barcode_style_is_equal (const glLabelBarcodeStyle *style1,
+ const glLabelBarcodeStyle *style2)
+{
+
+ /* First take care of the case of either or both being NULL. */
+ if ( style1 == NULL )
+ {
+ return ( style2 == NULL );
+ }
+ else
+ {
+ if ( style2 == NULL )
+ {
+ return FALSE;
+ }
+ }
+
+ /* Compare field by field, bail on first difference. */
+ if ( style1->text_flag != style2->text_flag )
+ {
+ return FALSE;
+ }
+ if ( style1->checksum_flag != style2->checksum_flag )
+ {
+ return FALSE;
+ }
+ if ( style1->format_digits != style2->format_digits )
+ {
+ return FALSE;
+ }
+ if ( style1->backend_id && style2->backend_id )
+ {
+ if ( strcmp (style1->backend_id, style2->backend_id) != 0 )
+ {
+ return FALSE;
+ }
+ }
+ else
+ {
+ if ( style1->backend_id != style2->backend_id )
+ {
+ return FALSE;
+ }
+ }
+ if ( style1->id && style2->id )
+ {
+ if ( strcmp (style1->id, style2->id) != 0 )
+ {
+ return FALSE;
+ }
+ }
+ else
+ {
+ if ( style1->id != style2->id )
+ {
+ return FALSE;
+ }
+ }
+
+ /* Passed all tests. */
+ return TRUE;
+}
+
+
+void
+gl_label_barcode_style_set_backend_id (glLabelBarcodeStyle *style,
+ const gchar *backend_id)
+{
+ style->backend_id = g_strdup (backend_id);
+}
+
+
+void
+gl_label_barcode_style_set_style_id (glLabelBarcodeStyle *style,
+ const gchar *id)
+{
+ style->id = g_strdup (id);
+}
+
+
+
+
+
+/*
+ * 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