/*
- * (GLABELS) Label and Business Card Creation program for GNOME
+ * label-object.c
+ * Copyright (C) 2001-2009 Jim Evins <evins@snaught.com>.
*
- * label_object.c: GLabels label object base class
+ * This file is part of gLabels.
*
- * Copyright (C) 2001-2002 Jim Evins <evins@snaught.com>.
- *
- * 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-object.h"
+
#include <glib.h>
-#include <libart_lgpl/libart.h>
+#include <math.h>
-#include "label-object.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. */
/*========================================================*/
gchar *name;
gdouble x, y;
gdouble w, h;
- gdouble affine[6];
+ cairo_matrix_t matrix;
+
+ gdouble aspect_ratio;
+
+ gboolean shadow_state;
+ gdouble shadow_x;
+ gdouble shadow_y;
+ glColorNode *shadow_color_node;
+ gdouble shadow_opacity;
};
enum {
FLIP_ROTATE,
TOP,
BOTTOM,
+ REMOVED,
LAST_SIGNAL
};
+
/*========================================================*/
/* Private globals. */
/*========================================================*/
-static GObjectClass *parent_class = NULL;
-
static guint signals[LAST_SIGNAL] = {0};
static guint instance = 0;
+
/*========================================================*/
/* Private function prototypes. */
/*========================================================*/
-static void gl_label_object_class_init (glLabelObjectClass *klass);
-static void gl_label_object_instance_init (glLabelObject *object);
static void gl_label_object_finalize (GObject *object);
static void merge_changed_cb (glLabel *label,
glLabelObject *object);
-\f
+static void set_size (glLabelObject *object,
+ gdouble w,
+ gdouble h);
+
+
/*****************************************************************************/
/* Boilerplate object stuff. */
/*****************************************************************************/
-GType
-gl_label_object_get_type (void)
-{
- static GType type = 0;
-
- if (!type) {
- GTypeInfo info = {
- sizeof (glLabelObjectClass),
- NULL,
- NULL,
- (GClassInitFunc) gl_label_object_class_init,
- NULL,
- NULL,
- sizeof (glLabelObject),
- 0,
- (GInstanceInitFunc) gl_label_object_instance_init,
- };
+G_DEFINE_TYPE (glLabelObject, gl_label_object, G_TYPE_OBJECT);
- type = g_type_register_static (G_TYPE_OBJECT,
- "glLabelObject", &info, 0);
- }
-
- return type;
-}
static void
-gl_label_object_class_init (glLabelObjectClass *klass)
+gl_label_object_class_init (glLabelObjectClass *class)
{
- GObjectClass *object_class = (GObjectClass *) klass;
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
gl_debug (DEBUG_LABEL, "START");
- parent_class = g_type_class_peek_parent (klass);
+ 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),
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_instance_init (glLabelObject *object)
+gl_label_object_init (glLabelObject *object)
{
gl_debug (DEBUG_LABEL, "START");
- object->private = g_new0 (glLabelObjectPrivate, 1);
+ object->priv = g_new0 (glLabelObjectPrivate, 1);
+
+ object->priv->name = g_strdup_printf ("object%d", instance++);
- object->private->name = g_strdup_printf ("object%d", instance++);
+ cairo_matrix_init_identity (&object->priv->matrix);
- art_affine_identity (object->private->affine);
+ 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)
{
- glLabel *parent;
+ glLabelObject *label_object = GL_LABEL_OBJECT (object);
gl_debug (DEBUG_LABEL, "START");
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- parent = GL_LABEL_OBJECT(object)->parent;
- gl_label_remove_object (parent, GL_LABEL_OBJECT(object));
-
- g_free (GL_LABEL_OBJECT(object)->private->name);
- g_free (GL_LABEL_OBJECT(object)->private);
+ g_free (label_object->priv->name);
+ g_free (label_object->priv);
- G_OBJECT_CLASS (parent_class)->finalize (object);
+ G_OBJECT_CLASS (gl_label_object_parent_class)->finalize (object);
gl_debug (DEBUG_LABEL, "END");
}
+
/*****************************************************************************/
/* New label object. */
/*****************************************************************************/
return G_OBJECT (object);
}
+
/*****************************************************************************/
/* Duplicate object. */
/*****************************************************************************/
{
glLabelObject *dst_object;
gdouble x, y, w, h;
- gdouble affine[6];
+ 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_if_fail (src_object && GL_IS_LABEL_OBJECT (src_object));
+ 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_affine (src_object, affine);
+ 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_affine (dst_object, affine);
+ 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 ) {
return dst_object;
}
+
/*****************************************************************************/
/* Emit "changed" signal (for derived objects). */
/*****************************************************************************/
gl_debug (DEBUG_LABEL, "END");
}
+
/*****************************************************************************/
/* Set parent label of object. */
/*****************************************************************************/
gl_debug (DEBUG_LABEL, "END");
}
+
/*****************************************************************************/
/* Get parent label of object. */
/*****************************************************************************/
{
gl_debug (DEBUG_LABEL, "START");
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
+ 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. */
/*****************************************************************************/
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- g_free(object->private->name);
- object->private->name = name;
+ 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. */
/*****************************************************************************/
{
gl_debug (DEBUG_LABEL, "START");
- g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
+ g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), NULL);
gl_debug (DEBUG_LABEL, "END");
- return g_strdup(object->private->name);
+ return g_strdup(object->priv->name);
}
+
/*****************************************************************************/
/* Set position of object. */
/*****************************************************************************/
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- dx = x - object->private->x;
- dy = y - object->private->y;
+ if ( (x != object->priv->x) || (y != object->priv->y) ) {
+
+ dx = x - object->priv->x;
+ dy = y - object->priv->y;
- object->private->x = x;
- object->private->y = y;
+ object->priv->x = x;
+ object->priv->y = y;
- g_signal_emit (G_OBJECT(object), signals[MOVED], 0, dx, dy);
+ g_signal_emit (G_OBJECT(object), signals[MOVED], 0, dx, dy);
+
+ }
gl_debug (DEBUG_LABEL, "END");
}
+
/*****************************************************************************/
/* Set position of object relative to old position. */
/*****************************************************************************/
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- object->private->x += dx;
- object->private->y += dy;
+ if ( (dx != 0.0) || (dy != 0.0) ) {
+
+ object->priv->x += dx;
+ object->priv->y += dy;
- gl_debug (DEBUG_LABEL, " x = %f, y= %f",
- object->private->x,
- object->private->y);
+ 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);
+ g_signal_emit (G_OBJECT(object), signals[MOVED], 0, dx, dy);
+
+ }
gl_debug (DEBUG_LABEL, "END");
}
+
/*****************************************************************************/
/* Get position of object. */
/*****************************************************************************/
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- *x = object->private->x;
- *y = object->private->y;
+ *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. */
/*****************************************************************************/
/* 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 {
- object->private->w = w;
- object->private->h = h;
+ w = h / object->priv->aspect_ratio;
+
}
- g_signal_emit (G_OBJECT(object), signals[CHANGED], 0);
+ 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. */
/*****************************************************************************/
} else {
- *w = object->private->w;
- *h = object->private->h;
+ 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,
- gdouble *x1,
- gdouble *y1,
- gdouble *x2,
- gdouble *y2)
+ glLabelRegion *region)
{
- ArtPoint a1, a2, a3, a4, b1, b2, b3, b4;
- gdouble affine[6];
+ 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));
- /* setup untransformed corners of bounding box */
- a1.x = 0.0;
- a1.y = 0.0;
- a2.x = object->private->w;
- a2.y = 0.0;
- a3.x = object->private->w;
- a3.y = object->private->h;
- a4.x = 0.0;
- a4.y = object->private->h;
+ 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_applied_affine (object, affine);
- art_affine_point (&b1, &a1, affine);
- art_affine_point (&b2, &a2, affine);
- art_affine_point (&b3, &a3, affine);
- art_affine_point (&b4, &a4, affine);
+ 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 */
- *x1 = MIN (b1.x, MIN (b2.x, MIN (b3.x, b4.x))) + object->private->x;
- *y1 = MIN (b1.y, MIN (b2.y, MIN (b3.y, b4.y))) + object->private->y;
- *x2 = MAX (b1.x, MAX (b2.x, MAX (b3.x, b4.x))) + object->private->x;
- *y2 = MAX (b1.y, MAX (b2.y, MAX (b3.y, b4.y))) + object->private->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");
}
-/****************************************************************************/
-/* Flip object horizontally. */
-/****************************************************************************/
+
+/*****************************************************************************/
+/* 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_flip_horiz (glLabelObject *object)
+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));
- art_affine_flip (object->private->affine, object->private->affine, TRUE, FALSE);
+ if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_font_family != NULL ) {
- g_signal_emit (G_OBJECT(object), signals[FLIP_ROTATE], 0);
+ /* 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");
}
+
/****************************************************************************/
-/* Flip object vertically. */
+/* Set font size for all text contained in object. */
/****************************************************************************/
void
-gl_label_object_flip_vert (glLabelObject *object)
+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));
- art_affine_flip (object->private->affine, object->private->affine, FALSE, TRUE);
+ if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_font_size != NULL ) {
- g_signal_emit (G_OBJECT(object), signals[FLIP_ROTATE], 0);
+ /* 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");
}
+
/****************************************************************************/
-/* Rotate object. */
+/* Set font weight for all text contained in object. */
/****************************************************************************/
void
-gl_label_object_rotate (glLabelObject *object,
- gdouble theta_degs)
+gl_label_object_set_font_weight (glLabelObject *object,
+ PangoWeight font_weight)
{
- gdouble rotate_affine[6];
-
gl_debug (DEBUG_LABEL, "START");
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- art_affine_rotate (rotate_affine, theta_degs);
- art_affine_multiply (object->private->affine, object->private->affine, rotate_affine);
+ if ( GL_LABEL_OBJECT_GET_CLASS(object)->set_font_weight != NULL ) {
- g_signal_emit (G_OBJECT(object), signals[FLIP_ROTATE], 0);
+ /* 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 raw affine */
+/* Set font italic flag for all text contained in object. */
/****************************************************************************/
void
-gl_label_object_set_affine (glLabelObject *object,
- gdouble affine[6])
+gl_label_object_set_font_italic_flag (glLabelObject *object,
+ gboolean font_italic_flag)
{
- gl_debug (DEBUG_LABEL, "");
+ gl_debug (DEBUG_LABEL, "START");
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- object->private->affine[0] = affine[0];
- object->private->affine[1] = affine[1];
- object->private->affine[2] = affine[2];
- object->private->affine[3] = affine[3];
- object->private->affine[4] = affine[4];
- object->private->affine[5] = affine[5];
+ 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");
}
+
/****************************************************************************/
-/* Get raw affine */
+/* Set text alignment for all text contained in object. */
/****************************************************************************/
void
-gl_label_object_get_affine (glLabelObject *object,
- gdouble affine[6])
+gl_label_object_set_text_alignment (glLabelObject *object,
+ PangoAlignment text_alignment)
{
- gl_debug (DEBUG_LABEL, "");
+ gl_debug (DEBUG_LABEL, "START");
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- affine[0] = object->private->affine[0];
- affine[1] = object->private->affine[1];
- affine[2] = object->private->affine[2];
- affine[3] = object->private->affine[3];
- affine[4] = object->private->affine[4];
- affine[5] = object->private->affine[5];
+ 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");
}
+
/****************************************************************************/
-/* Get applied affine, i.e. translated to center of object and back */
+/* Set text line spacing for all text contained in object. */
/****************************************************************************/
void
-gl_label_object_get_applied_affine (glLabelObject *object,
- gdouble affine[6])
+gl_label_object_set_text_line_spacing (glLabelObject *object,
+ gdouble text_line_spacing)
{
- gdouble to_center[6], to_origin[6];
-
- gl_debug (DEBUG_LABEL, "");
+ gl_debug (DEBUG_LABEL, "START");
g_return_if_fail (object && GL_IS_LABEL_OBJECT (object));
- /* setup transformation affine */
- art_affine_translate (to_center, -object->private->w/2.0, -object->private->h/2.0);
- art_affine_multiply (affine, to_center, object->private->affine);
- art_affine_translate (to_origin, object->private->w/2.0, object->private->h/2.0);
- art_affine_multiply (affine, affine, to_origin);
+ 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");
}
+
/****************************************************************************/
-/* Bring label object to front/top. */
+/* Set text color for all text contained in object. */
/****************************************************************************/
void
-gl_label_object_raise_to_top (glLabelObject *object)
+gl_label_object_set_text_color (glLabelObject *object,
+ glColorNode *text_color_node)
{
- glLabel *label;
+ 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");
- label = object->parent;
+ g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), NULL);
- gl_label_raise_object_to_top (label, object);
+ if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_font_family != NULL ) {
- g_signal_emit (G_OBJECT(object), signals[TOP], 0);
+ /* 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;
}
+
/****************************************************************************/
-/* Send label object to rear/bottom. */
+/* Get font size for all text contained in object. */
/****************************************************************************/
-void
-gl_label_object_lower_to_bottom (glLabelObject *object)
+gdouble
+gl_label_object_get_font_size (glLabelObject *object)
{
- glLabel *label;
+ gdouble ret = 0.0;
gl_debug (DEBUG_LABEL, "START");
- label = object->parent;
+ g_return_val_if_fail (object && GL_IS_LABEL_OBJECT (object), 0.0);
- gl_label_lower_object_to_bottom (label, object);
+ if ( GL_LABEL_OBJECT_GET_CLASS(object)->get_font_size != NULL ) {
- g_signal_emit (G_OBJECT(object), signals[BOTTOM], 0);
+ /* 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;
}
-/*--------------------------------------------------------------------------*/
-/* PRIVATE. Label's merge data changed callback. */
-/*--------------------------------------------------------------------------*/
-static void
-merge_changed_cb (glLabel *label,
- glLabelObject *object)
+
+/****************************************************************************/
+/* Get font weight for all text contained in object. */
+/****************************************************************************/
+PangoWeight
+gl_label_object_get_font_weight (glLabelObject *object)
{
- gl_label_object_emit_changed (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