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-rw-r--r--libgnomecanvas/gnome-canvas-shape.c582
1 files changed, 0 insertions, 582 deletions
diff --git a/libgnomecanvas/gnome-canvas-shape.c b/libgnomecanvas/gnome-canvas-shape.c
deleted file mode 100644
index 8d5072facd..0000000000
--- a/libgnomecanvas/gnome-canvas-shape.c
+++ /dev/null
@@ -1,582 +0,0 @@
-/* Generic bezier shape item for GnomeCanvasWidget. Most code taken
- * from gnome-canvas-bpath but made into a shape item.
- *
- * GnomeCanvas is basically a port of the Tk toolkit's most excellent
- * canvas widget. Tk is copyrighted by the Regents of the University
- * of California, Sun Microsystems, and other parties.
- *
- * Copyright (C) 1998,1999 The Free Software Foundation
- *
- * Authors: Federico Mena <federico@nuclecu.unam.mx>
- * Raph Levien <raph@acm.org>
- * Lauris Kaplinski <lauris@ximian.com>
- * Miguel de Icaza <miguel@kernel.org>
- * Cody Russell <bratsche@gnome.org>
- * Rusty Conover <rconover@bangtail.net>
- */
-
-/* These includes are set up for standalone compile. If/when this codebase
- is integrated into libgnomeui, the includes will need to change. */
-
-#include <math.h>
-#include <string.h>
-
-#include <gtk/gtk.h>
-#include <cairo-gobject.h>
-#include "gnome-canvas.h"
-#include "gnome-canvas-util.h"
-
-#include "gnome-canvas-shape.h"
-#include "gnome-canvas-shape-private.h"
-
-enum {
- PROP_0,
- PROP_FILL_COLOR,
- PROP_FILL_COLOR_GDK,
- PROP_FILL_COLOR_RGBA,
- PROP_OUTLINE_COLOR,
- PROP_OUTLINE_COLOR_GDK,
- PROP_OUTLINE_COLOR_RGBA,
- PROP_LINE_WIDTH,
- PROP_CAP_STYLE,
- PROP_JOIN_STYLE,
- PROP_WIND,
- PROP_MITERLIMIT,
- PROP_DASH
-};
-
-static void gnome_canvas_shape_dispose (GnomeCanvasItem *object);
-static void gnome_canvas_shape_set_property (GObject *object,
- guint param_id,
- const GValue *value,
- GParamSpec *pspec);
-static void gnome_canvas_shape_get_property (GObject *object,
- guint param_id,
- GValue *value,
- GParamSpec *pspec);
-
-static void gnome_canvas_shape_update (GnomeCanvasItem *item, const cairo_matrix_t *i2c, gint flags);
-static void gnome_canvas_shape_draw (GnomeCanvasItem *item, GdkDrawable *drawable,
- gint x, gint y, gint width, gint height);
-static GnomeCanvasItem *gnome_canvas_shape_point (GnomeCanvasItem *item, gdouble x, gdouble y,
- gint cx, gint cy);
-static void gnome_canvas_shape_bounds (GnomeCanvasItem *item,
- gdouble *x1, gdouble *y1, gdouble *x2, gdouble *y2);
-
-G_DEFINE_TYPE (GnomeCanvasShape, gnome_canvas_shape, GNOME_TYPE_CANVAS_ITEM)
-
-static void
-gnome_canvas_shape_class_init (GnomeCanvasShapeClass *class)
-{
- GObjectClass *gobject_class;
- GnomeCanvasItemClass *item_class;
-
- gobject_class = (GObjectClass *) class;
- item_class = (GnomeCanvasItemClass *) class;
-
- gobject_class->set_property = gnome_canvas_shape_set_property;
- gobject_class->get_property = gnome_canvas_shape_get_property;
-
- g_object_class_install_property (gobject_class,
- PROP_FILL_COLOR,
- g_param_spec_string ("fill_color", NULL, NULL,
- NULL,
- (G_PARAM_WRITABLE)));
- g_object_class_install_property (gobject_class,
- PROP_FILL_COLOR_GDK,
- g_param_spec_boxed ("fill_color_gdk", NULL, NULL,
- GDK_TYPE_COLOR,
- G_PARAM_WRITABLE));
- g_object_class_install_property (gobject_class,
- PROP_FILL_COLOR_RGBA,
- g_param_spec_uint ("fill_rgba", NULL, NULL,
- 0, G_MAXUINT, 0,
- (G_PARAM_READABLE | G_PARAM_WRITABLE)));
- g_object_class_install_property (gobject_class,
- PROP_OUTLINE_COLOR,
- g_param_spec_string ("outline_color", NULL, NULL,
- NULL,
- (G_PARAM_WRITABLE)));
- g_object_class_install_property (gobject_class,
- PROP_OUTLINE_COLOR_GDK,
- g_param_spec_boxed ("outline_color_gdk", NULL, NULL,
- GDK_TYPE_COLOR,
- G_PARAM_WRITABLE));
- g_object_class_install_property (gobject_class,
- PROP_OUTLINE_COLOR_RGBA,
- g_param_spec_uint ("outline_rgba", NULL, NULL,
- 0, G_MAXUINT, 0,
- (G_PARAM_READABLE | G_PARAM_WRITABLE)));
- g_object_class_install_property (gobject_class,
- PROP_LINE_WIDTH,
- g_param_spec_double ("line_width", NULL, NULL,
- 0.0, G_MAXDOUBLE, 1.0,
- (G_PARAM_READABLE | G_PARAM_WRITABLE)));
- g_object_class_install_property (gobject_class,
- PROP_CAP_STYLE,
- g_param_spec_enum ("cap_style", NULL, NULL,
- CAIRO_GOBJECT_TYPE_LINE_CAP,
- CAIRO_LINE_CAP_BUTT,
- (G_PARAM_READABLE | G_PARAM_WRITABLE)));
- g_object_class_install_property (gobject_class,
- PROP_JOIN_STYLE,
- g_param_spec_enum ("join_style", NULL, NULL,
- CAIRO_GOBJECT_TYPE_LINE_JOIN,
- CAIRO_LINE_JOIN_MITER,
- (G_PARAM_READABLE | G_PARAM_WRITABLE)));
- g_object_class_install_property (gobject_class,
- PROP_WIND,
- g_param_spec_enum ("wind", NULL, NULL,
- CAIRO_GOBJECT_TYPE_FILL_RULE,
- CAIRO_FILL_RULE_EVEN_ODD,
- (G_PARAM_READABLE | G_PARAM_WRITABLE)));
- g_object_class_install_property (gobject_class,
- PROP_MITERLIMIT,
- g_param_spec_double ("miterlimit", NULL, NULL,
- 0.0, G_MAXDOUBLE, 10.43,
- (G_PARAM_READABLE | G_PARAM_WRITABLE)));
-#if 0
- /* XXX: Find a good way to pass dash properties in a property */
- g_object_class_install_property (gobject_class,
- PROP_DASH,
- g_param_spec_pointer ("dash", NULL, NULL,
- (G_PARAM_READABLE | G_PARAM_WRITABLE)));
-#endif
-
- item_class->dispose = gnome_canvas_shape_dispose;
- item_class->update = gnome_canvas_shape_update;
- item_class->draw = gnome_canvas_shape_draw;
- item_class->point = gnome_canvas_shape_point;
- item_class->bounds = gnome_canvas_shape_bounds;
-
- g_type_class_add_private (class, sizeof (GnomeCanvasShapePriv));
-}
-
-static void
-gnome_canvas_shape_init (GnomeCanvasShape *shape)
-{
- shape->priv = G_TYPE_INSTANCE_GET_PRIVATE (shape,
- GNOME_TYPE_CANVAS_SHAPE,
- GnomeCanvasShapePriv);
-
- shape->priv->path = NULL;
-
- shape->priv->scale = 1.0;
-
- shape->priv->fill_set = FALSE;
- shape->priv->outline_set = FALSE;
-
- shape->priv->line_width = 1.0;
-
- shape->priv->fill_rgba = 0x0000003f;
- shape->priv->outline_rgba = 0x0000007f;
-
- shape->priv->cap = CAIRO_LINE_CAP_BUTT;
- shape->priv->join = CAIRO_LINE_JOIN_MITER;
- shape->priv->wind = CAIRO_FILL_RULE_EVEN_ODD;
- shape->priv->miterlimit = 10.43; /* X11 default */
-
- shape->priv->n_dash = 0;
- shape->priv->dash = NULL;
-}
-
-static void
-gnome_canvas_shape_dispose (GnomeCanvasItem *object)
-{
- GnomeCanvasShape *shape;
-
- g_return_if_fail (GNOME_IS_CANVAS_SHAPE (object));
-
- shape = GNOME_CANVAS_SHAPE (object);
-
- if (shape->priv->path != NULL) {
- cairo_path_destroy (shape->priv->path);
- shape->priv->path = NULL;
- }
-
- g_free (shape->priv->dash);
- shape->priv->dash = NULL;
-
- if (GNOME_CANVAS_ITEM_CLASS (gnome_canvas_shape_parent_class)->dispose)
- GNOME_CANVAS_ITEM_CLASS (gnome_canvas_shape_parent_class)->dispose (object);
-}
-
-/**
- * gnome_canvas_shape_set_path:
- * @shape: a GnomeCanvasShape
- * @path: a cairo path from a cairo_copy_path() call
- *
- * This function sets the the path used by the GnomeCanvasShape.
- * Notice that it does not request updates, as it is meant to be used
- * from item implementations, from inside update queue.
- */
-void
-gnome_canvas_shape_set_path (GnomeCanvasShape *shape, cairo_path_t *path)
-{
- GnomeCanvasShapePriv *priv;
-
- g_return_if_fail (shape != NULL);
- g_return_if_fail (GNOME_IS_CANVAS_SHAPE (shape));
-
- priv = shape->priv;
-
- if (priv->path) {
- cairo_path_destroy (priv->path);
- priv->path = NULL;
- }
-
- priv->path = path;
-}
-
-static guint32
-get_rgba_from_color (GdkColor * color)
-{
- return ((color->red & 0xff00) << 16) | ((color->green & 0xff00) << 8) | (color->blue & 0xff00) | 0xff;
-}
-
-static void
-gnome_canvas_shape_set_property (GObject *object,
- guint param_id,
- const GValue *value,
- GParamSpec *pspec)
-{
- GnomeCanvasItem *item;
- GnomeCanvasShape *shape;
- GnomeCanvasShapePriv *priv;
- GdkColor color;
- GdkColor *colorptr;
- const gchar *color_string;
-
- item = GNOME_CANVAS_ITEM (object);
- shape = GNOME_CANVAS_SHAPE (object);
- priv = shape->priv;
-
- switch (param_id) {
- case PROP_FILL_COLOR:
- color_string = g_value_get_string (value);
- if (color_string != NULL) {
- if (gdk_color_parse (color_string, &color)) {
- g_warning (
- "Failed to parse color '%s'",
- color_string);
- break;
- }
- priv->fill_set = TRUE;
- priv->fill_rgba = get_rgba_from_color (&color);
- } else if (priv->fill_set)
- priv->fill_set = FALSE;
- else
- break;
-
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_FILL_COLOR_GDK:
- colorptr = g_value_get_boxed (value);
- if (colorptr != NULL) {
- priv->fill_set = TRUE;
- priv->fill_rgba = get_rgba_from_color (colorptr);
- } else if (priv->fill_set)
- priv->fill_set = FALSE;
- else
- break;
-
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_FILL_COLOR_RGBA:
- priv->fill_set = TRUE;
- priv->fill_rgba = g_value_get_uint (value);
-
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_OUTLINE_COLOR:
- color_string = g_value_get_string (value);
- if (color_string != NULL) {
- if (!gdk_color_parse (color_string, &color)) {
- g_warning (
- "Failed to parse color '%s'",
- color_string);
- break;
- }
- priv->outline_set = TRUE;
- priv->outline_rgba = get_rgba_from_color (&color);
- } else if (priv->outline_set)
- priv->outline_set = FALSE;
- else
- break;
-
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_OUTLINE_COLOR_GDK:
- colorptr = g_value_get_boxed (value);
- if (colorptr != NULL) {
- priv->outline_set = TRUE;
- priv->outline_rgba = get_rgba_from_color (colorptr);
- } else if (priv->outline_set)
- priv->outline_set = FALSE;
- else
- break;
-
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_OUTLINE_COLOR_RGBA:
- priv->outline_set = TRUE;
- priv->outline_rgba = g_value_get_uint (value);
-
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_LINE_WIDTH:
- priv->line_width = g_value_get_double (value);
-
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_WIND:
- priv->wind = g_value_get_enum (value);
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_CAP_STYLE:
- priv->cap = g_value_get_enum (value);
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_JOIN_STYLE:
- priv->join = g_value_get_enum (value);
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_MITERLIMIT:
- priv->miterlimit = g_value_get_double (value);
- gnome_canvas_item_request_update (item);
- break;
-
- case PROP_DASH:
- /* XXX */
- g_assert_not_reached ();
- break;
-
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
- break;
- }
-}
-
-/**
- * gnome_canvas_shape_get_path:
- * @shape: a GnomeCanvasShape
- *
- * This function returns the #cairo_path_t that the shape currently
- * uses. If there is not a #GnomeCanvasPathDef set for the shape
- * it returns NULL.
- *
- * Returns: a #cairo_path_t or NULL if none is set for the shape.
- */
-const cairo_path_t *
-gnome_canvas_shape_get_path (GnomeCanvasShape *shape)
-{
- g_return_val_if_fail (shape != NULL, NULL);
- g_return_val_if_fail (GNOME_IS_CANVAS_SHAPE (shape), NULL);
-
- return shape->priv->path;
-}
-
-static void
-gnome_canvas_shape_get_property (GObject *object,
- guint param_id,
- GValue *value,
- GParamSpec *pspec)
-{
- GnomeCanvasShape *shape = GNOME_CANVAS_SHAPE (object);
- GnomeCanvasShapePriv *priv = shape->priv;
-
- switch (param_id) {
-
- case PROP_FILL_COLOR_RGBA:
- g_value_set_uint (value, priv->fill_rgba);
- break;
-
- case PROP_OUTLINE_COLOR_RGBA:
- g_value_set_uint (value, priv->outline_rgba);
- break;
-
- case PROP_WIND:
- g_value_set_uint (value, priv->wind);
- break;
-
- case PROP_CAP_STYLE:
- g_value_set_enum (value, priv->cap);
- break;
-
- case PROP_JOIN_STYLE:
- g_value_set_enum (value, priv->join);
- break;
-
- case PROP_LINE_WIDTH:
- g_value_set_double (value, priv->line_width);
- break;
-
- case PROP_MITERLIMIT:
- g_value_set_double (value, priv->miterlimit);
- break;
-
- case PROP_DASH:
- /* XXX */
- g_assert_not_reached ();
- break;
-
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
- break;
- }
-}
-
-static gboolean
-gnome_canvas_shape_setup_for_fill (GnomeCanvasShape *shape, cairo_t *cr)
-{
- GnomeCanvasShapePriv *priv = shape->priv;
-
- if (!priv->fill_set)
- return FALSE;
-
- cairo_set_source_rgba (cr,
- ((priv->fill_rgba >> 24) & 0xff) / 255.0,
- ((priv->fill_rgba >> 16) & 0xff) / 255.0,
- ((priv->fill_rgba >> 8) & 0xff) / 255.0,
- ( priv->fill_rgba & 0xff) / 255.0);
- cairo_set_fill_rule (cr, priv->wind);
-
- return TRUE;
-}
-
-static gboolean
-gnome_canvas_shape_setup_for_stroke (GnomeCanvasShape *shape, cairo_t *cr)
-{
- GnomeCanvasShapePriv *priv = shape->priv;
-
- if (!priv->outline_set)
- return FALSE;
-
- cairo_set_source_rgba (cr,
- ((priv->outline_rgba >> 24) & 0xff) / 255.0,
- ((priv->outline_rgba >> 16) & 0xff) / 255.0,
- ((priv->outline_rgba >> 8) & 0xff) / 255.0,
- ( priv->outline_rgba & 0xff) / 255.0);
- cairo_set_line_width (cr, priv->line_width);
- cairo_set_line_cap (cr, priv->cap);
- cairo_set_line_join (cr, priv->join);
- cairo_set_miter_limit (cr, priv->miterlimit);
- cairo_set_dash (cr, priv->dash, priv->n_dash, priv->dash_offset);
-
- return TRUE;
-}
-
-static void
-gnome_canvas_shape_draw (GnomeCanvasItem *item,
- GdkDrawable *drawable,
- gint x,
- gint y,
- gint width,
- gint height)
-{
- GnomeCanvasShape * shape;
- cairo_matrix_t matrix;
- cairo_t *cr;
-
- shape = GNOME_CANVAS_SHAPE (item);
- cr = gdk_cairo_create (drawable);
- gnome_canvas_item_i2c_matrix (item, &matrix);
- cairo_transform (cr, &matrix);
- cairo_append_path (cr, shape->priv->path);
-
- if (gnome_canvas_shape_setup_for_fill (shape, cr))
- cairo_fill_preserve (cr);
-
- if (gnome_canvas_shape_setup_for_stroke (shape, cr))
- cairo_stroke_preserve (cr);
-
- cairo_destroy (cr);
-}
-
-static void
-gnome_canvas_shape_bounds (GnomeCanvasItem *item, gdouble *x1, gdouble *y1, gdouble *x2, gdouble *y2)
-{
- GnomeCanvasShape * shape;
- GnomeCanvasShapePriv * priv;
- cairo_t *cr;
-
- shape = GNOME_CANVAS_SHAPE (item);
- priv = shape->priv;
-
- cr = gnome_canvas_cairo_create_scratch ();
- cairo_append_path (cr, shape->priv->path);
-
- if (gnome_canvas_shape_setup_for_stroke (shape, cr))
- cairo_stroke_extents (cr, x1, y1, x2, y2);
- else if (gnome_canvas_shape_setup_for_fill (shape, cr))
- cairo_fill_extents (cr, x1, y1, x2, y2);
- else {
- *x1 = *x2 = *y1 = *y2 = 0;
- }
-
- cairo_destroy (cr);
-}
-
-static void
-gnome_canvas_shape_update (GnomeCanvasItem *item, const cairo_matrix_t *i2c, gint flags)
-{
- GnomeCanvasShape * shape;
- GnomeCanvasShapePriv * priv;
- double x1, x2, y1, y2;
- cairo_matrix_t matrix;
-
- shape = GNOME_CANVAS_SHAPE (item);
-
- priv = shape->priv;
-
- /* Common part */
- if (GNOME_CANVAS_ITEM_CLASS (gnome_canvas_shape_parent_class)->update)
- GNOME_CANVAS_ITEM_CLASS (gnome_canvas_shape_parent_class)->update (item, i2c, flags);
-
- gnome_canvas_shape_bounds (item, &x1, &y1, &x2, &y2);
- gnome_canvas_item_i2w_matrix (item, &matrix);
-
- gnome_canvas_matrix_transform_rect (&matrix, &x1, &y1, &x2, &y2);
- gnome_canvas_update_bbox (GNOME_CANVAS_ITEM (shape),
- floor (x1), floor (y1),
- ceil (x2), ceil (y2));
-}
-
-static GnomeCanvasItem *
-gnome_canvas_shape_point (GnomeCanvasItem *item, gdouble x, gdouble y,
- gint cx, gint cy)
-{
- GnomeCanvasShape * shape;
- cairo_t *cr;
-
- shape = GNOME_CANVAS_SHAPE (item);
-
- cr = gnome_canvas_cairo_create_scratch ();
- cairo_append_path (cr, shape->priv->path);
-
- if (gnome_canvas_shape_setup_for_fill (shape, cr) &&
- cairo_in_fill (cr, x, y)) {
- cairo_destroy (cr);
- return item;
- }
-
- if (gnome_canvas_shape_setup_for_stroke (shape, cr) &&
- cairo_in_stroke (cr, x, y)) {
- cairo_destroy (cr);
- return item;
- }
-
- cairo_destroy (cr);
-
- return NULL;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 18:22:49 +0800