#include <stdio.h>
#include <math.h>
+#include <cairo.h>
#include <libgnomecanvas/libgnomecanvas.h>
#include "canvas-simplerect.h"
PROP_FILL_COLOR_RGBA,
PROP_OUTLINE_COLOR_RGBA,
PROP_DRAW
-
};
static void gnome_canvas_simplerect_class_init (GnomeCanvasSimpleRectClass *class);
gobject_class = (GObjectClass *) class;
object_class = (GtkObjectClass *) class;
item_class = (GnomeCanvasItemClass *) class;
-
+
parent_class = g_type_class_peek_parent (class);
gobject_class->set_property = gnome_canvas_simplerect_set_property;
gobject_class->get_property = gnome_canvas_simplerect_get_property;
-
+
g_object_class_install_property (gobject_class,
PROP_X1,
g_param_spec_double ("x1",
-G_MAXDOUBLE,
G_MAXDOUBLE,
0.0,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
PROP_Y1,
g_param_spec_double ("y1",
-G_MAXDOUBLE,
G_MAXDOUBLE,
0.0,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
PROP_X2,
-G_MAXDOUBLE,
G_MAXDOUBLE,
0.0,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
PROP_Y2,
g_param_spec_double ("y2",
-G_MAXDOUBLE,
G_MAXDOUBLE,
0.0,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
PROP_OUTLINE_PIXELS,
0,
G_MAXUINT,
0,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
PROP_OUTLINE_WHAT,
0,
G_MAXUINT,
0,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
_("fill"),
_("fill rectangle"),
TRUE,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
PROP_DRAW,
g_param_spec_boolean ("draw",
_("draw"),
_("draw rectangle"),
TRUE,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
PROP_OUTLINE_COLOR_RGBA,
0,
G_MAXUINT,
0,
- G_PARAM_READWRITE));
-
+ G_PARAM_READWRITE));
+
g_object_class_install_property (gobject_class,
PROP_FILL_COLOR_RGBA,
0,
G_MAXUINT,
0,
- G_PARAM_READWRITE));
+ G_PARAM_READWRITE));
object_class->destroy = gnome_canvas_simplerect_destroy;
static void
gnome_canvas_simplerect_destroy (GtkObject *object)
{
- GnomeCanvasSimpleRect *rect;
-
g_return_if_fail (object != NULL);
g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
- rect = GNOME_CANVAS_SIMPLERECT (object);
-
/* remember, destroy can be run multiple times! */
if (GTK_OBJECT_CLASS (parent_class)->destroy)
*y1 = simplerect->y1;
*x2 = simplerect->x2 + 1;
*y2 = simplerect->y2 + 1;
-
}
-static void
+static void
gnome_canvas_simplerect_reset_bounds (GnomeCanvasItem *item)
{
GnomeCanvasSimpleRect* simplerect;
old_y1 = item->y1;
old_x2 = item->x2;
old_y2 = item->y2;
-
+
gnome_canvas_simplerect_bounds (item, &x1, &y1, &x2, &y2);
gnome_canvas_item_i2w (item, &x1, &y1);
gnome_canvas_item_i2w (item, &x2, &y2);
gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x1, y1, &simplerect->bbox_ulx, &simplerect->bbox_uly);
gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x2, y2, &simplerect->bbox_lrx, &simplerect->bbox_lry);
- /* now queue redraws for changed areas */
+ /* now queue redraws for changed areas */
if (item->x1 == old_x1 && item->x2 == old_x2) {
double start_x = MIN (item->x2, old_x2);
double end_x = MAX (item->x2, old_x2);
- gnome_canvas_request_redraw (item->canvas, start_x - 0.5, item->y1, end_x + 1.5, item->y2);
+ gnome_canvas_request_redraw (item->canvas, start_x - 0.5, item->y1, end_x + 1.5, item->y2 + 0.5);
return;
} else if (item->x2 == old_x2) {
/* end didn't change, so just draw at the start */
-
+
double start_x = MIN (item->x1, old_x1);
double end_x = MAX (item->x1, old_x1);
return;
}
- }
+ }
new.x0 = x1;
new.y0 = y1;
old.y1 = old_y2;
art_drect_union (&unionrect, &old, &new);
- gnome_canvas_request_redraw (item->canvas,
+ gnome_canvas_request_redraw (item->canvas,
unionrect.x0 - 0.5,
unionrect.y0 - 0.5,
unionrect.x1 + 1.5,
unionrect.y1 + 1.5);
}
-/*
- * CANVAS CALLBACKS
+/*
+ * CANVAS CALLBACKS
*/
static void
GParamSpec *pspec)
{
+ (void) pspec;
+
GnomeCanvasSimpleRect *simplerect;
int update = FALSE;
int bounds_changed = FALSE;
break;
}
- simplerect->full_draw_on_update = update;
+ if (!simplerect->full_draw_on_update) {
+ /* XXX: not sure about this;
+ *
+ * I changed the next line to be conditional, rather than always
+ * being executed. Without the condition, the following bug occurs:
+ *
+ * caller sets a property (e.g. outline colour); this sets update = TRUE and hence full_draw_on_update = TRUE
+ * update is requested (and it is intended, I suppose, that during this update, full_draw_on_update is noted)
+ * ... update does not occur before ...
+ * caller sets the same property again to the same value; this sets update = FALSE and hence full_draw_on_update = FALSE
+ * update now occurs, but full_draw_on_update is FALSE, so the full redraw does not happen,
+ * which results in graphical glitches.
+ *
+ * (Carl, 2/1/2010)
+ */
+ simplerect->full_draw_on_update = update;
+ }
if (update || bounds_changed) {
gnome_canvas_item_request_update (GNOME_CANVAS_ITEM(object));
GParamSpec *pspec)
{
GnomeCanvasSimpleRect *rect = GNOME_CANVAS_SIMPLERECT (object);
-
+
g_return_if_fail (object != NULL);
g_return_if_fail (GNOME_IS_CANVAS_SIMPLERECT (object));
case PROP_DRAW:
g_value_set_boolean (value, rect->draw);
break;
-
+
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
gnome_canvas_simplerect_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
{
GnomeCanvasSimpleRect *simplerect;
- unsigned char foo;
simplerect = GNOME_CANVAS_SIMPLERECT (item);
gnome_canvas_simplerect_reset_bounds (item);
if (simplerect->full_draw_on_update) {
- gnome_canvas_request_redraw (item->canvas,
- simplerect->bbox_ulx,
- simplerect->bbox_uly,
- simplerect->bbox_lrx+0.5,
- simplerect->bbox_lry+0.5);
+ gnome_canvas_request_redraw (item->canvas,
+ simplerect->bbox_ulx,
+ simplerect->bbox_uly,
+ simplerect->bbox_lrx+0.5,
+ simplerect->bbox_lry+0.5);
simplerect->full_draw_on_update = FALSE;
}
UINT_TO_RGBA (simplerect->fill_color, &simplerect->fill_r, &simplerect->fill_g, &simplerect->fill_b, &simplerect->fill_a);
- UINT_TO_RGBA (simplerect->outline_color, &simplerect->outline_r, &simplerect->outline_g, &simplerect->outline_b, &foo);
+ UINT_TO_RGBA (simplerect->outline_color, &simplerect->outline_r, &simplerect->outline_g, &simplerect->outline_b, &simplerect->outline_a);
}
// this can be useful for debugging/understanding how the canvas redraws
if (parent_class->render) {
(*parent_class->render) (item, buf);
}
-
+
if (buf->is_bg) {
#ifdef HARLEQUIN_DEBUGGING
if (!simplerect->draw) {
return;
}
-
+
self.x0 = simplerect->bbox_ulx;
self.y0 = simplerect->bbox_uly;
self.x1 = simplerect->bbox_lrx;
ey = simplerect->bbox_lry-1;
if (simplerect->fill) {
-
+
// this can be useful for debugging/understanding how the canvas redraws
// stuff.
randg = random() % 255;
randb = random() % 255;
PAINT_BOX(buf, randr, randg, randb, simplerect->fill_a, begin, sy, end, ey);
-#else
- PAINT_BOX (buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a,
+#else
+ PAINT_BOX (buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a,
intersection.x0, intersection.y0,
intersection.x1, intersection.y1);
#endif
-
- }
-
- for (i = 0; i < simplerect->outline_pixels; ++i) {
-
- if (simplerect->outline_what & 0x1) {
- if (begin == simplerect->bbox_ulx) {
- PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin + i, sy, ey);
- }
- }
- if (simplerect->outline_what & 0x2) {
- if (end == (simplerect->bbox_lrx - 1)) {
- PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, end - i, sy, ey + 1);
- }
- }
-
- if (simplerect->outline_what & 0x4) {
- PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end, sy+i);
- }
-
- if (simplerect->outline_what & 0x8) {
- PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end + 1, ey-i);
- }
}
+
+ if (simplerect->outline_a > 0) {
+ for (i = 0; i < simplerect->outline_pixels; ++i) {
+
+ if (simplerect->outline_what & 0x1) {
+ if (begin == simplerect->bbox_ulx) {
+ PAINT_VERTA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin + i, sy, ey);
+ }
+ }
+
+ if (simplerect->outline_what & 0x2) {
+ if (end == (simplerect->bbox_lrx - 1)) {
+ PAINT_VERTA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, end - i, sy, ey + 1);
+ }
+ }
+
+ if (simplerect->outline_what & 0x4) {
+ PAINT_HORIZA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin, end, sy+i);
+ }
+
+ if (simplerect->outline_what & 0x8) {
+ PAINT_HORIZA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin, end + 1, ey-i);
+ }
+ }
+ }
}
#else /* SIMPLERECT_FAST_RENDERER */
GnomeCanvasSimpleRect *simplerect;
int end, begin;
int ey, sy;
- unsigned int i;
+ int i;
simplerect = GNOME_CANVAS_SIMPLERECT (item);
ey = simplerect->bbox_lry-1;
if (simplerect->fill) {
-
+
#ifdef HARLEQUIN_DEBUGGING
gint randr, randg, randb;
randr = random() % 255;
randg = random() % 255;
randb = random() % 255;
PAINT_BOX(buf, randr, randg, randb, simplerect->fill_a, begin, sy, end, ey);
-#else
+#else
PAINT_BOX(buf, simplerect->fill_r, simplerect->fill_g, simplerect->fill_b, simplerect->fill_a, begin, sy, end, ey);
#endif
}
- for (i = 0; i < simplerect->outline_pixels; ++i) {
+ if (simplerect->outline_a) {
+ for (i = 0; i < (int) simplerect->outline_pixels; ++i) {
+
+ if (simplerect->outline_what & 0x1) {
+ if (begin == simplerect->bbox_ulx) {
+ PAINT_VERTA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin + i, sy, ey);
+ }
+ }
+
+ if (simplerect->outline_what & 0x2) {
+ if (end == (simplerect->bbox_lrx - 1)) {
+ PAINT_VERTA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, end - i, sy, ey + 1);
+ }
+ }
+
+ if (simplerect->outline_what & 0x4) {
+ PAINT_HORIZA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin, end, sy+i);
+ }
+
+ if (simplerect->outline_what & 0x8) {
+ PAINT_HORIZA(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, simplerect->outline_a, begin, end + 1, ey-i);
+ }
+ }
+ }
+}
+#endif /* SIMPLERECT_FAST_RENDERER */
+
+static void
+gnome_canvas_simplerect_draw (GnomeCanvasItem *item,
+ GdkDrawable *drawable,
+ int x, int y,
+ int width, int height)
+{
+ GnomeCanvasSimpleRect *simplerect;
+ cairo_t* cr;
+ double ulx;
+ double uly;
+ double lrx;
+ double lry;
+
+ simplerect = GNOME_CANVAS_SIMPLERECT (item);
+
+ cr = gdk_cairo_create (drawable);
+
+ if (x > simplerect->bbox_ulx) {
+ ulx = x;
+ } else {
+ ulx = simplerect->bbox_ulx;
+ }
+
+ if (y > simplerect->bbox_uly) {
+ uly = y;
+ } else {
+ uly = simplerect->bbox_uly;
+ }
+
+ if (x + width > simplerect->bbox_lrx) {
+ lrx = simplerect->bbox_lrx;
+ } else {
+ lrx = x + width;
+ }
+
+ if (y + height > simplerect->bbox_lry) {
+ lry = simplerect->bbox_lry;
+ } else {
+ lry = y + height;
+ }
+
+ ulx -= x;
+ uly -= y;
+ lrx -= x;
+ lry -= y;
+
+ cairo_rectangle (cr, ulx, uly, lrx - ulx, lry - uly);
+
+ if (simplerect->fill) {
+ cairo_set_source_rgba (cr,
+ simplerect->fill_r/255.0,
+ simplerect->fill_g/255.0,
+ simplerect->fill_b/255.0,
+ simplerect->fill_a/255.0);
+ cairo_fill (cr);
+ }
+
+ if (simplerect->outline_what && simplerect->outline_pixels) {
+
+#define x_in_range(a) (x <= (a) && (a) < x + width)
+#define y_in_range(a) (y <= (a) && (a) < y + height)
+
+ cairo_set_line_width (cr, simplerect->outline_pixels);
+
+ cairo_set_source_rgb (cr,
+ simplerect->outline_r/255.0,
+ simplerect->outline_g/255.0,
+ simplerect->outline_b/255.0);
if (simplerect->outline_what & 0x1) {
- if (begin == simplerect->bbox_ulx) {
- PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin + i, sy, ey);
+ /* left edge, if visible */
+ if (x_in_range (simplerect->bbox_ulx)) {
+ cairo_move_to (cr, ulx+0.5, uly+0.5);
+ cairo_line_to (cr, ulx+0.5, lry+0.5);
+ cairo_stroke (cr);
}
}
if (simplerect->outline_what & 0x2) {
- if (end == (simplerect->bbox_lrx - 1)) {
- PAINT_VERT(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, end - i, sy, ey + 1);
+ /* right edge, if visible */
+ if (x_in_range (simplerect->bbox_lrx)) {
+ cairo_move_to (cr, lrx+0.5, uly+0.5);
+ cairo_line_to (cr, lrx+0.5, lry+0.5);
+ cairo_stroke (cr);
}
}
if (simplerect->outline_what & 0x4) {
- PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end, sy+i);
+ /* top edge */
+ if (y_in_range (simplerect->bbox_uly)) {
+ cairo_move_to (cr, ulx+0.5, uly+0.5);
+ cairo_line_to (cr, lrx+0.5, uly+0.5);
+ cairo_stroke (cr);
+ }
}
-
+
if (simplerect->outline_what & 0x8) {
- PAINT_HORIZ(buf, simplerect->outline_r, simplerect->outline_g, simplerect->outline_b, begin, end + 1, ey-i);
+ /* bottom edge */
+ if (y_in_range (simplerect->bbox_lry)) {
+ cairo_move_to (cr, ulx+0.5, lry+0.5);
+ cairo_line_to (cr, lrx+0.5, lry+0.5);
+ cairo_stroke (cr);
+ }
}
}
-}
-#endif /* SIMPLERECT_FAST_RENDERER */
-static void
-gnome_canvas_simplerect_draw (GnomeCanvasItem *item,
- GdkDrawable *drawable,
- int x, int y,
- int width, int height)
-{
- fprintf (stderr, "please don't use the CanvasSimpleRect item in a non-aa Canvas\n");
- abort ();
+ cairo_destroy (cr);
}
static double
gnome_canvas_simplerect_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item)
{
- GnomeCanvasSimpleRect *simplerect;
+ (void) cx;
+ (void) cy;
+
double x1, y1, x2, y2;
double dx, dy;
- simplerect = GNOME_CANVAS_SIMPLERECT (item);
-
*actual_item = item;
/* Find the bounds for the rectangle plus its outline width */
gnome_canvas_simplerect_bounds (item, &x1, &y1, &x2, &y2);
/* Is point inside rectangle */
-
+
if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
return 0.0;
}
projects / ardour.git / blobdiff