3 #include <libgnomecanvas/libgnomecanvas.h>
5 #include "canvas-ruler.h"
6 #include "rgb_macros.h"
20 static void gnome_canvas_ruler_class_init (GnomeCanvasRulerClass *class);
21 static void gnome_canvas_ruler_init (GnomeCanvasRuler *ruler);
22 static void gnome_canvas_ruler_set_arg (GObject *object,
26 static void gnome_canvas_ruler_get_arg (GObject *object,
30 static void gnome_canvas_ruler_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags);
31 static void gnome_canvas_ruler_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2);
32 static double gnome_canvas_ruler_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item);
33 static void gnome_canvas_ruler_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf);
34 static void gnome_canvas_ruler_draw (GnomeCanvasItem *item, GdkDrawable *drawable, int x, int y, int w, int h);
36 static GnomeCanvasItemClass *parent_class;
40 gnome_canvas_ruler_get_type (void)
42 static GtkType ruler_type = 0;
45 GtkTypeInfo ruler_info = {
47 sizeof (GnomeCanvasRuler),
48 sizeof (GnomeCanvasRulerClass),
49 (GtkClassInitFunc) gnome_canvas_ruler_class_init,
50 (GtkObjectInitFunc) gnome_canvas_ruler_init,
51 NULL, /* reserved_1 */
52 NULL, /* reserved_2 */
53 (GtkClassInitFunc) NULL
56 ruler_type = gtk_type_unique (gnome_canvas_item_get_type (), &ruler_info);
63 gnome_canvas_ruler_class_init (GnomeCanvasRulerClass *class)
65 GtkObjectClass *object_class;
66 GnomeCanvasItemClass *item_class;
68 object_class = G_OBJECT_CLASS (class);
69 item_class = (GnomeCanvasItemClass *) class;
71 parent_class = gtk_type_class (gnome_canvas_item_get_type ());
73 object_class->set_property = gnome_canvas_ruler_set_property;
74 object_class->get_property = gnome_canvas_ruler_get_property;
76 g_object_class_install_property (object_class,
78 g_param_spec_double ("x1",
80 _("x coordinate of upper left corner of rect"),
86 g_object_class_install_property (object_class,
88 g_param_spec_double ("y1",
90 _("y coordinate of upper left corner of rect "),
97 g_object_class_install_property (object_class,
99 g_param_spec_double ("x2",
101 _("x coordinate of lower right corner of rect"),
107 g_object_class_install_property (object_class,
109 g_param_spec_double ("y2",
111 _("y coordinate of lower right corner of rect "),
118 g_object_class_install_property (object_class,
119 PROP_FRAMES_PER_UNIT,
120 g_param_spec_long ("frames_per_unit",
121 _("frames_per_unit"),
122 _("frames_per_unit of ruler"),
129 g_object_class_install_property (object_class,
131 g_param_spec_uint ("fill_color",
140 g_object_class_install_property (object_class,
142 g_param_spec_uint ("tick_color",
149 item_class->update = gnome_canvas_ruler_update;
150 item_class->bounds = gnome_canvas_ruler_bounds;
151 item_class->point = gnome_canvas_ruler_point;
152 item_class->render = gnome_canvas_ruler_render;
153 item_class->draw = gnome_canvas_ruler_draw;
157 gnome_canvas_ruler_init (GnomeCanvasRuler *ruler)
163 ruler->frames_per_unit = 1;
164 ruler->fill_color = 0;
165 ruler->tick_color = 0;
169 gnome_canvas_ruler_reset_bounds (GnomeCanvasItem *item)
172 double x1, x2, y1, y2;
175 int Ix1, Ix2, Iy1, Iy2;
178 gnome_canvas_ruler_bounds (item, &x1, &y1, &x2, &y2);
185 gnome_canvas_item_i2w_affine (item, i2w);
186 art_affine_point (&w1, &i1, i2w);
187 art_affine_point (&w2, &i2, i2w);
189 Ix1 = (int) rint(w1.x);
190 Ix2 = (int) rint(w2.x);
191 Iy1 = (int) rint(w1.y);
192 Iy2 = (int) rint(w2.y);
194 gnome_canvas_update_bbox (item, Ix1, Iy1, Ix2, Iy2);
202 gnome_canvas_ruler_set_property (GObject *object,
207 GnomeCanvasItem *item;
208 GnomeCanvasRuler *ruler;
212 item = GNOME_CANVAS_ITEM (object);
213 ruler = GNOME_CANVAS_RULER (object);
220 if (ruler->x1 != g_value_get_double (value)) {
221 ruler->x1 = g_value_get_double (value);
227 if (ruler->y1 != g_value_get_double (value)) {
228 ruler->y1 = g_value_get_double (value);
234 if (ruler->x2 != g_value_get_double (value)) {
235 ruler->x2 = g_value_get_double (value);
241 if (ruler->y2 != g_value_get_double (value)) {
242 ruler->y2 = g_value_get_double (value);
247 case PROP_FRAMES_PER_UNIT:
248 if (ruler->frames_per_unit != g_value_get_long(value)) {
249 ruler->frames_per_unit = g_value_get_long(value);
254 case PROP_FILL_COLOR:
255 if (ruler->fill_color != g_value_get_uint(value)) {
256 ruler->fill_color = g_value_get_uint(value);
261 case PROP_TICK_COLOR:
262 if (ruler->tick_color != g_value_get_uint(value)) {
263 ruler->tick_color = g_value_get_uint(value);
273 gnome_canvas_ruler_reset_bounds (item);
277 gnome_canvas_item_request_update (item);
283 gnome_canvas_ruler_get_property (GObject *object,
289 GnomeCanvasRuler *ruler;
291 ruler = GNOME_CANVAS_RULER (object);
295 g_value_set_double (value, ruler->x1);
298 g_value_set_double (value, ruler->y1);
301 g_value_set_double (value, ruler->x2);
304 g_value_set_double (value, ruler->y2);
306 case PROP_FRAMES_PER_UNIT:
307 g_value_set_long (value, ruler->frames_per_unit);
309 case PROP_FILL_COLOR:
310 g_value_set_uint (value, ruler->fill_color);
312 case PROP_TICK_COLOR:
313 g_value_set_uint (value, ruler->tick_color);
316 arg->type = GTK_TYPE_INVALID;
322 gnome_canvas_ruler_update (GnomeCanvasItem *item, double *affine, ArtSVP *clip_path, int flags)
324 GnomeCanvasRuler *ruler;
328 ruler = GNOME_CANVAS_RULER (item);
330 if (parent_class->update)
331 (* parent_class->update) (item, affine, clip_path, flags);
333 gnome_canvas_ruler_reset_bounds (item);
338 gnome_canvas_item_i2w (item, &x, &y);
339 gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x, y, &ruler->bbox_ulx, &ruler->bbox_uly);
344 gnome_canvas_item_i2w (item, &x, &y);
345 gnome_canvas_w2c (GNOME_CANVAS(item->canvas), x, y, &ruler->bbox_lrx, &ruler->bbox_lry);
347 UINT_TO_RGB (ruler->tick_color, &ruler->tick_r, &ruler->tick_g, &ruler->tick_b);
348 UINT_TO_RGB (ruler->fill_color, &ruler->fill_r, &ruler->fill_g, &ruler->fill_b);
352 gnome_canvas_ruler_render (GnomeCanvasItem *item,
355 GnomeCanvasRuler *ruler;
358 ruler = GNOME_CANVAS_RULER (item);
360 if (parent_class->render) {
361 (*parent_class->render) (item, buf);
365 gnome_canvas_buf_ensure_buf (buf);
369 begin = MAX(ruler->bbox_ulx,buf->rect.x0);
371 if (ruler->bbox_lrx >= 0) {
372 end = MIN(ruler->bbox_lrx,buf->rect.x1);
381 PAINT_BOX (buf, ruler->fill_r, ruler->fill_g, ruler->fill_b, 255, begin, ruler->bbox_uly, end, ruler->bbox_lry - 1);
382 PAINT_HORIZ (buf, ruler->tick_r, ruler->tick_g, ruler->tick_b, begin, end, ruler->bbox_lry - 1);
386 gnome_canvas_ruler_draw (GnomeCanvasItem *item,
387 GdkDrawable *drawable,
389 int width, int height)
391 GnomeCanvasRuler *ruler;
393 ruler = GNOME_CANVAS_RULER (item);
395 if (parent_class->draw) {
396 (* parent_class->draw) (item, drawable, x, y, width, height);
399 fprintf (stderr, "please don't use the CanvasRuler item in a non-aa Canvas\n");
404 gnome_canvas_ruler_bounds (GnomeCanvasItem *item, double *x1, double *y1, double *x2, double *y2)
406 GnomeCanvasRuler *ruler = GNOME_CANVAS_RULER (item);
415 gnome_canvas_ruler_point (GnomeCanvasItem *item, double x, double y, int cx, int cy, GnomeCanvasItem **actual_item)
417 GnomeCanvasRuler *ruler;
418 double x1, y1, x2, y2;
421 ruler = GNOME_CANVAS_RULER (item);
425 /* Find the bounds for the rectangle plus its outline width */
427 gnome_canvas_ruler_bounds (item, &x1, &y1, &x2, &y2);
429 /* Is point inside rectangle */
431 if ((x >= x1) && (y >= y1) && (x <= x2) && (y <= y2)) {
435 /* Point is outside rectangle */
451 return sqrt (dx * dx + dy * dy);