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/*
* Init and freeall, and some general functions.
*/
#include "dw.h"
#include "dw_style.h"
#include <gdk/gdk.h>
#include "debug.h"
GdkCursor *Dw_cursor_hand;
void a_Dw_init (void)
{
DBG_OBJ_COLOR ("^Dw", "ffffe0");
DBG_OBJ_COLOR ("^Gtk", "d0ffd0");
a_Dw_style_init ();
Dw_cursor_hand = gdk_cursor_new(GDK_HAND2);
}
void a_Dw_freeall (void)
{
a_Dw_style_freeall ();
gdk_cursor_destroy (Dw_cursor_hand);
}
/*
* Return whether src1 and src2 intersect. If yes, return the intersection
* rectangle in dest.
*
* The function has been copied from gdktrectangle.c
*/
gint p_Dw_rectangle_intersect (DwRectangle *src1,
DwRectangle *src2,
DwRectangle *dest)
{
DwRectangle *temp;
gint src1_x2, src1_y2;
gint src2_x2, src2_y2;
gint return_val;
g_return_val_if_fail (src1 != NULL, FALSE);
g_return_val_if_fail (src2 != NULL, FALSE);
g_return_val_if_fail (dest != NULL, FALSE);
return_val = FALSE;
if (src2->x < src1->x) {
temp = src1;
src1 = src2;
src2 = temp;
}
dest->x = src2->x;
src1_x2 = src1->x + src1->width;
src2_x2 = src2->x + src2->width;
if (src2->x < src1_x2) {
if (src1_x2 < src2_x2)
dest->width = src1_x2 - dest->x;
else
dest->width = src2_x2 - dest->x;
if (src2->y < src1->y) {
temp = src1;
src1 = src2;
src2 = temp;
}
dest->y = src2->y;
src1_y2 = src1->y + src1->height;
src2_y2 = src2->y + src2->height;
if (src2->y < src1_y2) {
return_val = TRUE;
if (src1_y2 < src2_y2)
dest->height = src1_y2 - dest->y;
else
dest->height = src2_y2 - dest->y;
if (dest->height == 0)
return_val = FALSE;
if (dest->width == 0)
return_val = FALSE;
}
}
return return_val;
}
/*
* Return whether rect1 is a subset of rect2.
*/
gboolean p_Dw_rectangle_is_subset (DwRectangle *rect1,
DwRectangle *rect2)
{
return
rect1->x >= rect2->x &&
rect1->y >= rect2->y &&
rect1->x + rect1->width <= rect2->x + rect2->width &&
rect1->y + rect1->height <= rect2->y + rect2->height;
}
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