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particle: implement a default on_mouse handler

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Which changes the cursor to a hand when there's a non-NULL on-click
handler.
This commit is contained in:
Daniel Eklöf 2018-12-29 14:40:45 +01:00
parent 9e5dbfe27d
commit cecab625ac
1 changed files with 21 additions and 0 deletions
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21
particle.c
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@ -2,6 +2,12 @@
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#define LOG_MODULE "particle"
#define LOG_ENABLE_DBG 1
#include "log.h"
#include "bar.h"
void
particle_default_destroy(struct particle *particle)
@ -45,3 +51,18 @@ exposable_default_destroy(struct exposable *exposable)
free(exposable->on_click);
free(exposable);
}
void
exposable_default_on_mouse(struct exposable *exposable, struct bar *bar,
enum mouse_event event, int x, int y)
{
LOG_DBG("on_mouse: exposable=%p, event=%s, x=%d, y=%d", exposable,
event == ON_MOUSE_MOTION ? "motion" : "click", x, y);
assert(exposable->particle != NULL);
if (exposable->on_click == NULL)
bar->set_cursor(bar, "left_ptr");
else
bar->set_cursor(bar, "hand2");
}