void demo_bitmap_open(struct rtgui_object* object, struct rtgui_event* event)
{
char *str;
rtgui_button_t *button = RTGUI_BUTTON(object);
/* 从textbox控件中取得文件名 */
str = (char*)rtgui_textbox_get_value(bmpdt.box);
if(str == RT_NULL) return;
if(*str == '/' && (rt_strstr(str, ".bmp")!=RT_NULL || rt_strstr(str, ".BMP")!=RT_NULL))
{ /* 如果是bmp文件, 且文件名有效, 则读入图像数据 */
if(bmpdt.filename != RT_NULL)
rt_free(bmpdt.filename);
bmpdt.filename = rt_strdup(str);
if(bmpdt.image != RT_NULL)
rtgui_image_destroy(bmpdt.image);
bmpdt.image = rtgui_image_create_from_file("bmp", bmpdt.filename, RT_TRUE);
if(bmpdt.image != RT_NULL)
{
bmpdt.showimg = bmpdt.image;
bmpdt.scale = 1.0;
bmpdt.angle = 0.0;
rtgui_widget_update(RTGUI_WIDGET(bmpdt.showbox));
}
}
else
rt_kprintf("Bad filename!");
}
void demo_image_rotate(struct rtgui_object* object, struct rtgui_event* event)
{
rtgui_button_t *button = RTGUI_BUTTON(object);
if (bmpdt.image == RT_NULL) return;
}
rt_bool_t rtgui_button_event_handler(struct rtgui_object* object, struct rtgui_event* event)
{
struct rtgui_widget *widget;
struct rtgui_button *btn;
RT_ASSERT(widget != RT_NULL);
RT_ASSERT(event != RT_NULL);
widget = RTGUI_WIDGET(object);
btn = RTGUI_BUTTON(widget);
switch (event->type)
{
case RTGUI_EVENT_PAINT:
rtgui_theme_draw_button(btn);
break;
case RTGUI_EVENT_KBD:
{
struct rtgui_event_kbd* ekbd = (struct rtgui_event_kbd*) event;
if (RTGUI_WIDGET_IS_HIDE(widget)) return RT_FALSE;
if ((ekbd->key == RTGUIK_RETURN) || (ekbd->key == RTGUIK_SPACE))
{
if (RTGUI_KBD_IS_DOWN(ekbd))
{
btn->flag |= RTGUI_BUTTON_FLAG_PRESS;
}
else
{
btn->flag &= ~RTGUI_BUTTON_FLAG_PRESS;
}
/* draw button */
rtgui_theme_draw_button(btn);
if ((btn->flag & RTGUI_BUTTON_FLAG_PRESS) && (btn->on_button != RT_NULL))
{
/* call on button handler */
btn->on_button(RTGUI_OBJECT(widget), event);
}
}
}
break;
case RTGUI_EVENT_MOUSE_BUTTON:
if (RTGUI_WIDGET_IS_HIDE(widget)) return RT_FALSE;
{
struct rtgui_event_mouse* emouse = (struct rtgui_event_mouse*)event;
/* it's not this widget event, clean status */
if (rtgui_rect_contains_point(&(RTGUI_WIDGET(btn)->extent),
emouse->x, emouse->y) != RT_EOK)
{
btn->flag &= ~RTGUI_BUTTON_FLAG_PRESS;
/* draw button */
rtgui_theme_draw_button(btn);
break;
}
if (btn->flag & RTGUI_BUTTON_TYPE_PUSH)
{
/* it's a push button */
if (emouse->button & RTGUI_MOUSE_BUTTON_UP)
{
if (btn->flag & RTGUI_BUTTON_FLAG_PRESS)
{
btn->flag &= ~RTGUI_BUTTON_FLAG_PRESS;
}
else
{
btn->flag |= RTGUI_BUTTON_FLAG_PRESS;
}
/* draw button */
rtgui_theme_draw_button(btn);
if (btn->on_button != RT_NULL)
{
/* call on button handler */
btn->on_button(RTGUI_OBJECT(widget), event);
}
#ifndef RTGUI_USING_SMALL_SIZE
/* invokes call back */
if (widget->on_mouseclick != RT_NULL &&
emouse->button & RTGUI_MOUSE_BUTTON_UP)
return widget->on_mouseclick(RTGUI_OBJECT(widget), event);
#endif
}
}
else
{
if (emouse->button & RTGUI_MOUSE_BUTTON_LEFT)
{
/* set the last mouse event handled widget */
struct rtgui_win* win;
win = RTGUI_WIN(RTGUI_WIDGET(btn)->toplevel);
win->last_mevent_widget = RTGUI_WIDGET(btn);
/* it's a normal button */
if (emouse->button & RTGUI_MOUSE_BUTTON_DOWN)
{
btn->flag |= RTGUI_BUTTON_FLAG_PRESS;
}
else
{
btn->flag &= ~RTGUI_BUTTON_FLAG_PRESS;
}
/* draw button */
rtgui_theme_draw_button(btn);
#ifndef RTGUI_USING_SMALL_SIZE
/* invokes call back */
if (widget->on_mouseclick != RT_NULL &&
emouse->button & RTGUI_MOUSE_BUTTON_UP)
return widget->on_mouseclick(RTGUI_OBJECT(widget), event);
#endif
if (!(btn->flag & RTGUI_BUTTON_FLAG_PRESS) && (btn->on_button != RT_NULL))
{
/* call on button handler */
btn->on_button(RTGUI_OBJECT(widget), event);
}
}
}
return RT_TRUE;
}
}
return RT_FALSE;
}