rtt-f030/components/rtgui/widgets/checkbox.c

141 lines
3.5 KiB
C

#include <rtgui/dc.h>
#include <rtgui/rtgui_theme.h>
#include <rtgui/widgets/checkbox.h>
static void _rtgui_checkbox_constructor(rtgui_checkbox_t *box)
{
/* init widget and set event handler */
RTGUI_WIDGET(box)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
rtgui_widget_set_event_handler(RTGUI_WIDGET(box), rtgui_checkbox_event_handler);
/* set status */
box->status_down = RTGUI_CHECKBOX_STATUS_UNCHECKED;
/* set default gc */
RTGUI_WIDGET_TEXTALIGN(RTGUI_WIDGET(box)) = RTGUI_ALIGN_LEFT | RTGUI_ALIGN_CENTER_VERTICAL;
}
rtgui_type_t *rtgui_checkbox_type_get(void)
{
static rtgui_type_t *checkbox_type = RT_NULL;
if (!checkbox_type)
{
checkbox_type = rtgui_type_create("checkbox", RTGUI_LABEL_TYPE,
sizeof(rtgui_checkbox_t), RTGUI_CONSTRUCTOR(_rtgui_checkbox_constructor), RT_NULL);
}
return checkbox_type;
}
rt_bool_t rtgui_checkbox_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
{
struct rtgui_checkbox* box = (struct rtgui_checkbox*)widget;
switch (event->type)
{
case RTGUI_EVENT_PAINT:
#ifndef RTGUI_USING_SMALL_SIZE
if (widget->on_draw != RT_NULL)
{
return widget->on_draw(widget, event);
}
else
#endif
rtgui_theme_draw_checkbox(box);
break;
case RTGUI_EVENT_MOUSE_BUTTON:
{
if (RTGUI_WIDGET_IS_ENABLE(widget) && !RTGUI_WIDGET_IS_HIDE(widget))
{
struct rtgui_event_mouse* emouse = (struct rtgui_event_mouse*)event;
if (emouse->button & RTGUI_MOUSE_BUTTON_LEFT &&
emouse->button & RTGUI_MOUSE_BUTTON_UP)
{
/* set focus */
rtgui_widget_focus(widget);
if (box->status_down & RTGUI_CHECKBOX_STATUS_UNCHECKED)
{
/* check it */
box->status_down = RTGUI_CHECKBOX_STATUS_CHECKED;
}
else
{
/* un-check it */
box->status_down = RTGUI_CHECKBOX_STATUS_UNCHECKED;
}
}
/* draw checkbox */
rtgui_theme_draw_checkbox(box);
#ifndef RTGUI_USING_SMALL_SIZE
/* call user callback */
if (widget->on_mouseclick != RT_NULL)
{
return widget->on_mouseclick(widget, event);
}
#endif
}
return RT_TRUE;
}
}
return RT_FALSE;
}
struct rtgui_checkbox* rtgui_checkbox_create(const char* text, rt_bool_t checked)
{
struct rtgui_checkbox* box;
box = (struct rtgui_checkbox*) rtgui_widget_create (RTGUI_CHECKBOX_TYPE);
if (box != RT_NULL)
{
rtgui_rect_t rect;
/* set default rect */
rtgui_font_get_metrics(rtgui_font_default(), text, &rect);
rect.x2 += RTGUI_BORDER_DEFAULT_WIDTH + 5 + (RTGUI_BORDER_DEFAULT_WIDTH << 1);
rect.y2 += (RTGUI_BORDER_DEFAULT_WIDTH << 1);
rtgui_widget_set_rect(RTGUI_WIDGET(box), &rect);
rtgui_label_set_text(RTGUI_LABEL(box), text);
if (checked == RT_TRUE)
box->status_down = RTGUI_CHECKBOX_STATUS_CHECKED;
else
box->status_down = RTGUI_CHECKBOX_STATUS_UNCHECKED;
}
return box;
}
void rtgui_checkbox_destroy(rtgui_checkbox_t* box)
{
rtgui_widget_destroy(RTGUI_WIDGET(box));
}
void rtgui_checkbox_set_checked(rtgui_checkbox_t* checkbox, rt_bool_t checked)
{
RT_ASSERT(checkbox != RT_NULL);
if (checked == RT_TRUE)
checkbox->status_down = RTGUI_CHECKBOX_STATUS_CHECKED;
else
checkbox->status_down = RTGUI_CHECKBOX_STATUS_UNCHECKED;
}
rt_bool_t rtgui_checkbox_get_checked(rtgui_checkbox_t* checkbox)
{
RT_ASSERT(checkbox != RT_NULL);
if (checkbox->status_down == RTGUI_CHECKBOX_STATUS_CHECKED)
return RT_TRUE;
return RT_FALSE;
}