rt-thread-official/rtgui/widgets/iconbox.c

155 lines
3.8 KiB
C

/*
* File : iconbox.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rt-thread.org/license/LICENSE
*
* Change Logs:
* Date Author Notes
* 2009-10-16 Bernard first version
*/
#include <rtgui/dc.h>
#include <rtgui/widgets/iconbox.h>
#include <rtgui/rtgui_theme.h>
static void _rtgui_iconbox_constructor(rtgui_iconbox_t *iconbox)
{
/* init widget and set event handler */
RTGUI_WIDGET(iconbox)->flag |= RTGUI_WIDGET_FLAG_TRANSPARENT;
rtgui_widget_set_event_handler(RTGUI_WIDGET(iconbox), rtgui_iconbox_event_handler);
/* set proper of control */
iconbox->image = RT_NULL;
iconbox->selected = RT_FALSE;
iconbox->text = RT_NULL;
iconbox->text_position = RTGUI_ICONBOX_TEXT_BELOW;
}
rtgui_type_t *rtgui_iconbox_type_get(void)
{
static rtgui_type_t *iconbox_type = RT_NULL;
if (!iconbox_type)
{
iconbox_type = rtgui_type_create("iconbox", RTGUI_WIDGET_TYPE,
sizeof(rtgui_iconbox_t), RTGUI_CONSTRUCTOR(_rtgui_iconbox_constructor), RT_NULL);
}
return iconbox_type;
}
rt_bool_t rtgui_iconbox_event_handler(struct rtgui_widget* widget, struct rtgui_event* event)
{
struct rtgui_iconbox* iconbox = (struct rtgui_iconbox*)widget;
switch (event->type)
{
case RTGUI_EVENT_PAINT:
if (widget->on_draw != RT_NULL) widget->on_draw(widget, event);
else
{
rtgui_theme_draw_iconbox(iconbox);
}
break;
}
return RT_FALSE;
}
struct rtgui_iconbox* rtgui_iconbox_create(struct rtgui_image* image,
const unsigned char* text,
int position)
{
struct rtgui_iconbox* iconbox;
iconbox = (struct rtgui_iconbox*)rtgui_widget_create(RTGUI_ICONBOX_TYPE);
if (iconbox != RT_NULL)
{
rtgui_rect_t rect = {0, 0, 0, 0}, text_rect;
rect.x2 = image->w;
rect.y2 = image->h;
/* get text rect */
rtgui_font_get_metrics(rtgui_font_default(), text, &text_rect);
if (position == RTGUI_ICONBOX_TEXT_BELOW)
{
rect.y2 += RTGUI_WIDGET_DEFAULT_MARGIN;
if (text_rect.x2 > rect.x2)
{
rect.x2 = text_rect.x2;
}
rect.y2 += text_rect.y2;
}
else if (position == RTGUI_ICONBOX_TEXT_RIGHT)
{
rect.x2 += RTGUI_WIDGET_DEFAULT_MARGIN;
if (text_rect.y2 > rect.y2)
{
rect.y2 = text_rect.y2;
}
rect.x2 += text_rect.x2;
}
/* set widget rect */
rtgui_widget_set_rect(RTGUI_WIDGET(iconbox), &rect);
/* set image and text position */
iconbox->image = image;
iconbox->text = (unsigned char*)rt_strdup((const char*)text);
iconbox->text_position = position;
}
return iconbox;
}
void rtgui_iconbox_destroy(struct rtgui_iconbox* iconbox)
{
rtgui_widget_destroy(RTGUI_WIDGET(iconbox));
}
void rtgui_iconbox_set_text_position(struct rtgui_iconbox* iconbox, int position)
{
rtgui_rect_t rect = {0, 0, 0, 0}, text_rect;
RT_ASSERT(iconbox != RT_NULL);
iconbox->text_position = position;
/* set mini width and height */
rect.x2 = iconbox->image->w;
rect.y2 = iconbox->image->h;
/* get text rect */
if (iconbox->text != RT_NULL)
{
rtgui_font_get_metrics(rtgui_font_default(),
iconbox->text, &text_rect);
if (position == RTGUI_ICONBOX_TEXT_BELOW)
{
rect.y2 += RTGUI_WIDGET_DEFAULT_MARGIN;
if (text_rect.x2 > rect.x2)
{
rect.x2 = text_rect.x2;
}
rect.y2 += text_rect.y2;
}
else if (position == RTGUI_ICONBOX_TEXT_RIGHT)
{
rect.x2 += RTGUI_WIDGET_DEFAULT_MARGIN;
if (text_rect.y2 > rect.y2)
{
rect.y2 = text_rect.y2;
}
rect.x2 += text_rect.x2;
}
}
rtgui_widget_set_miniwidth(RTGUI_WIDGET(iconbox), rect.x2);
rtgui_widget_set_miniheight(RTGUI_WIDGET(iconbox), rect.y2);
}