262 lines
6.2 KiB
C
262 lines
6.2 KiB
C
/*
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* File : button.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-10-16 Bernard first version
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*/
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#include <rtgui/dc.h>
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#include <rtgui/rtgui_theme.h>
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#include <rtgui/widgets/button.h>
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#include <rtgui/widgets/window.h>
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static void _rtgui_button_constructor(rtgui_button_t *button)
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{
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/* init widget and set event handler */
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RTGUI_WIDGET(button)->flag |= RTGUI_WIDGET_FLAG_FOCUSABLE;
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rtgui_object_set_event_handler(RTGUI_OBJECT(button), rtgui_button_event_handler);
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/* un-press button */
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button->flag = 0;
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/* set flag and on_button event handler */
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button->pressed_image = RT_NULL;
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button->unpressed_image = RT_NULL;
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button->on_button = RT_NULL;
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/* set gc */
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RTGUI_WIDGET_FOREGROUND(button) = default_foreground;
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RTGUI_WIDGET_BACKGROUND(button) = RTGUI_RGB(212, 208, 200);
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RTGUI_WIDGET_TEXTALIGN(button) = RTGUI_ALIGN_CENTER_HORIZONTAL | RTGUI_ALIGN_CENTER_VERTICAL;
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}
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static void _rtgui_button_destructor(rtgui_button_t *button)
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{
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if (button->pressed_image != RT_NULL)
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{
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rtgui_image_destroy(button->pressed_image);
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button->pressed_image = RT_NULL;
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}
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if (button->unpressed_image != RT_NULL)
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{
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rtgui_image_destroy(button->unpressed_image);
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button->unpressed_image = RT_NULL;
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}
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}
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DEFINE_CLASS_TYPE(button, "button",
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RTGUI_LABEL_TYPE,
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_rtgui_button_constructor,
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_rtgui_button_destructor,
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sizeof(struct rtgui_button));
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rt_bool_t rtgui_button_event_handler(struct rtgui_object* object, struct rtgui_event* event)
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{
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struct rtgui_widget *widget;
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struct rtgui_button *btn;
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RT_ASSERT(object != RT_NULL);
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RT_ASSERT(event != RT_NULL);
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widget = RTGUI_WIDGET(object);
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btn = RTGUI_BUTTON(widget);
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switch (event->type)
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{
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case RTGUI_EVENT_PAINT:
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rtgui_theme_draw_button(btn);
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break;
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case RTGUI_EVENT_KBD:
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{
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struct rtgui_event_kbd* ekbd = (struct rtgui_event_kbd*) event;
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if (RTGUI_WIDGET_IS_HIDE(widget)) return RT_FALSE;
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if ((ekbd->key == RTGUIK_RETURN) || (ekbd->key == RTGUIK_SPACE))
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{
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if (RTGUI_KBD_IS_DOWN(ekbd))
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{
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btn->flag |= RTGUI_BUTTON_FLAG_PRESS;
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}
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else
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{
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btn->flag &= ~RTGUI_BUTTON_FLAG_PRESS;
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}
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/* draw button */
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rtgui_theme_draw_button(btn);
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if ((btn->flag & RTGUI_BUTTON_FLAG_PRESS) && (btn->on_button != RT_NULL))
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{
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/* call on button handler */
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btn->on_button(RTGUI_OBJECT(widget), event);
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}
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}
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}
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break;
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case RTGUI_EVENT_MOUSE_BUTTON:
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if (RTGUI_WIDGET_IS_HIDE(widget)) return RT_FALSE;
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{
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struct rtgui_event_mouse* emouse = (struct rtgui_event_mouse*)event;
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/* it's not this widget event, clean status */
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if (rtgui_rect_contains_point(&(RTGUI_WIDGET(btn)->extent),
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emouse->x, emouse->y) != RT_EOK)
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{
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btn->flag &= ~RTGUI_BUTTON_FLAG_PRESS;
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/* draw button */
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rtgui_theme_draw_button(btn);
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break;
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}
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if (btn->flag & RTGUI_BUTTON_TYPE_PUSH)
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{
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/* it's a push button */
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if (emouse->button & RTGUI_MOUSE_BUTTON_UP)
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{
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if (btn->flag & RTGUI_BUTTON_FLAG_PRESS)
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{
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btn->flag &= ~RTGUI_BUTTON_FLAG_PRESS;
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}
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else
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{
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btn->flag |= RTGUI_BUTTON_FLAG_PRESS;
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}
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/* draw button */
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rtgui_theme_draw_button(btn);
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if (btn->on_button != RT_NULL)
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{
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/* call on button handler */
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btn->on_button(RTGUI_OBJECT(widget), event);
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}
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#ifndef RTGUI_USING_SMALL_SIZE
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/* invokes call back */
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if (widget->on_mouseclick != RT_NULL &&
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emouse->button & RTGUI_MOUSE_BUTTON_UP)
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return widget->on_mouseclick(RTGUI_OBJECT(widget), event);
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#endif
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}
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}
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else
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{
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if (emouse->button & RTGUI_MOUSE_BUTTON_LEFT)
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{
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/* set the last mouse event handled widget */
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struct rtgui_win* win;
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win = RTGUI_WIN(RTGUI_WIDGET(btn)->toplevel);
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win->last_mevent_widget = RTGUI_WIDGET(btn);
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/* it's a normal button */
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if (emouse->button & RTGUI_MOUSE_BUTTON_DOWN)
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{
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btn->flag |= RTGUI_BUTTON_FLAG_PRESS;
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}
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else
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{
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btn->flag &= ~RTGUI_BUTTON_FLAG_PRESS;
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}
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/* draw button */
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rtgui_theme_draw_button(btn);
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#ifndef RTGUI_USING_SMALL_SIZE
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/* invokes call back */
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if (widget->on_mouseclick != RT_NULL &&
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emouse->button & RTGUI_MOUSE_BUTTON_UP)
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return widget->on_mouseclick(RTGUI_OBJECT(widget), event);
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#endif
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if (!(btn->flag & RTGUI_BUTTON_FLAG_PRESS) && (btn->on_button != RT_NULL))
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{
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/* call on button handler */
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btn->on_button(RTGUI_OBJECT(widget), event);
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}
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}
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}
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return RT_TRUE;
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}
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default:
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return rtgui_widget_event_handler(object, event);
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}
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return RT_FALSE;
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}
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RTM_EXPORT(rtgui_button_event_handler);
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rtgui_button_t* rtgui_button_create(const char* text)
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{
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struct rtgui_button* btn;
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btn = (struct rtgui_button*) rtgui_widget_create (RTGUI_BUTTON_TYPE);
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if (btn != RT_NULL)
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{
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rtgui_rect_t rect;
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/* set default rect */
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rtgui_font_get_metrics(rtgui_font_default(), text, &rect);
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rect.x2 += (RTGUI_BORDER_DEFAULT_WIDTH << 1);
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rect.y2 += (RTGUI_BORDER_DEFAULT_WIDTH << 1);
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rtgui_widget_set_rect(RTGUI_WIDGET(btn), &rect);
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rtgui_label_set_text(RTGUI_LABEL(btn), text);
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}
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return btn;
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}
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RTM_EXPORT(rtgui_button_create);
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rtgui_button_t* rtgui_pushbutton_create(const char* text)
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{
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rtgui_button_t* btn;
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btn = rtgui_button_create(text);
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if (btn != RT_NULL) btn->flag |= RTGUI_BUTTON_TYPE_PUSH;
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return btn;
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}
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RTM_EXPORT(rtgui_pushbutton_create);
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void rtgui_button_destroy(rtgui_button_t* btn)
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{
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rtgui_widget_destroy(RTGUI_WIDGET(btn));
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}
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RTM_EXPORT(rtgui_button_destroy);
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void rtgui_button_set_pressed_image(rtgui_button_t* btn, rtgui_image_t* image)
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{
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RT_ASSERT(btn != RT_NULL);
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btn->pressed_image = image;
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}
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RTM_EXPORT(rtgui_button_set_pressed_image);
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void rtgui_button_set_unpressed_image(rtgui_button_t* btn, rtgui_image_t* image)
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{
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RT_ASSERT(btn != RT_NULL);
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btn->unpressed_image = image;
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}
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RTM_EXPORT(rtgui_button_set_unpressed_image);
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void rtgui_button_set_onbutton(rtgui_button_t* btn, rtgui_onbutton_func_t func)
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{
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RT_ASSERT(btn != RT_NULL);
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btn->on_button = func;
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}
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RTM_EXPORT(rtgui_button_set_onbutton);
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