add rtgui_win subfield,Highlight the ease of use

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1345 bbd45198-f89e-11dd-88c7-29a3b14d5316

1 files changed, 238 insertions, 0 deletions

diff --git a/components/rtgui_win/widgets/button.c b/components/rtgui_win/widgets/button.c
new file mode 100644
index 0000000000..93e6863869
--- /dev/null
+++ b/components/rtgui_win/widgets/button.c
@@ -0,0 +1,238 @@
+/*
+ * File      : button.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/button.h>

+#include <rtgui/widgets/container.h>
+#include <rtgui/rtgui_theme.h>

+
+static rt_bool_t rtgui_button_onunfocus(PVOID wdt, rtgui_event_t* event);

+
+static void _rtgui_button_constructor(rtgui_button_t *button)
+{
+	/* init widget and set event handler */
+	RTGUI_WIDGET_FLAG(button) |= RTGUI_WIDGET_FLAG_FOCUSABLE;

+	
+	rtgui_widget_set_event_handler(button, rtgui_button_event_handler);
+	rtgui_widget_set_onunfocus(button, rtgui_button_onunfocus);
+	/* un-press button */
+	button->flag = 0;

+	rtgui_widget_set_style(button,RTGUI_BORDER_UP);
+
+	/* set flag and on_button event handler */
+	button->image = RT_NULL;
+	button->on_button = RT_NULL;
+
+	/* set gc */
+	RTGUI_WIDGET_FOREGROUND(button) = default_foreground;
+	RTGUI_WIDGET_BACKGROUND(button) = default_background;

+	RTGUI_WIDGET_TEXTALIGN(button) = RTGUI_ALIGN_CENTER_HORIZONTAL|RTGUI_ALIGN_CENTER_VERTICAL;
+}
+
+static void _rtgui_button_destructor(rtgui_button_t *button)
+{
+	if(button->image != RT_NULL)
+	{
+		rtgui_image_destroy(button->image);
+		button->image = RT_NULL;
+	}
+}
+
+rtgui_type_t *rtgui_button_type_get(void)
+{
+	static rtgui_type_t *button_type = RT_NULL;
+
+	if(!button_type)
+	{
+		button_type = rtgui_type_create("button", RTGUI_LABEL_TYPE,
+			sizeof(rtgui_button_t), 
+			RTGUI_CONSTRUCTOR(_rtgui_button_constructor), 
+			RTGUI_DESTRUCTOR(_rtgui_button_destructor));
+	}
+
+	return button_type;
+}

+
+rtgui_button_t* rtgui_button_create(PVOID parent, char* text,int left, int top, int w, int h)
+{
+    rtgui_button_t* btn;

+
+	RT_ASSERT(parent != RT_NULL);

+
+    btn = rtgui_widget_create(RTGUI_BUTTON_TYPE);
+    if(btn != RT_NULL)
+    {
+		rtgui_rect_t rect;
+		/* set default rect */
+		rtgui_font_get_string_rect(RTGUI_WIDGET_FONT(btn), text, &rect);
+		

+		rtgui_label_set_text(RTGUI_LABEL(btn), text);

+

+		rtgui_widget_get_rect(parent, &rect);

+		rtgui_widget_rect_to_device(parent,&rect);

+		rect.x1 += left;

+		rect.y1 += top;

+		rect.x2 = rect.x1+w;

+		rect.y2 = rect.y1+h;
+		rtgui_widget_set_rect(btn, &rect);

+		

+		rtgui_container_add_child(parent, btn);
+    }
+	
+    return btn;
+}
+
+void rtgui_button_destroy(rtgui_button_t* btn)
+{
+	rtgui_widget_destroy(btn);
+}

+
+rt_bool_t rtgui_button_event_handler(PVOID wdt, rtgui_event_t* event)
+{
+	rtgui_widget_t *widget = (rtgui_widget_t*)wdt;

+	rtgui_button_t* btn = (rtgui_button_t*) widget;

+	
+	if(btn == RT_NULL)return RT_FALSE;
+
+	switch (event->type)
+	{
+		case RTGUI_EVENT_PAINT:		
+			if(widget->on_draw != RT_NULL ) 

+				widget->on_draw(widget, event);
+			else			
+				rtgui_theme_draw_button(btn);
+			break;
+	
+		case RTGUI_EVENT_KBD:
+			{
+				rtgui_event_kbd_t* ekbd = (rtgui_event_kbd_t*) event;
+	
+				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(widget, event);
+					}
+				}
+			}
+			break;
+	
+		case RTGUI_EVENT_MOUSE_BUTTON:
+			{
+				rtgui_event_mouse_t* emouse = (rtgui_event_mouse_t*)event;
+				
+				if(emouse->button & RTGUI_MOUSE_BUTTON_LEFT)
+				{	

+					rtgui_widget_focus(widget);

+					/* 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 */					
+					if(widget->on_draw != RT_NULL ) 

+						widget->on_draw(widget, event);
+					else

+					{	
+						rtgui_theme_draw_button(btn);

+					}
+	
+					/* invokes call back */
+					if(widget->on_mouseclick != RT_NULL && emouse->button & RTGUI_MOUSE_BUTTON_UP)
+						return widget->on_mouseclick(widget, event);
+	
+					if(!(btn->flag & RTGUI_BUTTON_FLAG_PRESS) && (btn->on_button != RT_NULL))
+					{
+						/* call on button handler */
+						btn->on_button(widget, event);
+					}
+				}
+	
+				return RT_TRUE;
+			}

+		default:

+			break;
+	}
+
+	return RT_FALSE;
+}
+
+void rtgui_button_set_image(rtgui_button_t* btn, rtgui_image_t* image)
+{
+	if(btn == RT_NULL)return;
+
+	btn->image = image;
+}
+
+void rtgui_button_set_onbutton(rtgui_button_t* btn, rtgui_onbutton_func_t func)
+{
+	RT_ASSERT(btn != RT_NULL);
+
+	btn->on_button = func;
+}

+
+static rt_bool_t rtgui_button_onunfocus(PVOID wdt, rtgui_event_t* event)

+{

+	rtgui_rect_t rect;

+	rtgui_button_t *btn = (rtgui_button_t*)wdt;

+	rtgui_dc_t *dc;

+

+	RT_ASSERT(wdt != RT_NULL);

+

+	dc = rtgui_dc_begin_drawing(wdt);

+	if(dc == RT_NULL)return RT_FALSE;

+
+	rtgui_widget_get_rect(btn, &rect);

+

+	if(!RTGUI_WIDGET_IS_FOCUSED(btn))
+	{//��������

+		rtgui_color_t color;
+		rtgui_rect_inflate(&rect, -2);

+		color = RTGUI_DC_FC(dc);
+		RTGUI_DC_FC(dc) = RTGUI_DC_BC(dc);
+		rtgui_dc_draw_focus_rect(dc,&rect);

+		RTGUI_DC_FC(dc) = color;
+	}

+

+	rtgui_dc_end_drawing(dc);

+
+	return RT_TRUE;

+}

+

+void rtgui_button_set_text(rtgui_button_t* btn, const char* text)
+{
+	if(btn == RT_NULL)return;

+

+	rtgui_label_set_text(RTGUI_LABEL(btn), text);
+
+	/* update widget */
+	rtgui_theme_draw_button(btn);
+}