Merge branch 'master' into freertos

1 files changed, 142 insertions, 0 deletions

diff --git a/src/gwin/radio.h b/src/gwin/radio.h
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+/*
+ * This file is subject to the terms of the GFX License. If a copy of
+ * the license was not distributed with this file, you can obtain one at:
+ *
+ *              http://ugfx.org/license.html
+ */
+
+/**
+ * @file    include/gwin/radio.h
+ * @brief   GWIN Graphic window subsystem header file.
+ *
+ * @defgroup RadioButton RadioButton
+ * @ingroup GWIN
+ *
+ * @details		GWIN allows it to easily create radio buttons with different styles.
+ *
+ * @pre			GFX_USE_GWIN must be set to TRUE in your gfxconf.h
+ * @pre			GWIN_NEED_RADIO must be set to TRUE in your gfxconf.h
+ * @{
+ */
+
+#ifndef _GWIN_RADIO_H
+#define _GWIN_RADIO_H
+
+/* This file is included within "gwin/gwidget.h" */
+
+/**
+ * @brief	The Event Type for a Radio Event
+ */
+#define GEVENT_GWIN_RADIO		(GEVENT_GWIN_FIRST+3)
+
+/**
+ * @brief	A Button Event
+ * @note	There are currently no GEventGWinRadio listening flags - use 0 as the flags to @p gwinAttachListener()
+ */
+typedef struct GEventGWinRadio {
+	GEventType		type;				// The type of this event (GEVENT_GWIN_RADIO)
+	GHandle			radio;				// The radio button that has been depressed
+	uint16_t		group;				// The group for this radio button
+} GEventGWinRadio;
+
+/**
+ * @brief	The radio button widget structure
+ * @note	Do not use the members directly - treat it as a black-box.
+ */
+typedef struct GRadioObject {
+	GWidgetObject		w;
+	#if GINPUT_NEED_TOGGLE
+		uint16_t		toggle;
+	#endif
+	uint16_t			group;
+} GRadioObject;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Create a radio widget.
+ * @return  NULL if there is no resultant drawing area, otherwise a window handle.
+ *
+ * @param[in] g			The GDisplay to display this window on
+ * @param[in] gb		The GRadioObject structure to initialise. If this is NULL the structure is dynamically allocated.
+ * @param[in] pInit		The initialisation parameters
+ * @param[in] group		The group of radio buttons this radio button belongs to.
+ *
+ * @note				Only one radio button in any group is ever pressed at one time. Pressing one radio button will
+ * 						release all others in the group.
+ * @note				The drawing color and the background color get set to the current defaults. If you haven't called
+ * 						@p gwinSetDefaultColor() or @p gwinSetDefaultBgColor() then these are White and Black respectively.
+ * @note				The font gets set to the current default font. If you haven't called @p gwinSetDefaultFont() then there
+ * 						is no default font and text drawing operations will no nothing.
+ * @note				A radio button remembers its normal drawing state. If there is a window manager then it is automatically
+ * 						redrawn if the window is moved or its visibility state is changed.
+ * @note				A radio button supports mouse and a toggle input.
+ * @note				When assigning a toggle, only one toggle is supported. If you try to assign more than one toggle it will
+ * 						forget the previous toggle. When assigning a toggle the role parameter must be 0.
+ *
+ * @api
+ */	
+GHandle gwinGRadioCreate(GDisplay *g, GRadioObject *gb, const GWidgetInit *pInit, uint16_t group);
+#define gwinRadioCreate(w, pInit, gr)			gwinGRadioCreate(GDISP, w, pInit, gr)
+
+/**
+ * @brief	Press this radio button (and by definition unset any others in the group)
+ *
+ * @param[in] gh	The window handle (must be a radio widget)
+ *
+ * @api
+ */
+void gwinRadioPress(GHandle gh);
+
+/**
+ * @brief	Is the radio button currently pressed
+ * @return	TRUE if the button is pressed
+ *
+ * @param[in] gh	The window handle (must be a radio widget)
+ *
+ * @api
+ */
+bool_t gwinRadioIsPressed(GHandle gh);
+
+/**
+ * @brief	Find the currently pressed radio button in the specified group
+ * @return	The handle of the pressed radio button or NULL if none are pressed
+ *
+ * @param[in] group		The radio button group to be examined
+ *
+ * @return	The handle of the currently pressed radio button
+ *
+ * @api
+ */
+GHandle gwinRadioGetActive(uint16_t group);
+
+/**
+ * @brief	Some custom radio button drawing routines
+ * @details	These function may be passed to @p gwinSetCustomDraw() to get different radio button drawing styles
+ *
+ * @param[in] gw		The widget object (in this case a radio button)
+ * @param[in] param		A parameter passed in from the user
+ *
+ * @note				In your custom radio drawing function you may optionally call these
+ * 						standard functions and then draw your extra details on top.
+ * @note				The standard functions below ignore the param parameter.
+ * @note				These custom drawing routines don't have to worry about setting clipping as the framework
+ * 						sets clipping to the object window prior to calling these routines.
+ *
+ * @api
+ * @{
+ */
+void gwinRadioDraw_Radio(GWidgetObject *gw, void *param);					// @< A standard radio button
+void gwinRadioDraw_Button(GWidgetObject *gw, void *param);					// @< Draw as a button
+void gwinRadioDraw_Tab(GWidgetObject *gw, void *param);						// @< Draw as a tab
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _GWIN_RADIO_H */
+/** @} */
+