1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* 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://chibios-gfx.com/license.html
*/
/**
* @file include/gwin/button.h
* @brief GWIN Graphic window subsystem header file.
*
* @defgroup Button Button
* @ingroup GWIN
*
* @details GWIN allows it to easily create buttons with different styles
* and check for different meta states such as: PRESSED, CLICKED,
* RELEASED etc.
*
* @pre GFX_USE_GWIN must be set to TRUE in your gfxconf.h
* @pre GWIN_NEED_BUTTON must be set to TRUE in your gfxconf.h
* @{
*/
#ifndef _GWIN_BUTTON_H
#define _GWIN_BUTTON_H
/* This file is included within "gwin/gwidget.h" */
/**
* @brief The Event Type for a Button Event
*/
#define GEVENT_GWIN_BUTTON (GEVENT_GWIN_FIRST+0)
/**
* @brief A Button Event
* @note There are currently no GEventGWinButton listening flags - use 0 as the flags to @p gwinAttachListener()
*/
typedef struct GEventGWinButton {
GEventType type; // The type of this event (GEVENT_GWIN_BUTTON)
GHandle button; // The button that has been depressed (actually triggered on release)
} GEventGWinButton;
/**
* @brief Button colors
*/
typedef struct GButtonColors {
color_t color_edge;
color_t color_fill;
color_t color_txt;
} GButtonColors;
/**
* @brief The button widget structure
* @note Do not use the members directly - treat it as a black-box.
*/
typedef struct GButtonObject_t {
GWidgetObject w;
uint16_t toggle;
GButtonColors c_up;
GButtonColors c_dn;
GButtonColors c_dis;
} GButtonObject;
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Create a button widget.
* @return NULL if there is no resultant drawing area, otherwise a window handle.
*
* @param[in] gb The GButtonObject structure to initialise. If this is NULL the structure is dynamically allocated.
* @param[in] x,y The screen co-ordinates for the top left corner of the window
* @param[in] width The width of the window
* @param[in] height The height of the window
*
* @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 The dimensions and position may be changed to fit on the real screen.
* @note A 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 The button is initially marked as invisible so that more properties can be set before display.
* Call @p gwinSetVisible() to display it when ready.
* @note A 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 gwinCreateButton(GButtonObject *gb, coord_t x, coord_t y, coord_t width, coord_t height);
/**
* @brief Set the colors of a button.
*
* @param[in] gh The window handle (must be a button widget)
* @param[in] pUp The colors for the button when in the up state.
* @param[in] pDown The colors for the button when in the down state.
* @param[in] pDisabled The colors for the button when it is disabled.
*
* @note The button is not automatically redrawn. Call gwinButtonDraw() after changing the button style
* @note The button style is copied into the internal button structure - there is no need to
* maintain static style structures (they can be temporary structures on the stack).
* @note The pUp, pDown and pDisabled parameters can be NULL. If they are then the existing color styles
* are not changed for that button state.
* @note Some custom drawn buttons will ignore he specified colors
*
* @api
*/
void gwinSetButtonColors(GHandle gh, const GButtonColors *pUp, const GButtonColors *pDown, const GButtonColors *pDisabled);
/**
* @brief Is the button current pressed
* @return TRUE if the button is depressed
*
* @param[in] gh The window handle (must be a button widget)
*
* @api
*/
bool_t gwinIsButtonPressed(GHandle gh);
/**
* @brief Some custom button drawing routines
* @details These function may be passed to @p gwinSetCustomDraw() to get different button drawing styles
*
* @param[in] gw The widget object (in this case a button)
* @param[in] param A parameter passed in from the user
*
* @note In your custom button 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 except for @p gwinButtonDraw_Image().
* @note The image custom draw function @p gwinButtonDraw_Image() uses param to pass in the gdispImage pointer.
* The image must be already opened before calling @p gwinSetCustomDraw(). The image should be 3
* times the height of the button. The button image is repeated 3 times vertically, the first (top) for
* the "up" image, the 2nd for the "down" image, and the third (bottom) image for the disabled state. If
* the disabled state is never going to be used then the image can be just 2 times the button height.
* No checking is done to compare the size of the button to the size of the image.
* Note text is drawn on top of the image.
* @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 gwinButtonDraw_3D(GWidgetObject *gw, void *param); // @< A standard 3D button
void gwinButtonDraw_Box(GWidgetObject *gw, void *param); // @< A very simple box style button
#if GDISP_NEED_ARC || defined(__DOXYGEN__)
void gwinButtonDraw_Rounded(GWidgetObject *gw, void *param); // @< A rounded rectangle button
#endif
#if GDISP_NEED_ELLIPSE || defined(__DOXYGEN__)
void gwinButtonDraw_Ellipse(GWidgetObject *gw, void *param); // @< A circular button
#endif
#if GDISP_NEED_CONVEX_POLYGON || defined(__DOXYGEN__)
void gwinButtonDraw_ArrowUp(GWidgetObject *gw, void *param); // @< An up arrow button
void gwinButtonDraw_ArrowDown(GWidgetObject *gw, void *param); // @< A down arrow button
void gwinButtonDraw_ArrowLeft(GWidgetObject *gw, void *param); // @< A left arrow button
void gwinButtonDraw_ArrowRight(GWidgetObject *gw, void *param); // @< A right arrow button
#endif
#if GDISP_NEED_IMAGE || defined(__DOXYGEN__)
void gwinButtonDraw_Image(GWidgetObject *gw, void *param); // @< An image button - see the notes above on the param.
#endif
/** @} */
#ifdef __cplusplus
}
#endif
#endif /* _GWIN_BUTTON_H */
/** @} */
|
