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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
/*
* 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/slider.h
* @brief GWIN Graphic window subsystem header file.
*
* @defgroup Slider Slider
* @ingroup GWIN
*
* @details Create sliders with different styles
*
* @pre GFX_USE_GWIN must be set to TRUE in your gfxconf.h
* @pre GWIN_NEED_SLIDER must be set to TRUE in your gfxconf.h
* @{
*/
#ifndef _GWIN_SLIDER_H
#define _GWIN_SLIDER_H
#if GWIN_NEED_SLIDER || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver constants. */
/*===========================================================================*/
#define GW_SLIDER 0x0004
#define GEVENT_GWIN_SLIDER (GEVENT_GWIN_FIRST+1)
/*===========================================================================*/
/* Type definitions */
/*===========================================================================*/
typedef struct GEventGWinSlider_t {
GEventType type; // The type of this event (GEVENT_GWIN_BUTTON)
GHandle slider; // The slider that is returning results
int position;
} GEventGWinSlider;
// There are currently no GEventGWinSlider listening flags - use 0
typedef struct GSliderDrawStyle_t {
color_t color_edge;
color_t color_thumb;
color_t color_active;
color_t color_inactive;
} GSliderDrawStyle;
typedef void (*GSliderDrawFunction)(GHandle gh, bool_t isVertical, coord_t thumbpos, const GSliderDrawStyle *pstyle, void *param);
// A slider window
typedef struct GSliderObject_t {
GWindowObject gwin;
GSliderDrawStyle style;
bool_t tracking;
int min;
int max;
int pos;
GSliderDrawFunction fn;
void *param;
GListener listener;
} GSliderObject;
/*===========================================================================*/
/* External declarations. */
/*===========================================================================*/
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Create a slider window.
* @return NULL if there is no resultant drawing area, otherwise a window handle.
*
* @param[in] gb The GSliderObject structure to initialise. If this is NULL the structure is dynamically allocated.
* @param[in] x,y The screen co-ordinates for the bottom 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 gets set to White and the background drawing color to Black.
* @note The dimensions and position may be changed to fit on the real screen.
* @note The slider is not automatically drawn. Call gwinSliderDraw() after changing the slider style.
* @note Sets the slider range from 0 to 100 with an initial position of 0
*
* @api
*/
GHandle gwinCreateSlider(GSliderObject *gb, coord_t x, coord_t y, coord_t width, coord_t height);
/**
* @brief Set the slider range.
*
* @param[in] gh The window handle (must be a slider window)
* @param[in] min The minimum value
* @param[in] max The maximum value
* @note Sets the position to the minimum value.
* @note The slider is not automatically drawn. Call gwinSliderDraw() after changing the range.
*
* @api
*/
void gwinSetSliderRange(GHandle gh, int min, int max);
/**
* @brief Set the slider position.
*
* @param[in] gh The window handle (must be a slider window)
* @param[in] pos The new position
* @note If the new position is outside the slider range then the position
* is set to the closest end of the range.
* @note The slider is not automatically drawn. Call gwinSliderDraw() after changing the position.
*
* @api
*/
void gwinSetSliderPosition(GHandle gh, int pos);
/**
* @brief Set the style of a slider.
* @details The slider style is defined by its colours.
*
* @param[in] gh The window handle (must be a slider window)
* @param[in] pStyle The styling for the slider.
*
* @note The slider is not automatically redrawn. Call gwinSliderDraw() after changing the slider style
* @note The slider style is copied into the internal slider structure - there is no need to
* maintain a static style structure.
*
* @api
*/
void gwinSetSliderStyle(GHandle gh, const GSliderDrawStyle *pStyle);
/**
* @brief Redraw the slider.
*
* @param[in] gh The window handle (must be a slider window)
*
* @api
*/
void gwinSliderDraw(GHandle gh);
/**
* @brief Enable or disable a button
*
* @param[in] gh The window handle (must be a slider window)
* @param[in] enabled Enable or disable the slider
*
* @api
*/
void gwinSliderSetEnabled(GHandle gh, bool_t enabled);
/**
* @brief Set the callback routine to perform a custom slider drawing.
*
* @param[in] gh The window handle (must be a slider window)
* @param[in] fn The function to use to draw the slider
* @param[in] param A parameter to pass to the slider drawing function
*
* @api
*/
void gwinSetSliderCustom(GHandle gh, GSliderDrawFunction fn, void *param);
/**
* @brief Enable a slider
*
* @api
*/
#define gwinEnableSlider(gh) gwinSliderSetEnabled( ((GSliderObject *)(gh)), TRUE)
/**
* @brief Disable a slider
*
* @api
*/
#define gwinDisableSlider(gh) gwinSliderSetEnabled( ((GSliderObject *)(gh)), FALSE)
/**
* @brief Get the current slider position.
* @return The slider position
*
* @param[in] gh The window handle (must be a slider window)
*
* @note The use of a listener to get the slider position is recommended if you
* want continuous updates on the slider position.
*
* @api
*/
#define gwinGetSliderPosition(gh) (((GSliderObject *)(gh))->pos)
/**
* @brief Get the source handle of a slider
* @details Get the source handle of a slider so the application can listen for events
*
* @param[in] gh The window handle
*
* @api
*/
#define gwinGetSliderSource(gh) ((GSourceHandle)(gh))
#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
/**
* @brief Attach a mouse source
* @details Attach a mouse to a slider
*
* @param[in] gh The slider handle
* @param[in] instance The mouse instance
*
* @api
*/
bool_t gwinAttachSliderMouse(GHandle gh, uint16_t instance);
#endif
#if GFX_USE_GINPUT && GINPUT_NEED_DIAL
/**
* @brief Attach a dial source
* @details Attach a dial to a slider
*
* @param[in] gh The dial handle
* @param[in] instance The dial instance
*
* @api
*/
bool_t gwinAttachSliderDial(GHandle gh, uint16_t instance);
#endif
/**
* @brief Standard slider drawing routines
* @details This routine is called to draw the standard slider.
*
* @param[in] gh The slider handle
* @param[in] isVertical The slider is vertically oriented instead of horizontal
* @param[in] thumbpos The position of the slider (0..cx-1 or cy-1..0)
* @param[in] pstyle The current drawing style
* @param[in] param A parameter passed in from the user
*
* @note In your custom slider drawing function you may optionally call this
* standard functions and then draw your extra details on top.
* @note The standard functions below ignore the param parameter. It is there
* only to ensure the functions match the GSliderDrawFunction type.
* @note When called by a slider the framework ensure that it is
* a slider object and sets up clipping to the slider object window. These
* drawing routines then don't have to worry about explicitly doing that.
*
* @api
*/
void gwinSliderDraw_Std(GHandle gh, bool_t isVertical, coord_t thumbpos, const GSliderDrawStyle *pstyle, void *param);
#ifdef __cplusplus
}
#endif
#endif /* GWIN_NEED_SLIDER */
#endif /* _GWIN_SLIDER_H */
/** @} */
|
