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
|
/*
* 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/list.h
* @brief GWIN list widget header file.
*
* @defgroup List List
* @ingroup GWIN
*
* @{
*/
#include "gfx.h"
#if GFX_USE_GWIN && GWIN_NEED_LIST
#include "gwin/class_gwin.h"
#include <string.h>
#define widget(gh) ((GListObject *)gh)
#define GLIST_FLG_MULTISELECT (GWIN_FIRST_CONTROL_FLAG << 0)
#define GLIST_FLG_HASIMAGES (GWIN_FIRST_CONTROL_FLAG << 1)
#define GLIST_FLG_SELECTED (GWIN_FIRST_CONTROL_FLAG << 2)
/*
Use gw->pstyle->background for the unselected fill.
Use gw->pstyle->enabled/disabled->text for unselected text color
Use gw->pstyle->enabled/disabled->edge for the surounding box
Use gw->pstyle->enabled/disabled->fill for the selected text fill
or gw->pstyle->pressed->fill for the selected text fill (which ever looks best)
and use gw->pstyle->pressed->text for the selected text color
*/
typedef struct ListItem {
gfxQueueASyncItem q_item; // This must be the first member in the struct
uint16_t flags;
#define LISTITEM_ALLOCEDTEXT 0x0001
#define LISTITEM_SELECTED 0x0002
uint16_t param; // A parameter the user can specify himself
const char* text;
#if GWIN_LIST_IMAGES
gdispImage* pimg;
#endif
} ListItem;
static void sendListEvent(GWidgetObject *gw, int item) {
GSourceListener* psl;
GEvent* pe;
#define pse ((GEventGWinList *)pe)
// Trigger a GWIN list event
psl = 0;
while ((psl = geventGetSourceListener(GWIDGET_SOURCE, psl))) {
if (!(pe = geventGetEventBuffer(psl)))
continue;
pse->type = GEVENT_GWIN_LIST;
pse->list = (GHandle)gw;
pse->item = item;
geventSendEvent(psl);
}
#undef pse
}
static void gwinListDefaultDraw(GWidgetObject* gw, void* param) {
#define gcw ((GListObject *)gw)
(void)param;
uint16_t i, fheight;
const gfxQueueASyncItem* qi;
fheight = gdispGetFontMetric(gwinGetDefaultFont(), fontHeight);
gdispDrawBox(gw->g.x, gw->g.y, gw->g.width, gw->g.height, Black);
for (qi = gfxQueueASyncPeek(&gcw->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i += fheight + 4) {
if (((ListItem*)qi)->flags & GLIST_FLG_SELECTED)
gdispFillStringBox(gw->g.x + 3, gw->g.y + 3 + i, gw->g.width - 6, fheight, ((ListItem*)qi)->text, gwinGetDefaultFont(), White, Black, justifyLeft);
else
gdispFillStringBox(gw->g.x + 3, gw->g.y + 3 + i, gw->g.width - 6, fheight, ((ListItem*)qi)->text, gwinGetDefaultFont(), Black, White, justifyLeft);
}
#undef gcw
}
#if GINPUT_NEED_MOUSE
// A mouse down has occured over the list area
static void MouseDown(GWidgetObject* gw, coord_t x, coord_t y) {
#define gcw ((GListObject *)gw)
#define li ((ListItem *)qi)
(void) x;
uint16_t i, item_id, item_height;
const gfxQueueASyncItem* qi;
item_height = gdispGetFontMetric(gwinGetDefaultFont(), fontHeight) + 2;
item_id = (y - gw->g.y) / item_height;
for(qi = gfxQueueASyncPeek(&gcw->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i++) {
if (item_id == i)
li->flags |= GLIST_FLG_SELECTED;
else
li->flags &=~ GLIST_FLG_SELECTED;
}
_gwidgetRedraw((GHandle)gw);
sendListEvent(gw, item_id);
#undef gcw
#undef li
}
#endif
static void _destroy(GHandle gh) {
const gfxQueueASyncItem* qi;
while((qi = gfxQueueASyncGet(&((GListObject *)gh)->list_head)))
gfxFree((void *)qi);
_gwidgetDestroy(gh);
}
static const gwidgetVMT listVMT = {
{
"List", // The class name
sizeof(GListObject), // The object size
_destroy, // The destroy routine
_gwidgetRedraw, // The redraw routine
0, // The after-clear routine
},
gwinListDefaultDraw, // default drawing routine
#if GINPUT_NEED_MOUSE
{
MouseDown,
0,
0,
},
#endif
#if GINPUT_NEED_TOGGLE
{
0,
0,
0,
0,
0,
},
#endif
#if GINPUT_NEED_DIAL
{
0,
0,
0,
0,
},
#endif
};
GHandle gwinListCreate(GListObject* widget, GWidgetInit* pInit) {
if (!(widget = (GListObject *)_gwidgetCreate(&widget->w, pInit, &listVMT)))
return 0;
// initialize the item queue
gfxQueueASyncInit(&(widget->list_head));
widget->cnt = 0;
gwinSetVisible(&widget->w.g, pInit->g.show);
return (GHandle)widget;
}
int gwinListAddItem(GHandle gh, const char* item_name, bool_t useAlloc) {
size_t sz;
ListItem *newItem;
sz = useAlloc ? sizeof(ListItem)+strlen(item_name)+1 : sizeof(ListItem);
if (!(newItem = (ListItem *)gfxAlloc(sz)))
return -1;
if (useAlloc) {
strcpy((char *)(newItem+1), item_name);
item_name = (const char *)(newItem+1);
}
// the item is not selected when added
newItem->flags = 0;
newItem->param = 0;
newItem->text = item_name;
// add the new item to the list
gfxQueueASyncPut(&widget(gh)->list_head, &newItem->q_item);
// increment the total amount of entries in the list widget
widget(gh)->cnt++;
return widget(gh)->cnt-1;
}
int gwinListGetSelected(GHandle gh) {
const gfxQueueASyncItem *qi;
int i;
if (gh->vmt != (gwinVMT *)&listVMT)
return -1;
for(qi = gfxQueueASyncPeek(&widget(gh)->list_head), i = 0; qi; qi = gfxQueueASyncNext(qi), i++) {
if (((ListItem*)qi)->flags & GLIST_FLG_SELECTED)
return i;
}
return -1;
}
#endif // GFX_USE_GWIN && GWIN_NEED_LIST
/** @} */
|
