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
|
/*
* 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/label.h
* @brief GWIN label widget header file.
*
* @defgroup Label Label
* @ingroup GWIN
*
* @{
*/
#include "gfx.h"
#if GFX_USE_GWIN && GWIN_NEED_LABEL
#include "gwin/class_gwin.h"
// macros to assist in data type conversions
#define gh2obj ((GLabelObject *)gh)
// flags for the GLabelObject
#define GLABEL_FLG_WAUTO (GWIN_FIRST_CONTROL_FLAG << 0)
#define GLABEL_FLG_HAUTO (GWIN_FIRST_CONTROL_FLAG << 1)
#define GLABEL_FLG_BORDER (GWIN_FIRST_CONTROL_FLAG << 2)
// simple: single line with no wrapping
static coord_t getwidth(const char *text, font_t font, coord_t maxwidth) {
(void) maxwidth;
return gdispGetStringWidth(text, font)+2; // Allow one pixel of padding on each side
}
// simple: single line with no wrapping
static coord_t getheight(const char *text, font_t font, coord_t maxwidth) {
(void) text;
(void) maxwidth;
return gdispGetFontMetric(font, fontHeight);
}
static void gwinLabelDefaultDraw(GWidgetObject *gw, void *param) {
coord_t w, h;
(void) param;
w = (gw->g.flags & GLABEL_FLG_WAUTO) ? getwidth(gw->text, gw->g.font, gdispGGetWidth(gw->g.display) - gw->g.x) : gw->g.width;
h = (gw->g.flags & GLABEL_FLG_HAUTO) ? getheight(gw->text, gw->g.font, gdispGGetWidth(gw->g.display) - gw->g.x) : gw->g.height;
if (gw->g.width != w || gw->g.height != h) {
gwinResize(&gw->g, w, h);
return;
}
// render the text
gdispGFillStringBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, gw->text, gw->g.font,
(gw->g.flags & GWIN_FLG_ENABLED) ? gw->pstyle->enabled.text : gw->pstyle->disabled.text, gw->pstyle->background,
justifyLeft);
// render the border (if any)
if (gw->g.flags & GLABEL_FLG_BORDER)
gdispGDrawBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, (gw->g.flags & GWIN_FLG_ENABLED) ? gw->pstyle->enabled.edge : gw->pstyle->disabled.edge);
}
static const gwidgetVMT labelVMT = {
{
"Label", // The class name
sizeof(GLabelObject), // The object size
_gwidgetDestroy, // The destroy routine
_gwidgetRedraw, // The redraw routine
0, // The after-clear routine
},
gwinLabelDefaultDraw, // default drawing routine
#if GINPUT_NEED_MOUSE
{
0, // Process mose down events (NOT USED)
0, // Process mouse up events (NOT USED)
0, // Process mouse move events (NOT USED)
},
#endif
#if GINPUT_NEED_TOGGLE
{
0, // No toggle role
0, // Assign Toggles (NOT USED)
0, // Get Toggles (NOT USED)
0, // Process toggle off event (NOT USED)
0, // Process toggle on event (NOT USED)
},
#endif
#if GINPUT_NEED_DIAL
{
0, // No dial roles
0, // Assign Dials (NOT USED)
0, // Get Dials (NOT USED)
0, // Procees dial move events (NOT USED)
},
#endif
};
GHandle gwinGLabelCreate(GDisplay *g, GLabelObject *widget, GWidgetInit *pInit) {
uint16_t flags = 0;
// auto assign width
if (pInit->g.width <= 0) {
flags |= GLABEL_FLG_WAUTO;
pInit->g.width = getwidth(pInit->text, gwinGetDefaultFont(), gdispGGetWidth(g) - pInit->g.x);
}
// auto assign height
if (pInit->g.height <= 0) {
flags |= GLABEL_FLG_HAUTO;
pInit->g.height = getheight(pInit->text, gwinGetDefaultFont(), gdispGGetWidth(g) - pInit->g.x);
}
if (!(widget = (GLabelObject *)_gwidgetCreate(g, &widget->w, pInit, &labelVMT)))
return 0;
// no borders by default
flags &=~ GLABEL_FLG_BORDER;
widget->w.g.flags |= flags;
gwinSetVisible(&widget->w.g, pInit->g.show);
return (GHandle)widget;
}
void gwinLabelSetBorder(GHandle gh, bool_t border) {
// is it a valid handle?
if (gh->vmt != (gwinVMT *)&labelVMT)
return;
if (border)
gh2obj->w.g.flags |= GLABEL_FLG_BORDER;
else
gh2obj->w.g.flags &=~ GLABEL_FLG_BORDER;
}
#endif // GFX_USE_GWIN && GFX_NEED_LABEL
/** @} */
|
