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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/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"
#define GLABEL_FLG_WAUTO (GWIN_FIRST_CONTROL_FLAG<<0)
#define GLABEL_FLG_HAUTO (GWIN_FIRST_CONTROL_FLAG<<1)
// 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, gdispGetWidth() - gw->g.x) : gw->g.width;
h = (gw->g.flags & GLABEL_FLG_HAUTO) ? getheight(gw->text, gw->g.font, gdispGetWidth() - gw->g.x) : gw->g.height;
if (gw->g.width != w || gw->g.height != h) {
gwinResize(&gw->g, w, h);
return;
}
gdispFillStringBox(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);
}
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 gwinLabelCreate(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(), gdispGetWidth() - pInit->g.x);
}
// auto assign height
if (pInit->g.height <= 0) {
flags |= GLABEL_FLG_HAUTO;
pInit->g.height = getheight(pInit->text, gwinGetDefaultFont(), gdispGetWidth() - pInit->g.x);
}
if (!(widget = (GLabelObject *)_gwidgetCreate(&widget->w, pInit, &labelVMT)))
return 0;
widget->w.g.flags |= flags;
gwinSetVisible(&widget->w.g, pInit->g.show);
return (GHandle)widget;
}
#endif // GFX_USE_GWIN && GFX_NEED_LABEL
/** @} */
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