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Adding rendering functions to label widget to control text justification

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This commit is contained in:
Joel Bodenmann 2015-11-07 00:51:23 +01:00
parent ea4cadec78
commit 5d81aa2487
2 changed files with 53 additions and 14 deletions
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41
src/gwin/gwin_label.c
View file

@ -42,13 +42,13 @@ static coord_t getheight(const char *text, font_t font, coord_t maxwidth) {
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
"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
gwinLabelDrawJustifiedLeft, // default drawing routine
#if GINPUT_NEED_MOUSE
{
0, // Process mose down events (NOT USED)
@ -134,10 +134,9 @@ void gwinLabelSetBorder(GHandle gh, bool_t border) {
}
#endif // GWIN_LABEL_ATTRIBUTE
void gwinLabelDefaultDraw(GWidgetObject *gw, void *param) {
static void gwinLabelDraw(GWidgetObject *gw, justify_t justify) {
coord_t w, h;
color_t c;
(void) param;
// is it a valid handle?
if (gw->g.vmt != (gwinVMT *)&labelVMT)
@ -163,12 +162,12 @@ void gwinLabelDefaultDraw(GWidgetObject *gw, void *param) {
#if GWIN_LABEL_ATTRIBUTE
if (gw2obj->attr) {
gdispGFillStringBox(gw->g.display, gw->g.x, gw->g.y, gw2obj->tab, h, gw2obj->attr, gw->g.font, c, gw->pstyle->background, justifyLeft);
gdispGFillStringBox(gw->g.display, gw->g.x + gw2obj->tab, gw->g.y, w-gw2obj->tab, h, gw->text, gw->g.font, c, gw->pstyle->background, justifyLeft);
gdispGFillStringBox(gw->g.display, gw->g.x, gw->g.y, gw2obj->tab, h, gw2obj->attr, gw->g.font, c, gw->pstyle->background, justify);
gdispGFillStringBox(gw->g.display, gw->g.x + gw2obj->tab, gw->g.y, w-gw2obj->tab, h, gw->text, gw->g.font, c, gw->pstyle->background, justify);
} else
gdispGFillStringBox(gw->g.display, gw->g.x, gw->g.y, w, h, gw->text, gw->g.font, c, gw->pstyle->background, justifyLeft);
gdispGFillStringBox(gw->g.display, gw->g.x, gw->g.y, w, h, gw->text, gw->g.font, c, gw->pstyle->background, justify);
#else
gdispGFillStringBox(gw->g.display, gw->g.x, gw->g.y, w, h, gw->text, gw->g.font, c, gw->pstyle->background, justifyLeft);
gdispGFillStringBox(gw->g.display, gw->g.x, gw->g.y, w, h, gw->text, gw->g.font, c, gw->pstyle->background, justify);
#endif
// render the border (if any)
@ -176,6 +175,24 @@ void gwinLabelDefaultDraw(GWidgetObject *gw, void *param) {
gdispGDrawBox(gw->g.display, gw->g.x, gw->g.y, w, h, (gw->g.flags & GWIN_FLG_SYSENABLED) ? gw->pstyle->enabled.edge : gw->pstyle->disabled.edge);
}
void gwinLabelDrawJustifiedLeft(GWidgetObject *gw, void *param) {
(void)param;
gwinLabelDraw(gw, justifyLeft);
}
void gwinLabelDrawJustifiedRight(GWidgetObject *gw, void *param) {
(void)param;
gwinLabelDraw(gw, justifyRight);
}
void gwinLabelDrawJustifiedCenter(GWidgetObject *gw, void *param) {
(void)param;
gwinLabelDraw(gw, justifyCenter);
}
#undef gh2obj
#undef gw2obj
#endif // GFX_USE_GWIN && GFX_NEED_LABEL

26
src/gwin/gwin_label.h
View file

@ -117,14 +117,36 @@ void gwinLabelSetBorder(GHandle gh, bool_t border);
*/
/**
* @brief The default rendering function for the label widget
* @brief Renders a label with the text left jestified.
*
* @note This is the default rendering function.
*
* @param[in] gw The widget object (must be a label object)
* @param[in] param A parameter passed in from the user. Ignored by this function.
*
* @api
*/
void gwinLabelDefaultDraw(GWidgetObject *gw, void *param);
void gwinLabelDrawJustifiedLeft(GWidgetObject *gw, void *param);
/**
* @brief Renders a label with the text right jestified.
*
* @param[in] gw The widget object (must be a label object)
* @param[in] param A parameter passed in from the user. Ignored by this function.
*
* @api
*/
void gwinLabelDrawJustifiedRight(GWidgetObject *gw, void *param);
/**
* @brief Renders a label with the text center jestified.
*
* @param[in] gw The widget object (must be a label object)
* @param[in] param A parameter passed in from the user. Ignored by this function.
*
* @api
*/
void gwinLabelDrawJustifiedCenter(GWidgetObject *gw, void *param);
/** @} */