ugfx/src/gwin/button.c

328 lines
12 KiB
C

/*
* 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 src/gwin/button.c
* @brief GWIN sub-system button code.
*
* @defgroup Button Button
* @ingroup GWIN
*
* @{
*/
#include "gfx.h"
#if GFX_USE_GWIN && GWIN_NEED_BUTTON
#include "src/gwin/class_gwin.h"
// Parameters for various shapes
#define RND_CNR_SIZE 5 // Rounded corner size for rounded buttons
#define ARROWHEAD_DIVIDER 4 // A quarter of the height for the arrow head
#define ARROWBODY_DIVIDER 4 // A quarter of the width for the arrow body
// Our pressed state
#define GBUTTON_FLG_PRESSED (GWIN_FIRST_CONTROL_FLAG<<0)
// Send the button event
static void SendButtonEvent(GWidgetObject *gw) {
GSourceListener * psl;
GEvent * pe;
#define pbe ((GEventGWinButton *)pe)
// Trigger a GWIN Button Event
psl = 0;
while ((psl = geventGetSourceListener(GWIDGET_SOURCE, psl))) {
if (!(pe = geventGetEventBuffer(psl)))
continue;
pbe->type = GEVENT_GWIN_BUTTON;
pbe->button = (GHandle)gw;
geventSendEvent(psl);
}
#undef pbe
}
#if GINPUT_NEED_MOUSE
// A mouse down has occurred over the button
static void MouseDown(GWidgetObject *gw, coord_t x, coord_t y) {
(void) x; (void) y;
gw->g.flags |= GBUTTON_FLG_PRESSED;
_gwidgetRedraw((GHandle)gw);
}
// A mouse up has occurred (it may or may not be over the button)
static void MouseUp(GWidgetObject *gw, coord_t x, coord_t y) {
(void) x; (void) y;
gw->g.flags &= ~GBUTTON_FLG_PRESSED;
_gwidgetRedraw((GHandle)gw);
#if !GWIN_BUTTON_LAZY_RELEASE
// If the mouse up was not over the button then cancel the event
if (x < 0 || y < 0 || x >= gw->g.width || y >= gw->g.height)
return;
#endif
SendButtonEvent(gw);
}
#endif
#if GINPUT_NEED_TOGGLE
// A toggle off has occurred
static void ToggleOff(GWidgetObject *gw, uint16_t role) {
(void) role;
gw->g.flags &= ~GBUTTON_FLG_PRESSED;
_gwidgetRedraw((GHandle)gw);
}
// A toggle on has occurred
static void ToggleOn(GWidgetObject *gw, uint16_t role) {
(void) role;
gw->g.flags |= GBUTTON_FLG_PRESSED;
_gwidgetRedraw((GHandle)gw);
// Trigger the event on button down (different than for mouse/touch)
SendButtonEvent(gw);
}
static void ToggleAssign(GWidgetObject *gw, uint16_t role, uint16_t instance) {
(void) role;
((GButtonObject *)gw)->toggle = instance;
}
static uint16_t ToggleGet(GWidgetObject *gw, uint16_t role) {
(void) role;
return ((GButtonObject *)gw)->toggle;
}
#endif
// The button VMT table
static const gwidgetVMT buttonVMT = {
{
"Button", // The classname
sizeof(GButtonObject), // The object size
_gwidgetDestroy, // The destroy routine
_gwidgetRedraw, // The redraw routine
0, // The after-clear routine
},
gwinButtonDraw_3D, // The default drawing routine
#if GINPUT_NEED_MOUSE
{
MouseDown, // Process mouse down events
MouseUp, // Process mouse up events
0, // Process mouse move events (NOT USED)
},
#endif
#if GINPUT_NEED_TOGGLE
{
1, // 1 toggle role
ToggleAssign, // Assign Toggles
ToggleGet, // Get Toggles
ToggleOff, // Process toggle off events
ToggleOn, // Process toggle on events
},
#endif
#if GINPUT_NEED_DIAL
{
0, // No dial roles
0, // Assign Dials (NOT USED)
0, // Get Dials (NOT USED)
0, // Process dial move events (NOT USED)
},
#endif
};
GHandle gwinGButtonCreate(GDisplay *g, GButtonObject *gw, const GWidgetInit *pInit) {
if (!(gw = (GButtonObject *)_gwidgetCreate(g, &gw->w, pInit, &buttonVMT)))
return 0;
#if GINPUT_NEED_TOGGLE
gw->toggle = GWIDGET_NO_INSTANCE;
#endif
gwinSetVisible((GHandle)gw, pInit->g.show);
return (GHandle)gw;
}
bool_t gwinButtonIsPressed(GHandle gh) {
if (gh->vmt != (gwinVMT *)&buttonVMT)
return FALSE;
return (gh->flags & GBUTTON_FLG_PRESSED) ? TRUE : FALSE;
}
/*----------------------------------------------------------
* Custom Draw Routines
*----------------------------------------------------------*/
static const GColorSet *getDrawColors(GWidgetObject *gw) {
if (!(gw->g.flags & GWIN_FLG_ENABLED)) return &gw->pstyle->disabled;
if ((gw->g.flags & GBUTTON_FLG_PRESSED)) return &gw->pstyle->pressed;
return &gw->pstyle->enabled;
}
void gwinButtonDraw_3D(GWidgetObject *gw, void *param) {
const GColorSet * pcol;
(void) param;
if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
pcol = getDrawColors(gw);
gdispGFillStringBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width-1, gw->g.height-1, gw->text, gw->g.font, pcol->text, pcol->fill, justifyCenter);
gdispGDrawLine(gw->g.display, gw->g.x+gw->g.width-1, gw->g.y, gw->g.x+gw->g.width-1, gw->g.y+gw->g.height-1, pcol->edge);
gdispGDrawLine(gw->g.display, gw->g.x, gw->g.y+gw->g.height-1, gw->g.x+gw->g.width-2, gw->g.y+gw->g.height-1, pcol->edge);
}
#if GDISP_NEED_ARC
void gwinButtonDraw_Rounded(GWidgetObject *gw, void *param) {
const GColorSet * pcol;
(void) param;
if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
pcol = getDrawColors(gw);
gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, gw->pstyle->background);
if (gw->g.width >= 2*RND_CNR_SIZE+10) {
gdispGFillRoundedBox(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width-2, gw->g.height-2, RND_CNR_SIZE-1, pcol->fill);
gdispGDrawStringBox(gw->g.display, gw->g.x+1, gw->g.y+RND_CNR_SIZE, gw->g.width-2, gw->g.height-(2*RND_CNR_SIZE), gw->text, gw->g.font, pcol->text, justifyCenter);
gdispGDrawRoundedBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, RND_CNR_SIZE, pcol->edge);
} else {
gdispGFillStringBox(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width-2, gw->g.height-2, gw->text, gw->g.font, pcol->text, pcol->fill, justifyCenter);
gdispGDrawBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, pcol->edge);
}
}
#endif
#if GDISP_NEED_ELLIPSE
void gwinButtonDraw_Ellipse(GWidgetObject *gw, void *param) {
const GColorSet * pcol;
(void) param;
if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
pcol = getDrawColors(gw);
gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, gw->pstyle->background);
gdispGFillEllipse(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width/2-1, gw->g.height/2-1, pcol->fill);
gdispGDrawStringBox(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width-2, gw->g.height-2, gw->text, gw->g.font, pcol->text, justifyCenter);
gdispGDrawEllipse(gw->g.display, gw->g.x, gw->g.y, gw->g.width/2, gw->g.height/2, pcol->edge);
}
#endif
#if GDISP_NEED_CONVEX_POLYGON
void gwinButtonDraw_ArrowUp(GWidgetObject *gw, void *param) {
const GColorSet * pcol;
(void) param;
point arw[7];
if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
pcol = getDrawColors(gw);
arw[0].x = gw->g.width/2; arw[0].y = 0;
arw[1].x = gw->g.width-1; arw[1].y = gw->g.height/ARROWHEAD_DIVIDER;
arw[2].x = (gw->g.width + gw->g.width/ARROWBODY_DIVIDER)/2; arw[2].y = gw->g.height/ARROWHEAD_DIVIDER;
arw[3].x = (gw->g.width + gw->g.width/ARROWBODY_DIVIDER)/2; arw[3].y = gw->g.height-1;
arw[4].x = (gw->g.width - gw->g.width/ARROWBODY_DIVIDER)/2; arw[4].y = gw->g.height-1;
arw[5].x = (gw->g.width - gw->g.width/ARROWBODY_DIVIDER)/2; arw[5].y = gw->g.height/ARROWHEAD_DIVIDER;
arw[6].x = 0; arw[6].y = gw->g.height/ARROWHEAD_DIVIDER;
gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, gw->pstyle->background);
gdispGFillConvexPoly(gw->g.display, gw->g.x, gw->g.y, arw, 7, pcol->fill);
gdispGDrawPoly(gw->g.display, gw->g.x, gw->g.y, arw, 7, pcol->edge);
gdispGDrawStringBox(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width-2, gw->g.height-2, gw->text, gw->g.font, pcol->text, justifyCenter);
}
void gwinButtonDraw_ArrowDown(GWidgetObject *gw, void *param) {
const GColorSet * pcol;
(void) param;
point arw[7];
if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
pcol = getDrawColors(gw);
arw[0].x = gw->g.width/2; arw[0].y = gw->g.height-1;
arw[1].x = gw->g.width-1; arw[1].y = gw->g.height-1-gw->g.height/ARROWHEAD_DIVIDER;
arw[2].x = (gw->g.width + gw->g.width/ARROWBODY_DIVIDER)/2; arw[2].y = gw->g.height-1-gw->g.height/ARROWHEAD_DIVIDER;
arw[3].x = (gw->g.width + gw->g.width/ARROWBODY_DIVIDER)/2; arw[3].y = 0;
arw[4].x = (gw->g.width - gw->g.width/ARROWBODY_DIVIDER)/2; arw[4].y = 0;
arw[5].x = (gw->g.width - gw->g.width/ARROWBODY_DIVIDER)/2; arw[5].y = gw->g.height-1-gw->g.height/ARROWHEAD_DIVIDER;
arw[6].x = 0; arw[6].y = gw->g.height-1-gw->g.height/ARROWHEAD_DIVIDER;
gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, gw->pstyle->background);
gdispGFillConvexPoly(gw->g.display, gw->g.x, gw->g.y, arw, 7, pcol->fill);
gdispGDrawPoly(gw->g.display, gw->g.x, gw->g.y, arw, 7, pcol->edge);
gdispGDrawStringBox(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width-2, gw->g.height-2, gw->text, gw->g.font, pcol->text, justifyCenter);
}
void gwinButtonDraw_ArrowLeft(GWidgetObject *gw, void *param) {
const GColorSet * pcol;
(void) param;
point arw[7];
if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
pcol = getDrawColors(gw);
arw[0].x = 0; arw[0].y = gw->g.height/2;
arw[1].x = gw->g.width/ARROWHEAD_DIVIDER; arw[1].y = 0;
arw[2].x = gw->g.width/ARROWHEAD_DIVIDER; arw[2].y = (gw->g.height - gw->g.height/ARROWBODY_DIVIDER)/2;
arw[3].x = gw->g.width-1; arw[3].y = (gw->g.height - gw->g.height/ARROWBODY_DIVIDER)/2;
arw[4].x = gw->g.width-1; arw[4].y = (gw->g.height + gw->g.height/ARROWBODY_DIVIDER)/2;
arw[5].x = gw->g.width/ARROWHEAD_DIVIDER; arw[5].y = (gw->g.height + gw->g.height/ARROWBODY_DIVIDER)/2;
arw[6].x = gw->g.width/ARROWHEAD_DIVIDER; arw[6].y = gw->g.height-1;
gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, gw->pstyle->background);
gdispGFillConvexPoly(gw->g.display, gw->g.x, gw->g.y, arw, 7, pcol->fill);
gdispGDrawPoly(gw->g.display, gw->g.x, gw->g.y, arw, 7, pcol->edge);
gdispGDrawStringBox(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width-2, gw->g.height-2, gw->text, gw->g.font, pcol->text, justifyCenter);
}
void gwinButtonDraw_ArrowRight(GWidgetObject *gw, void *param) {
const GColorSet * pcol;
(void) param;
point arw[7];
if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
pcol = getDrawColors(gw);
arw[0].x = gw->g.width-1; arw[0].y = gw->g.height/2;
arw[1].x = gw->g.width-1-gw->g.width/ARROWHEAD_DIVIDER; arw[1].y = 0;
arw[2].x = gw->g.width-1-gw->g.width/ARROWHEAD_DIVIDER; arw[2].y = (gw->g.height - gw->g.height/ARROWBODY_DIVIDER)/2;
arw[3].x = 0; arw[3].y = (gw->g.height - gw->g.height/ARROWBODY_DIVIDER)/2;
arw[4].x = 0; arw[4].y = (gw->g.height + gw->g.height/ARROWBODY_DIVIDER)/2;
arw[5].x = gw->g.width-1-gw->g.width/ARROWHEAD_DIVIDER; arw[5].y = (gw->g.height + gw->g.height/ARROWBODY_DIVIDER)/2;
arw[6].x = gw->g.width-1-gw->g.width/ARROWHEAD_DIVIDER; arw[6].y = gw->g.height-1;
gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, gw->pstyle->background);
gdispGFillConvexPoly(gw->g.display, gw->g.x, gw->g.y, arw, 7, pcol->fill);
gdispGDrawPoly(gw->g.display, gw->g.x, gw->g.y, arw, 7, pcol->edge);
gdispGDrawStringBox(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width-2, gw->g.height-2, gw->text, gw->g.font, pcol->text, justifyCenter);
}
#endif
#if GDISP_NEED_IMAGE || defined(__DOXYGEN__)
void gwinButtonDraw_Image(GWidgetObject *gw, void *param) {
const GColorSet * pcol;
coord_t sy;
if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
pcol = getDrawColors(gw);
if (!(gw->g.flags & GWIN_FLG_ENABLED)) {
sy = 2 * gw->g.height;
} else if ((gw->g.flags & GBUTTON_FLG_PRESSED)) {
sy = gw->g.height;
} else {
sy = 0;
}
gdispGImageDraw(gw->g.display, (gdispImage *)param, gw->g.x, gw->g.y, gw->g.width, gw->g.height, 0, sy);
gdispGDrawStringBox(gw->g.display, gw->g.x+1, gw->g.y+1, gw->g.width-2, gw->g.height-2, gw->text, gw->g.font, pcol->text, justifyCenter);
}
#endif
#endif /* GFX_USE_GWIN && GWIN_NEED_BUTTON */
/** @} */