ugfx/src/gwin/button.c

414 lines
13 KiB
C

/*
* This file is subject to the terms of the GFX License, v1.0. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://chibios-gfx.com/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) || defined(__DOXYGEN__)
/* 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
#include <string.h>
#include "gwin/internal.h"
#define GWIN_BUTTON_DEFAULT_SHAPE GBTN_3D
static const GButtonDrawStyle GButtonDefaultStyleUp = {
HTML2COLOR(0x404040), // color_up_edge;
HTML2COLOR(0xE0E0E0), // color_up_fill;
HTML2COLOR(0x000000), // color_up_txt;
};
static const GButtonDrawStyle GButtonDefaultStyleDown = {
HTML2COLOR(0x404040), // color_dn_edge;
HTML2COLOR(0x808080), // color_dn_fill;
HTML2COLOR(0x404040), // color_dn_txt;
};
// Process an event callback
static void gwinButtonCallback(void *param, GEvent *pe) {
GSourceListener *psl;
#define gh ((GHandle)param)
#define gbw ((GButtonObject *)param)
#define gsh ((GSourceHandle)param)
#define pme ((GEventMouse *)pe)
#define pte ((GEventTouch *)pe)
#define pxe ((GEventToggle *)pe)
#define pbe ((GEventGWinButton *)pe)
// check if button is disabled
if (!gh->enabled)
return;
switch (pe->type) {
#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
case GEVENT_MOUSE:
case GEVENT_TOUCH:
// Ignore anything other than the primary mouse button going up or down
if (!((pme->current_buttons ^ pme->last_buttons) & GINPUT_MOUSE_BTN_LEFT))
return;
if (gbw->state == GBTN_UP) {
// Our button is UP: Test for button down over the button
if ((pme->current_buttons & GINPUT_MOUSE_BTN_LEFT)
&& pme->x >= gbw->gwin.x && pme->x < gbw->gwin.x + gbw->gwin.width
&& pme->y >= gbw->gwin.y && pme->y < gbw->gwin.y + gbw->gwin.height) {
gbw->state = GBTN_DOWN;
gwinButtonDraw((GHandle)param);
}
return;
}
// Our button is DOWN
// Skip more mouse downs
if ((pme->current_buttons & GINPUT_MOUSE_BTN_LEFT))
return;
// This must be a mouse up - set the button as UP
gbw->state = GBTN_UP;
gwinButtonDraw((GHandle)param);
#if GWIN_BUTTON_LAZY_RELEASE
break;
#else
// If the mouse up was over the button then create the event
if (pme->x >= gbw->gwin.x && pme->x < gbw->gwin.x + gbw->gwin.width
&& pme->y >= gbw->gwin.y && pme->y < gbw->gwin.y + gbw->gwin.height)
break;
return;
#endif
#endif
#if GFX_USE_GINPUT && GINPUT_NEED_TOGGLE
case GEVENT_TOGGLE:
// State has changed - update the button
gbw->state = pxe->on ? GBTN_DOWN : GBTN_UP;
gwinButtonDraw((GHandle)param);
// Trigger the event on button down (different than for mouse/touch)
if (gbw->state == GBTN_DOWN)
break;
return;
#endif
default:
return;
}
// Trigger a GWIN Button Event
psl = 0;
while ((psl = geventGetSourceListener(gsh, psl))) {
if (!(pe = geventGetEventBuffer(psl)))
continue;
pbe->type = GEVENT_GWIN_BUTTON;
pbe->button = gh;
geventSendEvent(psl);
}
#undef pbe
#undef pme
#undef pte
#undef pxe
#undef gsh
#undef gbw
#undef gh
}
GHandle gwinCreateButton(GButtonObject *gb, coord_t x, coord_t y, coord_t width, coord_t height, font_t font, GButtonType type) {
if (!(gb = (GButtonObject *)_gwinInit((GWindowObject *)gb, x, y, width, height, sizeof(GButtonObject))))
return 0;
gb->gwin.type = GW_BUTTON;
gb->fn = 0;
gb->param = 0;
gwinSetFont(&gb->gwin, font);
gwinSetButtonStyle(&gb->gwin, GWIN_BUTTON_DEFAULT_SHAPE, &GButtonDefaultStyleUp, &GButtonDefaultStyleDown);
gb->type = type;
gb->state = GBTN_UP;
gb->txt = "";
geventListenerInit(&gb->listener);
geventRegisterCallback(&gb->listener, gwinButtonCallback, gb);
// buttons are enabled by default
gb->gwin.enabled = TRUE;
return (GHandle)gb;
}
void gwinSetButtonStyle(GHandle gh, GButtonShape shape, const GButtonDrawStyle *pUp, const GButtonDrawStyle *pDown) {
#define gbw ((GButtonObject *)gh)
if (gh->type != GW_BUTTON)
return;
switch(shape) {
case GBTN_SQUARE: gbw->fn = gwinButtonDraw_Square; break;
#if GDISP_NEED_ARC
case GBTN_ROUNDED: gbw->fn = gwinButtonDraw_Rounded; break;
#endif
#if GDISP_NEED_ELLIPSE
case GBTN_ELLIPSE: gbw->fn = gwinButtonDraw_Ellipse; break;
#endif
#if GDISP_NEED_CONVEX_POLYGON
case GBTN_ARROW_UP: gbw->fn = gwinButtonDraw_ArrowUp; break;
case GBTN_ARROW_DOWN: gbw->fn = gwinButtonDraw_ArrowDown; break;
case GBTN_ARROW_LEFT: gbw->fn = gwinButtonDraw_ArrowLeft; break;
case GBTN_ARROW_RIGHT: gbw->fn = gwinButtonDraw_ArrowRight; break;
#endif
case GBTN_CUSTOM: if (gbw->fn) break; /* Fall Through */
case GBTN_3D: /* Fall through */
default: gbw->fn = gwinButtonDraw_3D; break;
}
if (pUp) {
gbw->up.color_edge = pUp->color_edge;
gbw->up.color_fill = pUp->color_fill;
gbw->up.color_txt = pUp->color_txt;
}
if (pDown) {
gbw->dn.color_edge = pDown->color_edge;
gbw->dn.color_fill = pDown->color_fill;
gbw->dn.color_txt = pDown->color_txt;
}
#undef gbw
}
void gwinSetButtonText(GHandle gh, const char *txt, bool_t useAlloc) {
#define gbw ((GButtonObject *)gh)
if (gh->type != GW_BUTTON)
return;
// Dispose of the old string
if ((gh->flags & GBTN_FLG_ALLOCTXT)) {
gh->flags &= ~GBTN_FLG_ALLOCTXT;
if (gbw->txt) {
gfxFree((void *)gbw->txt);
gbw->txt = "";
}
}
// Alloc the new text if required
if (txt && useAlloc) {
char *str;
if ((str = (char *)gfxAlloc(strlen(txt)+1))) {
gh->flags |= GBTN_FLG_ALLOCTXT;
strcpy(str, txt);
}
txt = (const char *)str;
}
gbw->txt = txt ? txt : "";
#undef gbw
}
void gwinButtonDraw(GHandle gh) {
#define gbw ((GButtonObject *)gh)
if (gh->type != GW_BUTTON)
return;
#if GDISP_NEED_CLIP
gdispSetClip(gh->x, gh->y, gh->width, gh->height);
#endif
gbw->fn(gh,
gbw->gwin.enabled,
gbw->state == GBTN_DOWN,
gh->font && gbw->txt ? gbw->txt : "",
gbw->state == GBTN_DOWN ? &gbw->dn : &gbw->up,
gbw->param);
#undef gbw
}
void gwinSetButtonCustom(GHandle gh, GButtonDrawFunction fn, void *param) {
#define gbw ((GButtonObject *)gh)
if (gh->type != GW_BUTTON)
return;
gbw->fn = fn ? fn : gwinButtonDraw_3D;
gbw->param = param;
#undef gbw
}
void gwinButtonSetEnabled(GHandle gh, bool_t enabled) {
if (gh->type != GW_BUTTON)
return;
gh->enabled = enabled;
}
void gwinButtonDraw_3D(GHandle gh, bool_t enabled, bool_t isdown, const char *txt, const GButtonDrawStyle *pstyle, void *param) {
(void) enabled;
(void) isdown;
(void) param;
gdispFillStringBox(gh->x, gh->y, gh->width-1, gh->height-1, txt, gh->font, pstyle->color_txt, pstyle->color_fill, justifyCenter);
gdispDrawLine(gh->x+gh->width-1, gh->y, gh->x+gh->width-1, gh->y+gh->height-1, pstyle->color_edge);
gdispDrawLine(gh->x, gh->y+gh->height-1, gh->x+gh->width-2, gh->y+gh->height-1, pstyle->color_edge);
}
void gwinButtonDraw_Square(GHandle gh, bool_t enabled, bool_t isdown, const char *txt, const GButtonDrawStyle *pstyle, void *param) {
(void) enabled;
(void) isdown;
(void) param;
gdispFillStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, pstyle->color_txt, pstyle->color_fill, justifyCenter);
gdispDrawBox(gh->x, gh->y, gh->width, gh->height, pstyle->color_edge);
}
#if GDISP_NEED_ARC
void gwinButtonDraw_Rounded(GHandle gh, bool_t enabled, bool_t isdown, const char *txt, const GButtonDrawStyle *pstyle, void *param) {
(void) enabled;
(void) isdown;
(void) param;
if (gh->width >= 2*RND_CNR_SIZE+10) {
gdispFillRoundedBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, RND_CNR_SIZE-1, pstyle->color_fill);
gdispDrawStringBox(gh->x+1, gh->y+RND_CNR_SIZE, gh->width-2, gh->height-(2*RND_CNR_SIZE), txt, gh->font, pstyle->color_txt, justifyCenter);
gdispDrawRoundedBox(gh->x, gh->y, gh->width, gh->height, RND_CNR_SIZE, pstyle->color_edge);
} else {
gdispFillStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, pstyle->color_txt, pstyle->color_fill, justifyCenter);
gdispDrawBox(gh->x, gh->y, gh->width, gh->height, pstyle->color_edge);
}
}
#endif
#if GDISP_NEED_ELLIPSE
void gwinButtonDraw_Ellipse(GHandle gh, bool_t enabled, bool_t isdown, const char *txt, const GButtonDrawStyle *pstyle, void *param) {
(void) enabled;
(void) isdown;
(void) param;
gdispFillEllipse(gh->x+1, gh->y+1, gh->width/2-1, gh->height/2-1, pstyle->color_fill);
gdispDrawStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, pstyle->color_txt, justifyCenter);
gdispDrawEllipse(gh->x, gh->y, gh->width/2, gh->height/2, pstyle->color_edge);
}
#endif
#if GDISP_NEED_CONVEX_POLYGON
void gwinButtonDraw_ArrowUp(GHandle gh, bool_t enabled, bool_t isdown, const char *txt, const GButtonDrawStyle *pstyle, void *param) {
(void) enabled;
(void) isdown;
(void) param;
point arw[7];
arw[0].x = gh->width/2; arw[0].y = 0;
arw[1].x = gh->width-1; arw[1].y = gh->height/ARROWHEAD_DIVIDER;
arw[2].x = (gh->width + gh->width/ARROWBODY_DIVIDER)/2; arw[2].y = gh->height/ARROWHEAD_DIVIDER;
arw[3].x = (gh->width + gh->width/ARROWBODY_DIVIDER)/2; arw[3].y = gh->height-1;
arw[4].x = (gh->width - gh->width/ARROWBODY_DIVIDER)/2; arw[4].y = gh->height-1;
arw[5].x = (gh->width - gh->width/ARROWBODY_DIVIDER)/2; arw[5].y = gh->height/ARROWHEAD_DIVIDER;
arw[6].x = 0; arw[6].y = gh->height/ARROWHEAD_DIVIDER;
gdispFillConvexPoly(gh->x, gh->y, arw, 7, pstyle->color_fill);
gdispDrawPoly(gh->x, gh->y, arw, 7, pstyle->color_edge);
gdispDrawStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, pstyle->color_txt, justifyCenter);
}
void gwinButtonDraw_ArrowDown(GHandle gh, bool_t enabled, bool_t isdown, const char *txt, const GButtonDrawStyle *pstyle, void *param) {
(void) enabled;
(void) isdown;
(void) param;
point arw[7];
arw[0].x = gh->width/2; arw[0].y = gh->height-1;
arw[1].x = gh->width-1; arw[1].y = gh->height-1-gh->height/ARROWHEAD_DIVIDER;
arw[2].x = (gh->width + gh->width/ARROWBODY_DIVIDER)/2; arw[2].y = gh->height-1-gh->height/ARROWHEAD_DIVIDER;
arw[3].x = (gh->width + gh->width/ARROWBODY_DIVIDER)/2; arw[3].y = 0;
arw[4].x = (gh->width - gh->width/ARROWBODY_DIVIDER)/2; arw[4].y = 0;
arw[5].x = (gh->width - gh->width/ARROWBODY_DIVIDER)/2; arw[5].y = gh->height-1-gh->height/ARROWHEAD_DIVIDER;
arw[6].x = 0; arw[6].y = gh->height-1-gh->height/ARROWHEAD_DIVIDER;
gdispFillConvexPoly(gh->x, gh->y, arw, 7, pstyle->color_fill);
gdispDrawPoly(gh->x, gh->y, arw, 7, pstyle->color_edge);
gdispDrawStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, pstyle->color_txt, justifyCenter);
}
void gwinButtonDraw_ArrowLeft(GHandle gh, bool_t enabled, bool_t isdown, const char *txt, const GButtonDrawStyle *pstyle, void *param) {
(void) enabled;
(void) isdown;
(void) param;
point arw[7];
arw[0].x = 0; arw[0].y = gh->height/2;
arw[1].x = gh->width/ARROWHEAD_DIVIDER; arw[1].y = 0;
arw[2].x = gh->width/ARROWHEAD_DIVIDER; arw[2].y = (gh->height - gh->height/ARROWBODY_DIVIDER)/2;
arw[3].x = gh->width-1; arw[3].y = (gh->height - gh->height/ARROWBODY_DIVIDER)/2;
arw[4].x = gh->width-1; arw[4].y = (gh->height + gh->height/ARROWBODY_DIVIDER)/2;
arw[5].x = gh->width/ARROWHEAD_DIVIDER; arw[5].y = (gh->height + gh->height/ARROWBODY_DIVIDER)/2;
arw[6].x = gh->width/ARROWHEAD_DIVIDER; arw[6].y = gh->height-1;
gdispFillConvexPoly(gh->x, gh->y, arw, 7, pstyle->color_fill);
gdispDrawPoly(gh->x, gh->y, arw, 7, pstyle->color_edge);
gdispDrawStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, pstyle->color_txt, justifyCenter);
}
void gwinButtonDraw_ArrowRight(GHandle gh, bool_t enabled, bool_t isdown, const char *txt, const GButtonDrawStyle *pstyle, void *param) {
(void) enabled;
(void) isdown;
(void) param;
point arw[7];
arw[0].x = gh->width-1; arw[0].y = gh->height/2;
arw[1].x = gh->width-1-gh->width/ARROWHEAD_DIVIDER; arw[1].y = 0;
arw[2].x = gh->width-1-gh->width/ARROWHEAD_DIVIDER; arw[2].y = (gh->height - gh->height/ARROWBODY_DIVIDER)/2;
arw[3].x = 0; arw[3].y = (gh->height - gh->height/ARROWBODY_DIVIDER)/2;
arw[4].x = 0; arw[4].y = (gh->height + gh->height/ARROWBODY_DIVIDER)/2;
arw[5].x = gh->width-1-gh->width/ARROWHEAD_DIVIDER; arw[5].y = (gh->height + gh->height/ARROWBODY_DIVIDER)/2;
arw[6].x = gh->width-1-gh->width/ARROWHEAD_DIVIDER; arw[6].y = gh->height-1;
gdispFillConvexPoly(gh->x, gh->y, arw, 7, pstyle->color_fill);
gdispDrawPoly(gh->x, gh->y, arw, 7, pstyle->color_edge);
gdispDrawStringBox(gh->x+1, gh->y+1, gh->width-2, gh->height-2, txt, gh->font, pstyle->color_txt, justifyCenter);
}
#endif
#if GFX_USE_GINPUT && GINPUT_NEED_MOUSE
bool_t gwinAttachButtonMouse(GHandle gh, uint16_t instance) {
GSourceHandle gsh;
if (gh->type != GW_BUTTON || !(gsh = ginputGetMouse(instance)))
return FALSE;
return geventAttachSource(&((GButtonObject *)gh)->listener, gsh, GLISTEN_MOUSEMETA);
}
#endif
#if GFX_USE_GINPUT && GINPUT_NEED_TOGGLE
bool_t gwinAttachButtonToggle(GHandle gh, uint16_t instance) {
GSourceHandle gsh;
if (gh->type != GW_BUTTON || !(gsh = ginputGetToggle(instance)))
return FALSE;
return geventAttachSource(&((GButtonObject *)gh)->listener, gsh, GLISTEN_TOGGLE_OFF|GLISTEN_TOGGLE_ON);
}
#endif
#endif /* GFX_USE_GWIN && GWIN_NEED_BUTTON */
/** @} */