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-rw-r--r--src/gwin/gwin_button.c328
1 files changed, 328 insertions, 0 deletions
diff --git a/src/gwin/gwin_button.c b/src/gwin/gwin_button.c
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+++ b/src/gwin/gwin_button.c
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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 src/gwin/gwin_button.c
+ * @brief GWIN sub-system button code
+ */
+
+#include "gfx.h"
+
+#if GFX_USE_GWIN && GWIN_NEED_BUTTON
+
+#include "gwin_class.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
+#define TOP_FADE 50 // (TOP_FADE/255)% fade to white for top of button
+#define BOTTOM_FADE 25 // (BOTTOM_FADE/255)% fade to black for bottom of button
+
+// Our pressed state
+#define GBUTTON_FLG_PRESSED (GWIN_FIRST_CONTROL_FLAG<<0)
+
+#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;
+ _gwinUpdate((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;
+ _gwinUpdate((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
+
+ _gwinSendEvent(&gw->g, GEVENT_GWIN_BUTTON);
+ }
+#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;
+ _gwinUpdate((GHandle)gw);
+ }
+
+ // A toggle on has occurred
+ static void ToggleOn(GWidgetObject *gw, uint16_t role) {
+ (void) role;
+ gw->g.flags |= GBUTTON_FLG_PRESSED;
+ _gwinUpdate((GHandle)gw);
+ // Trigger the event on button down (different than for mouse/touch)
+ _gwinSendEvent(&gw->g, GEVENT_GWIN_BUTTON);
+ }
+
+ 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_Normal, // 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_SYSENABLED)) return &gw->pstyle->disabled;
+ if ((gw->g.flags & GBUTTON_FLG_PRESSED)) return &gw->pstyle->pressed;
+ return &gw->pstyle->enabled;
+}
+
+#if GWIN_FLAT_STYLING
+ void gwinButtonDraw_Normal(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);
+ }
+#else
+ void gwinButtonDraw_Normal(GWidgetObject *gw, void *param) {
+ const GColorSet * pcol;
+ fixed alpha;
+ fixed dalpha;
+ coord_t i;
+ color_t tcol, bcol;
+ (void) param;
+
+ if (gw->g.vmt != (gwinVMT *)&buttonVMT) return;
+ pcol = getDrawColors(gw);
+
+ /* Fill the box blended from variants of the fill color */
+ tcol = gdispBlendColor(White, pcol->fill, TOP_FADE);
+ bcol = gdispBlendColor(Black, pcol->fill, BOTTOM_FADE);
+ dalpha = FIXED(255)/gw->g.height;
+ for(alpha = 0, i = 0; i < gw->g.height; i++, alpha += dalpha)
+ gdispGDrawLine(gw->g.display, gw->g.x, gw->g.y+i, gw->g.x+gw->g.width-2, gw->g.y+i, gdispBlendColor(bcol, tcol, NONFIXED(alpha)));
+
+ gdispGDrawStringBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width-1, gw->g.height-1, gw->text, gw->g.font, pcol->text, 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);
+ }
+#endif
+
+#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_SYSENABLED)) {
+ 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 */
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