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-rw-r--r--src/gwin/gwin_slider.c376
1 files changed, 376 insertions, 0 deletions
diff --git a/src/gwin/gwin_slider.c b/src/gwin/gwin_slider.c
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+++ b/src/gwin/gwin_slider.c
@@ -0,0 +1,376 @@
+/*
+ * 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_slider.c
+ * @brief GWIN sub-system slider code
+ */
+
+#include "gfx.h"
+
+#if (GFX_USE_GWIN && GWIN_NEED_SLIDER) || defined(__DOXYGEN__)
+
+#include "gwin_class.h"
+
+#ifndef GWIN_SLIDER_DEAD_BAND
+ #define GWIN_SLIDER_DEAD_BAND 5
+#endif
+
+#ifndef GWIN_SLIDER_TOGGLE_INC
+ #define GWIN_SLIDER_TOGGLE_INC 20 // How many toggles to go from minimum to maximum
+#endif
+
+// Send the slider event
+static void SendSliderEvent(GWidgetObject *gw) {
+ GSourceListener * psl;
+ GEvent * pe;
+ #define pse ((GEventGWinSlider *)pe)
+
+ // Trigger a GWIN Button Event
+ psl = 0;
+ while ((psl = geventGetSourceListener(GWIDGET_SOURCE, psl))) {
+ if (!(pe = geventGetEventBuffer(psl)))
+ continue;
+ pse->type = GEVENT_GWIN_SLIDER;
+ pse->gwin = (GHandle)gw;
+ pse->position = ((GSliderObject *)gw)->pos;
+ #if GWIN_WIDGET_TAGS
+ pse->tag = gw->tag;
+ #endif
+ geventSendEvent(psl);
+ }
+
+ #undef pse
+}
+
+// Reset the display position back to the value predicted by the saved slider position
+static void ResetDisplayPos(GSliderObject *gsw) {
+ if (gsw->w.g.width < gsw->w.g.height)
+ gsw->dpos = gsw->w.g.height-1-((gsw->w.g.height-1)*(gsw->pos-gsw->min))/(gsw->max-gsw->min);
+ else
+ gsw->dpos = ((gsw->w.g.width-1)*(gsw->pos-gsw->min))/(gsw->max-gsw->min);
+}
+
+#if GINPUT_NEED_MOUSE
+ // A mouse up event
+ static void MouseUp(GWidgetObject *gw, coord_t x, coord_t y) {
+ #define gsw ((GSliderObject *)gw)
+ #define gh ((GHandle)gw)
+
+ #if GWIN_BUTTON_LAZY_RELEASE
+ // Clip to the slider
+ if (x < 0) x = 0;
+ else if (x >= gh->width) x = gh->width-1;
+ if (y < 0) y = 0;
+ else if (y >= gh->height) x = gh->height-1;
+ #else
+ // Are we over the slider?
+ if (x < 0 || x >= gh->width || y < 0 || y >= gh->height) {
+ // No - restore the slider
+ ResetDisplayPos(gsw);
+ _gwinUpdate(gh);
+ return;
+ }
+ #endif
+
+ // Set the new position
+ if (gh->width < gh->height) {
+ if (y > gh->height-GWIN_SLIDER_DEAD_BAND)
+ gsw->pos = gsw->min;
+ else if (y < GWIN_SLIDER_DEAD_BAND)
+ gsw->pos = gsw->max;
+ else
+ gsw->pos = (uint16_t)((int32_t)(gh->height-1-y-GWIN_SLIDER_DEAD_BAND)*(gsw->max-gsw->min)/(gh->height-2*GWIN_SLIDER_DEAD_BAND) + gsw->min);
+ } else {
+ if (x > gh->width-GWIN_SLIDER_DEAD_BAND)
+ gsw->pos = gsw->max;
+ else if (x < GWIN_SLIDER_DEAD_BAND)
+ gsw->pos = gsw->min;
+ else
+ gsw->pos = (uint16_t)((int32_t)(x-GWIN_SLIDER_DEAD_BAND)*(gsw->max-gsw->min)/(gh->width-2*GWIN_SLIDER_DEAD_BAND) + gsw->min);
+ }
+
+ ResetDisplayPos(gsw);
+ _gwinUpdate(gh);
+
+ // Generate the event
+ SendSliderEvent(gw);
+ #undef gh
+ #undef gsw
+ }
+
+ // A mouse move (or mouse down) event
+ static void MouseMove(GWidgetObject *gw, coord_t x, coord_t y) {
+ #define gsw ((GSliderObject *)gw)
+
+ // Determine the temporary display position (with range checking)
+ if (gw->g.width < gw->g.height) {
+ if (y < 0)
+ gsw->dpos = 0;
+ else if (y >= gw->g.height)
+ gsw->dpos = gw->g.height-1;
+ else
+ gsw->dpos = y;
+ } else {
+ if (x < 0)
+ gsw->dpos = 0;
+ else if (x >= gw->g.width)
+ gsw->dpos = gw->g.width-1;
+ else
+ gsw->dpos = x;
+ }
+
+ // Update the display
+ _gwinUpdate(&gw->g);
+ #undef gsw
+ }
+#endif
+
+#if GINPUT_NEED_TOGGLE
+ // A toggle on has occurred
+ static void ToggleOn(GWidgetObject *gw, uint16_t role) {
+ #define gsw ((GSliderObject *)gw)
+
+ if (role) {
+ gwinSliderSetPosition((GHandle)gw, gsw->pos+(gsw->max-gsw->min)/GWIN_SLIDER_TOGGLE_INC);
+ SendSliderEvent(gw);
+ } else {
+ gwinSliderSetPosition((GHandle)gw, gsw->pos-(gsw->max-gsw->min)/GWIN_SLIDER_TOGGLE_INC);
+ SendSliderEvent(gw);
+ }
+ #undef gsw
+ }
+
+ static void ToggleAssign(GWidgetObject *gw, uint16_t role, uint16_t instance) {
+ if (role)
+ ((GSliderObject *)gw)->t_up = instance;
+ else
+ ((GSliderObject *)gw)->t_dn = instance;
+ }
+
+ static uint16_t ToggleGet(GWidgetObject *gw, uint16_t role) {
+ return role ? ((GSliderObject *)gw)->t_up : ((GSliderObject *)gw)->t_dn;
+ }
+#endif
+
+#if GINPUT_NEED_DIAL
+ // A dial move event
+ static void DialMove(GWidgetObject *gw, uint16_t role, uint16_t value, uint16_t max) {
+ #define gsw ((GSliderObject *)gw)
+ (void) role;
+
+ // Set the new position
+ gsw->pos = (uint16_t)((uint32_t)value*(gsw->max-gsw->min)/max + gsw->min);
+
+ ResetDisplayPos(gsw);
+ _gwinUpdate((GHandle)gw);
+
+ // Generate the event
+ SendSliderEvent(gw);
+ #undef gsw
+ }
+
+ static void DialAssign(GWidgetObject *gw, uint16_t role, uint16_t instance) {
+ (void) role;
+ ((GSliderObject *)gw)->dial = instance;
+ }
+
+ static uint16_t DialGet(GWidgetObject *gw, uint16_t role) {
+ (void) role;
+ return ((GSliderObject *)gw)->dial;
+ }
+#endif
+
+// The slider VMT table
+static const gwidgetVMT sliderVMT = {
+ {
+ "Slider", // The classname
+ sizeof(GSliderObject), // The object size
+ _gwidgetDestroy, // The destroy routine
+ _gwidgetRedraw, // The redraw routine
+ 0, // The after-clear routine
+ },
+ gwinSliderDraw_Std, // The default drawing routine
+ #if GINPUT_NEED_MOUSE
+ {
+ 0, // Process mouse down events (NOT USED)
+ MouseUp, // Process mouse up events
+ MouseMove, // Process mouse move events
+ },
+ #endif
+ #if GINPUT_NEED_TOGGLE
+ {
+ 2, // 1 toggle role
+ ToggleAssign, // Assign Toggles
+ ToggleGet, // Get Toggles
+ 0, // Process toggle off events (NOT USED)
+ ToggleOn, // Process toggle on events
+ },
+ #endif
+ #if GINPUT_NEED_DIAL
+ {
+ 1, // 1 dial roles
+ DialAssign, // Assign Dials
+ DialGet, // Get Dials
+ DialMove, // Process dial move events
+ },
+ #endif
+};
+
+GHandle gwinGSliderCreate(GDisplay *g, GSliderObject *gs, const GWidgetInit *pInit) {
+ if (!(gs = (GSliderObject *)_gwidgetCreate(g, &gs->w, pInit, &sliderVMT)))
+ return 0;
+ #if GINPUT_NEED_TOGGLE
+ gs->t_dn = GWIDGET_NO_INSTANCE;
+ gs->t_up = GWIDGET_NO_INSTANCE;
+ #endif
+ #if GINPUT_NEED_DIAL
+ gs->dial = GWIDGET_NO_INSTANCE;
+ #endif
+ gs->min = 0;
+ gs->max = 100;
+ gs->pos = 0;
+ ResetDisplayPos(gs);
+ gwinSetVisible((GHandle)gs, pInit->g.show);
+ return (GHandle)gs;
+}
+
+void gwinSliderSetRange(GHandle gh, int min, int max) {
+ #define gsw ((GSliderObject *)gh)
+
+ if (gh->vmt != (gwinVMT *)&sliderVMT)
+ return;
+
+ if (min == max) // prevent divide by 0 errors.
+ max++;
+ gsw->min = min;
+ gsw->max = max;
+ gsw->pos = min;
+ ResetDisplayPos(gsw);
+ #undef gsw
+}
+
+void gwinSliderSetPosition(GHandle gh, int pos) {
+ #define gsw ((GSliderObject *)gh)
+
+ if (gh->vmt != (gwinVMT *)&sliderVMT)
+ return;
+
+ if (gsw->min <= gsw->max) {
+ if (pos < gsw->min) gsw->pos = gsw->min;
+ else if (pos > gsw->max) gsw->pos = gsw->max;
+ else gsw->pos = pos;
+ } else {
+ if (pos > gsw->min) gsw->pos = gsw->min;
+ else if (pos < gsw->max) gsw->pos = gsw->max;
+ else gsw->pos = pos;
+ }
+ ResetDisplayPos(gsw);
+ _gwinUpdate(gh);
+
+ #undef gsw
+}
+
+/*----------------------------------------------------------
+ * Custom Draw Routines
+ *----------------------------------------------------------*/
+
+void gwinSliderDraw_Std(GWidgetObject *gw, void *param) {
+ #define gsw ((GSliderObject *)gw)
+ const GColorSet * pcol;
+ (void) param;
+
+ if (gw->g.vmt != (gwinVMT *)&sliderVMT)
+ return;
+
+ if ((gw->g.flags & GWIN_FLG_SYSENABLED))
+ pcol = &gw->pstyle->pressed;
+ else
+ pcol = &gw->pstyle->disabled;
+
+ if (gw->g.width < gw->g.height) { // Vertical slider
+ if (gsw->dpos != gw->g.height-1)
+ gdispGFillArea(gw->g.display, gw->g.x, gw->g.y+gsw->dpos, gw->g.width, gw->g.height - gsw->dpos, pcol->progress); // Active Area
+ if (gsw->dpos != 0)
+ gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gsw->dpos, gw->pstyle->enabled.progress); // Inactive area
+ gdispGDrawBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, pcol->edge); // Edge
+ gdispGDrawLine(gw->g.display, gw->g.x, gw->g.y+gsw->dpos, gw->g.x+gw->g.width-1, gw->g.y+gsw->dpos, pcol->edge); // Thumb
+ if (gsw->dpos >= 2)
+ gdispGDrawLine(gw->g.display, gw->g.x, gw->g.y+gsw->dpos-2, gw->g.x+gw->g.width-1, gw->g.y+gsw->dpos-2, pcol->edge); // Thumb
+ if (gsw->dpos <= gw->g.height-2)
+ gdispGDrawLine(gw->g.display, gw->g.x, gw->g.y+gsw->dpos+2, gw->g.x+gw->g.width-1, gw->g.y+gsw->dpos+2, pcol->edge); // Thumb
+
+ // Horizontal slider
+ } else {
+ if (gsw->dpos != gw->g.width-1)
+ gdispGFillArea(gw->g.display, gw->g.x+gsw->dpos, gw->g.y, gw->g.width-gsw->dpos, gw->g.height, gw->pstyle->enabled.progress); // Inactive area
+ if (gsw->dpos != 0)
+ gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gsw->dpos, gw->g.height, pcol->progress); // Active Area
+ gdispGDrawBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, pcol->edge); // Edge
+ gdispGDrawLine(gw->g.display, gw->g.x+gsw->dpos, gw->g.y, gw->g.x+gsw->dpos, gw->g.y+gw->g.height-1, pcol->edge); // Thumb
+ if (gsw->dpos >= 2)
+ gdispGDrawLine(gw->g.display, gw->g.x+gsw->dpos-2, gw->g.y, gw->g.x+gsw->dpos-2, gw->g.y+gw->g.height-1, pcol->edge); // Thumb
+ if (gsw->dpos <= gw->g.width-2)
+ gdispGDrawLine(gw->g.display, gw->g.x+gsw->dpos+2, gw->g.y, gw->g.x+gsw->dpos+2, gw->g.y+gw->g.height-1, pcol->edge); // Thumb
+ }
+ 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);
+
+ #undef gsw
+}
+
+#if GDISP_NEED_IMAGE
+void gwinSliderDraw_Image(GWidgetObject *gw, void *param) {
+ #define gsw ((GSliderObject *)gw)
+ #define gi ((gdispImage *)param)
+ const GColorSet * pcol;
+ coord_t z, v;
+
+ if (gw->g.vmt != (gwinVMT *)&sliderVMT)
+ return;
+
+ if ((gw->g.flags & GWIN_FLG_SYSENABLED))
+ pcol = &gw->pstyle->pressed;
+ else
+ pcol = &gw->pstyle->disabled;
+
+ if (gw->g.width < gw->g.height) { // Vertical slider
+ if (gsw->dpos != 0) // The unfilled area
+ gdispGFillArea(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gsw->dpos, gw->pstyle->enabled.progress); // Inactive area
+ if (gsw->dpos != gw->g.height-1) { // The filled area
+ for(z=gw->g.height, v=gi->height; z > gsw->dpos;) {
+ z -= v;
+ if (z < gsw->dpos) {
+ v -= gsw->dpos - z;
+ z = gsw->dpos;
+ }
+ gdispGImageDraw(gw->g.display, gi, gw->g.x, gw->g.y+z, gw->g.width, v, 0, gi->height-v);
+ }
+ }
+ gdispGDrawBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, pcol->edge); // Edge
+ gdispGDrawLine(gw->g.display, gw->g.x, gw->g.y+gsw->dpos, gw->g.x+gw->g.width-1, gw->g.y+gsw->dpos, pcol->edge); // Thumb
+
+ // Horizontal slider
+ } else {
+ if (gsw->dpos != gw->g.width-1) // The unfilled area
+ gdispGFillArea(gw->g.display, gw->g.x+gsw->dpos, gw->g.y, gw->g.width-gsw->dpos, gw->g.height, gw->pstyle->enabled.progress); // Inactive area
+ if (gsw->dpos != 0) { // The filled area
+ for(z=0, v=gi->width; z < gsw->dpos; z += v) {
+ if (z+v > gsw->dpos)
+ v -= z+v - gsw->dpos;
+ gdispGImageDraw(gw->g.display, gi, gw->g.x+z, gw->g.y, v, gw->g.height, 0, 0);
+ }
+ }
+ gdispGDrawBox(gw->g.display, gw->g.x, gw->g.y, gw->g.width, gw->g.height, pcol->edge); // Edge
+ gdispGDrawLine(gw->g.display, gw->g.x+gsw->dpos, gw->g.y, gw->g.x+gsw->dpos, gw->g.y+gw->g.height-1, pcol->edge); // Thumb
+ }
+ 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);
+
+ #undef gsw
+}
+#endif /* GDISP_NEED_IMAGE */
+
+#endif /* GFX_USE_GWIN && GWIN_NEED_BUTTON */
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