134 lines
4 KiB
C
134 lines
4 KiB
C
// widgetImageButton.c — Image button widget (button with image instead of text)
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#include "widgetInternal.h"
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// ============================================================
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// wgtImageButton
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// ============================================================
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WidgetT *wgtImageButton(WidgetT *parent, uint8_t *data, int32_t w, int32_t h, int32_t pitch) {
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if (!parent || !data || w <= 0 || h <= 0) {
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return NULL;
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}
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WidgetT *wgt = widgetAlloc(parent, WidgetImageButtonE);
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if (wgt) {
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wgt->as.imageButton.data = data;
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wgt->as.imageButton.imgW = w;
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wgt->as.imageButton.imgH = h;
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wgt->as.imageButton.imgPitch = pitch;
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wgt->as.imageButton.pressed = false;
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} else {
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free(data);
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}
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return wgt;
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}
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// ============================================================
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// wgtImageButtonSetData
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// ============================================================
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void wgtImageButtonSetData(WidgetT *w, uint8_t *data, int32_t imgW, int32_t imgH, int32_t pitch) {
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if (!w || w->type != WidgetImageButtonE) {
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return;
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}
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free(w->as.imageButton.data);
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w->as.imageButton.data = data;
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w->as.imageButton.imgW = imgW;
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w->as.imageButton.imgH = imgH;
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w->as.imageButton.imgPitch = pitch;
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}
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// ============================================================
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// widgetImageButtonDestroy
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// ============================================================
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void widgetImageButtonDestroy(WidgetT *w) {
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free(w->as.imageButton.data);
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}
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// ============================================================
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// widgetImageButtonCalcMinSize
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// ============================================================
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void widgetImageButtonCalcMinSize(WidgetT *w, const BitmapFontT *font) {
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(void)font;
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// Bevel border only, no extra padding
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w->calcMinW = w->as.imageButton.imgW + 4;
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w->calcMinH = w->as.imageButton.imgH + 4;
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}
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// ============================================================
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// widgetImageButtonOnKey
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// ============================================================
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void widgetImageButtonOnKey(WidgetT *w, int32_t key, int32_t mod) {
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(void)mod;
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if (key == ' ' || key == 0x0D) {
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w->as.imageButton.pressed = true;
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sKeyPressedBtn = w;
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wgtInvalidate(w);
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}
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}
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// ============================================================
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// widgetImageButtonOnMouse
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// ============================================================
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void widgetImageButtonOnMouse(WidgetT *w, WidgetT *root, int32_t vx, int32_t vy) {
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(void)root;
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(void)vx;
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(void)vy;
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w->focused = true;
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w->as.imageButton.pressed = true;
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sPressedButton = w;
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}
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// ============================================================
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// widgetImageButtonPaint
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// ============================================================
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void widgetImageButtonPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors) {
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(void)font;
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uint32_t bgFace = w->bgColor ? w->bgColor : colors->buttonFace;
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BevelStyleT bevel;
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bevel.highlight = w->as.imageButton.pressed ? colors->windowShadow : colors->windowHighlight;
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bevel.shadow = w->as.imageButton.pressed ? colors->windowHighlight : colors->windowShadow;
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bevel.face = bgFace;
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bevel.width = 2;
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drawBevel(d, ops, w->x, w->y, w->w, w->h, &bevel);
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if (w->as.imageButton.data) {
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int32_t imgX = w->x + (w->w - w->as.imageButton.imgW) / 2;
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int32_t imgY = w->y + (w->h - w->as.imageButton.imgH) / 2;
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if (w->as.imageButton.pressed) {
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imgX++;
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imgY++;
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}
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rectCopy(d, ops, imgX, imgY,
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w->as.imageButton.data, w->as.imageButton.imgPitch,
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0, 0, w->as.imageButton.imgW, w->as.imageButton.imgH);
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}
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if (w->focused) {
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uint32_t fg = w->fgColor ? w->fgColor : colors->contentFg;
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int32_t off = w->as.imageButton.pressed ? 1 : 0;
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drawFocusRect(d, ops, w->x + 3 + off, w->y + 3 + off, w->w - 6, w->h - 6, fg);
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}
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}
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