// widgetButton.c — Button widget

#include "widgetInternal.h"


// ============================================================
// wgtButton
// ============================================================

WidgetT *wgtButton(WidgetT *parent, const char *text) {
    WidgetT *w = widgetAlloc(parent, WidgetButtonE);

    if (w) {
        w->as.button.text    = text;
        w->as.button.pressed = false;
    }

    return w;
}


// ============================================================
// widgetButtonCalcMinSize
// ============================================================

void widgetButtonCalcMinSize(WidgetT *w, const BitmapFontT *font) {
    w->calcMinW = (int32_t)strlen(w->as.button.text) * font->charWidth + BUTTON_PAD_H * 2;
    w->calcMinH = font->charHeight + BUTTON_PAD_V * 2;
}


// ============================================================
// widgetButtonOnMouse
// ============================================================

void widgetButtonOnMouse(WidgetT *hit) {
    hit->as.button.pressed = true;
    wgtInvalidate(hit);

    if (hit->onClick) {
        hit->onClick(hit);
    }

    hit->as.button.pressed = false;
}


// ============================================================
// widgetButtonPaint
// ============================================================

void widgetButtonPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors) {
    uint32_t fg     = w->fgColor ? w->fgColor : colors->contentFg;
    uint32_t bgFace = w->bgColor ? w->bgColor : colors->buttonFace;

    BevelStyleT bevel;
    bevel.highlight = w->as.button.pressed ? colors->windowShadow : colors->windowHighlight;
    bevel.shadow    = w->as.button.pressed ? colors->windowHighlight : colors->windowShadow;
    bevel.face      = bgFace;
    bevel.width     = 2;
    drawBevel(d, ops, w->x, w->y, w->w, w->h, &bevel);

    int32_t textW = (int32_t)strlen(w->as.button.text) * font->charWidth;
    int32_t textX = w->x + (w->w - textW) / 2;
    int32_t textY = w->y + (w->h - font->charHeight) / 2;

    if (w->as.button.pressed) {
        textX++;
        textY++;
    }

    drawText(d, ops, font, textX, textY,
             w->as.button.text,
             w->enabled ? fg : colors->windowShadow,
             bgFace, true);
}