GuiTheme.cpp

/****************************************************************************
 * libgui
 * Daryl Borth 2026
 * GuiTheme.cpp
 ***************************************************************************/
 
#include "GuiTheme.h"
 
static PixelColor rgb(uint8_t r, uint8_t g, uint8_t b, uint8_t a = 255)
{
    PixelColor c = { r, g, b, a };
    return c;
}
 
GuiTheme::GuiTheme() :
    background(rgb(18, 22, 29)),
    surface(rgb(28, 35, 48)),
    surfaceRaised(rgb(36, 46, 64)),
    outline(rgb(43, 54, 71)),
    outlineStrong(rgb(74, 90, 115)),
    accent(rgb(255, 150, 40)),
    accentLight(rgb(255, 200, 110)),
    accentDark(rgb(200, 110, 20)),
    text(rgb(232, 237, 244)),
    textMuted(rgb(152, 164, 181)),
    textOnAccent(rgb(30, 20, 5)),
    good(rgb(63, 208, 176)),
    radius(12.0f),
    strokeWidth(2.0f),
    padding(12.0f),
    spacing(8.0f),
    shadowBlur(14.0f)
{}
 
GuiTheme& GuiTheme::current()
{
    static GuiTheme theme;
    return theme;
}
 
GuiShapeStyle GuiTheme::panelStyle() const
{
    return GuiShapeStyle(GuiPaint().color(surface).stroke(strokeWidth, outline));
}
 
GuiShapeStyle GuiTheme::cardStyle() const
{
    GuiPaint rest = GuiPaint()
        .gradient(surfaceRaised, surface)
        .stroke(strokeWidth, outline)
        .shadow(shadowBlur, rgb(0, 0, 0, 150), 0.0f, 4.0f);
    GuiPaint lit = GuiPaint()
        .gradient(surfaceRaised, surface)
        .stroke(strokeWidth, accent)
        .glow(shadowBlur + 2.0f, rgb(accent.r, accent.g, accent.b, 110), 2.0f);
    GuiPaint pressed = GuiPaint()
        .gradient(surface, surfaceRaised)
        .stroke(strokeWidth, accent)
        .glow(shadowBlur, rgb(accent.r, accent.g, accent.b, 70));
    GuiPaint off = GuiPaint()
        .color(rgb(surface.r, surface.g, surface.b, 140))
        .stroke(strokeWidth, rgb(outline.r, outline.g, outline.b, 140));
    return GuiShapeStyle(rest).onFocus(lit).onPress(pressed).onDisable(off);
}
 
GuiShapeStyle GuiTheme::buttonStyle() const
{
    GuiPaint rest = GuiPaint()
        .gradient(outlineStrong, outline)
        .stroke(strokeWidth, outlineStrong);
    GuiPaint lit = GuiPaint()
        .gradient(accentLight, accent)
        .stroke(strokeWidth, GuiMixColor(accentLight, rgb(255, 255, 255), 0.35f))
        .glow(10.0f, rgb(accent.r, accent.g, accent.b, 90));
    GuiPaint pressed = GuiPaint()
        .gradient(accent, accentDark)
        .stroke(strokeWidth, GuiMixColor(accentLight, rgb(255, 255, 255), 0.35f));
    GuiPaint off = GuiPaint()
        .color(rgb(surface.r, surface.g, surface.b, 150))
        .stroke(strokeWidth, rgb(outline.r, outline.g, outline.b, 150));
    return GuiShapeStyle(rest).onFocus(lit).onPress(pressed).onDisable(off);
}
 
GuiShapeStyle GuiTheme::chipStyle() const
{
    return GuiShapeStyle(GuiPaint().color(outline));
}
 
GuiShapeStyle GuiTheme::rowStyle() const
{
    GuiPaint lit = GuiPaint().color(GuiMixColor(surfaceRaised, outlineStrong, 0.65f));
    GuiPaint pressed = GuiPaint().color(rgb(accent.r, accent.g, accent.b, 110));
    return GuiShapeStyle(GuiPaint()).onFocus(lit).onPress(pressed);
}
 
GuiShapeStyle GuiTheme::barStyle() const
{
    return GuiShapeStyle(GuiPaint().color(GuiMixColor(background, rgb(0, 0, 0), 0.55f)));
}