86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
// widgetSeparator.c — Separator widget (horizontal and vertical)
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//
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// A purely decorative widget that draws a 2px etched line (shadow +
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// highlight pair) to visually divide groups of widgets. The etched
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// line technique (dark line followed by light line offset by 1px)
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// creates a subtle 3D groove that matches the Motif/Win3.1 aesthetic.
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//
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// Separate constructors (wgtHSeparator/wgtVSeparator) rather than a
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// runtime orientation parameter because separators are always fixed
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// orientation at construction time.
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//
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// The min size in the cross-axis is SEPARATOR_THICKNESS (2px), while
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// the main axis min is 0 -- the separator stretches to fill the
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// available width/height in its parent layout. This makes separators
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// work correctly in both HBox and VBox containers without explicit
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// sizing.
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//
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// No mouse/key handlers -- purely decorative, non-focusable.
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#include "widgetInternal.h"
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// ============================================================
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// wgtHSeparator
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// ============================================================
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WidgetT *wgtHSeparator(WidgetT *parent) {
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WidgetT *w = widgetAlloc(parent, WidgetSeparatorE);
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if (w) {
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w->as.separator.vertical = false;
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}
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return w;
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}
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// ============================================================
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// wgtVSeparator
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// ============================================================
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WidgetT *wgtVSeparator(WidgetT *parent) {
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WidgetT *w = widgetAlloc(parent, WidgetSeparatorE);
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if (w) {
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w->as.separator.vertical = true;
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}
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return w;
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}
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// ============================================================
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// widgetSeparatorCalcMinSize
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// ============================================================
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void widgetSeparatorCalcMinSize(WidgetT *w, const BitmapFontT *font) {
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(void)font;
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if (w->as.separator.vertical) {
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w->calcMinW = SEPARATOR_THICKNESS;
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w->calcMinH = 0;
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} else {
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w->calcMinW = 0;
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w->calcMinH = SEPARATOR_THICKNESS;
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}
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}
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// ============================================================
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// widgetSeparatorPaint
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// ============================================================
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void widgetSeparatorPaint(WidgetT *w, DisplayT *d, const BlitOpsT *ops, const BitmapFontT *font, const ColorSchemeT *colors) {
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(void)font;
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if (w->as.separator.vertical) {
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int32_t cx = w->x + w->w / 2;
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drawVLine(d, ops, cx, w->y, w->h, colors->windowShadow);
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drawVLine(d, ops, cx + 1, w->y, w->h, colors->windowHighlight);
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} else {
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int32_t cy = w->y + w->h / 2;
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drawHLine(d, ops, w->x, cy, w->w, colors->windowShadow);
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drawHLine(d, ops, w->x, cy + 1, w->w, colors->windowHighlight);
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}
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}
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