84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
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#pragma once
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// Step 517: Control Library Restyle
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// Shared control style semantics for depth, pressed state clarity, and DPI
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// consistency across core widgets.
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#include <string>
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#include <algorithm>
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struct ControlStyle {
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float cornerRadius = 0.0f;
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float borderWidth = 1.0f;
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float depthIdle = 0.0f;
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float depthPressed = 0.0f;
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float labelContrast = 1.0f;
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float iconContrast = 1.0f;
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float strokePx = 1.0f;
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};
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enum class ControlKind {
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Button,
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Toggle,
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Tab,
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Menu,
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Dropdown,
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Checkbox
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};
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class ControlLibraryRestyle {
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public:
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static ControlStyle styleFor(ControlKind kind, float dpiScale, bool pressed) {
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float s = std::max(0.75f, std::min(3.0f, dpiScale));
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ControlStyle c;
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c.cornerRadius = baseRadius(kind) * s;
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c.borderWidth = 1.0f * s;
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c.depthIdle = baseDepth(kind) * s;
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c.depthPressed = (baseDepth(kind) + 1.4f) * s;
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c.labelContrast = 6.0f;
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c.iconContrast = 4.0f;
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c.strokePx = std::max(1.0f, 1.2f * s);
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if (pressed) {
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c.depthIdle = c.depthPressed;
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}
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return c;
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}
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static bool hasClearPressedSignal(const ControlStyle& idle,
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const ControlStyle& pressed) {
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return pressed.depthIdle > idle.depthIdle + 0.6f;
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}
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static bool validContrast(const ControlStyle& c) {
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return c.labelContrast >= 4.5f && c.iconContrast >= 3.0f;
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}
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static bool dpiStable(const ControlStyle& lo, const ControlStyle& hi) {
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return hi.cornerRadius > lo.cornerRadius && hi.strokePx >= lo.strokePx;
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}
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private:
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static float baseRadius(ControlKind kind) {
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switch (kind) {
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case ControlKind::Button: return 4.0f;
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case ControlKind::Toggle: return 7.0f;
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case ControlKind::Tab: return 3.0f;
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case ControlKind::Menu: return 2.0f;
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case ControlKind::Dropdown: return 4.0f;
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case ControlKind::Checkbox: return 2.0f;
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}
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return 3.0f;
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}
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static float baseDepth(ControlKind kind) {
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switch (kind) {
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case ControlKind::Button: return 1.2f;
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case ControlKind::Toggle: return 1.6f;
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case ControlKind::Tab: return 1.0f;
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case ControlKind::Menu: return 0.8f;
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case ControlKind::Dropdown: return 1.1f;
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case ControlKind::Checkbox: return 0.9f;
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}
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return 1.0f;
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}
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};
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