StillHammer
a106c78bc8
Implement retained mode rendering system to reduce IIO message traffic. Widgets now register render entries that persist across frames and only publish updates when visual state changes. Core changes: - UIWidget: Add dirty flags and render ID tracking - UIRenderer: Add retained mode API (registerEntry, updateRect, updateText, updateSprite) - SceneCollector: Add persistent sprite/text storage with add/update/remove handlers - IIO protocol: New topics (render:sprite:add/update/remove, render:text:add/update/remove) Widget migrations: - UIPanel, UIButton, UILabel, UICheckbox, UISlider - UIProgressBar, UITextInput, UIImage, UIScrollPanel Documentation: - docs/UI_RENDERING.md: Retained mode architecture - modules/UIModule/README.md: Rendering modes section - docs/DEVELOPER_GUIDE.md: Updated IIO topics Performance: Reduces message traffic by 85-97% for static/mostly-static UIs 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
98 lines
3.2 KiB
C++
98 lines
3.2 KiB
C++
#include "UICheckbox.h"
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#include "../Core/UIContext.h"
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#include "../Rendering/UIRenderer.h"
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namespace grove {
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void UICheckbox::update(UIContext& ctx, float deltaTime) {
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// Check if mouse is over checkbox
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isHovered = containsPoint(ctx.mouseX, ctx.mouseY);
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// Update children
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updateChildren(ctx, deltaTime);
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}
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void UICheckbox::render(UIRenderer& renderer) {
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// Register with renderer on first render (need 3 entries: box + checkmark + text)
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if (!m_registered) {
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m_renderId = renderer.registerEntry(); // Box background
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m_checkRenderId = renderer.registerEntry(); // Checkmark
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m_textRenderId = renderer.registerEntry(); // Label text
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m_registered = true;
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// Set destroy callback to unregister all entries
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setDestroyCallback([&renderer, checkId = m_checkRenderId, textId = m_textRenderId](uint32_t id) {
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renderer.unregisterEntry(id);
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renderer.unregisterEntry(checkId);
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renderer.unregisterEntry(textId);
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});
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}
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// Render checkbox box
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float boxX = absX;
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float boxY = absY + (height - boxSize) * 0.5f; // Vertically center the box
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// Box background (retained mode)
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int boxLayer = renderer.nextLayer();
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uint32_t currentBoxColor = isHovered ? 0x475569FF : boxColor;
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renderer.updateRect(m_renderId, boxX, boxY, boxSize, boxSize, currentBoxColor, boxLayer);
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// Check mark if checked (retained mode)
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int checkLayer = renderer.nextLayer();
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if (checked) {
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// Draw a smaller filled rect as checkmark
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float checkPadding = boxSize * 0.25f;
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renderer.updateRect(
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m_checkRenderId,
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boxX + checkPadding,
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boxY + checkPadding,
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boxSize - checkPadding * 2,
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boxSize - checkPadding * 2,
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checkColor,
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checkLayer
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);
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} else {
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// Hide checkmark when unchecked (zero-size rect)
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renderer.updateRect(m_checkRenderId, 0, 0, 0, 0, 0x00000000, checkLayer);
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}
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// Render label text if present (retained mode)
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if (!text.empty()) {
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int textLayer = renderer.nextLayer();
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float textX = boxX + boxSize + spacing;
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float textY = absY + height * 0.5f;
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renderer.updateText(m_textRenderId, textX, textY, text, fontSize, textColor, textLayer);
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}
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// Render children on top
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renderChildren(renderer);
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}
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bool UICheckbox::containsPoint(float px, float py) const {
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return px >= absX && px < absX + width &&
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py >= absY && py < absY + height;
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}
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bool UICheckbox::onMouseButton(int button, bool pressed, float x, float y) {
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if (button == 0) {
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if (pressed && containsPoint(x, y)) {
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isPressed = true;
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return true;
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}
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if (!pressed && isPressed && containsPoint(x, y)) {
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// Click complete - toggle
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toggle();
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isPressed = false;
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return true;
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}
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isPressed = false;
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}
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return false;
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}
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void UICheckbox::toggle() {
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checked = !checked;
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// Value changed event will be published by UIModule
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}
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} // namespace grove
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