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140 lines
3.6 KiB
C++
140 lines
3.6 KiB
C++
// SPDX-License-Identifier: MIT
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//
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// EmulationStation Desktop Edition
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// ButtonComponent.cpp
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//
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// Basic on/off button.
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//
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#include "components/ButtonComponent.h"
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#include "resources/Font.h"
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#include "utils/StringUtil.h"
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#include "Settings.h"
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ButtonComponent::ButtonComponent(
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Window* window, const std::string& text,
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const std::string& helpText,
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const std::function<void()>& func)
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: GuiComponent(window),
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mBox(window, ":/graphics/button.svg"),
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mFont(Font::get(FONT_SIZE_MEDIUM)),
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mFocused(false),
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mEnabled(true),
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mTextColorFocused(0xFFFFFFFF), mTextColorUnfocused(0x777777FF)
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{
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setPressedFunc(func);
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setText(text, helpText);
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updateImage();
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}
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void ButtonComponent::onSizeChanged()
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{
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mBox.fitTo(mSize, Vector3f::Zero(), Vector2f(-32, -32));
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}
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void ButtonComponent::setPressedFunc(std::function<void()> f)
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{
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mPressedFunc = f;
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}
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bool ButtonComponent::input(InputConfig* config, Input input)
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{
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if (config->isMappedTo("a", input) && input.value != 0) {
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if (mPressedFunc && mEnabled)
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mPressedFunc();
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return true;
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}
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return GuiComponent::input(config, input);
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}
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void ButtonComponent::setText(const std::string& text, const std::string& helpText)
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{
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mText = Utils::String::toUpper(text);
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mHelpText = helpText;
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mTextCache = std::unique_ptr<TextCache>(mFont->buildTextCache(mText, 0, 0, getCurTextColor()));
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float minWidth = mFont->sizeText("DELETE").x() + (12 * Renderer::getScreenWidthModifier());
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setSize(std::max(mTextCache->metrics.size.x() + (12 * Renderer::getScreenWidthModifier()),
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minWidth), mTextCache->metrics.size.y());
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updateHelpPrompts();
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}
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void ButtonComponent::onFocusGained()
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{
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mFocused = true;
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updateImage();
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}
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void ButtonComponent::onFocusLost()
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{
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mFocused = false;
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updateImage();
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}
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void ButtonComponent::setEnabled(bool state)
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{
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mEnabled = state;
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updateImage();
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}
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void ButtonComponent::updateImage()
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{
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if (!mEnabled || !mPressedFunc) {
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mBox.setImagePath(":/graphics/button_filled.svg");
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mBox.setCenterColor(0x770000FF);
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mBox.setEdgeColor(0x770000FF);
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return;
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}
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mBox.setCenterColor(0xFFFFFFFF);
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mBox.setEdgeColor(0xFFFFFFFF);
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mBox.setImagePath(mFocused ? ":/graphics/button_filled.svg" : ":/graphics/button.svg");
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}
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void ButtonComponent::render(const Transform4x4f& parentTrans)
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{
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Transform4x4f trans = parentTrans * getTransform();
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mBox.render(trans);
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if (mTextCache) {
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Vector3f centerOffset((mSize.x() - mTextCache->metrics.size.x()) / 2.0f,
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(mSize.y() - mTextCache->metrics.size.y()) / 2.0f, 0);
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trans = trans.translate(centerOffset);
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if (Settings::getInstance()->getBool("DebugText")) {
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Renderer::drawRect(centerOffset.x(), 0.0f, mTextCache->metrics.size.x(),
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mSize.y(), 0x00000033, 0x00000033);
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Renderer::drawRect(mBox.getPosition().x(), 0.0f, mBox.getSize().x(),
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mSize.y(), 0x0000FF33, 0x0000FF33);
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}
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Renderer::setMatrix(trans);
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mTextCache->setColor(getCurTextColor());
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mFont->renderTextCache(mTextCache.get());
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trans = trans.translate(-centerOffset);
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}
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renderChildren(trans);
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}
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unsigned int ButtonComponent::getCurTextColor() const
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{
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if (!mFocused)
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return mTextColorUnfocused;
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else
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return mTextColorFocused;
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}
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std::vector<HelpPrompt> ButtonComponent::getHelpPrompts()
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{
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std::vector<HelpPrompt> prompts;
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prompts.push_back(HelpPrompt("a", mHelpText.empty() ? mText.c_str() : mHelpText.c_str()));
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return prompts;
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}
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