mirror of
https://github.com/zhenyan121/SporeBG-Conid.git
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114 lines
3.9 KiB
C++
114 lines
3.9 KiB
C++
#include "UIRenderer.h"
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#include <iostream>
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UIRenderer::UIRenderer(SDL_Renderer* renderer, TextRenderer* textRenderer) :
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m_renderer(renderer),
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//m_fontManager(fontManager),
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m_textRenderer(textRenderer)
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{
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}
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UIRenderer::~UIRenderer() {
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}
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void UIRenderer::renderUI(const UIRenderData& uiRenderData) {
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if (!m_renderer) return;
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// 控制颜色混合方式 用 NONE 可避免所有混合
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//SDL_SetRenderDrawBlendMode(m_renderer, SDL_BLENDMODE_NONE);
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// 保存当前渲染状态
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SDL_Color previousDrawColor;
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SDL_GetRenderDrawColor(m_renderer,
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&previousDrawColor.r,
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&previousDrawColor.g,
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&previousDrawColor.b,
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&previousDrawColor.a);
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// 设置UI渲染状态
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// 例如：SDL_SetRenderDrawBlendMode(m_renderer, SDL_BLENDMODE_BLEND);
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for (auto& button : uiRenderData.buttons) {
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renderButton(button);
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}
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for (auto& label : uiRenderData.labels) {
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renderLabel(label);
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}
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// 恢复之前的渲染状态
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SDL_SetRenderDrawColor(m_renderer,
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previousDrawColor.r,
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previousDrawColor.g,
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previousDrawColor.b,
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previousDrawColor.a);
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}
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void UIRenderer::renderButton(const ButtonData& buttonData) {
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//SDL_Log("render button\n");
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renderButtonBackground(buttonData);
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renderButtonBorder(buttonData);
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renderText<ButtonData>(buttonData);
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}
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void UIRenderer::renderLabel(const LabelData& labelData) {
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//SDL_Log("start render label\n");
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renderText<LabelData>(labelData);
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}
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void UIRenderer::renderButtonBackground(const ButtonData& buttonData) {
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// 设置绘制颜色
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if (!m_renderer) {
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SDL_Log("renderer is null\n");
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}
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// SDL_Log("renderButtonBackground called for rect (%d,%d,%d,%d)",
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// buttonData.rect.x, buttonData.rect.y, buttonData.rect.w, buttonData.rect.h);
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//SDL_Log("start render background\n");
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auto m_backgroundColor = buttonData.backgroundColor;
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auto m_rect = buttonData.rect;
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SDL_SetRenderDrawColor(m_renderer, m_backgroundColor.r, m_backgroundColor.g, m_backgroundColor.b, m_backgroundColor.a);
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auto [width, height] = m_textRenderer->getTextSize(buttonData.text, buttonData.textstytle);
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// 绘制普通矩形
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SDL_FRect rect = { static_cast<float>(m_rect.x),
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static_cast<float>(m_rect.y),
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static_cast<float>(width),
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static_cast<float>(height) };
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SDL_RenderFillRect(m_renderer, &rect);
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}
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void UIRenderer::renderButtonBorder(const ButtonData& buttonData) {
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}
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template <typename Type>
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void UIRenderer::renderText(const Type& data) {
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auto m_text = data.text;
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// std::cout << data.text << "\n";
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auto m_rect = data.rect;
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auto m_textStyle = data.textstytle;
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if (m_text.empty()) return;
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// 计算文本位置（居中）
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// 这里需要TextRenderer的实际实现
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// 假设TextRenderer有一个renderText方法：
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// void renderText(SDL_Renderer* renderer, const std::string& text,
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// const TextStyle& style, int x, int y);
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// 获取文本实际尺寸以便正确居中渲染
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auto [textW, textH] = m_textRenderer->getTextSize(m_text, m_textStyle);
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// 如果组件的宽高为 0，则使用文本尺寸填充（相当于自动调整控件大小）
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float boxW = m_rect.w;
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float boxH = m_rect.h;
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if (boxW <= 0.0f) boxW = static_cast<float>(textW);
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if (boxH <= 0.0f) boxH = static_cast<float>(textH);
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// 计算文本左上角坐标以实现居中
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int textX = static_cast<int>(m_rect.x + (boxW - textW) / 2.0f);
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int textY = static_cast<int>(m_rect.y + (boxH - textH) / 2.0f);
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// 渲染文本（TextRenderer 的 x,y 为左上角）
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m_textRenderer->renderText(m_text, m_textStyle, textX, textY);
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}
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