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https://github.com/RetroDECK/ES-DE.git
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114 lines
2.5 KiB
C++
114 lines
2.5 KiB
C++
#include "RatingComponent.h"
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#include "../Renderer.h"
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#include "../Window.h"
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RatingComponent::RatingComponent(Window* window) : GuiComponent(window)
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{
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mFilledTexture = TextureResource::get(":/star_filled.png", true);
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mUnfilledTexture = TextureResource::get(":/star_unfilled.png", true);
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mValue = 0.5f;
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mSize << 64 * 5.0f, 64;
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updateVertices();
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}
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void RatingComponent::setValue(const std::string& value)
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{
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if(value.empty())
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{
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mValue = 0.0f;
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return;
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}
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mValue = stof(value);
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if(mValue > 1.0f)
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mValue = 1.0f;
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else if(mValue < 0.0f)
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mValue = 0.0f;
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updateVertices();
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}
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std::string RatingComponent::getValue() const
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{
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return std::to_string((long double)mValue);
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}
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void RatingComponent::onSizeChanged()
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{
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updateVertices();
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}
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void RatingComponent::updateVertices()
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{
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const float numStars = 5.0f;
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const float h = getSize().y();
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const float w = h * mValue * numStars;
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const float fw = h * numStars;
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mVertices[0].pos << 0.0f, 0.0f;
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mVertices[0].tex << 0.0f, 1.0f;
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mVertices[1].pos << w, h;
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mVertices[1].tex << mValue * numStars, 0.0f;
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mVertices[2].pos << 0.0f, h;
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mVertices[2].tex << 0.0f, 0.0f;
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mVertices[3] = mVertices[0];
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mVertices[4].pos << w, 0.0f;
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mVertices[4].tex << mValue * numStars, 1.0f;
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mVertices[5] = mVertices[1];
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mVertices[6] = mVertices[4];
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mVertices[7].pos << fw, h;
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mVertices[7].tex << numStars, 0.0f;
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mVertices[8] = mVertices[1];
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mVertices[9] = mVertices[6];
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mVertices[10].pos << fw, 0.0f;
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mVertices[10].tex << numStars, 1.0f;
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mVertices[11] = mVertices[7];
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}
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void RatingComponent::render(const Eigen::Affine3f& parentTrans)
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{
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Eigen::Affine3f trans = parentTrans * getTransform();
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Renderer::setMatrix(trans);
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glEnable(GL_TEXTURE_2D);
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glEnableClientState(GL_VERTEX_ARRAY);
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glVertexPointer(2, GL_FLOAT, sizeof(Vertex), &mVertices[0].pos);
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glTexCoordPointer(2, GL_FLOAT, sizeof(Vertex), &mVertices[0].tex);
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mFilledTexture->bind();
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glDrawArrays(GL_TRIANGLES, 0, 6);
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mUnfilledTexture->bind();
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glDrawArrays(GL_TRIANGLES, 6, 6);
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glDisableClientState(GL_VERTEX_ARRAY);
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glDisableClientState(GL_TEXTURE_COORD_ARRAY);
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glDisable(GL_TEXTURE_2D);
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glDisable(GL_BLEND);
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renderChildren(trans);
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}
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bool RatingComponent::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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{
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mValue += 0.2f;
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if(mValue > 1.0f)
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mValue = 0.0f;
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updateVertices();
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}
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return GuiComponent::input(config, input);
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}
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