58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
#include <QPainter>
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#include <QPainterPath>
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#include "cut_face_preview.h"
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#include "theme.h"
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static std::map<int, QImage *> g_standardCutFaceMap;
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QImage *buildCutFaceTemplatePreviewImage(const std::vector<dust3d::Vector2> &cutTemplate)
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{
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QImage *image = new QImage(Theme::partPreviewImageSize, Theme::partPreviewImageSize, QImage::Format_ARGB32);
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image->fill(Qt::transparent);
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if (cutTemplate.empty())
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return image;
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QPainter painter;
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painter.begin(image);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setRenderHint(QPainter::HighQualityAntialiasing);
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QPen pen(Theme::red, 2);
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painter.setPen(pen);
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QBrush brush;
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brush.setColor(Theme::white);
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brush.setStyle(Qt::SolidPattern);
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painter.setBrush(brush);
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const float scale = 0.7f;
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QPolygon polygon;
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for (int i = 0; i <= cutTemplate.size(); ++i) {
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const auto &it = cutTemplate[i % cutTemplate.size()];
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polygon.append(QPoint((it.x() * scale + 1.0) * 0.5 * Theme::partPreviewImageSize,
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(it.y() * scale + 1.0) * 0.5 * Theme::partPreviewImageSize));
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}
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QPainterPath path;
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path.addPolygon(polygon);
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painter.fillPath(path, brush);
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painter.drawPath(path);
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painter.end();
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return image;
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}
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const QImage *cutFacePreviewImage(dust3d::CutFace cutFace)
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{
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auto findItem = g_standardCutFaceMap.find((int)cutFace);
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if (findItem != g_standardCutFaceMap.end())
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return findItem->second;
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std::vector<dust3d::Vector2> cutTemplate = dust3d::CutFaceToPoints(cutFace);
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QImage *image = buildCutFaceTemplatePreviewImage(cutTemplate);
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g_standardCutFaceMap.insert({(int)cutFace, image});
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return image;
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}
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