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Issue #10: Ability to cancel the operation

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This commit is contained in:
Jakub Melka
2022-02-04 20:03:23 +01:00
parent 284f0c4db8
commit 49cab7937a
15 changed files with 302 additions and 61 deletions
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71
Pdf4QtLib/sources/pdfpattern.cpp
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@ -608,10 +608,16 @@ ShadingType PDFFunctionShading::getShadingType() const
return ShadingType::Function;
}
PDFMesh PDFFunctionShading::createMesh(const PDFMeshQualitySettings& settings, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
PDFMesh PDFFunctionShading::createMesh(const PDFMeshQualitySettings& settings,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter,
const PDFOperationControl* operationControl) const
{
PDFMesh mesh;
Q_UNUSED(operationControl);
QMatrix patternSpaceToDeviceSpaceMatrix = getPatternSpaceToDeviceSpaceMatrix(settings);
QMatrix domainToDeviceSpaceMatrix = m_domainToTargetTransform * patternSpaceToDeviceSpaceMatrix;
QLineF topLine(m_domain.topLeft(), m_domain.topRight());
@ -916,10 +922,16 @@ PDFShadingSampler* PDFFunctionShading::createSampler(QMatrix userSpaceToDeviceSp
return new PDFFunctionShadingSampler(this, userSpaceToDeviceSpaceMatrix);
}
PDFMesh PDFAxialShading::createMesh(const PDFMeshQualitySettings& settings, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
PDFMesh PDFAxialShading::createMesh(const PDFMeshQualitySettings& settings,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter,
const PDFOperationControl* operationControl) const
{
PDFMesh mesh;
Q_UNUSED(operationControl);
QMatrix patternSpaceToDeviceSpaceMatrix = getPatternSpaceToDeviceSpaceMatrix(settings);
QPointF p1 = patternSpaceToDeviceSpaceMatrix.map(m_startPoint);
QPointF p2 = patternSpaceToDeviceSpaceMatrix.map(m_endPoint);
@ -1423,10 +1435,16 @@ ShadingType PDFRadialShading::getShadingType() const
return ShadingType::Radial;
}
PDFMesh PDFRadialShading::createMesh(const PDFMeshQualitySettings& settings, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
PDFMesh PDFRadialShading::createMesh(const PDFMeshQualitySettings& settings,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter,
const PDFOperationControl* operationControl) const
{
PDFMesh mesh;
Q_UNUSED(operationControl);
QMatrix patternSpaceToDeviceSpaceMatrix = getPatternSpaceToDeviceSpaceMatrix(settings);
QPointF p1 = patternSpaceToDeviceSpaceMatrix.map(m_startPoint);
QPointF p2 = patternSpaceToDeviceSpaceMatrix.map(m_endPoint);
@ -2239,10 +2257,16 @@ bool PDFFreeFormGouradTriangleShading::processTriangles(InitializeFunction initi
return true;
}
PDFMesh PDFFreeFormGouradTriangleShading::createMesh(const PDFMeshQualitySettings& settings, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
PDFMesh PDFFreeFormGouradTriangleShading::createMesh(const PDFMeshQualitySettings& settings,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter,
const PDFOperationControl* operationControl) const
{
PDFMesh mesh;
Q_UNUSED(operationControl);
auto addTriangle = [this, &settings, &mesh, cms, intent, reporter](const VertexData* va, const VertexData* vb, const VertexData* vc)
{
const uint32_t via = va->index;
@ -2401,10 +2425,16 @@ bool PDFLatticeFormGouradTriangleShading::processTriangles(InitializeFunction in
return true;
}
PDFMesh PDFLatticeFormGouradTriangleShading::createMesh(const PDFMeshQualitySettings& settings, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
PDFMesh PDFLatticeFormGouradTriangleShading::createMesh(const PDFMeshQualitySettings& settings,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter,
const PDFOperationControl* operationControl) const
{
PDFMesh mesh;
Q_UNUSED(operationControl);
auto addTriangle = [this, &settings, &mesh, cms, intent, reporter](const VertexData* va, const VertexData* vb, const VertexData* vc)
{
const uint32_t via = va->index;
@ -3071,7 +3101,11 @@ PDFTensorPatches PDFTensorProductPatchShading::createPatches(QMatrix userSpaceTo
return patches;
}
PDFMesh PDFTensorProductPatchShading::createMesh(const PDFMeshQualitySettings& settings, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
PDFMesh PDFTensorProductPatchShading::createMesh(const PDFMeshQualitySettings& settings,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter,
const PDFOperationControl* operationControl) const
{
PDFMesh mesh;
@ -3082,7 +3116,7 @@ PDFMesh PDFTensorProductPatchShading::createMesh(const PDFMeshQualitySettings& s
throw PDFException(PDFTranslationContext::tr("Invalid data in tensor product patch shading."));
}
fillMesh(mesh, getPatternSpaceToDeviceSpaceMatrix(settings.userSpaceToDeviceSpaceMatrix), settings, patches, cms, intent, reporter);
fillMesh(mesh, getPatternSpaceToDeviceSpaceMatrix(settings.userSpaceToDeviceSpaceMatrix), settings, patches, cms, intent, reporter, operationControl);
return mesh;
}
@ -3228,7 +3262,8 @@ void PDFTensorProductPatchShadingBase::fillMesh(PDFMesh& mesh,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter,
bool fastAlgorithm) const
bool fastAlgorithm,
const PDFOperationControl* operationControl) const
{
// We implement algorithm similar to Ruppert's algorithm (see https://en.wikipedia.org/wiki/Ruppert%27s_algorithm), but
// we do not need a mesh for FEM calculation, so we do not care about quality of the triangles (we can have triangles with
@ -3301,6 +3336,13 @@ void PDFTensorProductPatchShadingBase::fillMesh(PDFMesh& mesh,
while (!unfinishedTriangles.empty())
{
// Mesh generation is cancelled
if (PDFOperationControl::isOperationCancelled(operationControl))
{
mesh = PDFMesh();
return;
}
Triangle triangle = unfinishedTriangles.back();
unfinishedTriangles.pop_back();
@ -3417,12 +3459,13 @@ void PDFTensorProductPatchShadingBase::fillMesh(PDFMesh& mesh,
const PDFTensorPatches& patches,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter) const
PDFRenderErrorReporter* reporter,
const PDFOperationControl* operationControl) const
{
const bool fastAlgorithm = patches.size() > 16;
for (const auto& patch : patches)
{
fillMesh(mesh, settings, patch, cms, intent, reporter, fastAlgorithm);
fillMesh(mesh, settings, patch, cms, intent, reporter, fastAlgorithm, operationControl);
}
// Create bounding path
@ -3655,7 +3698,11 @@ PDFTensorPatches PDFCoonsPatchShading::createPatches(QMatrix userSpaceToDeviceSp
return patches;
}
PDFMesh PDFCoonsPatchShading::createMesh(const PDFMeshQualitySettings& settings, const PDFCMS* cms, RenderingIntent intent, PDFRenderErrorReporter* reporter) const
PDFMesh PDFCoonsPatchShading::createMesh(const PDFMeshQualitySettings& settings,
const PDFCMS* cms,
RenderingIntent intent,
PDFRenderErrorReporter* reporter,
const PDFOperationControl* operationControl) const
{
PDFMesh mesh;
PDFTensorPatches patches = createPatches(settings.userSpaceToDeviceSpaceMatrix, true);
@ -3665,7 +3712,7 @@ PDFMesh PDFCoonsPatchShading::createMesh(const PDFMeshQualitySettings& settings,
throw PDFException(PDFTranslationContext::tr("Invalid data in coons patch shading."));
}
fillMesh(mesh, getPatternSpaceToDeviceSpaceMatrix(settings), settings, patches, cms, intent, reporter);
fillMesh(mesh, getPatternSpaceToDeviceSpaceMatrix(settings), settings, patches, cms, intent, reporter, operationControl);
return mesh;
}