Working with Visual Brush | C++
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]Add Grid using Visual Brush
Aspose.Page for C++ API lets you add a grid to the XPS document. Grid can be added to new as well as existing XPS documents using simple lines of code in C++ applications. This can be achieved using XpsVisualBrush class that is used to specify the properties of the grid with XpsPathGeometry and XpsCanvas objects. To add a grid to the XPS document, use the following steps.
- Create a Document object using the XpsDocument class
- Create an XpsPathGeometry object with defined required Segments
- Create an object of XpsCanvas and set rendering Transformation
- Set Fill and Opacity properties
- Save the document using the Save method
1For complete examples and data files, please go to https://github.com/aspose-page/Aspose.Page-for-C
2auto doc = System::MakeObject<XpsDocument>();
3// Geometry for magenta grid VisualBrush
4System::SharedPtr<XpsPathGeometry> pathGeometry = doc->CreatePathGeometry();
5pathGeometry->AddSegment(doc->CreatePolyLineSegment(System::MakeArray<System::Drawing::PointF>({ System::Drawing::PointF(240.f, 5.f), System::Drawing::PointF(240.f, 310.f), System::Drawing::PointF(0.f, 310.f) })));
6pathGeometry->idx_get(0)->set_StartPoint(System::Drawing::PointF(0.f, 5.f));
7
8// Canvas for magenta grid VisualBrush
9System::SharedPtr<XpsCanvas> visualCanvas = doc->CreateCanvas();
10
11System::SharedPtr<XpsPath> visualPath = visualCanvas->AddPath(doc->CreatePathGeometry(u"M 0,4 L 4,4 4,0 6,0 6,4 10,4 10,6 6,6 6,10 4,10 4,6 0,6 Z"));
12visualPath->set_Fill(doc->CreateSolidColorBrush(doc->CreateColor(1.f, .61f, 0.1f, 0.61f)));
13
14System::SharedPtr<XpsPath> gridPath = doc->CreatePath(pathGeometry);
15//Create Visual Brush, it is specified by some XPS fragment (vector graphics and glyphs)
16gridPath->set_Fill(doc->CreateVisualBrush(visualCanvas, System::Drawing::RectangleF(0.f, 0.f, 10.f, 10.f), System::Drawing::RectangleF(0.f, 0.f, 10.f, 10.f)));
17(System::DynamicCast<Aspose::Page::Xps::XpsModel::XpsVisualBrush>(gridPath->get_Fill()))->set_TileMode(Aspose::Page::Xps::XpsModel::XpsTileMode::Tile);
18// New canvas
19System::SharedPtr<XpsCanvas> canvas = doc->AddCanvas();
20canvas->set_RenderTransform(doc->CreateMatrix(1.f, 0.f, 0.f, 1.f, 268.f, 70.f));
21// Add grid
22canvas->AddPath(gridPath);
23// Red transparent rectangle in the middle top
24System::SharedPtr<XpsPath> path = canvas->AddPath(doc->CreatePathGeometry(u"M 30,20 l 258.24,0 0,56.64 -258.24,0 Z"));
25path = canvas->AddPath(doc->CreatePathGeometry(u"M 10,10 L 228,10 228,100 10,100"));
26path->set_Fill(doc->CreateSolidColorBrush(doc->CreateColor(1.0f, 0.0f, 0.0f)));
27path->set_Opacity(0.7f);
28// Save resultant XPS document
29doc->Save(outDir() + u"AddGrid_out.xps");