Qt&Vtk-014-CustomLinkView
【摘要】
这个Demo已经拖了好久好久了，今天整理文章的时候，发现躲不过了呀，前面的几篇都发出了。
文章目录
1 官方示例展示2 官方源码2.1CustomLinkView.h2.2 Custom...
这个Demo已经拖了好久好久了，今天整理文章的时候，发现躲不过了呀，前面的几篇都发出了。
1 官方示例展示
啊呀，今天终于更新到这里了，一直拖延症到现在，还是没有弄明白这个项目是干啥的。仅仅展示官方代码，在项目中建了对应的文件。不要给我寄刀片哈。
点击打开按钮，显示让我打开一个XML文档，实在搞不懂这个项目是干啥的。
2 官方源码
2.1CustomLinkView.h
#ifndef CustomLinkView_H
#define CustomLinkView_H
#include "vtkSmartPointer.h" // Required for smart pointer internal ivars.
#include <QMainWindow>
// Forward Qt class declarations
class Ui_CustomLinkView;
// Forward VTK class declarations
class vtkCommand;
class vtkEventQtSlotConnect;
class vtkGraphLayoutView;
class vtkObject;
class vtkQtTableView;
class vtkQtTreeView;
class vtkXMLTreeReader;
class CustomLinkView : public QMainWindow
{
Q_OBJECT
public:
// Constructor/Destructor
CustomLinkView();
~CustomLinkView() override;
public slots:
virtual void slotOpenXMLFile();
virtual void slotExit();
protected:
protected slots:
public slots:
// Qt signal (produced by vtkEventQtSlotConnect) will be connected to
// this slot.
// Full signature of the slot could be:
// MySlot(vtkObject* caller, unsigned long vtk_event,
// void* clientData, void* callData, vtkCommand*)
void selectionChanged(vtkObject*, unsigned long, void*, void* callData);
private:
// Methods
void SetupCustomLink();
// Members
vtkSmartPointer<vtkXMLTreeReader> XMLReader;
vtkSmartPointer<vtkGraphLayoutView> GraphView;
vtkSmartPointer<vtkQtTreeView> TreeView;
vtkSmartPointer<vtkQtTableView> TableView;
vtkSmartPointer<vtkQtTreeView> ColumnView;
// This class converts a vtkEvent to QT signal.
vtkSmartPointer<vtkEventQtSlotConnect> Connections;
// Designer form
Ui_CustomLinkView *ui;
};
#endif // CustomLinkView_H
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2.2 CustomLinkView.cpp
#include "ui_CustomLinkView.h"
#include "CustomLinkView.h"
#include <vtkAnnotationLink.h>
#include <vtkCommand.h>
#include <vtkDataObjectToTable.h>
#include <vtkDataRepresentation.h>
#include <vtkEventQtSlotConnect.h>
#include "vtkGenericOpenGLRenderWindow.h"
#include <vtkGraphLayoutView.h>
#include <vtkQtTableView.h>
#include <vtkQtTreeView.h>
#include <vtkRenderer.h>
#include <vtkSelection.h>
#include <vtkSelectionNode.h>
#include <vtkTable.h>
#include <vtkTableToGraph.h>
#include <vtkTreeLayoutStrategy.h>
#include <vtkViewTheme.h>
#include <vtkViewUpdater.h>
#include <vtkXMLTreeReader.h>
#include <QDir>
#include <QFileDialog>
#include <QTreeView>
#include "vtkSmartPointer.h"
#define VTK_CREATE(type, name) \
vtkSmartPointer<type> name = vtkSmartPointer<type>::New()
// Constructor
CustomLinkView::CustomLinkView()
{
this->ui = new Ui_CustomLinkView;
this->ui->setupUi(this);
vtkNew<vtkGenericOpenGLRenderWindow> renderWindow;
this->ui->vtkGraphViewWidget->SetRenderWindow(renderWindow);
this->XMLReader = vtkSmartPointer<vtkXMLTreeReader>::New();
this->GraphView = vtkSmartPointer<vtkGraphLayoutView>::New();
this->TreeView = vtkSmartPointer<vtkQtTreeView>::New();
this->TableView = vtkSmartPointer<vtkQtTableView>::New();
this->ColumnView = vtkSmartPointer<vtkQtTreeView>::New();
this->ColumnView->SetUseColumnView(1);
// Tell the table view to sort selections that it receives (but does
// not initiate) to the top
this->TableView->SetSortSelectionToTop(true);
// Set widgets for the tree and table views
this->ui->treeFrame->layout()->addWidget(this->TreeView->GetWidget());
this->ui->tableFrame->layout()->addWidget(this->TableView->GetWidget());
this->ui->columnFrame->layout()->addWidget(this->ColumnView->GetWidget());
// Graph View needs to get my render window
this->GraphView->SetInteractor(
this->ui->vtkGraphViewWidget->GetInteractor());
this->GraphView->SetRenderWindow(
this->ui->vtkGraphViewWidget->GetRenderWindow());
// Set up the theme on the graph view :)
vtkViewTheme* theme = vtkViewTheme::CreateNeonTheme();
this->GraphView->ApplyViewTheme(theme);
theme->Delete();
// Set up action signals and slots
connect(this->ui->actionOpenXMLFile, SIGNAL(triggered()), this,
SLOT(slotOpenXMLFile()));
connect(this->ui->actionExit, SIGNAL(triggered()), this,
SLOT(slotExit()));
// Apply application stylesheet
QString css =
"* { font: bold italic 18px \"Calibri\"; color: midnightblue }";
css +=
"QTreeView { font: bold italic 16px \"Calibri\"; color: midnightblue }";
//qApp->setStyleSheet(css); // Seems to cause a bug on some systems
// But at least it's here as an example
this->GraphView->Render();
};
// Set up the annotation between the vtk and qt views
void CustomLinkView::SetupCustomLink()
{
this->TreeView->GetRepresentation()->SetSelectionType(
vtkSelectionNode::PEDIGREEIDS);
this->TableView->GetRepresentation()->SetSelectionType(
vtkSelectionNode::PEDIGREEIDS);
this->ColumnView->GetRepresentation()->SetSelectionType(
vtkSelectionNode::PEDIGREEIDS);
this->GraphView->GetRepresentation()->SetSelectionType(
vtkSelectionNode::PEDIGREEIDS);
// Set up the theme on the graph view :)
vtkViewTheme* theme = vtkViewTheme::CreateNeonTheme();
this->GraphView->ApplyViewTheme(theme);
this->GraphView->Update();
theme->Delete();
// Create vtkEventQtSlotConnect and make the connections.
Connections = vtkEventQtSlotConnect::New();
// Make the connection here.
// Requires vtkObject which generates the event of type
// vtkCommand::SelectionChangedEvent, pointer to object
// which has the given slot. vtkEvent of type SelectionChangedEvent
// from reach representation should invoke selectionChanged.
Connections->Connect(
this->GraphView->GetRepresentation(),
vtkCommand::SelectionChangedEvent,
this,
SLOT(selectionChanged(vtkObject*, unsigned long, void*, void*)));
Connections->Connect(
this->TreeView->GetRepresentation(),
vtkCommand::SelectionChangedEvent,
this,
SLOT(selectionChanged(vtkObject*, unsigned long, void*, void*)));
Connections->Connect(
this->TableView->GetRepresentation(),
vtkCommand::SelectionChangedEvent,
this,
SLOT(selectionChanged(vtkObject*, unsigned long, void*, void*)));
Connections->Connect(
this->ColumnView->GetRepresentation(),
vtkCommand::SelectionChangedEvent,
this,
SLOT(selectionChanged(vtkObject*, unsigned long, void*, void*)));
}
CustomLinkView::~CustomLinkView()
{
}
// Action to be taken upon graph file open
void CustomLinkView::slotOpenXMLFile()
{
// Browse for and open the file
QDir dir;
// Open the text data file
QString fileName = QFileDialog::getOpenFileName(
this,
"Select the text data file",
QDir::homePath(),
"XML Files (*.xml);;All Files (*.*)");
if (fileName.isNull())
{
cerr << "Could not open file" << endl;
return;
}
// Create XML reader
this->XMLReader->SetFileName( fileName.toLatin1() );
this->XMLReader->ReadTagNameOff();
this->XMLReader->Update();
// Set up some hard coded parameters for the graph view
this->GraphView->SetVertexLabelArrayName("id");
this->GraphView->VertexLabelVisibilityOn();
this->GraphView->SetVertexColorArrayName("VertexDegree");
this->GraphView->ColorVerticesOn();
this->GraphView->SetEdgeColorArrayName("edge id");
this->GraphView->ColorEdgesOn();
// Create a tree layout strategy
VTK_CREATE(vtkTreeLayoutStrategy, treeStrat);
treeStrat->RadialOn();
treeStrat->SetAngle(360);
treeStrat->SetLogSpacingValue(1);
this->GraphView->SetLayoutStrategy(treeStrat);
// Set the input to the graph view
this->GraphView->SetRepresentationFromInputConnection(
this->XMLReader->GetOutputPort());
// Okay now do an explicit reset camera so that
// the user doesn't have to move the mouse
// in the window to see the resulting graph
this->GraphView->ResetCamera();
// Now hand off tree to the tree view
this->TreeView->SetRepresentationFromInputConnection(
this->XMLReader->GetOutputPort());
this->ColumnView->SetRepresentationFromInputConnection(
this->XMLReader->GetOutputPort());
// Extract a table and give to table view
VTK_CREATE(vtkDataObjectToTable, toTable);
toTable->SetInputConnection(this->XMLReader->GetOutputPort());
toTable->SetFieldType(vtkDataObjectToTable::VERTEX_DATA);
this->TableView->SetRepresentationFromInputConnection(
toTable->GetOutputPort());
this->SetupCustomLink();
// Hide an unwanted column in the tree view.
this->TreeView->HideColumn(2);
// Turn on some colors.
this->TreeView->SetColorArrayName("vertex id");
this->TreeView->ColorByArrayOn();
// Update all the views
this->TreeView->Update();
this->TableView->Update();
this->ColumnView->Update();
// Force a render on the graph view
this->GraphView->Render();
}
void CustomLinkView::slotExit()
{
qApp->exit();
}
// This defines the QT slot. They way it works is first get the vtkSelection,
// push it to the default vtkAnnotationLink associated with each
// vtkDataRepresentation of each view type and then call Update or
// Render (if it is a vtkRenderView) on each view.
void CustomLinkView::selectionChanged(vtkObject*,
unsigned long,
void* vtkNotUsed(clientData),
void* callData)
{
vtkSelection* selection = reinterpret_cast<vtkSelection*>(callData);
if(selection)
{
this->GraphView->GetRepresentation()->GetAnnotationLink()->
SetCurrentSelection(selection);
this->TreeView->GetRepresentation()->GetAnnotationLink()->
SetCurrentSelection(selection);
this->TableView->GetRepresentation()->GetAnnotationLink()->
SetCurrentSelection(selection);
this->ColumnView->GetRepresentation()->GetAnnotationLink()->
SetCurrentSelection(selection);
this->TreeView->Update();
this->TableView->Update();
this->ColumnView->Update();
this->GraphView->Render();
}
}
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★ 源码 ★
源码分享一时爽，一直分享一直爽， 链接如下：
文章来源: dreamlife.blog.csdn.net，作者：DreamLife.，版权归原作者所有，如需转载，请联系作者。
原文链接：dreamlife.blog.csdn.net/article/details/119632280
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