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mygraphics.cpp
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1444 lines (1280 loc) · 43.1 KB
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#include "aqp/alt_key.hpp"
#include "aqp/aqp.hpp"
#include "mygraphics.h"
#include "ui_mygraphics.h"
#include "item/MyItem.h"
#include "qtvariantproperty.h"
#include "qttreepropertybrowser.h"
#include <QtGui>
#include <QAction>
#include <QApplication>
#include <QClipboard>
#include <QCloseEvent>
#include <QDesktopWidget>
#include <QDockWidget>
#include <QFile>
#include <QFileDialog>
#include <QGraphicsItemGroup>
#include <QGraphicsScene>
#include <QImageWriter>
#include <QMenu>
#include <QMenuBar>
#ifdef ANIMATE_ALIGNMENT
#include <QPropertyAnimation>
#endif
#ifdef ANIMATE_IN_PARALLEL
#include <QParallelAnimationGroup>
#endif
#include <QPrintDialog>
#include <QSettings>
#include <QStatusBar>
#include <QTimer>
#include <QToolBar>
#ifdef USE_STL
#include <algorithm>
#endif
#include <cmath>
#include <limits>
#include <stdlib.h>
#include <QDebug>
#include <QSvgGenerator>
#include "undocommands/commands.h"
const qreal itemzValue = 1.0;
const int OffsetIncrement = 5;
const qint32 MagicNumber = 0x5A93DE5;
const qint16 VersionNumber = 1;
const QString MostRecentFile("MostRecentFile");
const QString MimeType = "application/MyGraphic";
MyGraphics::MyGraphics(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MyGraphics),
pasteOffset(OffsetIncrement), z_value(itemzValue), maxValue(-10000.0)
{
ui->setupUi(this);
undoStack = new QUndoStack(this);
connect(ui->iRectB, SIGNAL(clicked()), this, SLOT(addCustomItem()));
connect(ui->iEllipseB, SIGNAL(clicked()), this, SLOT(addCustomItem()));
connect(ui->iTextB, SIGNAL(clicked()), this, SLOT(addCustomItem()));
printer = new QPrinter(QPrinter::HighResolution);
createActions();
createMenusAndToolBars();
createConnections();
createUndoView();
scene = new MyGraphicsScene(this);
scene->setSceneRect(QRectF(0, 0, 800, 800));
originP = QPointF(scene->width()/2, scene->height()/2);
connect(scene, SIGNAL(itemClicked(QGraphicsItem*)), this, SLOT(itemClicked(QGraphicsItem*)));
connect(scene, SIGNAL(itemsMoving(QGraphicsItem *)),this, SLOT(itemsMoving(QGraphicsItem *)));
connect(scene, SIGNAL(itemsMoved(QMap<QGraphicsItem*,QPointF>, QMap<QGraphicsItem*,QPointF>)),
this, SLOT(itemsMoved(QMap<QGraphicsItem*,QPointF>, QMap<QGraphicsItem*,QPointF>)));
connect(scene, SIGNAL(selectionChanged()), this, SLOT(selectionChanged()));
connect(this, SIGNAL(firstSelectedItem(QGraphicsItem*)), scene, SLOT(firstSelectedItem(QGraphicsItem*)));
view = new GluGraphicsView();
view->setScene(scene);
setCentralWidget(view);
currentItem = 0;
variantManager = new QtVariantPropertyManager(this);
connect(variantManager, SIGNAL(valueChanged(QtProperty *, const QVariant &)),
this, SLOT(valueChanged(QtProperty *, const QVariant &)));
QtVariantEditorFactory *variantFactory = new QtVariantEditorFactory(this);
QDockWidget *dock = new QDockWidget(tr("属性"),this);
addDockWidget(Qt::RightDockWidgetArea, dock);
propertyEditor = new QtTreePropertyBrowser(dock);
propertyEditor->setFactoryForManager(variantManager, variantFactory);
dock->setWidget(propertyEditor);
dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
readSettings();
}
MyGraphics::~MyGraphics()
{
// delete printer;
// delete ui;
}
//操作历史
void MyGraphics::createUndoView()
{
undoView = new QUndoView(undoStack);
undoView->setWindowTitle(tr("Command List"));
undoView->show();
undoView->setAttribute(Qt::WA_QuitOnClose, false);
}
void MyGraphics::showEvent(QShowEvent *event)
{
QMainWindow::showEvent(event);
// QSettings settings;
// QString filename = settings.value(MostRecentFile).toString();
// if (filename.isEmpty() || filename == tr("Unnamed"))
QTimer::singleShot(0, this, SLOT(fileNew()));
// else {
// setWindowFilePath(filename);
// QTimer::singleShot(0, this, SLOT(loadFile()));
// }
}
void MyGraphics::closeEvent(QCloseEvent *event)
{
if (okToClearData()) {
writeSettings();
delete printer;
delete ui;
event->accept();
}
else
event->ignore();
}
//新建文件
void MyGraphics::fileNew()
{
if (!okToClearData())
return;
clear();
this->setWindowFilePath(tr("Unnamed"));
setDirty(false);
}
//打开文件
void MyGraphics::fileOpen()
{
if (!okToClearData())
return;
const QString &filename = QFileDialog::getOpenFileName(this,
tr("%1 - Open").arg(QApplication::applicationName()),
".", tr("Glu Graphics (*.gg);;All file(*)(*.*)"));
if (filename.isEmpty())
return;
setWindowFilePath(filename);
loadFile();
}
//添加item
void MyGraphics::addCustomItem()
{
QToolButton *itemButton = qobject_cast<QToolButton *>(sender());
QString itemType = itemButton->objectName();
int count = scene->items().size();
maxValue = -10000.0;
if (count > 0)
foreach (QGraphicsItem *item, scene->items())
{
maxzValue(item->zValue());
}
else
maxValue = 0.0;
QUndoCommand *addCommand = new AddCommand(itemType, scene ,maxValue+1);
undoStack->push(addCommand);
// z_value++;
// QGraphicsItem *item = 0;
// if (itemType == "iRectB")
// {
// item = new iRect;
// }
// else if (itemType == "iEllipseB")
// {
// item = new iEllipse;
// }
// else if (itemType == "iTextB")
// {
// item = new iText;
// }
// scene->addItem(item);
// scene->selectedItem(item);
setDirty(true);
}
bool MyGraphics::okToClearData()
{
if (isWindowModified())
return AQP::okToClearData(&MyGraphics::fileSave, this,
tr("Unsaved changes"), tr("Save unsaved changes?"));
return true;
}
//输出视图
void MyGraphics::fileExport()
{
QString suffixes = AQP::filenameFilter(tr("Bitmap image"),
QImageWriter::supportedImageFormats());
suffixes += tr(";;Vector image (*.svg)");
const QString filename = QFileDialog::getSaveFileName(this,
tr("%1 - Export").arg(QApplication::applicationName()),
".", suffixes);
if (filename.isEmpty())
return;
if (filename.toLower().endsWith(".svg"))
exportSvg(filename);
else
exportImage(filename);
}
//输出scene的内容
void MyGraphics::paintScene(QPainter *painter)
{
// bool showGrid = viewShowGridAction->isChecked();
// if (showGrid)
// viewShowGrid(false);
QList<QGraphicsItem*> items = scene->selectedItems();
scene->clearSelection();
scene->render(painter);
// if (showGrid)
// viewShowGrid(true);
foreach (QGraphicsItem *item, items)
item->setSelected(true);
selectionChanged();
}
//输出为svg
void MyGraphics::exportSvg(const QString &filename)
{
QSvgGenerator svg;
svg.setFileName(filename);
svg.setSize(printer->paperSize(QPrinter::Point).toSize());
{
QPainter painter(&svg);
paintScene(&painter);
}
statusBar()->showMessage(tr("Exported %1").arg(filename),
1000);
}
//输出为图片
void MyGraphics::exportImage(const QString &filename)
{
QImage image(printer->paperSize(QPrinter::Point).toSize(),
QImage::Format_ARGB32);
{
QPainter painter(&image);
painter.setRenderHints(QPainter::Antialiasing|
QPainter::TextAntialiasing);
paintScene(&painter);
}
if (image.save(filename))
statusBar()->showMessage(tr("Exported %1").arg(filename),
2000);
else
AQP::warning(this, tr("Error"), tr("Failed to export: %1")
.arg(filename));
}
//打印
void MyGraphics::filePrint()
{
QPrintDialog dialog(printer);
if (dialog.exec()) {
{
QPainter painter(printer);
paintScene(&painter);
}
statusBar()->showMessage(tr("Printed %1")
.arg(windowFilePath()), 2000);
}
}
//复制
void MyGraphics::editCopy()
{
QList<QGraphicsItem*> items = scene->selectedItems();
if (items.isEmpty())
return;
pasteOffset = OffsetIncrement;
copyItems(items);
}
//剪切
void MyGraphics::editCut()
{
QList<QGraphicsItem*> items = scene->selectedItems();
if (items.isEmpty())
return;
copyItems(items);
// QListIterator<QGraphicsItem*> i(items);
// while (i.hasNext()) {
//#if QT_VERSION >= 0x040600
// QScopedPointer<QGraphicsItem> item(i.next());
// scene->removeItem(item.data());
//#else
// QGraphicsItem *item = i.next();
// scene->removeItem(item);
// delete item;
//#endif
// }
QUndoCommand *deleteCommand = new DeleteCommand(Cut,scene);
undoStack->push(deleteCommand);
setDirty(true);
}
//复制item实现
void MyGraphics::copyItems(const QList<QGraphicsItem*> &items)
{
QByteArray copiedItems;
QDataStream out(&copiedItems, QIODevice::WriteOnly);
writeItems(out, items);
QMimeData *mimeData = new QMimeData;
mimeData->setData(MimeType, copiedItems);
QClipboard *clipboard = QApplication::clipboard();
clipboard->setMimeData(mimeData);
}
//粘贴
void MyGraphics::editPaste()
{
QClipboard *clipboard = QApplication::clipboard();
const QMimeData *mimeData = clipboard->mimeData();
if (!mimeData)
return;
if (mimeData->hasFormat(MimeType)) {
QByteArray copiedItems = mimeData->data(MimeType);
QDataStream in(&copiedItems, QIODevice::ReadOnly);
// readItems(in, pasteOffset);
undoStack->push(new PasteCommand(readItems(in, pasteOffset), scene, true, maxValue));
pasteOffset += OffsetIncrement;
}
else
return;
setDirty(true);
}
//创建Action
void MyGraphics::createActions()
{
fileNewAction = new QAction(QIcon(":images/filenew.png"),
tr("New..."), this);
fileNewAction->setShortcuts(QKeySequence::New);
fileOpenAction = new QAction(QIcon(":images/fileopen.png"),
tr("Open..."), this);
fileOpenAction->setShortcuts(QKeySequence::Open);
fileSaveAction = new QAction(QIcon(":images/filesave.png"),
tr("Save"), this);
fileSaveAction->setShortcuts(QKeySequence::Save);
fileSaveAsAction = new QAction(QIcon(":images/filesave.png"),
tr("Save As..."), this);
fileSaveAsAction->setShortcuts(QKeySequence::SaveAs);
fileExportAction = new QAction(QIcon(":images/fileexport.png"),
tr("Export..."), this);
filePrintAction = new QAction(QIcon(":images/fileprint.png"),
tr("Print..."), this);
for (int i = 0; i < MaxRecentFiles; ++i) {
recentFileActions[i] = new QAction(this);
recentFileActions[i]->setVisible(false);
connect(recentFileActions[i], SIGNAL(triggered()),
this, SLOT(openRecentFile()));
}
fileQuitAction = new QAction(QIcon(":images/filequit.png"),
tr("Quit"), this);
fileQuitAction->setShortcuts(QKeySequence::Quit);
editUndoAction = undoStack->createUndoAction(this, tr("&Undo"));
editUndoAction->setIcon(QIcon(":images/undo.png"));
editUndoAction->setShortcuts(QKeySequence::Undo);
editRedoAction = undoStack->createRedoAction(this, tr("&Redo"));
editRedoAction->setIcon(QIcon(":images/redo.png"));
editRedoAction->setShortcuts(QKeySequence::Redo);
editCopyAction = new QAction(QIcon(":images/editcopy.png"), tr("&Copy"),
this);
editCopyAction->setShortcuts(QKeySequence::Copy);
editCutAction = new QAction(QIcon(":images/editcut.png"), tr("Cu&t"),
this);
editCutAction->setShortcuts(QKeySequence::Cut);
editPasteAction = new QAction(QIcon(":images/editpaste.png"),
tr("&Paste"), this);
editPasteAction->setShortcuts(QKeySequence::Paste);
editDeleteAction = new QAction(QIcon(":images/editdelete.png"),
tr("&Delete"), this);
editDeleteAction->setShortcuts(QKeySequence::Delete);
editCleanScreenAction = new QAction(QIcon(":images/editclean.png"),
tr("CleanScreen"), this);
editAlignmentAction = new QAction(QIcon(":images/align-left.png"),
tr("Alignment"), this);
editAlignmentAction->setData(Qt::AlignLeft);
editAlignLeftAction = new QAction(QIcon(":images/align-left.png"),
tr("Left"), this);
editAlignLeftAction->setData(Qt::AlignLeft);
editAlignRightAction = new QAction(QIcon(":images/align-right.png"),
tr("Right"), this);
editAlignRightAction->setData(Qt::AlignRight);
editAlignTopAction = new QAction(QIcon(":images/align-top.png"),
tr("Top"), this);
editAlignTopAction->setData(Qt::AlignTop);
editAlignBottomAction = new QAction(QIcon(":images/align-bottom.png"),
tr("Bottom"), this);
editAlignBottomAction->setData(Qt::AlignBottom);
editBringToFrontAction = new QAction(QIcon(":images/bringtofront.png"),
tr("BringToFront"), this);
editSendToBackAction = new QAction(QIcon(":images/sendtoback.png"),
tr("SentToBack"), this);
viewZoomInAction = new QAction(QIcon(":images/zoom_in.png"),
tr("Zoom In"), this);
viewZoomInAction->setShortcut(tr("+"));
viewZoomOutAction = new QAction(QIcon(":images/zoom_out.png"),
tr("Zoom Out"), this);
viewZoomOutAction->setShortcut(tr("-"));
viewRestoreAction = new QAction(QIcon(":images/restore.png"),
tr("View Restore"), this);
}
//创建menu和toolbar
void MyGraphics::createMenusAndToolBars()
{
QAction *separator = 0;
setUnifiedTitleAndToolBarOnMac(true);
QMenu *fileMenu = menuBar()->addMenu(tr("File"));
QToolBar *fileToolBar = addToolBar(tr("File"));
populateMenuAndToolBar(fileMenu, fileToolBar, QList<QAction*>()
<< fileNewAction << fileOpenAction << fileSaveAction
<< fileExportAction << separator << filePrintAction);
fileMenu->insertAction(fileExportAction, fileSaveAsAction);
fileMenu->addSeparator();
separatorAction = fileMenu->addSeparator();
for (int i = 0; i < MaxRecentFiles; ++i)
fileMenu->addAction(recentFileActions[i]);
separatorAction = fileMenu->addSeparator();
fileMenu->addAction(fileQuitAction);
QMenu *alignmentMenu = new QMenu(tr("Align"), this);
foreach (QAction *action, QList<QAction*>()
<< editAlignLeftAction << editAlignRightAction
<< editAlignTopAction << editAlignBottomAction)
alignmentMenu->addAction(action);
editAlignmentAction->setMenu(alignmentMenu);
QMenu *editMenu = menuBar()->addMenu(tr("Edit"));
QToolBar *editToolBar = addToolBar(tr("Edit"));
populateMenuAndToolBar(editMenu, editToolBar, QList<QAction*>()
<< editUndoAction << editRedoAction << separator
<< editCopyAction << editCutAction << editPasteAction
<< separator << editDeleteAction << editCleanScreenAction << separator
<< editAlignmentAction << editBringToFrontAction << editSendToBackAction);
QMenu *viewMenu = menuBar()->addMenu(tr("View"));
QToolBar *viewToolBar = addToolBar(tr("View"));
populateMenuAndToolBar(viewMenu, viewToolBar, QList<QAction*>()
<< viewZoomInAction << viewZoomOutAction << viewRestoreAction);
AQP::accelerateMenu(menuBar());
}
//创建连接
void MyGraphics::createConnections()
{
connect(fileNewAction, SIGNAL(triggered()),
this, SLOT(fileNew()));
connect(fileOpenAction, SIGNAL(triggered()),
this, SLOT(fileOpen()));
connect(fileSaveAction, SIGNAL(triggered()),
this, SLOT(fileSave()));
connect(fileSaveAsAction, SIGNAL(triggered()),
this, SLOT(fileSaveAs()));
connect(fileExportAction, SIGNAL(triggered()),
this, SLOT(fileExport()));
connect(filePrintAction, SIGNAL(triggered()),
this, SLOT(filePrint()));
connect(fileQuitAction, SIGNAL(triggered()),
this, SLOT(close()));
connect(editCopyAction, SIGNAL(triggered()),
this, SLOT(editCopy()));
connect(editCutAction, SIGNAL(triggered()),
this, SLOT(editCut()));
connect(editPasteAction, SIGNAL(triggered()),
this, SLOT(editPaste()));
connect(editDeleteAction, SIGNAL(triggered()),
this, SLOT(editDelete()));
connect(editCleanScreenAction, SIGNAL(triggered()),
this, SLOT(editCleanScreen()));
foreach (QAction *action, QList<QAction*>()
<< editAlignmentAction << editAlignLeftAction
<< editAlignRightAction << editAlignTopAction
<< editAlignBottomAction)
connect(action, SIGNAL(triggered()), this, SLOT(editAlign()));
connect(editBringToFrontAction, SIGNAL(triggered()),
this, SLOT(editBringToFront()));
connect(editSendToBackAction, SIGNAL(triggered()),
this, SLOT(editSendToBack()));
connect(viewZoomInAction, SIGNAL(triggered()),
this, SLOT(viewZoomIn()));
connect(viewZoomOutAction, SIGNAL(triggered()),
this, SLOT(viewZoomOut()));
connect(viewRestoreAction, SIGNAL(triggered()),
this, SLOT(viewRestore()));
}
void MyGraphics::populateCoordinates(const Qt::Alignment &alignment,
QVector<double> *coordinates,
const QList<QGraphicsItem *> &items)
{
QListIterator<QGraphicsItem*> i(items);
while (i.hasNext()) {
QRectF rect = i.next()->sceneBoundingRect();
switch (alignment) {
case Qt::AlignLeft:
coordinates->append(rect.x()); break;
case Qt::AlignRight:
coordinates->append(rect.x() + rect.width()); break;
case Qt::AlignTop:
coordinates->append(rect.y()); break;
case Qt::AlignBottom:
coordinates->append(rect.y() + rect.height()); break;
}
}
}
//item对齐
void MyGraphics::editAlign()
{
QAction *action = qobject_cast<QAction*>(sender());
if (!action)
return;
Qt::Alignment alignment = static_cast<Qt::Alignment>(
action->data().toInt());
if (action != editAlignmentAction) {
editAlignmentAction->setData(action->data());
editAlignmentAction->setIcon(action->icon());
}
QList<QGraphicsItem*> items = scene->selectedItems();
QVector<double> coordinates;
populateCoordinates(alignment, &coordinates, items);
double offset;
if (alignment == Qt::AlignLeft || alignment == Qt::AlignTop)
offset = *std::min_element(coordinates.constBegin(),
coordinates.constEnd());
else
offset = *std::max_element(coordinates.constBegin(),
coordinates.constEnd());
QList<QPointF> positions;
if (alignment == Qt::AlignLeft || alignment == Qt::AlignRight) {
for (int i = 0; i < items.count(); ++i)
positions << items.at(i)->pos() +
QPointF(offset - coordinates.at(i), 0);
}
else {
for (int i = 0; i < items.count(); ++i)
positions << items.at(i)->pos() +
QPointF(0, offset - coordinates.at(i));
}
animateAlignment(items, positions);
setDirty(true);
}
//创建populateMenuAndToolBar
void MyGraphics::populateMenuAndToolBar(QMenu *menu,
QToolBar *toolBar, QList<QAction*> actions)
{
#ifdef Q_WS_MAC
toolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
#endif
foreach (QAction *action, actions) {
if (!action) {
menu->addSeparator();
toolBar->addSeparator();
}
else {
menu->addAction(action);
toolBar->addAction(action);
}
}
}
void MyGraphics::animateAlignment(const QList<QGraphicsItem*> &items,
const QList<QPointF> &positions)
{
int duration = ((qApp->keyboardModifiers() & Qt::ShiftModifier)
!= Qt::ShiftModifier) ? 1000 : 5000;
#ifdef ANIMATE_IN_PARALLEL
QParallelAnimationGroup *group = new QParallelAnimationGroup;
#endif
for (int i = 0; i < items.count(); ++i) {
QObject *object = dynamic_cast<QObject*>(items.at(i));
if (!object)
continue;
QPropertyAnimation *animation = new QPropertyAnimation(
object, "pos", this);
animation->setDuration(duration);
animation->setEasingCurve(QEasingCurve::InOutBack);
#ifdef ANIMATE_IN_PARALLEL
animation->setStartValue(items.at(i)->pos());
animation->setEndValue(positions.at(i));
group->addAnimation(animation);
#else
animation->setKeyValueAt(0.0, items.at(i)->pos());
animation->setKeyValueAt(1.0, positions.at(i));
animation->start(QAbstractAnimation::DeleteWhenStopped);
#endif
}
#ifdef ANIMATE_IN_PARALLEL
group->start(QAbstractAnimation::DeleteWhenStopped);
#endif
}
void MyGraphics::setCurrentFile(const QString &fileName)
{
curFile = fileName;
// setWindowModified(false);
QString shownName = tr("Unnamed");
if (!curFile.isEmpty()) {
shownName = strippedName(curFile);
recentFiles.removeAll(curFile);
recentFiles.prepend(curFile);
updateRecentFileActions();
}
}
//更新recentfile列
void MyGraphics::updateRecentFileActions()
{
QMutableStringListIterator i(recentFiles);
while (i.hasNext()) {
if (!QFile::exists(i.next()))
i.remove();
}
for (int j = 0; j < MaxRecentFiles; ++j) {
if (j < recentFiles.count()) {
QString text = tr("&%1 %2")
.arg(j + 1)
.arg(strippedName(recentFiles[j]));
recentFileActions[j]->setText(text);
recentFileActions[j]->setData(recentFiles[j]);
recentFileActions[j]->setVisible(true);
} else {
recentFileActions[j]->setVisible(false);
}
}
separatorAction->setVisible(!recentFiles.isEmpty());
}
QString MyGraphics::strippedName(const QString &fullFileName)
{
return QFileInfo(fullFileName).fileName();
}
//打开最近打开的文件
void MyGraphics::openRecentFile()
{
if (!okToClearData())
return;
QAction *action = qobject_cast<QAction *>(sender());
if (action)
{
setWindowFilePath(action->data().toString());
loadFile();
}
}
//读取设置
void MyGraphics::readSettings()
{
QSettings settings("Fish.", "Glu Graphics");
recentFiles = settings.value("recentFiles").toStringList();
updateRecentFileActions();
}
//保存设置
void MyGraphics::writeSettings()
{
QSettings settings("Fish.", "Glu Graphics");
settings.setValue("recentFiles", recentFiles);
}
//更新窗口修改标志*
void MyGraphics::setDirty(bool on)
{
setWindowModified(on);
}
//保存
bool MyGraphics::fileSave()
{
const QString filename = windowFilePath();
if (filename.isEmpty() || filename == tr("Unnamed"))
return fileSaveAs();
QFile file(filename);
if (!file.open(QIODevice::WriteOnly))
return false;
QDataStream out(&file);
out.setVersion(QDataStream::Qt_4_5);
writeItems(out, scene->items());
file.close();
setDirty(false);
setCurrentFile(filename);
return true;
}
//另存为
bool MyGraphics::fileSaveAs()
{
QString filename = QFileDialog::getSaveFileName(this,
tr("%1 - Save As").arg(QApplication::applicationName()),
".", tr("Glu Graphics (*.gg)"));
if (filename.isEmpty())
return false;
if (!filename.toLower().endsWith(".gg"))
filename += ".gg";
setWindowFilePath(filename);
return fileSave();
}
//保存item
void MyGraphics::writeItems(QDataStream &out,
const QList<QGraphicsItem*> &itemList)
{
out << MagicNumber << VersionNumber;
int sceneItemsize = 0;
for(int i=0;i<itemList.size();i++)
{
QGraphicsItem *pParentItem= itemList.at(i)->parentItem();
if(pParentItem != 0)
continue;
sceneItemsize++ ;
}
out << sceneItemsize;
for(int i=0;i<itemList.size();i++)
{
// QGraphicsItem *pParentItem= itemList.at(i)->parentItem();
// if(pParentItem != 0)
// continue;
qint32 type = static_cast<qint32>(itemList.at(i)->type());
switch (type)
{
case MG_TYPE_IRECT:
{
out << iRect::Type;
iRect *piRect = dynamic_cast<iRect*>(itemList.at(i));
out << piRect;
out << piRect->zValue();
break;
}
case MG_TYPE_IELLIPSE:
{
out << iEllipse::Type;
iEllipse *piEllipse = dynamic_cast<iEllipse*>(itemList.at(i));
out << piEllipse;
out << piEllipse->zValue();
break;
}
case MG_TYPE_ITEXT:
{
out << iText::Type;
iText *piText = dynamic_cast<iText*>(itemList.at(i));
out << piText;
out << piText->zValue();
break;
}
default:
Q_ASSERT(false);
}
}
}
//读取文件
void MyGraphics::loadFile()
{
QFile file(windowFilePath());
file.open(QIODevice::ReadOnly);
QDataStream in;
in.setDevice(&file);
in.setVersion(QDataStream::Qt_4_5);
clear();
readItems(in);
setDirty(false);
setCurrentFile(windowFilePath());
}
//清空scene
void MyGraphics::clear()
{
undoStack->clear();
scene->clear();
z_value = 1.0;
maxValue = -10000.0;
viewRestore();
}
//读取文件中的item
void MyGraphics::readItems(QDataStream &in)
{
qint32 itemType;
QGraphicsItem *item = 0;
qint32 magicNumber;
qint16 versionNumber;
in >> magicNumber >> versionNumber;
int sceneItemsize = 0;
in >> sceneItemsize;
while (sceneItemsize > 0 && !in.atEnd())
{
sceneItemsize-- ;
in >> itemType;
switch (itemType)
{
case MG_TYPE_IRECT:
{
iRect *it = new iRect();
in >> it;
scene->addItem(it);
qreal zvalue;
in >> zvalue;
it->setZValue(zvalue);
item = it;
break;
}
case MG_TYPE_IELLIPSE:
{
iEllipse *it = new iEllipse();
in >> it;
scene->addItem(it);
qreal zvalue;
in >> zvalue;
it->setZValue(zvalue);
item = it;
break;
}
case MG_TYPE_ITEXT:
{
iText *it = new iText();
in >> it;
scene->addItem(it);
qreal zvalue;
in >> zvalue;
it->setZValue(zvalue);
item = it;
break;
}
}
}
}
//剪切板中的item
QList<QGraphicsItem*> MyGraphics::readItems(QDataStream &in, int offset)
{
QList<QGraphicsItem*> itList;
QSet<QGraphicsItem*> items;
qint32 itemType;
QGraphicsItem *item = 0;
qint32 magicNumber;
qint16 versionNumber;
in >> magicNumber >> versionNumber;
int sceneItemsize = 0;
in >> sceneItemsize;
int count = scene->items().size();
qDebug() << "count =" << count;
maxValue = -10000.0;
if (count > 0)
foreach (QGraphicsItem *item, scene->items())
{
maxzValue(item->zValue());
}
else
maxValue = 0.0;
qDebug() << "maxValue" << maxValue;
while (sceneItemsize > 0 && !in.atEnd())
{
sceneItemsize--;
in >> itemType;
switch (itemType)
{
case MG_TYPE_IRECT:
{
iRect *it = new iRect();
in >> it;
// scene->addItem(it);
qreal zvalue;
in >> zvalue;
it->setZValue(zvalue);
item = it;
break;
}
case MG_TYPE_IELLIPSE:
{
iEllipse *it = new iEllipse();
in >> it;
// scene->addItem(it);
qreal zvalue;
in >> zvalue;
it->setZValue(zvalue);
item = it;
break;
}
case MG_TYPE_ITEXT:
{
iText *it = new iText();
in >> it;
// scene->addItem(it);
qreal zvalue;
in >> zvalue;
it->setZValue(zvalue);
item = it;
break;
}
}
itList.append(item);
if (item) {
item->moveBy(offset, offset);
items << item;
item = 0;
}
// qDebug() << "itList" << itList.at(0);
z_value++;
}
// qDebug() << "^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^";
// qDebug() << "before" << itList;
// qDebug() << "^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^";
setItemszValue(itList);
// qDebug() << "after" << itList;
// qDebug() << "^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^";
return itList;
// qreal pastezValue = maxValue + 1;
// for (int m = 0; m < itList.size(); m++)
// {
// itList.at(m)->setZValue(pastezValue++);
// scene->addItem(itList.at(m));