#include?“commands.h“
#include?
MoveShapeCommand::MoveShapeCommand（QGraphicsScene?*graphicsScene?const?QPointF?&delta?QUndoCommand?*parent）
????:?QUndoCommand（parent）
{
????myItem?=?0;
????myItems?=?graphicsScene->selectedItems（）;
????myGraphicsScene?=?graphicsScene;
????myDelta?=?delta;
????bMoved?=?true;
}

MoveShapeCommand::MoveShapeCommand（QGraphicsItem?*?item?const?QPointF?&delta?QUndoCommand?*parent）
????:?QUndoCommand（parent）
{
????myGraphicsScene?=?0;
????myItem?=?item;
????myDelta?=?delta;
????bMoved?=?true;
}

//!?[2]
void?MoveShapeCommand::undo（）
{
????if?（?myItem?）
????????myItem->moveBy（-myDelta.x（）-myDelta.y（））;
????else?if（?myItems.count（）?>?0?）{
????????foreach?（QGraphicsItem?*item?myItems）?{
???????????item->moveBy（-myDelta.x（）-myDelta.y（））;
????????}
????}
????setText（Qobject::tr（“Undo?Move?%1%2“）
????????.arg（-myDelta.x（））.arg（-myDelta.y（）））;
????bMoved?=?false;
}
//!?[2]

//!?[3]
void?MoveShapeCommand::redo（）
{
????if?（?!bMoved?）{
????????if?（?myItem?）{
????????????myItem->moveBy（myDelta.x（）myDelta.y（））;
????????????myItem->scene（）->update（）;
????????}else?if（?myItems.count（）?>?0?）{
????????????foreach?（QGraphicsItem?*item?myItems）?{
???????????????item->moveBy（myDelta.x（）myDelta.y（））;
????????????}
????????????myGraphicsScene->update（）;
????????}
????}
????setText（Qobject::tr（“Redo?Move?%1%2“）
????????.arg（myDelta.x（））.arg（myDelta.y（）））;
}
//!?[3]
//!?[4]
RemoveShapeCommand::RemoveShapeCommand（QGraphicsScene?*scene?QUndoCommand?*parent）
????:?QUndoCommand（parent）
{
????myGraphicsScene?=?scene;
????items?=?myGraphicsScene->selectedItems（）;
}

RemoveShapeCommand::~RemoveShapeCommand（）
{

}
//!?[4]

//!?[5]
void?RemoveShapeCommand::undo（）
{
????foreach?（QGraphicsItem?*item?items）?{
????????QGraphicsItemGroup?*g?=?dynamic_cast（item->parentItem（））;
????????if?（?!g?）
????????????myGraphicsScene->addItem（item）;
????}
????myGraphicsScene->update（）;
????setText（Qobject::tr（“Undo?Delete?%1“）.arg（items.count（）））;
}
//!?[5]

//!?[6]
void?RemoveShapeCommand::redo（）
{
????foreach?（QGraphicsItem?*item?items）?{
????????QGraphicsItemGroup?*g?=?dynamic_cast（item->parentItem（））;
????????if?（?!g?）
????????????myGraphicsScene->removeItem（item）;
????}
????????setText（Qobject::tr（“Redo?Delete?%1“）.arg（items.count（）））;
}
//!?[6]

//!?[7]
AddShapeCommand::AddShapeCommand（QGraphicsItem?*item
???????????????????????QGraphicsScene?*scene?QUndoCommand?*parent）
????:?QUndoCommand（parent）
{
????static?int?itemCount?=?0;

????myGraphicsScene?=?scene;
????myDiagramItem?=?item;
????initialPosition?=?item->pos（）;
????++itemCount;
}
//!?[7]

AddShapeCommand::~AddShapeCommand（）
{
????if?（!myDiagramItem->scene（））
????????delete?myDiagramItem;
}

//!?[8]
void?AddShapeCommand::undo（）
{
????myGraphicsScene->removeItem（myDiagramItem）;
????myGraphicsScene->update（）;
????setText（Qobject::tr（“Undo?Add?%1“）
????????.arg（createCommandString（myDiagramItem?initialPosition）））;

}
//!?[8]

//!?[9]
void?AddSha

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????.......???????242??2017-01-28?23:05??qdraw-master\.gitignore

????.......???????813??2017-01-28?23:05??qdraw-master\app\app.pro

????.......??????1427??2017-01-28?23:05??qdraw-master\app\app.qrc

????.......?????10349??2017-01-28?23:05??qdraw-master\app\commands.cpp

????.......??????3645??2017-01-28?23:05??qdraw-master\app\commands.h

????.......?????17161??2017-01-28?23:05??qdraw-master\app\customproperty.cpp

????.......??????3143??2017-01-28?23:05??qdraw-master\app\customproperty.h

????.......????????50??2017-01-28?23:05??qdraw-master\app\document.cpp

????.......???????108??2017-01-28?23:05??qdraw-master\app\document.h

????.......?????41867??2017-01-28?23:05??qdraw-master\app\drawobj.cpp

????.......?????12333??2017-01-28?23:05??qdraw-master\app\drawobj.h

????.......?????11388??2017-01-28?23:05??qdraw-master\app\drawscene.cpp

????.......??????2313??2017-01-28?23:05??qdraw-master\app\drawscene.h

????.......?????16877??2017-01-28?23:05??qdraw-master\app\drawtool.cpp

????.......??????2995??2017-01-28?23:05??qdraw-master\app\drawtool.h

????.......??????9292??2017-01-28?23:05??qdraw-master\app\drawview.cpp

????.......??????1338??2017-01-28?23:05??qdraw-master\app\drawview.h

????.......??????2951??2017-01-28?23:05??qdraw-master\app\icons\align_all.png

????.......??????1009??2017-01-28?23:05??qdraw-master\app\icons\align_bottom.png

????.......??????1229??2017-01-28?23:05??qdraw-master\app\icons\align_hcenter.png

????.......??????2256??2017-01-28?23:05??qdraw-master\app\icons\align_height.png

????.......??????1505??2017-01-28?23:05??qdraw-master\app\icons\align_height.svg

????.......???????355??2017-01-28?23:05??qdraw-master\app\icons\align_horzeven.png

????.......??????1192??2017-01-28?23:05??qdraw-master\app\icons\align_left.png

????.......??????1141??2017-01-28?23:05??qdraw-master\app\icons\align_right.png

????.......??????1199??2017-01-28?23:05??qdraw-master\app\icons\align_top.png

????.......??????1223??2017-01-28?23:05??qdraw-master\app\icons\align_vcenter.png

????.......???????344??2017-01-28?23:05??qdraw-master\app\icons\align_verteven.png

????.......??????2001??2017-01-28?23:05??qdraw-master\app\icons\align_width.png

????.......??????1777??2017-01-28?23:05??qdraw-master\app\icons\align_width.svg

............此處省略325個文件信息