#include?“gsmainscene.h“
#include?
#include?
#include?
#include?
#include?“gsshapebaseitem.h“

GsMainScene::GsMainScene（const?QSizeF?&size?Qobject?*parent）
????:?QGraphicsScene（QRectF（0?0?size.width（）?size.height（））?parent）
{
????m_pRootItem?=?new?GsRootItem（size）;
????addItem（m_pRootItem）;
????QPixmapCache::setCacheLimit（204800）;
}

GsMainScene::~GsMainScene（）
{
}

void?GsMainScene::mousePressEvent（QGraphicsSceneMouseEvent?*e）
{
????scenePress（1e->scenePos（））;
????QGraphicsScene::mousePressEvent（e）;
}

void?GsMainScene::mouseMoveEvent（QGraphicsSceneMouseEvent?*e）
{
????sceneMove（1e->lastScenePos（）e->scenePos（））;
????QGraphicsScene::mouseMoveEvent（e）;
}

void?GsMainScene::mouseReleaseEvent（QGraphicsSceneMouseEvent?*e）
{
????sceneRelease（1e->scenePos（））;
????QGraphicsScene::mouseReleaseEvent（e）;
}

void?GsMainScene::keyPressEvent（QKeyEvent?*e）
{
????switch?（e->key（））?{
????case?Qt::Key_1:
????????m_pRootItem->setCurType（Shape_Line）;
????????break;
????case?Qt::Key_2:
????????m_pRootItem->setCurType（Shape_Rectange）;
????????break;
????case?Qt::Key_3:
????????m_pRootItem->setCurType（Shape_Circle）;
????????break;
????case?Qt::Key_4:
????????m_pRootItem->setCurType（Shape_Oval）;
????????break;
????case?Qt::Key_Up:
????????m_pRootItem->setScale（m_pRootItem->scale（）?+?0.1）;
????????break;
????case?Qt::Key_Down:
????????m_pRootItem->setScale（m_pRootItem->scale（）?-?0.1）;
????????break;
????case?Qt::Key_Delete:
????????m_pRootItem->clear（）;
????????break;
????default:
????????break;
????}
}

bool?GsMainScene::scenePress（int?id?const?QPointF?&pos）
{
????if（!isHitItem（pos））{
????????m_pRootItem->drawPress（idpos）;
????}
????return?true;
}

bool?GsMainScene::sceneMove（int?id?const?QPointF?&prepos?const?QPointF?&pos）
{
????m_pRootItem->drawMove（idprepospos）;
????return?true;
}

bool?GsMainScene::sceneRelease（int?id?const?QPointF?&pos）
{
????m_pRootItem->drawRelease（idpos）;
????return?true;
}

bool?GsMainScene::isHitItem（QPointF?p）
{
????QList?items?=?this->items（p）;
????foreach?（QGraphicsItem?*?itemitems）?{
????????GsShapebaseItem?*?i?=?dynamic_castseItem*>（item）;
????????if（!i）{
????????????continue;
????????}
????????if（i->type（）?==?Type_ShapeItem）{
????????????if（i->hasSelected（p））{
????????????????return?true;
????????????}
????????????return?true;
????????}
????}
????return?false;
}

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-07-01?13:46??GraphicShapes\
?????文件????????1606??2019-06-06?11:20??GraphicShapes\GraphicShapes.pro
?????文件?????????456??2019-05-27?20:04??GraphicShapes\gscommondef.h
?????文件????????2523??2019-07-01?11:56??GraphicShapes\gsmainscene.cpp
?????文件?????????837??2019-07-01?11:53??GraphicShapes\gsmainscene.h
?????文件????????2397??2019-06-18?16:23??GraphicShapes\gsrootitem.cpp
?????文件????????1258??2019-06-06?11:07??GraphicShapes\gsrootitem.h
?????文件????????1574??2019-05-27?20:32??GraphicShapes\gsshapeitem.cpp
?????文件?????????664??2019-06-06?10:46??GraphicShapes\gsshapeitem.h
?????文件????????1944??2019-06-17?18:23??GraphicShapes\gstempcanvaslayer.cpp
?????文件?????????797??2019-05-27?20:01??GraphicShapes\gstempcanvaslayer.h
?????文件?????????492??2019-05-27?17:09??GraphicShapes\main.cpp
?????目錄???????????0??2019-07-01?11:57??GraphicShapes\shape\
?????文件?????????597??2019-07-01?11:50??GraphicShapes\shape\gsshapebaseitem.cpp
?????文件?????????562??2019-07-01?11:57??GraphicShapes\shape\gsshapebaseitem.cpp.autosave
?????文件?????????891??2019-07-01?11:54??GraphicShapes\shape\gsshapebaseitem.h
?????文件????????1006??2019-07-01?11:50??GraphicShapes\shape\gsshapecircleitem.cpp
?????文件?????????486??2019-06-06?11:45??GraphicShapes\shape\gsshapecircleitem.h
?????文件?????????911??2019-06-18?10:11??GraphicShapes\shape\gsshapefactory.cpp
?????文件?????????370??2019-06-06?11:06??GraphicShapes\shape\gsshapefactory.h
?????文件????????1293??2019-07-01?11:52??GraphicShapes\shape\gsshapelineitem.cpp
?????文件?????????472??2019-07-01?11:52??GraphicShapes\shape\gsshapelineitem.h
?????文件?????????849??2019-06-06?16:58??GraphicShapes\shape\gsshapeovalitem.cpp
?????文件?????????474??2019-06-06?11:45??GraphicShapes\shape\gsshapeovalitem.h
?????文件?????????823??2019-06-17?18:29??GraphicShapes\shape\gsshaperectangeitem.cpp
?????文件?????????496??2019-06-06?11:45??GraphicShapes\shape\gsshaperectangeitem.h