SuperMap C++组件在Qt下实现地图自定义绘制

#include "ugmapcontrol.h" #include "MapEditor/UGMapEditorWnd.h"//打开地图用到 #include "Graphics/UGGraphicsManager.h"//绘制图像用到 #include "Engine/UGDataSourceManager.h" #include "Engine/UGDataSources.h" #include "Engine/UGDataSource.h" #include "Engine/UGDataset.h" #include "Engine/UGDatasetVector.h" #include "justdraw.h" #include <QPainter> #include <QDebug> void UGSTDCALL DrawnCallBack(UGlong pWnd,UGGraphics* pGraphics) { UGMapControl* pw = (UGMapControl*)pWnd; qDebug()<<pw->isVisible(); pw->initJD(pGraphics); } UGMapControl::UGMapControl(QWidget *parent) { m_width = parent->width(); m_height = parent->height(); m_pMapImage = NULL; init(); //openMap(); } UGMapControl::~UGMapControl() { } void UGMapControl::paintEvent(QPaintEvent *event) { bool isCreatGraphics = false; UGGraphics* pGraphics = NULL; if (m_invalidate) { //SetWaitCursor(); CreateUGGrpaphics(pGraphics); UGRect rcInvalid(0, 0, m_width, m_height); m_pMapEditorWnd->OnDraw(pGraphics, rcInvalid, rcInvalid, false, false); isCreatGraphics = true; //ReviseCursor(); PaintToQPainter(pGraphics); if(isCreatGraphics) { ReleaseUGGraphics(pGraphics); } m_invalidate = FALSE; } } void UGMapControl::resizeEvent(QResizeEvent *event) { QWidget::resizeEvent(event); m_width = this->width(); m_height = this->height(); m_pMapEditorWnd->OnSize(NULL,UGRect(0, 0, m_width, m_height)); delete m_pMapImage; m_pMapImage = UGGraphicsManager::NewImage(); m_pMapImage->CreateCompatibleImage(NULL, m_width, m_height); this->Invalidate(); } void UGMapControl::openMap() { UGString workspacePath = _U("..\\Data\\China400.smwu"); UGbool bl = m_pWorkspace->Open(workspacePath); // 获取到工作空间中存储的第张地图的名字 UGString mapName = _U("Point");//m_pWorkspace->m_MapStorages.GetNameAt(0); // 打开指定的名称的地图 UGMap *pMap = (UGMap*)&(m_pMapEditorWnd->m_mapWnd.m_Map); pMap->Open(mapName); // 全副显示地图 m_pMapEditorWnd->ViewEntire(); m_pMapEditorWnd->Refresh(); Invalidate(); } void UGMapControl::init() { UGGraphicsManager::SetCurGraphicsType(UGGraphics::GT_Windows); //初始化地图控件 m_pMapEditorWnd = new UGMapEditorWnd(); m_pMapEditorWnd->Initialize(); m_pMapEditorWnd->SetUserAction(UGDrawParamaters::uaPointModeSelect); //初始化工作空间 m_pWorkspace = new UGWorkspace; //将工作空间绑定到地图控件的地图渲染窗口中的地图上，使地图控件可以对该工作空间上的地图进行控制 UGMap *pMap = (UGMap*)&(m_pMapEditorWnd->m_mapWnd.m_Map); pMap->SetWorkspace(m_pWorkspace); pMap->SetAfterMapDrawFunc(DrawnCallBack,UGlong(this)); pMap->SetLineSmoothingMode(false);// } void UGMapControl::CreateUGGrpaphics(UGGraphics *&pGraphics) { pGraphics = UGC::UGGraphicsManager::NewGraphics(); pGraphics->CreateCompatibleGraphics(NULL); m_pOldImage = pGraphics->SelectImage(m_pMapImage); } void UGMapControl::ReleaseUGGraphics(UGGraphics *&pGraphics) { pGraphics->SelectImage(m_pOldImage); delete pGraphics; pGraphics = NULL; } void UGMapControl::PaintToQPainter(UGGraphics* &pGraphics) { m_pQimage = new QImage((UGC::UGbyte*)m_pMapImage->GetColors(), m_width, m_height, QImage::Format_ARGB32); if(m_invalidate) { JustDraw *m_jd = new JustDraw(this,pGraphics); m_jd->drawPointsOnImage(m_pQimage); } QPainter paint; paint.begin(this); QColor backGound(255, 255, 255); paint.fillRect(0, 0, m_width, m_height, backGound); paint.drawPixmap( QRect(0, 0, m_width, m_height),QPixmap::fromImage(m_pQimage->scaled(size()))); //paint.drawImage(QRectF(0, 0, m_width, m_height), *m_pQimage); paint.end(); if (m_pQimage != NULL) { delete m_pQimage; m_pQimage = NULL; } } void UGMapControl::Invalidate() { m_invalidate = TRUE; this->update(); } void UGMapControl::initJD(UGGraphics *pGraphics) { //m_jd = new JustDraw(this,pGraphics); }