Anatoly Mihalchenko
13 years ago
parent
00f1f768d3
commit
d1ae78c2d2
File diff suppressed because it is too large
Load Diff
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After Width: | Height: | Size: 2.7 KiB |
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After Width: | Height: | Size: 2.8 KiB |
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After Width: | Height: | Size: 318 B |
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After Width: | Height: | Size: 318 B |
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After Width: | Height: | Size: 277 B |
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After Width: | Height: | Size: 277 B |
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After Width: | Height: | Size: 217 B |
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After Width: | Height: | Size: 217 B |
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#include "UBMagnifer.h" |
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#include <QPainter> |
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#include <QPixmap> |
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#include <QDebug> |
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#include <QWidget> |
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#include <QGraphicsView> |
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#include <QTimerEvent> |
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#include <QBitmap> |
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#include <QPen> |
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UBMagnifer::UBMagnifer(QWidget *parent)
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: QWidget(parent) |
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, gView(0) |
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, mView(0) |
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, sizePercentFromScene(20) |
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, inTimer(false) |
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, borderPen(Qt::darkGray) |
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{ |
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borderPen.setWidth(2); |
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} |
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UBMagnifer::~UBMagnifer() |
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{ |
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if (timerUpdate != 0) |
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{ |
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killTimer(timerUpdate); |
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timerUpdate = 0; |
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} |
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} |
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void UBMagnifer::setSize(int percentFromScene)
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{ |
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if(gView == NULL) return; |
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// calculate object size
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sizePercentFromScene = percentFromScene; |
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QSize sceneSize = gView->size(); |
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int size = sizePercentFromScene * sceneSize.width() / 100; |
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setGeometry(0, 0, size, size); |
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// prepare transparent bit mask
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QImage mask_img(width(), height(), QImage::Format_Mono); |
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mask_img.fill(0xff); |
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QPainter mask_ptr(&mask_img); |
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mask_ptr.setBrush( QBrush( QColor(0, 0, 0) ) ); |
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mask_ptr.drawEllipse(QPoint(size/2, size/2), size/2, size/2); |
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bmpMask = QBitmap::fromImage(mask_img); |
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// prepare general image
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pMap = QPixmap(width(), height()); |
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pMap.fill(Qt::transparent); |
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pMap.setMask(bmpMask); |
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} |
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void UBMagnifer::setZoom(int z)
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{ |
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zoom = z; |
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zWidth = size().width() / zoom; |
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zWidthHalf = zWidth / 2; |
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zHeight = size().height() / zoom; |
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zHeightHalf = zHeight / 2; |
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} |
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void UBMagnifer::paintEvent(QPaintEvent *) |
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{ |
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QPainter p(this); |
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p.drawPixmap(0, 0, pMap); |
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// in future replace to image border
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QPen pen(Qt::darkGray); |
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pen.setWidth(2); |
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p.setPen(borderPen); |
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p.drawEllipse(QPoint( size().width() / 2, size().height() / 2), size().width() / 2, size().height() / 2); |
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} |
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void UBMagnifer::timerEvent(QTimerEvent *e) |
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{ |
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if(inTimer) return; |
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if (e->timerId() == timerUpdate) |
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{ |
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inTimer = true; |
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if(!(updPoint.isNull())) grabPoint(updPoint); |
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if(!(updPointF.isNull()))grabPoint(updPointF); |
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inTimer = false; |
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} |
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} |
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void UBMagnifer::grabPoint(const QPoint &point) |
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{ |
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QPointF itemPos = gView->mapFromGlobal(point); |
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int x = itemPos.x() - zWidthHalf; |
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int y = itemPos.y() - zHeightHalf; |
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QPixmap newPixMap(QSize(zWidth,zHeight)); |
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((QWidget*)gView)->render(&newPixMap, QPoint(0, 0), QRegion(x, y, zWidth, zHeight)); |
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pMap.fill(Qt::transparent); |
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pMap = newPixMap.scaled(QSize(width(), height())); |
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pMap.setMask(bmpMask); |
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update(); |
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} |
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void UBMagnifer::grabPoint(const QPointF &point) |
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{ |
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QPoint itemPos = gView->mapFromScene(point); |
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int x = itemPos.x() - zWidthHalf; |
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int y = itemPos.y() - zHeightHalf; |
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QPixmap newPixMap(QSize(zWidth,zHeight)); |
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((QWidget*)gView)->render(&newPixMap, QPoint(0, 0), QRegion(x, y, zWidth, zHeight)); |
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pMap.fill(Qt::transparent); |
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pMap = newPixMap.scaled(QSize(width(), height())); |
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pMap.setMask(bmpMask); |
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update(); |
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} |
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// from global
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void UBMagnifer::grabNMove(const QPoint &point, bool needGrab = true) |
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{ |
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updPoint = point; |
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if(needGrab) |
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grabPoint(point); |
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QPoint itemPos = mView->mapFromGlobal(point); |
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move(itemPos.x() - width()/2, itemPos.y() - height()/2); |
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// move(itemPos.x(), itemPos.y());
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} |
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// from scene
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void UBMagnifer::grabNMove(const QPointF &point, bool needGrab = true) |
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{ |
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updPointF = point; |
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if(needGrab) |
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grabPoint(point); |
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QPoint itemPos = mView->mapFromScene(point); |
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move(itemPos.x() - width()/2, itemPos.y() - height()/2); |
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// move(itemPos.x(), itemPos.y());
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} |
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void UBMagnifer::setGrabView(QGraphicsView *view) |
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{ |
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if (timerUpdate != 0) |
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killTimer(timerUpdate); |
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gView = view; |
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timerUpdate = startTimer(200); |
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} |
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@ -0,0 +1,60 @@ |
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#ifndef UBMAGNIFER_H |
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#define UBMAGNIFER_H |
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#include <QWidget> |
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#include <QBitmap> |
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#include <QPen> |
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class QPixmap; |
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class QBitmap; |
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class QPen; |
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class QGraphicsView; |
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class UBMagnifer : public QWidget |
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{ |
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Q_OBJECT |
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public: |
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UBMagnifer(QWidget *parent = 0); |
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~UBMagnifer(); |
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void setSize(int percentFromScene); |
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void setZoom(int z); |
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void setGrabView(QGraphicsView *view); |
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void setMoveView(QGraphicsView *view) {mView = view;} |
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void grabPoint(const QPoint &point); |
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void grabPoint(const QPointF &point); |
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void grabNMove(const QPoint &point, bool needGrab); |
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void grabNMove(const QPointF &point, bool needGrab); |
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protected: |
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void paintEvent(QPaintEvent *); |
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void timerEvent(QTimerEvent *); |
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int sizePercentFromScene; |
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private: |
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int zoom; |
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int zWidth; |
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int zHeight; |
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int zWidthHalf; |
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int zHeightHalf; |
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bool inTimer; |
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int timerUpdate; |
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QPoint updPoint; |
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QPointF updPointF; |
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QPixmap pMap; |
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QBitmap bmpMask; |
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QPen borderPen; |
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QGraphicsView *gView; |
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QGraphicsView *mView; |
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}; |
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#endif // UBMAGNIFER_H
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