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402 lines
13 KiB
402 lines
13 KiB
/*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <QtGui>
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#include "UBMagnifer.h"
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#include "core/UBApplication.h"
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#include "board/UBBoardController.h"
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#include "domain/UBGraphicsScene.h"
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#include "board/UBBoardView.h"
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#include "core/memcheck.h"
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UBMagnifier::UBMagnifier(QWidget *parent, bool isInteractive)
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: QWidget(parent, parent ? Qt::Widget : Qt::Tool | (Qt::FramelessWindowHint | Qt::WindowStaysOnTopHint | Qt::X11BypassWindowManagerHint))
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, mShouldMoveWidget(false)
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, mShouldResizeWidget(false)
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, borderPen(Qt::darkGray)
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, gView(0)
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, mView(0)
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{
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isCusrsorAlreadyStored = false;
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setMouseTracking(true);
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//--------------------------------------------------//
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QPixmap pix(":/images/cursors/resize.png");
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QTransform tr;
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tr.rotate(45);
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mResizeCursor = QCursor(pix.transformed(tr, Qt::SmoothTransformation), pix.width() / 2, pix.height() / 2);
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//--------------------------------------------------//
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params.sizePercentFromScene = 20;
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m_isInteractive = isInteractive;
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sClosePixmap = new QPixmap(":/images/close.svg");
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sIncreasePixmap = new QPixmap(":/images/increase.svg");
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sDecreasePixmap = new QPixmap(":/images/decrease.svg");
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mResizeItem = new QPixmap(":/images/resize.svg");
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if (parent)
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{
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setAttribute(Qt::WA_NoMousePropagation);
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}
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else
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{
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// standalone window
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// !!!! Should be included into Windows after QT recompilation
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#ifndef Q_WS_WIN
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// setAttribute(Qt::WA_TranslucentBackground);
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setAttribute(Qt::WA_MacAlwaysShowToolWindow);
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#endif
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#ifdef Q_WS_MAC
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setAttribute(Qt::WA_MacAlwaysShowToolWindow);
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setAttribute(Qt::WA_MacNonActivatingToolWindow);
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setAttribute(Qt::WA_MacNoShadow);
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#endif
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}
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connect(&mRefreshTimer, SIGNAL(timeout()), this, SLOT(slot_refresh()));
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}
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UBMagnifier::~UBMagnifier()
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{
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if(sClosePixmap)
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{
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delete sClosePixmap;
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sClosePixmap = NULL;
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}
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if(sIncreasePixmap)
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{
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delete sIncreasePixmap;
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sIncreasePixmap = NULL;
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}
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if(sDecreasePixmap)
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{
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delete sDecreasePixmap;
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sDecreasePixmap = NULL;
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}
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}
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void UBMagnifier::setSize(qreal percentFromScene)
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{
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if(gView == NULL || mView == NULL) return;
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// calculate object size
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params.sizePercentFromScene = percentFromScene;
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QSize sceneSize = mView->size();
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qreal size = params.sizePercentFromScene * sceneSize.width() / 100;
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QRect currGeom = geometry();
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if(currGeom.width() == currGeom.height())
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{
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QPoint newPos = mView->mapFromGlobal(updPointMove);
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setGeometry(newPos.x() - size / 2, newPos.y() - size / 2, size, size);
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}
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else
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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(QPointF(size/2, size/2), size / 2 - sClosePixmap->width(), size / 2 - sClosePixmap->width());
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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 UBMagnifier::setZoom(qreal zoom)
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{
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params.zoom = zoom;
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}
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void UBMagnifier::paintEvent(QPaintEvent * event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing);
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painter.setPen(Qt::NoPen);
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if (m_isInteractive)
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{
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painter.setBrush(QColor(127, 127, 127, 127));
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painter.drawRoundedRect(QRectF(size().width() / 2, size().height() / 2, ( size().width() - sClosePixmap->width() ) / 2, ( size().height() - sClosePixmap->width() ) / 2), 15, 15);
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painter.setBrush(QColor(190, 190, 190, 255));
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painter.drawEllipse(QPoint( size().width() / 2, size().height() / 2), ( size().width() - sClosePixmap->width() ) / 2, ( size().height() - sClosePixmap->height() ) / 2);
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painter.drawPixmap(size().width() - sClosePixmap->width(), size().height() / 2 + sClosePixmap->height() * 1, *sClosePixmap);
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painter.drawPixmap(size().width() - sIncreasePixmap->width(), size().height() / 2 + sIncreasePixmap->height() * 2.5, *sIncreasePixmap);
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painter.drawPixmap(size().width() - sDecreasePixmap->width(), size().height() / 2 + sDecreasePixmap->height() * 3.6, *sDecreasePixmap);
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painter.drawPixmap(size().width() - mResizeItem->width() - 20, size().height() - mResizeItem->height() - 20, *mResizeItem);
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}
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else
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{
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painter.setBrush(QColor(127, 127, 127, 127));
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painter.drawEllipse(QPoint( size().width() / 2, size().height() / 2), ( size().width() - sClosePixmap->width() ) / 2, ( size().height() - sClosePixmap->height() ) / 2);
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}
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painter.drawPixmap(0, 0, pMap);
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}
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void UBMagnifier::mousePressEvent ( QMouseEvent * event )
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{
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if(m_isInteractive)
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{
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QWidget::mousePressEvent(event);
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if (event->pos().x() >= size().width() - mResizeItem->width() - 20 &&
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event->pos().x() < size().width() - 20 &&
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event->pos().y() >= size().height() - mResizeItem->height() - 20 &&
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event->pos().y() < size().height() - - 20)
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{
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mShouldResizeWidget = true;
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}
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else
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{
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mShouldMoveWidget = !event->isAccepted() && (event->buttons() & Qt::LeftButton);
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}
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mMousePressPos = event->pos();
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mMousePressDelta = (qreal)updPointGrab.x() + (qreal)size().width() / 2 - (qreal)event->globalPos().x();
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event->accept();
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update();
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}
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else
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event->ignore();
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}
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void UBMagnifier::mouseMoveEvent ( QMouseEvent * event )
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{
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if(m_isInteractive)
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{
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if(mShouldMoveWidget && (event->buttons() & Qt::LeftButton))
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{
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move(pos() - mMousePressPos + event->pos());
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event->accept();
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QWidget::mouseMoveEvent(event);
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emit magnifierMoved_Signal(QPoint(this->pos().x() + size().width() / 2, this->pos().y() + size().height() / 2 ));
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return;
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}
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if(mShouldResizeWidget && (event->buttons() & Qt::LeftButton))
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{
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QPoint currGlobalPos = event->globalPos();
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qreal cvW = mView->width();
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qreal newXSize = ( currGlobalPos.x() + mMousePressDelta - updPointGrab.x() ) * 2;
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qreal newPercentSize = newXSize * 100 / cvW;
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emit magnifierResized_Signal(newPercentSize);
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event->ignore();
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return;
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}
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if (event->pos().x() >= size().width() - mResizeItem->width() - 20 &&
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event->pos().x() < size().width() - 20 &&
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event->pos().y() >= size().height() - mResizeItem->height() - 20 &&
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event->pos().y() < size().height() - - 20 &&
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isCusrsorAlreadyStored == false
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)
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{
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mOldCursor = cursor();
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isCusrsorAlreadyStored = true;
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setCursor(mResizeCursor);
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}
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}
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else
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event->ignore();
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}
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void UBMagnifier::mouseReleaseEvent(QMouseEvent * event)
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{
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if(m_isInteractive)
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{
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mShouldMoveWidget = false;
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mShouldResizeWidget = false;
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if (event->pos().x() >= size().width() - sClosePixmap->width() &&
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event->pos().x() < size().width()&&
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event->pos().y() >= size().height() / 2 + sClosePixmap->height() * 1 &&
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event->pos().y() < size().height() / 2 + sClosePixmap->height() * 2)
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{
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event->accept();
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emit magnifierClose_Signal();
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}
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else
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if (event->pos().x() >= size().width() - sIncreasePixmap->width() &&
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event->pos().x() < size().width()&&
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event->pos().y() >= size().height() / 2 + sIncreasePixmap->height() * 2.5 &&
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event->pos().y() < size().height() / 2 + sIncreasePixmap->height() * 3.5)
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{
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event->accept();
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emit magnifierZoomIn_Signal();
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}
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else
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if (event->pos().x() >= size().width() - sDecreasePixmap->width() &&
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event->pos().x() < size().width()&&
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event->pos().y() >= size().height() / 2 + sDecreasePixmap->height() * 3.6 &&
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event->pos().y() < size().height() / 2 + sDecreasePixmap->height() * 4.6)
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{
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event->accept();
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emit magnifierZoomOut_Signal();
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}
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else
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QWidget::mouseReleaseEvent(event); // don't propgate to parent, the widget is deleted in UBApplication::boardController->removeTool
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}
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else
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event->ignore();
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}
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void UBMagnifier::slot_refresh()
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{
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if(!(updPointGrab.isNull()))
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grabPoint(updPointGrab);
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if(isCusrsorAlreadyStored)
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{
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QPoint globalCursorPos = QCursor::pos();
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QPoint cursorPos = mapFromGlobal(globalCursorPos);
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if (cursorPos.x() < size().width() - mResizeItem->width() - 20 ||
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cursorPos.x() > size().width() - 20 ||
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cursorPos.y() < size().height() - mResizeItem->height() - 20 ||
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cursorPos.y() > size().height() - - 20
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)
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{
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isCusrsorAlreadyStored = false;
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setCursor(mOldCursor);
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}
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}
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}
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void UBMagnifier::grabPoint()
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{
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QMatrix transM = UBApplication::boardController->controlView()->matrix();
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QPointF itemPos = gView->mapFromGlobal(updPointGrab);
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qreal zWidth = width() / (params.zoom * transM.m11());
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qreal zWidthHalf = zWidth / 2;
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qreal zHeight = height() / (params.zoom * transM.m22());
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qreal zHeightHalf = zHeight / 2;
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QPointF pfScLtF(UBApplication::boardController->controlView()->mapToScene(QPoint(itemPos.x(), itemPos.y())));
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QRect magnifierRect = rect();
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float x = pfScLtF.x() - zWidthHalf;
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float y = pfScLtF.y() - zHeightHalf;
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QPointF leftTop(x,y);
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QPointF rightBottom(x + zWidth, y + zHeight);
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QRectF srcRect(leftTop, rightBottom);
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QPixmap newPixMap(QSize(width(), height()));
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QPainter painter(&newPixMap);
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UBApplication::boardController->activeScene()->render(&painter, QRectF(0,0,width(),height()), srcRect);
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painter.end();
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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 UBMagnifier::grabPoint(const QPoint &pGrab)
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{
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QMatrix transM = UBApplication::boardController->controlView()->matrix();
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updPointGrab = pGrab;
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QPointF itemPos = gView->mapFromGlobal(pGrab);
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qreal zWidth = width() / (params.zoom * transM.m11());
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qreal zWidthHalf = zWidth / 2;
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qreal zHeight = height() / (params.zoom * transM.m22());
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qreal zHeightHalf = zHeight / 2;
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QPointF pfScLtF(UBApplication::boardController->controlView()->mapToScene(QPoint(itemPos.x(), itemPos.y())));
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QRect magnifierRect = rect();
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float x = pfScLtF.x() - zWidthHalf;
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float y = pfScLtF.y() - zHeightHalf;
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QPointF leftTop(x,y);
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QPointF rightBottom(x + zWidth, y + zHeight);
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QRectF srcRect(leftTop, rightBottom);
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QPixmap newPixMap(QSize(width(), height()));
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QPainter painter(&newPixMap);
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UBApplication::boardController->activeScene()->render(&painter, QRectF(0,0,width(),height()), srcRect);
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painter.end();
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// pMap.fill(Qt::transparent);
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pMap = newPixMap;
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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 UBMagnifier::grabNMove(const QPoint &pGrab, const QPoint &pMove, bool needGrab, bool needMove)
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{
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updPointGrab = pGrab;
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updPointMove = pMove;
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if(needGrab)
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grabPoint(pGrab);
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if(needMove)
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{
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QPoint movePos = mView->mapFromGlobal(pMove);
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move(movePos.x() - width()/2, movePos.y() - height()/2);
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// move(itemPos.x(), itemPos.y());
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}
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}
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void UBMagnifier::setGrabView(QWidget *view)
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{
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gView = view;
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mRefreshTimer.setInterval(40);
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mRefreshTimer.start();
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}
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