# Copyright 2016 Hardcoded Software (http://www.hardcoded.net) # # This software is licensed under the "GPLv3" License as described in the "LICENSE" file, # which should be included with this package. The terms are also available at # http://www.gnu.org/licenses/gpl-3.0.html from PyQt5.QtCore import Qt, QSize, QRectF, QPointF, pyqtSlot from PyQt5.QtGui import QPixmap, QIcon, QKeySequence, QPainter, QPalette from PyQt5.QtWidgets import ( QVBoxLayout, QAbstractItemView, QHBoxLayout, QLabel, QSizePolicy, QToolBar, QToolButton, QGridLayout, QStyle, QAction, QWidget, QScrollArea, QApplication, QAbstractScrollArea ) from hscommon.trans import trget from hscommon import desktop from ..details_dialog import DetailsDialog as DetailsDialogBase from ..details_table import DetailsTable from qtlib.util import createActions tr = trget("ui") class ImageViewer(QWidget): """ Displays image and allow manipulations """ def __init__(self, parent): super().__init__(parent) self.parent = parent self.app = QApplication self.pixmap = QPixmap() self.m_rect = QRectF() self.reference = QPointF() self.delta = QPointF() self.scalefactor = 1.0 self.area = QScrollArea(parent) self.area.setBackgroundRole(QPalette.Dark) self.area.setWidgetResizable(True) self.area.setSizeAdjustPolicy(QAbstractScrollArea.AdjustToContents) # self.area.viewport().setAttribute(Qt.WA_StaticContents) self.label = QLabel() sizePolicy = QSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored) sizePolicy.setHorizontalStretch(0) sizePolicy.setVerticalStretch(0) sizePolicy.setHeightForWidth(self.label.sizePolicy().hasHeightForWidth()) self.label.setBackgroundRole(QPalette.Base) self.label.setSizePolicy(sizePolicy) self.label.setAlignment(Qt.AlignCenter) self.label.setScaledContents(True) self.area.setWidget(self.label) self.area.setVisible(False) def paintEvent(self, event): painter = QPainter(self) painter.translate(self.rect().center()) painter.scale(self.scalefactor, self.scalefactor) painter.translate(self.delta) painter.drawPixmap(self.m_rect.topLeft(), self.pixmap) def mousePressEvent(self, event): if self.parent.bestFit: event.ignore() # probably not needed return self.reference = event.pos() self.app.setOverrideCursor(Qt.ClosedHandCursor) self.setMouseTracking(True) def mouseMoveEvent(self, event): if self.parent.bestFit: event.ignore() # probably not needed return self.delta += (event.pos() - self.reference) * 1.0/self.scalefactor self.reference = event.pos() self.update() def mouseReleaseEvent(self, event): if self.parent.bestFit: event.ignore() # probably not needed return self.app.restoreOverrideCursor() self.setMouseTracking(False) def wheelEvent(self, event): if self.parent.bestFit: event.ignore() # probably not needed return if event.angleDelta().y() > 0: self.parent.zoomIn() else: self.parent.zoomOut() def setPixmap(self, pixmap): self.pixmap = pixmap if pixmap is None: return self.m_rect = self.pixmap.rect() self.m_rect.translate(-self.m_rect.center()) self.update() def scale(self, factor): self.scalefactor = factor print(f"ImaveViewer.scalefactor={self.scalefactor}") # self.label.resize(self.scalefactor * self.label.size()) self.update() def sizeHint(self): return QSize(400, 400) @pyqtSlot() def pixmapReset(self): self.scalefactor = 1.0 self.update() class DetailsDialog(DetailsDialogBase): def __init__(self, parent, app): super().__init__(parent, app) self.selectedPixmap = None self.referencePixmap = None self.scaledSelectedPixmap = None self.scaledReferencePixmap = None self.scaleFactor = 1.0 self.bestFit = True def setupActions(self): # (name, shortcut, icon, desc, func) ACTIONS = [ ( # FIXME probably not used right now "actionSwap", QKeySequence.Backspace, "swap", tr("Swap images"), self.swapImages, ), ( "actionZoomIn", QKeySequence.ZoomIn, "zoom-in", tr("Increase zoom factor"), self.zoomIn, ), ( "actionZoomOut", QKeySequence.ZoomOut, "zoom-out", tr("Decrease zoom factor"), self.zoomOut, ), ( "actionNormalSize", QKeySequence.Refresh, "zoom-normal", tr("Normal size"), self.zoomNormalSize, ), ( "actionBestFit", tr("Ctrl+p"), "zoom-reset", tr("Best fit"), self.zoomBestFit, ) ] createActions(ACTIONS, self) def _setupUi(self): self.setupActions() self.setWindowTitle(tr("Details")) self.resize(502, 295) self.setMinimumSize(QSize(250, 250)) self.verticalLayout = QVBoxLayout(self) self.verticalLayout.setSpacing(0) self.verticalLayout.setContentsMargins(0, 0, 0, 0) # self.horizontalLayout = QHBoxLayout() self.horizontalLayout = QGridLayout() self.horizontalLayout.setColumnMinimumWidth(1, 30) self.horizontalLayout.setColumnStretch(0,1) self.horizontalLayout.setColumnStretch(1,0) self.horizontalLayout.setColumnStretch(2,1) self.horizontalLayout.setSpacing(4) self.selectedImage = ImageViewer(self) # self.selectedImage = QLabel(self) # sizePolicy = QSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored) # sizePolicy.setHorizontalStretch(0) # sizePolicy.setVerticalStretch(0) # sizePolicy.setHeightForWidth( # self.selectedImage.sizePolicy().hasHeightForWidth() # ) # self.selectedImage.setSizePolicy(sizePolicy) # self.selectedImage.setScaledContents(False) # self.selectedImage.setAlignment(Qt.AlignCenter) # # self.horizontalLayout.addWidget(self.selectedImage) self.horizontalLayout.addWidget(self.selectedImage, 0, 0, 3, 1) self.verticalToolBar = QToolBar(self) self.verticalToolBar.setOrientation(Qt.Orientation(2)) # self.subVLayout = QVBoxLayout(self) # self.subVLayout.addWidget(self.verticalToolBar) # self.horizontalLayout.addLayout(self.subVLayout) self.buttonImgSwap = QToolButton(self.verticalToolBar) self.buttonImgSwap.setToolButtonStyle(Qt.ToolButtonIconOnly) self.buttonImgSwap.setIcon(QIcon.fromTheme('document-revert', \ self.style().standardIcon(QStyle.SP_BrowserReload))) self.buttonImgSwap.setText('Swap images') self.buttonImgSwap.setToolTip('Swap images') self.buttonImgSwap.pressed.connect(self.swapImages) self.buttonImgSwap.released.connect(self.deswapImages) self.buttonZoomIn = QToolButton(self.verticalToolBar) self.buttonZoomIn.setToolButtonStyle(Qt.ToolButtonIconOnly) self.buttonZoomIn.setDefaultAction(self.actionZoomIn) self.buttonZoomIn.setText('ZoomIn') self.buttonZoomIn.setIcon(QIcon.fromTheme(('zoom-in'), QIcon(":images/zoom-in.png"))) self.buttonZoomOut = QToolButton(self.verticalToolBar) self.buttonZoomOut.setToolButtonStyle(Qt.ToolButtonIconOnly) self.buttonZoomOut.setDefaultAction(self.actionZoomOut) self.buttonZoomOut.setText('ZoomOut') self.buttonZoomOut.setIcon(QIcon.fromTheme('zoom-out')) self.buttonZoomOut.setEnabled(False) self.buttonNormalSize = QToolButton(self.verticalToolBar) self.buttonNormalSize.setToolButtonStyle(Qt.ToolButtonIconOnly) self.buttonNormalSize.setDefaultAction(self.actionNormalSize) self.buttonNormalSize.setText('Normal Size') self.buttonNormalSize.setIcon(QIcon.fromTheme('zoom-original')) self.buttonNormalSize.setEnabled(True) self.buttonBestFit = QToolButton(self.verticalToolBar) self.buttonBestFit.setToolButtonStyle(Qt.ToolButtonIconOnly) self.buttonBestFit.setDefaultAction(self.actionBestFit) self.buttonBestFit.setText('BestFit') self.buttonBestFit.setIcon(QIcon.fromTheme('zoom-best-fit')) self.buttonBestFit.setEnabled(False) self.verticalToolBar.addWidget(self.buttonImgSwap) self.verticalToolBar.addWidget(self.buttonZoomIn) self.verticalToolBar.addWidget(self.buttonZoomOut) self.verticalToolBar.addWidget(self.buttonNormalSize) self.verticalToolBar.addWidget(self.buttonBestFit) self.horizontalLayout.addWidget(self.verticalToolBar, 1, 1, 1, 1, Qt.AlignCenter) # self.horizontalLayout.addWidget(self.verticalToolBar, Qt.AlignVCenter) self.referenceImage = ImageViewer(self) # self.referenceImage = QLabel(self) # sizePolicy = QSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored) # sizePolicy.setHorizontalStretch(0) # sizePolicy.setVerticalStretch(0) # sizePolicy.setHeightForWidth( # self.referenceImage.sizePolicy().hasHeightForWidth() # ) # self.referenceImage.setSizePolicy(sizePolicy) # self.referenceImage.setAlignment(Qt.AlignCenter) self.horizontalLayout.addWidget(self.referenceImage, 0, 2, 3, 1) # self.horizontalLayout.addWidget(self.referenceImage) self.verticalLayout.addLayout(self.horizontalLayout) self.tableView = DetailsTable(self) sizePolicy = QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed) sizePolicy.setHorizontalStretch(0) sizePolicy.setVerticalStretch(0) sizePolicy.setHeightForWidth(self.tableView.sizePolicy().hasHeightForWidth()) self.tableView.setSizePolicy(sizePolicy) self.tableView.setMinimumSize(QSize(0, 188)) self.tableView.setMaximumSize(QSize(16777215, 190)) self.tableView.setAlternatingRowColors(True) self.tableView.setSelectionBehavior(QAbstractItemView.SelectRows) self.tableView.setShowGrid(False) self.verticalLayout.addWidget(self.tableView) def _update(self): if not self.app.model.selected_dupes: return dupe = self.app.model.selected_dupes[0] group = self.app.model.results.get_group_of_duplicate(dupe) ref = group.ref self.resetState() self.selectedPixmap = QPixmap(str(dupe.path)) if ref is dupe: self.referencePixmap = None self.scaledReferencePixmap = None self.buttonImgSwap.setEnabled(False) else: self.referencePixmap = QPixmap(str(ref.path)) self.buttonImgSwap.setEnabled(True) self._updateImages() def _updateImages(self): target_size = None if self.selectedPixmap is not None: target_size = self.selectedImage.size() if not self.bestFit: # zoomed in state, expand self.scaledSelectedPixmap = self.selectedPixmap.scaled( target_size, Qt.KeepAspectRatioByExpanding, Qt.SmoothTransformation) else: # best fit, keep ratio always self.scaledSelectedPixmap = self.selectedPixmap.scaled( target_size, Qt.KeepAspectRatio, Qt.SmoothTransformation) self.selectedImage.setPixmap(self.scaledSelectedPixmap) # self.selectedImage.adjustSize() else: self.selectedImage.setPixmap(QPixmap()) if self.referencePixmap is not None: # the selectedImage viewer widget sometimes ends up being bigger # than the referenceImage viewer, which distorts by one pixel the # scaled down pixmap for the reference, hence we'll reuse its size here. # target_size = self.selectedImage.size() if not self.bestFit: self.scaledReferencePixmap = self.referencePixmap.scaled( target_size, Qt.KeepAspectRatioByExpanding, Qt.SmoothTransformation) else: self.scaledReferencePixmap = self.referencePixmap.scaled( target_size, Qt.KeepAspectRatio, Qt.SmoothTransformation) self.referenceImage.setPixmap(self.scaledReferencePixmap) else: self.referenceImage.setPixmap(QPixmap()) # --- Override def resizeEvent(self, event): if not self.bestFit: return self._updateImages() def show(self): DetailsDialogBase.show(self) self._update() # model --> view def refresh(self): DetailsDialogBase.refresh(self) if self.isVisible(): self._update() def resetState(self): self.scaledReferencePixmap = None self.scaledSelectedPixmapPixmap = None self.buttonZoomIn.setEnabled(False) self.buttonZoomOut.setEnabled(False) self.buttonBestFit.setEnabled(False) # active mode by default self.buttonNormalSize.setEnabled(True) self.bestFit = True self.scaleFactor = 1.0 def scaleImages(self, factor): self.scaleFactor *= factor print(f'QDialog scaleFactor = {self.scaleFactor} (+factor {factor})') # returns QSize, not good anymore # self.referenceImage.scale(self.scaleFactor * self.referencePixmap.size()) # self.selectedImage.scale(self.scaleFactor * self.selectedPixmap.size()) self.referenceImage.scale(self.scaleFactor) self.selectedImage.scale(self.scaleFactor) self.buttonZoomIn.setEnabled(self.scaleFactor < 6.0) self.buttonZoomOut.setEnabled(self.scaleFactor > 1.0) self.buttonBestFit.setEnabled(self.bestFit is False) self.buttonNormalSize.setEnabled(self.scaleFactor != 1.0) @pyqtSlot() def swapImages(self): """ Swap pixmaps between ImageViewers """ # self.horizontalLayout.replaceWidget(self.selectedImage, self.referenceImage) # self._tempPixmap = self.referencePixmap # referencePixmap = self.selectedPixmap # self.selectedPixmap = self._tempPixmap # self._updateImages() if self.bestFit: self.selectedImage.setPixmap(self.scaledReferencePixmap) self.referenceImage.setPixmap(self.scaledSelectedPixmap) else: self.selectedImage.setPixmap(self.referencePixmap) self.referenceImage.setPixmap(self.selectedPixmap) # swap the columns in the details table as well self.tableView.horizontalHeader().swapSections(1, 2) @pyqtSlot() def deswapImages(self): """ Restore swapped pixmaps """ if self.bestFit: self.selectedImage.setPixmap(self.scaledSelectedPixmap) self.referenceImage.setPixmap(self.scaledReferencePixmap) else: self.selectedImage.setPixmap(self.selectedPixmap) self.referenceImage.setPixmap(self.referencePixmap) self.tableView.horizontalHeader().swapSections(1, 2) @pyqtSlot() def zoomIn(self): self.scaleImages(1.25) @pyqtSlot() def zoomOut(self): self.scaleImages(0.8) @pyqtSlot() def scale_to_bestfit(self): self.referenceImage.scale(self.scaleFactor) self.selectedImage.scale(self.scaleFactor) self._updateImages() @pyqtSlot() def zoomBestFit(self): self.bestFit = True self.scaleFactor = 1.0 self.buttonBestFit.setEnabled(False) self.buttonZoomOut.setEnabled(False) self.buttonZoomIn.setEnabled(False) self.buttonNormalSize.setEnabled(True) self.scale_to_bestfit() @pyqtSlot() def zoomNormalSize(self): self.bestFit = False self.scaleFactor = 1.0 self.selectedImage.setPixmap(self.selectedPixmap) if self.referencePixmap is None: self.referenceImage.setPixmap(QPixmap()) else: self.referenceImage.setPixmap(self.referencePixmap) self.selectedImage.pixmapReset() self.referenceImage.pixmapReset() # self.referenceImage.label.resize(self.scaleFactor * self.referencePixmap.size()) # self.selectedImage.label.resize(self.scaleFactor * self.selectedPixmap.size()) # self.referenceImage.label.adjustSize() # self.selectedImage.label.adjustSize() self.buttonNormalSize.setEnabled(False) self.buttonZoomIn.setEnabled(True) self.buttonZoomOut.setEnabled(True) self.buttonBestFit.setEnabled(True) # self._updateImages()