Working synchronized views.
This commit is contained in:
glubsy
parent
a29f3fb407
commit
60ddb9b596
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@ -4,8 +4,8 @@
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# which should be included with this package. The terms are also available at
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# http://www.gnu.org/licenses/gpl-3.0.html
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from PyQt5.QtCore import Qt, QSize, QRectF, QPointF, pyqtSlot, pyqtSignal, QEvent
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from PyQt5.QtGui import QPixmap, QIcon, QKeySequence, QPainter, QPalette
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from PyQt5.QtCore import Qt, QSize, pyqtSlot, pyqtSignal
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from PyQt5.QtGui import QPixmap, QIcon, QKeySequence
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from PyQt5.QtWidgets import (
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QVBoxLayout,
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QAbstractItemView,
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@ -18,9 +18,7 @@ from PyQt5.QtWidgets import (
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QStyle,
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QAction,
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QWidget,
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QScrollArea,
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QApplication,
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QAbstractScrollArea
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)
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from hscommon.trans import trget
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@ -28,132 +26,16 @@ from hscommon import desktop
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from ..details_dialog import DetailsDialog as DetailsDialogBase
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from ..details_table import DetailsTable
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from qtlib.util import createActions
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from qt.pe.image_viewer import ImageViewer
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tr = trget("ui")
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class ImageViewer(QWidget):
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""" Displays image and allow manipulations """
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mouseMoved = pyqtSignal(QPointF)
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def __init__(self, parent):
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super().__init__(parent)
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self.parent = parent
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self.app = QApplication
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self.pixmap = QPixmap()
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self.m_rect = QRectF()
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self.reference = QPointF()
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self.delta = QPointF()
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self.scalefactor = 1.0
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self.m_drag = False
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self.area = QScrollArea(parent)
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self.area.setBackgroundRole(QPalette.Dark)
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self.area.setWidgetResizable(True)
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self.area.setSizeAdjustPolicy(QAbstractScrollArea.AdjustToContents)
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# self.area.viewport().setAttribute(Qt.WA_StaticContents)
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self.label = QLabel()
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sizePolicy = QSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored)
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sizePolicy.setHorizontalStretch(0)
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sizePolicy.setVerticalStretch(0)
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sizePolicy.setHeightForWidth(self.label.sizePolicy().hasHeightForWidth())
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self.label.setBackgroundRole(QPalette.Base)
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self.label.setSizePolicy(sizePolicy)
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self.label.setAlignment(Qt.AlignCenter)
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self.label.setScaledContents(True)
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self.area.setWidget(self.label)
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self.area.setVisible(False)
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@pyqtSlot(QPointF)
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def slot_paint_event(self, delta):
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self.delta = delta
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self.update()
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def paintEvent(self, event):
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painter = QPainter(self)
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painter.translate(self.rect().center())
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painter.scale(self.scalefactor, self.scalefactor)
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painter.translate(self.delta)
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painter.drawPixmap(self.m_rect.topLeft(), self.pixmap)
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# print(f"paint event, delta={self.delta}")
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def setCenter(self):
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""" Resets origin """
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self.delta = QPointF()
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self.update()
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def mousePressEvent(self, event):
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if self.parent.bestFit:
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event.ignore()
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return
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if event.buttons() == Qt.LeftButton:
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self.m_drag = True
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self.reference = event.pos()
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self.app.setOverrideCursor(Qt.ClosedHandCursor)
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self.setMouseTracking(True)
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def mouseMoveEvent(self, event):
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if self.parent.bestFit:
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event.ignore()
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return
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self.delta += (event.pos() - self.reference) * 1.0/self.scalefactor
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self.reference = event.pos()
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if self.m_drag:
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self.mouseMoved.emit(self.delta)
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self.update()
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def mouseReleaseEvent(self, event):
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if self.parent.bestFit:
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event.ignore()
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return
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if event.buttons() == Qt.LeftButton:
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m_drag = False
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self.app.restoreOverrideCursor()
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self.setMouseTracking(False)
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def wheelEvent(self, event):
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if self.parent.bestFit:
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event.ignore()
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return
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if event.angleDelta().y() > 0:
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self.parent.zoomIn()
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else:
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self.parent.zoomOut()
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def setPixmap(self, pixmap):
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self.pixmap = pixmap
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if pixmap is None:
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return
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self.m_rect = self.pixmap.rect()
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self.m_rect.translate(-self.m_rect.center())
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self.update()
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def scale(self, factor):
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self.scalefactor = factor
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# self.label.resize(self.scalefactor * self.label.size())
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self.update()
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def sizeHint(self):
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return QSize(400, 400)
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@pyqtSlot()
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def pixmapReset(self):
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self.scalefactor = 1.0
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self.update()
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class DetailsDialog(DetailsDialogBase):
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def __init__(self, parent, app):
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super().__init__(parent, app)
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self.selectedPixmap = None
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self.referencePixmap = None
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self.scaledSelectedPixmap = None
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self.scaledReferencePixmap = None
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self.selectedPixmap = QPixmap()
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self.referencePixmap = QPixmap()
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self.scaledSelectedPixmap = QPixmap()
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self.scaledReferencePixmap = QPixmap()
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self.scaleFactor = 1.0
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self.bestFit = True
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@ -215,7 +97,7 @@ class DetailsDialog(DetailsDialogBase):
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self.horizontalLayout.setColumnStretch(2,1)
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self.horizontalLayout.setSpacing(4)
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self.selectedImage = ImageViewer(self)
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self.selectedImage = ImageViewer(self, "selectedImage")
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# self.selectedImage = QLabel(self)
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# sizePolicy = QSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored)
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# sizePolicy.setHorizontalStretch(0)
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@ -280,7 +162,7 @@ class DetailsDialog(DetailsDialogBase):
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self.horizontalLayout.addWidget(self.verticalToolBar, 1, 1, 1, 1, Qt.AlignCenter)
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# self.horizontalLayout.addWidget(self.verticalToolBar, Qt.AlignVCenter)
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self.referenceImage = ImageViewer(self)
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self.referenceImage = ImageViewer(self, "referenceImage")
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# self.referenceImage = QLabel(self)
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# sizePolicy = QSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored)
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# sizePolicy.setHorizontalStretch(0)
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@ -306,11 +188,12 @@ class DetailsDialog(DetailsDialogBase):
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self.tableView.setShowGrid(False)
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self.verticalLayout.addWidget(self.tableView)
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self.referenceImage.mouseMoved.connect(self.selectedImage.slot_paint_event)
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self.selectedImage.mouseMoved.connect(self.referenceImage.slot_paint_event)
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self.disable_buttons()
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def _update(self):
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print("_update()")
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if not self.app.model.selected_dupes:
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self.clear_all()
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return
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dupe = self.app.model.selected_dupes[0]
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group = self.app.model.results.get_group_of_duplicate(dupe)
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@ -318,33 +201,43 @@ class DetailsDialog(DetailsDialogBase):
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self.resetState()
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self.selectedPixmap = QPixmap(str(dupe.path))
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if ref is dupe:
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self.referencePixmap = None
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self.scaledReferencePixmap = None
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if ref is dupe: # currently selected file is the ref
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self.referencePixmap = QPixmap()
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self.scaledReferencePixmap = QPixmap()
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self.buttonImgSwap.setEnabled(False)
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# disable the blank widget.
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self.disable_widget(self.referenceImage)
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else:
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self.referencePixmap = QPixmap(str(ref.path))
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self.buttonImgSwap.setEnabled(True)
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self.enable_widget(self.referenceImage)
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self.update_selected_widget()
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self.update_reference_widget()
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self._updateImages()
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def _updateImages(self):
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target_size = None
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if self.selectedPixmap is not None:
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if self.selectedPixmap.isNull():
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# self.disable_widget(self.selectedImage, self.referenceImage)
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pass
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else:
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target_size = self.selectedImage.size()
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if not self.bestFit:
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# zoomed in state, expand
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self.scaledSelectedPixmap = self.selectedPixmap.scaled(
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target_size, Qt.KeepAspectRatioByExpanding, Qt.SmoothTransformation)
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else: # best fit, keep ratio always
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else:
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# best fit, keep ratio always
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self.scaledSelectedPixmap = self.selectedPixmap.scaled(
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target_size, Qt.KeepAspectRatio, Qt.SmoothTransformation)
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self.selectedImage.setPixmap(self.scaledSelectedPixmap)
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# self.selectedImage.adjustSize()
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else:
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self.selectedImage.setPixmap(QPixmap())
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if self.referencePixmap is not None:
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if self.referencePixmap.isNull():
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# self.disable_widget(self.referenceImage, self.selectedImage)
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pass
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else:
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# the selectedImage viewer widget sometimes ends up being bigger
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# than the referenceImage viewer, which distorts by one pixel the
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# scaled down pixmap for the reference, hence we'll reuse its size here.
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@ -356,8 +249,90 @@ class DetailsDialog(DetailsDialogBase):
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self.scaledReferencePixmap = self.referencePixmap.scaled(
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target_size, Qt.KeepAspectRatio, Qt.SmoothTransformation)
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self.referenceImage.setPixmap(self.scaledReferencePixmap)
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def update_selected_widget(self):
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print("update_selected_widget()")
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if not self.selectedPixmap.isNull():
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self.enable_widget(self.selectedImage)
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self.connect_signal(self.selectedImage, self.referenceImage)
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else:
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self.referenceImage.setPixmap(QPixmap())
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self.disable_widget(self.selectedImage)
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self.disconnect_signal(self.referenceImage)
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def update_reference_widget(self):
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print("update_reference_widget()")
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if not self.referencePixmap.isNull():
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self.enable_widget(self.referenceImage)
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self.connect_signal(self.referenceImage, self.selectedImage)
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else:
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self.disable_widget(self.referenceImage)
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self.disconnect_signal(self.selectedImage)
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def enable_widget(self, widget):
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"""We want to receive signals from the other_widget."""
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print(f"enable_widget({widget})")
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if not widget.isEnabled():
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widget.setEnabled(True)
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def disable_widget(self, widget):
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"""Disables this widget and prevents receiving signals from other_widget."""
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print(f"disable_widget({widget})")
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widget.setPixmap(QPixmap())
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widget.setDisabled(True)
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def connect_signal(self, widget, other_widget):
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"""We want this widget to send its signal to the other_widget."""
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print(f"connect_signal({widget}, {other_widget})")
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if widget.connection is None:
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if other_widget.isEnabled():
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widget.connection = widget.mouseMoved.connect(other_widget.slot_paint_event)
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print(f"Connected signal from {widget} to slot of {other_widget}")
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def disconnect_signal(self, other_widget):
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"""We don't want this widget to send its signal anymore to the other_widget."""
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print(f"disconnect_signal({other_widget}")
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if other_widget.connection:
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other_widget.mouseMoved.disconnect()
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other_widget.connection = None
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print(f"Disconnected signal from {other_widget}")
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def resetState(self):
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self.referencePixmap = QPixmap()
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self.scaledReferencePixmap = QPixmap()
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self.selectedPixmap = QPixmap()
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self.scaledSelectedPixmap = QPixmap()
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self.buttonZoomIn.setEnabled(False)
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self.buttonZoomOut.setEnabled(False)
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self.buttonBestFit.setEnabled(False) # active mode by default
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self.buttonNormalSize.setEnabled(True)
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self.bestFit = True
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self.scaleFactor = 1.0
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self.referenceImage.setCenter()
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self.selectedImage.setCenter()
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def clear_all(self):
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"""No item from the model, disable and clear everything."""
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self.resetState()
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self.selectedPixmap = QPixmap()
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self.scaledSelectedPixmap = QPixmap()
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self.selectedImage.setPixmap(QPixmap())
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self.selectedImage.setDisabled(True)
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self.referencePixmap = QPixmap()
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self.scaledReferencePixmap = QPixmap()
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self.referenceImage.setPixmap(QPixmap())
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self.referenceImage.setDisabled(True)
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self.buttonImgSwap.setDisabled(True)
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self.buttonNormalSize.setDisabled(True)
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def disable_buttons(self):
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self.buttonImgSwap.setEnabled(False)
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self.buttonZoomIn.setEnabled(False)
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self.buttonZoomOut.setEnabled(False)
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self.buttonNormalSize.setEnabled(False)
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self.buttonBestFit.setEnabled(False)
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# --- Override
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def resizeEvent(self, event):
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@ -366,32 +341,22 @@ class DetailsDialog(DetailsDialogBase):
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self._updateImages()
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def show(self):
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print("show()")
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DetailsDialogBase.show(self)
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self._update()
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# model --> view
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def refresh(self):
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print("refresh()")
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DetailsDialogBase.refresh(self)
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if self.isVisible():
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self._update()
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def resetState(self):
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self.scaledReferencePixmap = None
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self.scaledSelectedPixmapPixmap = None
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self.buttonZoomIn.setEnabled(False)
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self.buttonZoomOut.setEnabled(False)
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self.buttonBestFit.setEnabled(False) # active mode by default
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self.buttonNormalSize.setEnabled(True)
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self.bestFit = True
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self.scaleFactor = 1.0
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# ImageViewers
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def scaleImages(self, factor):
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self.scaleFactor *= factor
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print(f'QDialog scaleFactor = {self.scaleFactor} (+factor {factor})')
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# returns QSize, not good anymore
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# self.referenceImage.scale(self.scaleFactor * self.referencePixmap.size())
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# self.selectedImage.scale(self.scaleFactor * self.selectedPixmap.size())
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print(f'QDialog scaleFactor = {self.scaleFactor} (+factor {factor})')
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self.referenceImage.scale(self.scaleFactor)
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self.selectedImage.scale(self.scaleFactor)
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@ -403,14 +368,7 @@ class DetailsDialog(DetailsDialogBase):
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@pyqtSlot()
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def swapImages(self):
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""" Swap pixmaps between ImageViewers """
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# self.horizontalLayout.replaceWidget(self.selectedImage, self.referenceImage)
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# self._tempPixmap = self.referencePixmap
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# referencePixmap = self.selectedPixmap
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# self.selectedPixmap = self._tempPixmap
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# self._updateImages()
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"""Swap pixmaps between ImageViewers."""
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if self.bestFit:
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self.selectedImage.setPixmap(self.scaledReferencePixmap)
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self.referenceImage.setPixmap(self.scaledSelectedPixmap)
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@ -423,7 +381,7 @@ class DetailsDialog(DetailsDialogBase):
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@pyqtSlot()
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def deswapImages(self):
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""" Restore swapped pixmaps """
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"""Restore swapped pixmaps between ImageViewers."""
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if self.bestFit:
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self.selectedImage.setPixmap(self.scaledSelectedPixmap)
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self.referenceImage.setPixmap(self.scaledReferencePixmap)
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@ -465,22 +423,15 @@ class DetailsDialog(DetailsDialogBase):
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self.scaleFactor = 1.0
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self.selectedImage.setPixmap(self.selectedPixmap)
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if self.referencePixmap is None:
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self.referenceImage.setPixmap(QPixmap())
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else:
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self.referenceImage.setPixmap(self.referencePixmap)
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self.referenceImage.setPixmap(self.referencePixmap)
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self.selectedImage.pixmapReset()
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self.referenceImage.pixmapReset()
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# self.referenceImage.label.resize(self.scaleFactor * self.referencePixmap.size())
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# self.selectedImage.label.resize(self.scaleFactor * self.selectedPixmap.size())
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# self.referenceImage.label.adjustSize()
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# self.selectedImage.label.adjustSize()
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self.update_selected_widget()
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self.update_reference_widget()
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self.buttonNormalSize.setEnabled(False)
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self.buttonZoomIn.setEnabled(True)
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self.buttonZoomOut.setEnabled(True)
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self.buttonBestFit.setEnabled(True)
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# self._updateImages()
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@ -0,0 +1,141 @@
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# This software is licensed under the "GPLv3" License as described in the "LICENSE" file,
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# which should be included with this package. The terms are also available at
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# http://www.gnu.org/licenses/gpl-3.0.html
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from PyQt5.QtCore import Qt, QSize, QRectF, QPointF, pyqtSlot, pyqtSignal, QEvent
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from PyQt5.QtGui import QPixmap, QPainter, QPalette
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from PyQt5.QtWidgets import ( QLabel, QSizePolicy, QWidget, QScrollArea,
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QApplication, QAbstractScrollArea )
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class ImageViewer(QWidget):
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"""Displays image and allows manipulations."""
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mouseMoved = pyqtSignal(QPointF)
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def __init__(self, parent, name=""):
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super().__init__(parent)
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self.parent = parent
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self.app = QApplication
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self.pixmap = QPixmap()
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self.m_rect = QRectF()
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self.reference = QPointF()
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self.delta = QPointF()
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self.scalefactor = 1.0
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self.drag = False
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self.connection = None # signal bound to a slot
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self.instance_name = name
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self.area = QScrollArea(parent)
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self.area.setBackgroundRole(QPalette.Dark)
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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 __repr__(self):
|
||||
return f'{self.instance_name}'
|
||||
|
||||
@pyqtSlot(QPointF)
|
||||
def slot_paint_event(self, delta):
|
||||
self.delta = delta
|
||||
self.update()
|
||||
print(f"{self} received signal from {self.sender()}")
|
||||
|
||||
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)
|
||||
# print(f"{self} paintEvent delta={self.delta}")
|
||||
|
||||
def setCenter(self):
|
||||
""" Resets origin """
|
||||
self.delta = QPointF()
|
||||
self.scalefactor = 1.0
|
||||
self.scale(self.scalefactor)
|
||||
self.update()
|
||||
|
||||
def changeEvent(self, event):
|
||||
if event.type() == QEvent.EnabledChange:
|
||||
print(f"{self} is now {'enabled' if self.isEnabled() else 'disabled'}")
|
||||
|
||||
def mousePressEvent(self, event):
|
||||
if self.parent.bestFit:
|
||||
event.ignore()
|
||||
return
|
||||
if event.buttons() == Qt.LeftButton:
|
||||
self.drag = True
|
||||
|
||||
self.reference = event.pos()
|
||||
self.app.setOverrideCursor(Qt.ClosedHandCursor)
|
||||
self.setMouseTracking(True)
|
||||
|
||||
def mouseMoveEvent(self, event):
|
||||
if self.parent.bestFit:
|
||||
event.ignore()
|
||||
return
|
||||
|
||||
self.delta += (event.pos() - self.reference) * 1.0/self.scalefactor
|
||||
self.reference = event.pos()
|
||||
if self.drag:
|
||||
self.mouseMoved.emit(self.delta)
|
||||
self.update()
|
||||
|
||||
def mouseReleaseEvent(self, event):
|
||||
if self.parent.bestFit:
|
||||
event.ignore()
|
||||
return
|
||||
if event.buttons() == Qt.LeftButton:
|
||||
drag = False
|
||||
|
||||
self.app.restoreOverrideCursor()
|
||||
self.setMouseTracking(False)
|
||||
|
||||
def wheelEvent(self, event):
|
||||
if self.parent.bestFit:
|
||||
event.ignore()
|
||||
return
|
||||
|
||||
if event.angleDelta().y() > 0:
|
||||
self.parent.zoomIn()
|
||||
else:
|
||||
self.parent.zoomOut()
|
||||
|
||||
def setPixmap(self, pixmap):
|
||||
if pixmap.isNull():
|
||||
if not self.pixmap.isNull():
|
||||
self.pixmap = pixmap
|
||||
self.update()
|
||||
return
|
||||
elif not self.isEnabled():
|
||||
self.setEnabled(True)
|
||||
self.pixmap = pixmap
|
||||
self.m_rect = self.pixmap.rect()
|
||||
self.m_rect.translate(-self.m_rect.center())
|
||||
self.update()
|
||||
|
||||
def scale(self, factor):
|
||||
self.scalefactor = factor
|
||||
# self.label.resize(self.scalefactor * self.label.size())
|
||||
self.update()
|
||||
|
||||
def sizeHint(self):
|
||||
return QSize(400, 400)
|
||||
|
||||
@pyqtSlot()
|
||||
def pixmapReset(self):
|
||||
"""Called when the pixmap is set back to original size."""
|
||||
self.scalefactor = 1.0
|
||||
self.update()
|
||||
Loading…
Reference in New Issue