#!/usr/bin/env python
#############################################################################
##
## Copyright (C) 2013 Riverbank Computing Limited.
## Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
## All rights reserved.
##
## This file is part of the examples of PyQt.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
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## met:
## * Redistributions of source code must retain the above copyright
## notice, this list of conditions and the following disclaimer.
## * Redistributions in binary form must reproduce the above copyright
## notice, this list of conditions and the following disclaimer in
## the documentation and/or other materials provided with the
## distribution.
## * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
## the names of its contributors may be used to endorse or promote
## products derived from this software without specific prior written
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## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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## $QT_END_LICENSE$
##
#############################################################################
from PyQt5.QtCore import QFileInfo, QRegExp, QSize, Qt
from PyQt5.QtGui import QIcon, QImage, QPalette, QPixmap
from PyQt5.QtWidgets import (QAbstractItemView, QAction, QActionGroup,
QApplication, QComboBox, QFileDialog, QFrame, QGridLayout, QGroupBox,
QHBoxLayout, QHeaderView, QItemDelegate, QLabel, QMainWindow,
QMessageBox, QRadioButton, QSizePolicy, QSpinBox, QStyle,
QStyleFactory, QTableWidget, QTableWidgetItem, QVBoxLayout, QWidget)
class IconSizeSpinBox(QSpinBox):
@staticmethod
def valueFromText(text):
regExp = QRegExp("(\\d+)(\\s*[xx]\\s*\\d+)?")
if regExp.exactMatch(text):
return int(regExp.cap(1))
else:
return 0
@staticmethod
def textFromValue(value):
return "%d x %d" % (value, value)
class ImageDelegate(QItemDelegate):
def createEditor(self, parent, option, index):
comboBox = QComboBox(parent)
if index.column() == 1:
comboBox.addItem("Normal")
comboBox.addItem("Active")
comboBox.addItem("Disabled")
comboBox.addItem("Selected")
elif index.column() == 2:
comboBox.addItem("Off")
comboBox.addItem("On")
comboBox.activated.connect(self.emitCommitData)
return comboBox
def setEditorData(self, editor, index):
comboBox = editor
if not comboBox:
return
pos = comboBox.findText(index.model().data(index), Qt.MatchExactly)
comboBox.setCurrentIndex(pos)
def setModelData(self, editor, model, index):
comboBox = editor
if not comboBox:
return
model.setData(index, comboBox.currentText())
def emitCommitData(self):
self.commitData.emit(self.sender())
class IconPreviewArea(QWidget):
def __init__(self, parent=None):
super(IconPreviewArea, self).__init__(parent)
mainLayout = QGridLayout()
self.setLayout(mainLayout)
self.icon = QIcon()
self.size = QSize()
self.stateLabels = []
self.modeLabels = []
self.pixmapLabels = []
self.stateLabels.append(self.createHeaderLabel("Off"))
self.stateLabels.append(self.createHeaderLabel("On"))
self.modeLabels.append(self.createHeaderLabel("Normal"))
self.modeLabels.append(self.createHeaderLabel("Active"))
self.modeLabels.append(self.createHeaderLabel("Disabled"))
self.modeLabels.append(self.createHeaderLabel("Selected"))
for j, label in enumerate(self.stateLabels):
mainLayout.addWidget(label, j + 1, 0)
for i, label in enumerate(self.modeLabels):
mainLayout.addWidget(label, 0, i + 1)
self.pixmapLabels.append([])
for j in range(len(self.stateLabels)):
self.pixmapLabels[i].append(self.createPixmapLabel())
mainLayout.addWidget(self.pixmapLabels[i][j], j + 1, i + 1)
def setIcon(self, icon):
self.icon = icon
self.updatePixmapLabels()
def setSize(self, size):
if size != self.size:
self.size = size
self.updatePixmapLabels()
def createHeaderLabel(self, text):
label = QLabel("<b>%s</b>" % text)
label.setAlignment(Qt.AlignCenter)
return label
def createPixmapLabel(self):
label = QLabel()
label.setEnabled(False)
label.setAlignment(Qt.AlignCenter)
label.setFrameShape(QFrame.Box)
label.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)
label.setBackgroundRole(QPalette.Base)
label.setAutoFillBackground(True)
label.setMinimumSize(132, 132)
return label
def updatePixmapLabels(self):
for i in range(len(self.modeLabels)):
if i == 0:
mode = QIcon.Normal
elif i == 1:
mode = QIcon.Active
elif i == 2:
mode = QIcon.Disabled
else:
mode = QIcon.Selected
for j in range(len(self.stateLabels)):
state = QIcon.Off if j == 0 else QIcon.On
pixmap = self.icon.pixmap(self.size, mode, state)
self.pixmapLabels[i][j].setPixmap(pixmap)
self.pixmapLabels[i][j].setEnabled(not pixmap.isNull())
class MainWindow(QMainWindow):
def __init__(self, parent=None):
super(MainWindow, self).__init__(parent)
self.centralWidget = QWidget()
self.setCentralWidget(self.centralWidget)
self.createPreviewGroupBox()
self.createImagesGroupBox()
self.createIconSizeGroupBox()
self.createActions()
self.createMenus()
self.createContextMenu()
mainLayout = QGridLayout()
mainLayout.addWidget(self.previewGroupBox, 0, 0, 1, 2)
mainLayout.addWidget(self.imagesGroupBox, 1, 0)
mainLayout.addWidget(self.iconSizeGroupBox, 1, 1)
self.centralWidget.setLayout(mainLayout)
self.setWindowTitle("Icons")
self.checkCurrentStyle()
self.otherRadioButton.click()
self.resize(self.minimumSizeHint())
def about(self):
QMessageBox.about(self, "About Icons",
"The <b>Icons</b> example illustrates how Qt renders an icon "
"in different modes (active, normal, disabled and selected) "
"and states (on and off) based on a set of images.")
def changeStyle(self, checked):
if not checked:
return
action = self.sender()
style = QStyleFactory.create(action.data())
if not style:
return
QApplication.setStyle(style)
self.setButtonText(self.smallRadioButton, "Small (%d x %d)",
style, QStyle.PM_SmallIconSize)
self.setButtonText(self.largeRadioButton, "Large (%d x %d)",
style, QStyle.PM_LargeIconSize)
self.setButtonText(self.toolBarRadioButton, "Toolbars (%d x %d)",
style, QStyle.PM_ToolBarIconSize)
self.setButtonText(self.listViewRadioButton, "List views (%d x %d)",
style, QStyle.PM_ListViewIconSize)
self.setButtonText(self.iconViewRadioButton, "Icon views (%d x %d)",
style, QStyle.PM_IconViewIconSize)
self.setButtonText(self.tabBarRadioButton, "Tab bars (%d x %d)",
style, QStyle.PM_TabBarIconSize)
self.changeSize()
@staticmethod
def setButtonText(button, label, style, metric):
metric_value = style.pixelMetric(metric)
button.setText(label % (metric_value, metric_value))
def changeSize(self, checked=True):
if not checked:
return
if self.otherRadioButton.isChecked():
extent = self.otherSpinBox.value()
else:
if self.smallRadioButton.isChecked():
metric = QStyle.PM_SmallIconSize
elif self.largeRadioButton.isChecked():
metric = QStyle.PM_LargeIconSize
elif self.toolBarRadioButton.isChecked():
metric = QStyle.PM_ToolBarIconSize
elif self.listViewRadioButton.isChecked():
metric = QStyle.PM_ListViewIconSize
elif self.iconViewRadioButton.isChecked():
metric = QStyle.PM_IconViewIconSize
else:
metric = QStyle.PM_TabBarIconSize
extent = QApplication.style().pixelMetric(metric)
self.previewArea.setSize(QSize(extent, extent))
self.otherSpinBox.setEnabled(self.otherRadioButton.isChecked())
def changeIcon(self):
icon = QIcon()
for row in range(self.imagesTable.rowCount()):
item0 = self.imagesTable.item(row, 0)
item1 = self.imagesTable.item(row, 1)
item2 = self.imagesTable.item(row, 2)
if item0.checkState() == Qt.Checked:
if item1.text() == "Normal":
mode = QIcon.Normal
elif item1.text() == "Active":
mode = QIcon.Active
elif item1.text() == "Disabled":
mode = QIcon.Disabled
else:
mode = QIcon.Selected
if item2.text() == "On":
state = QIcon.On
else:
state = QIcon.Off
fileName = item0.data(Qt.UserRole)
image = QImage(fileName)
if not image.isNull():
icon.addPixmap(QPixmap.fromImage(image), mode, state)
self.previewArea.setIcon(icon)
def addImage(self):
fileNames, _ = QFileDialog.getOpenFileNames(self, "Open Images", '',
"Images (*.png *.xpm *.jpg);;All Files (*)")
for fileName in fileNames:
row = self.imagesTable.rowCount()
self.imagesTable.setRowCount(row + 1)
imageName = QFileInfo(fileName).baseName()
item0 = QTableWidgetItem(imageName)
item0.setData(Qt.UserRole, fileName)
item0.setFlags(item0.flags() & ~Qt.ItemIsEditable)
item1 = QTableWidgetItem("Normal")
item2 = QTableWidgetItem("Off")
if self.guessModeStateAct.isChecked():
if '_act' in fileName:
item1.setText("Active")
elif '_dis' in fileName:
item1.setText("Disabled")
elif '_sel' in fileName:
item1.setText("Selected")
if '_on' in fileName:
item2.setText("On")
self.imagesTable.setItem(row, 0, item0)
self.imagesTable.setItem(row, 1, item1)
self.imagesTable.setItem(row, 2, item2)
self.imagesTable.openPersistentEditor(item1)
self.imagesTable.openPersistentEditor(item2)
item0.setCheckState(Qt.Checked)
def removeAllImages(self):
self.imagesTable.setRowCount(0)
self.changeIcon()
def createPreviewGroupBox(self):
self.previewGroupBox = QGroupBox("Preview")
self.previewArea = IconPreviewArea()
layout = QVBoxLayout()
layout.addWidget(self.previewArea)
self.previewGroupBox.setLayout(layout)
def createImagesGroupBox(self):
self.imagesGroupBox = QGroupBox("Images")
self.imagesTable = QTableWidget()
self.imagesTable.setSelectionMode(QAbstractItemView.NoSelection)
self.imagesTable.setItemDelegate(ImageDelegate(self))
self.imagesTable.horizontalHeader().setDefaultSectionSize(90)
self.imagesTable.setColumnCount(3)
self.imagesTable.setHorizontalHeaderLabels(("Image", "Mode", "State"))
self.imagesTable.horizontalHeader().setSectionResizeMode(0, QHeaderView.Stretch)
self.imagesTable.horizontalHeader().setSectionResizeMode(1, QHeaderView.Fixed)
self.imagesTable.horizontalHeader().setSectionResizeMode(2, QHeaderView.Fixed)
self.imagesTable.verticalHeader().hide()
self.imagesTable.itemChanged.connect(self.changeIcon)
layout = QVBoxLayout()
layout.addWidget(self.imagesTable)
self.imagesGroupBox.setLayout(layout)
def createIconSizeGroupBox(self):
self.iconSizeGroupBox = QGroupBox("Icon Size")
self.smallRadioButton = QRadioButton()
self.largeRadioButton = QRadioButton()
self.toolBarRadioButton = QRadioButton()
self.listViewRadioButton = QRadioButton()
self.iconViewRadioButton = QRadioButton()
self.tabBarRadioButton = QRadioButton()
self.otherRadioButton = QRadioButton("Other:")
self.otherSpinBox = IconSizeSpinBox()
self.otherSpinBox.setRange(8, 128)
self.otherSpinBox.setValue(64)
self.smallRadioButton.toggled.connect(self.changeSize)
self.largeRadioButton.toggled.connect(self.changeSize)
self.toolBarRadioButton.toggled.connect(self.changeSize)
self.listViewRadioButton.toggled.connect(self.changeSize)
self.iconViewRadioButton.toggled.connect(self.changeSize)
self.tabBarRadioButton.toggled.connect(self.changeSize)
self.otherRadioButton.toggled.connect(self.changeSize)
self.otherSpinBox.valueChanged.connect(self.changeSize)
otherSizeLayout = QHBoxLayout()
otherSizeLayout.addWidget(self.otherRadioButton)
otherSizeLayout.addWidget(self.otherSpinBox)
otherSizeLayout.addStretch()
layout = QGridLayout()
layout.addWidget(self.smallRadioButton, 0, 0)
layout.addWidget(self.largeRadioButton, 1, 0)
layout.addWidget(self.toolBarRadioButton, 2, 0)
layout.addWidget(self.listViewRadioButton, 0, 1)
layout.addWidget(self.iconViewRadioButton, 1, 1)
layout.addWidget(self.tabBarRadioButton, 2, 1)
layout.addLayout(otherSizeLayout, 3, 0, 1, 2)
layout.setRowStretch(4, 1)
self.iconSizeGroupBox.setLayout(layout)
def createActions(self):
self.addImagesAct = QAction("&Add Images...", self, shortcut="Ctrl+A",
triggered=self.addImage)
self.removeAllImagesAct = QAction("&Remove All Images", self,
shortcut="Ctrl+R", triggered=self.removeAllImages)
self.exitAct = QAction("&Quit", self, shortcut="Ctrl+Q",
triggered=self.close)
self.styleActionGroup = QActionGroup(self)
for styleName in QStyleFactory.keys():
action = QAction(self.styleActionGroup,
text="%s Style" % styleName, checkable=True,
triggered=self.changeStyle)
action.setData(styleName)
self.guessModeStateAct = QAction("&Guess Image Mode/State", self,
checkable=True, checked=True)
self.aboutAct = QAction("&About", self, triggered=self.about)
self.aboutQtAct = QAction("About &Qt", self,
triggered=QApplication.instance().aboutQt)
def createMenus(self):
self.fileMenu = self.menuBar().addMenu("&File")
self.fileMenu.addAction(self.addImagesAct)
self.fileMenu.addAction(self.removeAllImagesAct)
self.fileMenu.addSeparator()
self.fileMenu.addAction(self.exitAct)
self.viewMenu = self.menuBar().addMenu("&View")
for action in self.styleActionGroup.actions():
self.viewMenu.addAction(action)
self.viewMenu.addSeparator()
self.viewMenu.addAction(self.guessModeStateAct)
self.menuBar().addSeparator()
self.helpMenu = self.menuBar().addMenu("&Help")
self.helpMenu.addAction(self.aboutAct)
self.helpMenu.addAction(self.aboutQtAct)
def createContextMenu(self):
self.imagesTable.setContextMenuPolicy(Qt.ActionsContextMenu)
self.imagesTable.addAction(self.addImagesAct)
self.imagesTable.addAction(self.removeAllImagesAct)
def checkCurrentStyle(self):
for action in self.styleActionGroup.actions():
styleName = action.data()
candidate = QStyleFactory.create(styleName)
if candidate is None:
return
if candidate.metaObject().className() == QApplication.style().metaObject().className():
action.trigger()
if __name__ == '__main__':
import sys
app = QApplication(sys.argv)
mainWin = MainWindow()
mainWin.show()
sys.exit(app.exec_())
