class SvgButton(QPushButton):
def __init__(self, parent, svg_path):
QWidget.__init__(self, parent)
self.svg = QSvgWidget(self)
self.svg.load(svg_path)
self.setFocusPolicy(Qt.NoFocus)
def setSize(self, w, h) -> None:
self.resize(w, h)
self.svg.resize(w, h)
def load_svg(self, svg_path):
self.svg.load(svg_path)
class SvgDiagram(E5MainWindow):
"""
Class implementing a dialog showing a SVG graphic.
"""
ZoomLevels = [
1, 3, 5, 7, 9,
10, 20, 30, 50, 67, 80, 90,
100,
110, 120, 133, 150, 170, 200, 240, 300, 400,
500, 600, 700, 800, 900, 1000,
]
ZoomLevelDefault = 100
def __init__(self, svgFile, parent=None, name=None):
"""
Constructor
@param svgFile filename of a SVG graphics file to show (string)
@param parent parent widget of the view (QWidget)
@param name name of the view widget (string)
"""
super(SvgDiagram, self).__init__(parent)
if name:
self.setObjectName(name)
else:
self.setObjectName("SvgDiagram")
self.setWindowTitle(self.tr("SVG-Viewer"))
self.svgWidget = QSvgWidget()
self.svgWidget.setObjectName("svgWidget")
self.svgWidget.setBackgroundRole(QPalette.Base)
self.svgWidget.setSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored)
self.svgView = QScrollArea()
self.svgView.setObjectName("svgView")
self.svgView.setBackgroundRole(QPalette.Dark)
self.svgView.setWidget(self.svgWidget)
self.setCentralWidget(self.svgView)
self.__zoomWidget = E5ZoomWidget(
UI.PixmapCache.getPixmap("zoomOut.png"),
UI.PixmapCache.getPixmap("zoomIn.png"),
UI.PixmapCache.getPixmap("zoomReset.png"), self)
self.statusBar().addPermanentWidget(self.__zoomWidget)
self.__zoomWidget.setMapping(
SvgDiagram.ZoomLevels, SvgDiagram.ZoomLevelDefault)
self.__zoomWidget.valueChanged.connect(self.__doZoom)
# polish up the dialog
self.resize(QSize(800, 600).expandedTo(self.minimumSizeHint()))
self.zoom = 1.0
self.svgFile = svgFile
self.svgWidget.load(self.svgFile)
self.svgWidget.resize(self.svgWidget.renderer().defaultSize())
self.__initActions()
self.__initContextMenu()
self.__initToolBars()
self.grabGesture(Qt.PinchGesture)
def __initActions(self):
"""
Private method to initialize the view actions.
"""
self.closeAct = \
QAction(UI.PixmapCache.getIcon("close.png"),
self.tr("Close"), self)
self.closeAct.triggered.connect(self.close)
self.printAct = \
QAction(UI.PixmapCache.getIcon("print.png"),
self.tr("Print"), self)
self.printAct.triggered.connect(self.__printDiagram)
self.printPreviewAct = \
QAction(UI.PixmapCache.getIcon("printPreview.png"),
self.tr("Print Preview"), self)
self.printPreviewAct.triggered.connect(self.__printPreviewDiagram)
def __initContextMenu(self):
"""
Private method to initialize the context menu.
"""
self.__menu = QMenu(self)
self.__menu.addAction(self.closeAct)
self.__menu.addSeparator()
self.__menu.addAction(self.printPreviewAct)
self.__menu.addAction(self.printAct)
self.setContextMenuPolicy(Qt.CustomContextMenu)
self.customContextMenuRequested.connect(self.__showContextMenu)
def __showContextMenu(self, coord):
"""
Private slot to show the context menu of the listview.
@param coord the position of the mouse pointer (QPoint)
"""
self.__menu.popup(self.mapToGlobal(coord))
def __initToolBars(self):
"""
Private method to populate the toolbars with our actions.
"""
self.windowToolBar = QToolBar(self.tr("Window"), self)
self.windowToolBar.setIconSize(UI.Config.ToolBarIconSize)
self.windowToolBar.addAction(self.closeAct)
self.graphicsToolBar = QToolBar(self.tr("Graphics"), self)
self.graphicsToolBar.setIconSize(UI.Config.ToolBarIconSize)
self.graphicsToolBar.addAction(self.printPreviewAct)
self.graphicsToolBar.addAction(self.printAct)
self.addToolBar(Qt.TopToolBarArea, self.windowToolBar)
self.addToolBar(Qt.TopToolBarArea, self.graphicsToolBar)
def getDiagramName(self):
"""
Public method to retrieve a name for the diagram.
@return name for the diagram
"""
return self.svgFile
def wheelEvent(self, evt):
"""
Protected method to handle wheel events.
@param evt reference to the wheel event (QWheelEvent)
"""
if evt.modifiers() & Qt.ControlModifier:
if qVersion() >= "5.0.0":
delta = evt.angleDelta().y()
else:
delta = evt.delta()
if delta < 0:
self.__zoomOut()
else:
self.__zoomIn()
evt.accept()
return
super(SvgDiagram, self).wheelEvent(evt)
def event(self, evt):
"""
Public method handling events.
@param evt reference to the event (QEvent)
@return flag indicating, if the event was handled (boolean)
"""
if evt.type() == QEvent.Gesture:
self.gestureEvent(evt)
return True
return super(SvgDiagram, self).event(evt)
def gestureEvent(self, evt):
"""
Protected method handling gesture events.
@param evt reference to the gesture event (QGestureEvent
"""
pinch = evt.gesture(Qt.PinchGesture)
if pinch:
if pinch.state() == Qt.GestureStarted:
pinch.setScaleFactor(self.__zoom() / 100)
else:
self.__doZoom(int(pinch.scaleFactor() * 100))
evt.accept()
###########################################################################
## Private menu handling methods below.
###########################################################################
def __adjustScrollBar(self, scrollBar, factor):
"""
Private method to adjust a scrollbar by a certain factor.
@param scrollBar reference to the scrollbar object (QScrollBar)
@param factor factor to adjust by (float)
"""
scrollBar.setValue(
int(factor * scrollBar.value() +
((factor - 1) * scrollBar.pageStep() / 2)))
def __levelForZoom(self, zoom):
"""
Private method determining the zoom level index given a zoom factor.
@param zoom zoom factor (integer)
@return index of zoom factor (integer)
"""
try:
index = SvgDiagram.ZoomLevels.index(zoom)
except ValueError:
for index in range(len(SvgDiagram.ZoomLevels)):
if zoom <= SvgDiagram.ZoomLevels[index]:
break
return index
def __doZoom(self, value):
"""
Private method to set the zoom value in percent.
@param value zoom value in percent (integer)
"""
oldValue = self.__zoom()
if value != oldValue:
self.svgWidget.resize(value / 100 * self.svgWidget.sizeHint())
factor = value / oldValue
self.__adjustScrollBar(self.svgView.horizontalScrollBar(), factor)
self.__adjustScrollBar(self.svgView.verticalScrollBar(), factor)
self.__zoomWidget.setValue(value)
def __zoomIn(self):
"""
Private method to zoom into the SVG.
"""
index = self.__levelForZoom(self.__zoom())
if index < len(SvgDiagram.ZoomLevels) - 1:
self.__doZoom(SvgDiagram.ZoomLevels[index + 1])
def __zoomOut(self):
"""
Private method to zoom out of the SVG.
"""
index = self.__levelForZoom(self.__zoom())
if index > 0:
self.__doZoom(SvgDiagram.ZoomLevels[index - 1])
def __zoomReset(self):
"""
Private method to reset the zoom value.
"""
self.__doZoom(SvgDiagram.ZoomLevels[SvgDiagram.ZoomLevelDefault])
def __zoom(self):
"""
Private method to get the current zoom factor in percent.
@return current zoom factor in percent (integer)
"""
return int(self.svgWidget.width() /
self.svgWidget.sizeHint().width() * 100.0)
def __printDiagram(self):
"""
Private slot called to print the diagram.
"""
printer = QPrinter(mode=QPrinter.ScreenResolution)
printer.setFullPage(True)
if Preferences.getPrinter("ColorMode"):
printer.setColorMode(QPrinter.Color)
else:
printer.setColorMode(QPrinter.GrayScale)
if Preferences.getPrinter("FirstPageFirst"):
printer.setPageOrder(QPrinter.FirstPageFirst)
else:
printer.setPageOrder(QPrinter.LastPageFirst)
printerName = Preferences.getPrinter("PrinterName")
if printerName:
printer.setPrinterName(printerName)
printDialog = QPrintDialog(printer, self)
if printDialog.exec_():
self.__print(printer)
def __printPreviewDiagram(self):
"""
Private slot called to show a print preview of the diagram.
"""
from PyQt5.QtPrintSupport import QPrintPreviewDialog
printer = QPrinter(mode=QPrinter.ScreenResolution)
printer.setFullPage(True)
if Preferences.getPrinter("ColorMode"):
printer.setColorMode(QPrinter.Color)
else:
printer.setColorMode(QPrinter.GrayScale)
if Preferences.getPrinter("FirstPageFirst"):
printer.setPageOrder(QPrinter.FirstPageFirst)
else:
printer.setPageOrder(QPrinter.LastPageFirst)
printer.setPageMargins(
Preferences.getPrinter("LeftMargin") * 10,
Preferences.getPrinter("TopMargin") * 10,
Preferences.getPrinter("RightMargin") * 10,
Preferences.getPrinter("BottomMargin") * 10,
QPrinter.Millimeter
)
printerName = Preferences.getPrinter("PrinterName")
if printerName:
printer.setPrinterName(printerName)
preview = QPrintPreviewDialog(printer, self)
preview.paintRequested[QPrinter].connect(self.__print)
preview.exec_()
def __print(self, printer):
"""
Private slot to the actual printing.
@param printer reference to the printer object (QPrinter)
"""
painter = QPainter()
painter.begin(printer)
# calculate margin and width of printout
font = QFont("times", 10)
painter.setFont(font)
fm = painter.fontMetrics()
fontHeight = fm.lineSpacing()
marginX = printer.pageRect().x() - printer.paperRect().x()
marginX = Preferences.getPrinter("LeftMargin") * \
int(printer.resolution() / 2.54) - marginX
marginY = printer.pageRect().y() - printer.paperRect().y()
marginY = Preferences.getPrinter("TopMargin") * \
int(printer.resolution() / 2.54) - marginY
width = printer.width() - marginX - \
Preferences.getPrinter("RightMargin") * \
int(printer.resolution() / 2.54)
height = printer.height() - fontHeight - 4 - marginY - \
Preferences.getPrinter("BottomMargin") * \
int(printer.resolution() / 2.54)
# write a foot note
s = self.tr("Diagram: {0}").format(self.getDiagramName())
tc = QColor(50, 50, 50)
painter.setPen(tc)
painter.drawRect(marginX, marginY, width, height)
painter.drawLine(marginX, marginY + height + 2,
marginX + width, marginY + height + 2)
painter.setFont(font)
painter.drawText(marginX, marginY + height + 4, width,
fontHeight, Qt.AlignRight, s)
# render the diagram
painter.setViewport(marginX, marginY, width, height)
self.svgWidget.renderer().render(painter)
painter.end()
class SuggestRow(QPushButton):
def __init__(self, parent, command_dict):
QWidget.__init__(self, parent)
# gets the current theme
self.active_theme = parent.active_theme
# gets the font
self.custom_font = parent.custom_font
# setting height the row
height, width = [parent.width(), 114]
self.resize(height, width)
# makes command dictionary a class variable
self.command_dict = command_dict # Stores information about the command the row will hold
# widget creation
self.icon = None # This can either be an svg or jpg file
icon_path = command_dict["icon"] # gets the icon path
if "svg" in icon_path:
self.icon = QSvgWidget(self)
self.icon.load(icon_path)
else:
pixmap = QPixmap(icon_path)
icon = QLabel(self)
icon.setPixmap(pixmap)
self.icon = icon
self.title_lbl = QLabel(command_dict["title"], self)
self.description_lbl = QLabel(command_dict["description"], self)
self.set_style()
def set_style(self):
# TODO: Add support for theming for icon and layout scalability components
# set style and location of icon
if "svg" in self.command_dict[
"icon"]: # different location and sizes depending on icon type
self.icon.move(18, 18)
self.icon.resize(20, 20)
self.icon.setStyleSheet("background-color: rgba(0,0,0,0%);")
else:
self.icon.move(8, 8)
self.icon.resize(40, 40)
self.icon.setAlignment(Qt.AlignCenter)
self.icon.setScaledContents(True)
# set style and location of title
self.title_lbl.move(56, 9)
self.title_lbl.setStyleSheet(
f"font-size: 20px; color: {self.active_theme['text']}; background-color: rgba(0,0,0,0%);"
)
self.title_lbl.setFont(self.custom_font)
# set style and location of description
self.description_lbl.resize(479, 15)
self.description_lbl.move(56, 33)
self.description_lbl.setStyleSheet(
f"font-size: 13px; color: {self.active_theme['text']}; background-color: rgba(0,0,0,0%);"
)
self.description_lbl.setFont(self.custom_font)
# style for widget
self.setStyleSheet('''
QPushButton {
border: none;
}
QPushButton:hover {
background-color: #251e1e;
}
QPushButton:hover:focus {
background-color: #322828;
}
QPushButton:focus {
background-color: #3f3232;
outline: 0px
}
''')
class SuggestRow(QPushButton):
def __init__(self, parent, suggestion: Suggestion):
QWidget.__init__(self, parent)
# defines whether the command has associated options
self.has_options = True if hasattr(suggestion,
"option_suggestions") else False
# gets the current theme
self.active_theme = parent.active_theme
# gets the font
self.custom_font = parent.custom_font
# setting height the row
width, height = [parent.width(), 57]
self.resize(width, height)
# makes command dictionary a class variable
self.suggestion = suggestion # Stores information about the command the row will hold
# widget creation
self.icon = None # This can either be an svg or jpg file
icon_path = self.suggestion.icon_name # gets the icon path
if "svg" in icon_path:
self.icon = QSvgWidget(self)
self.icon.load(icon_path)
else:
pixmap = QPixmap(icon_path)
icon = QLabel(self)
icon.setPixmap(pixmap)
self.icon = icon
self.title_lbl = QLabel(self.suggestion.title, self)
self.description_lbl = QLabel(self.suggestion.description, self)
self.option_icon = QSvgWidget(self)
self.option_icon.load(f"{ASSETS_DIR}svg{sep}ellipsis.svg")
self.set_style()
def set_style(self):
# TODO: Add support for theming for icon and layout scalability components
# set style and location of icon
if "svg" in self.suggestion.icon_name: # different location and sizes depending on icon type
self.icon.move(18, 18)
self.icon.resize(20, 20)
self.icon.setStyleSheet("background-color: rgba(0,0,0,0%);")
else:
self.icon.move(8, 8)
self.icon.resize(40, 40)
self.icon.setAlignment(Qt.AlignCenter)
self.icon.setScaledContents(True)
# set style for options icon
self.option_icon.move(490, 16)
self.option_icon.resize(25, 25)
self.option_icon.setStyleSheet("background-color: rgba(0,0,0,0%);")
self.option_icon.hide()
# set style and location of title
self.title_lbl.move(56, 9)
self.title_lbl.setStyleSheet(
f"font-size: 20px; color: {self.active_theme.foreground}; background-color: rgba(0,0,0,0%);"
)
self.title_lbl.setFont(self.custom_font)
# set style and location of description
self.description_lbl.resize(479, 15)
self.description_lbl.move(56, 33)
self.description_lbl.setStyleSheet(
f"font-size: 13px; color: {self.active_theme.foreground}; background-color: rgba(0,0,0,0%);"
)
self.description_lbl.setFont(self.custom_font)
# style for widget
self.setStyleSheet('''
QPushButton {
border: none;
}
QPushButton:hover {
background-color: #251e1e;
}
QPushButton:hover:focus {
background-color: #322828;
}
QPushButton:focus {
background-color: #3f3232;
outline: 0px
}
''')
def show_option_icon(self):
if self.has_options:
self.option_icon.show()
def hide_option_icon(self):
if self.has_options:
self.option_icon.hide()
class SvgDiagram(E5MainWindow):
"""
Class implementing a dialog showing a SVG graphic.
"""
ZoomLevels = [
1,
3,
5,
7,
9,
10,
20,
30,
50,
67,
80,
90,
100,
110,
120,
133,
150,
170,
200,
240,
300,
400,
500,
600,
700,
800,
900,
1000,
]
ZoomLevelDefault = 100
def __init__(self, svgFile, parent=None, name=None):
"""
Constructor
@param svgFile filename of a SVG graphics file to show (string)
@param parent parent widget of the view (QWidget)
@param name name of the view widget (string)
"""
super(SvgDiagram, self).__init__(parent)
if name:
self.setObjectName(name)
else:
self.setObjectName("SvgDiagram")
self.setWindowTitle(self.tr("SVG-Viewer"))
self.svgWidget = QSvgWidget()
self.svgWidget.setObjectName("svgWidget")
self.svgWidget.setBackgroundRole(QPalette.Base)
self.svgWidget.setSizePolicy(QSizePolicy.Ignored, QSizePolicy.Ignored)
self.svgView = QScrollArea()
self.svgView.setObjectName("svgView")
self.svgView.setBackgroundRole(QPalette.Dark)
self.svgView.setWidget(self.svgWidget)
self.setCentralWidget(self.svgView)
self.__zoomWidget = E5ZoomWidget(
UI.PixmapCache.getPixmap("zoomOut.png"),
UI.PixmapCache.getPixmap("zoomIn.png"),
UI.PixmapCache.getPixmap("zoomReset.png"), self)
self.statusBar().addPermanentWidget(self.__zoomWidget)
self.__zoomWidget.setMapping(SvgDiagram.ZoomLevels,
SvgDiagram.ZoomLevelDefault)
self.__zoomWidget.valueChanged.connect(self.__doZoom)
# polish up the dialog
self.resize(QSize(800, 600).expandedTo(self.minimumSizeHint()))
self.zoom = 1.0
self.svgFile = svgFile
self.svgWidget.load(self.svgFile)
self.svgWidget.resize(self.svgWidget.renderer().defaultSize())
self.__initActions()
self.__initContextMenu()
self.__initToolBars()
self.grabGesture(Qt.PinchGesture)
def __initActions(self):
"""
Private method to initialize the view actions.
"""
self.closeAct = \
QAction(UI.PixmapCache.getIcon("close.png"),
self.tr("Close"), self)
self.closeAct.triggered.connect(self.close)
self.printAct = \
QAction(UI.PixmapCache.getIcon("print.png"),
self.tr("Print"), self)
self.printAct.triggered.connect(self.__printDiagram)
self.printPreviewAct = \
QAction(UI.PixmapCache.getIcon("printPreview.png"),
self.tr("Print Preview"), self)
self.printPreviewAct.triggered.connect(self.__printPreviewDiagram)
def __initContextMenu(self):
"""
Private method to initialize the context menu.
"""
self.__menu = QMenu(self)
self.__menu.addAction(self.closeAct)
self.__menu.addSeparator()
self.__menu.addAction(self.printPreviewAct)
self.__menu.addAction(self.printAct)
self.setContextMenuPolicy(Qt.CustomContextMenu)
self.customContextMenuRequested.connect(self.__showContextMenu)
def __showContextMenu(self, coord):
"""
Private slot to show the context menu of the listview.
@param coord the position of the mouse pointer (QPoint)
"""
self.__menu.popup(self.mapToGlobal(coord))
def __initToolBars(self):
"""
Private method to populate the toolbars with our actions.
"""
self.windowToolBar = QToolBar(self.tr("Window"), self)
self.windowToolBar.setIconSize(UI.Config.ToolBarIconSize)
self.windowToolBar.addAction(self.closeAct)
self.graphicsToolBar = QToolBar(self.tr("Graphics"), self)
self.graphicsToolBar.setIconSize(UI.Config.ToolBarIconSize)
self.graphicsToolBar.addAction(self.printPreviewAct)
self.graphicsToolBar.addAction(self.printAct)
self.addToolBar(Qt.TopToolBarArea, self.windowToolBar)
self.addToolBar(Qt.TopToolBarArea, self.graphicsToolBar)
def getDiagramName(self):
"""
Public method to retrieve a name for the diagram.
@return name for the diagram
"""
return self.svgFile
def wheelEvent(self, evt):
"""
Protected method to handle wheel events.
@param evt reference to the wheel event (QWheelEvent)
"""
if evt.modifiers() & Qt.ControlModifier:
if qVersion() >= "5.0.0":
delta = evt.angleDelta().y()
else:
delta = evt.delta()
if delta < 0:
self.__zoomOut()
else:
self.__zoomIn()
evt.accept()
return
super(SvgDiagram, self).wheelEvent(evt)
def event(self, evt):
"""
Public method handling events.
@param evt reference to the event (QEvent)
@return flag indicating, if the event was handled (boolean)
"""
if evt.type() == QEvent.Gesture:
self.gestureEvent(evt)
return True
return super(SvgDiagram, self).event(evt)
def gestureEvent(self, evt):
"""
Protected method handling gesture events.
@param evt reference to the gesture event (QGestureEvent
"""
pinch = evt.gesture(Qt.PinchGesture)
if pinch:
if pinch.state() == Qt.GestureStarted:
pinch.setScaleFactor(self.__zoom() / 100)
else:
self.__doZoom(int(pinch.scaleFactor() * 100))
evt.accept()
###########################################################################
## Private menu handling methods below.
###########################################################################
def __adjustScrollBar(self, scrollBar, factor):
"""
Private method to adjust a scrollbar by a certain factor.
@param scrollBar reference to the scrollbar object (QScrollBar)
@param factor factor to adjust by (float)
"""
scrollBar.setValue(
int(factor * scrollBar.value() +
((factor - 1) * scrollBar.pageStep() / 2)))
def __levelForZoom(self, zoom):
"""
Private method determining the zoom level index given a zoom factor.
@param zoom zoom factor (integer)
@return index of zoom factor (integer)
"""
try:
index = SvgDiagram.ZoomLevels.index(zoom)
except ValueError:
for index in range(len(SvgDiagram.ZoomLevels)):
if zoom <= SvgDiagram.ZoomLevels[index]:
break
return index
def __doZoom(self, value):
"""
Private method to set the zoom value in percent.
@param value zoom value in percent (integer)
"""
oldValue = self.__zoom()
if value != oldValue:
self.svgWidget.resize(value / 100 * self.svgWidget.sizeHint())
factor = value / oldValue
self.__adjustScrollBar(self.svgView.horizontalScrollBar(), factor)
self.__adjustScrollBar(self.svgView.verticalScrollBar(), factor)
self.__zoomWidget.setValue(value)
def __zoomIn(self):
"""
Private method to zoom into the SVG.
"""
index = self.__levelForZoom(self.__zoom())
if index < len(SvgDiagram.ZoomLevels) - 1:
self.__doZoom(SvgDiagram.ZoomLevels[index + 1])
def __zoomOut(self):
"""
Private method to zoom out of the SVG.
"""
index = self.__levelForZoom(self.__zoom())
if index > 0:
self.__doZoom(SvgDiagram.ZoomLevels[index - 1])
def __zoomReset(self):
"""
Private method to reset the zoom value.
"""
self.__doZoom(SvgDiagram.ZoomLevels[SvgDiagram.ZoomLevelDefault])
def __zoom(self):
"""
Private method to get the current zoom factor in percent.
@return current zoom factor in percent (integer)
"""
return int(self.svgWidget.width() / self.svgWidget.sizeHint().width() *
100.0)
def __printDiagram(self):
"""
Private slot called to print the diagram.
"""
printer = QPrinter(mode=QPrinter.ScreenResolution)
printer.setFullPage(True)
if Preferences.getPrinter("ColorMode"):
printer.setColorMode(QPrinter.Color)
else:
printer.setColorMode(QPrinter.GrayScale)
if Preferences.getPrinter("FirstPageFirst"):
printer.setPageOrder(QPrinter.FirstPageFirst)
else:
printer.setPageOrder(QPrinter.LastPageFirst)
printerName = Preferences.getPrinter("PrinterName")
if printerName:
printer.setPrinterName(printerName)
printDialog = QPrintDialog(printer, self)
if printDialog.exec_():
self.__print(printer)
def __printPreviewDiagram(self):
"""
Private slot called to show a print preview of the diagram.
"""
from PyQt5.QtPrintSupport import QPrintPreviewDialog
printer = QPrinter(mode=QPrinter.ScreenResolution)
printer.setFullPage(True)
if Preferences.getPrinter("ColorMode"):
printer.setColorMode(QPrinter.Color)
else:
printer.setColorMode(QPrinter.GrayScale)
if Preferences.getPrinter("FirstPageFirst"):
printer.setPageOrder(QPrinter.FirstPageFirst)
else:
printer.setPageOrder(QPrinter.LastPageFirst)
printer.setPageMargins(
Preferences.getPrinter("LeftMargin") * 10,
Preferences.getPrinter("TopMargin") * 10,
Preferences.getPrinter("RightMargin") * 10,
Preferences.getPrinter("BottomMargin") * 10, QPrinter.Millimeter)
printerName = Preferences.getPrinter("PrinterName")
if printerName:
printer.setPrinterName(printerName)
preview = QPrintPreviewDialog(printer, self)
preview.paintRequested[QPrinter].connect(self.__print)
preview.exec_()
def __print(self, printer):
"""
Private slot to the actual printing.
@param printer reference to the printer object (QPrinter)
"""
painter = QPainter()
painter.begin(printer)
# calculate margin and width of printout
font = QFont("times", 10)
painter.setFont(font)
fm = painter.fontMetrics()
fontHeight = fm.lineSpacing()
marginX = printer.pageRect().x() - printer.paperRect().x()
marginX = Preferences.getPrinter("LeftMargin") * \
int(printer.resolution() / 2.54) - marginX
marginY = printer.pageRect().y() - printer.paperRect().y()
marginY = Preferences.getPrinter("TopMargin") * \
int(printer.resolution() / 2.54) - marginY
width = printer.width() - marginX - \
Preferences.getPrinter("RightMargin") * \
int(printer.resolution() / 2.54)
height = printer.height() - fontHeight - 4 - marginY - \
Preferences.getPrinter("BottomMargin") * \
int(printer.resolution() / 2.54)
# write a foot note
s = self.tr("Diagram: {0}").format(self.getDiagramName())
tc = QColor(50, 50, 50)
painter.setPen(tc)
painter.drawRect(marginX, marginY, width, height)
painter.drawLine(marginX, marginY + height + 2, marginX + width,
marginY + height + 2)
painter.setFont(font)
painter.drawText(marginX, marginY + height + 4, width, fontHeight,
Qt.AlignRight, s)
# render the diagram
painter.setViewport(marginX, marginY, width, height)
self.svgWidget.renderer().render(painter)
painter.end()
