Mercurial Repositories > eric / file comparison
comparison: src/eric7/IconEditor/IconEditorPalette.py
src/eric7/IconEditor/IconEditorPalette.py
- branch
- eric7
- changeset 9209
- b99e7fd55fd3
- parent 8881
- 54e42bc2437a
- child 9221
- bf71ee032bb4
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| 9208:3fc8dfeb6ebe | 9209:b99e7fd55fd3 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 - 2022 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a palette widget for the icon editor. | |
| 8 """ | |
| 9 | |
| 10 from PyQt6.QtCore import pyqtSignal, Qt | |
| 11 from PyQt6.QtGui import QColor, QPainter, QPixmap | |
| 12 from PyQt6.QtWidgets import ( | |
| 13 QWidget, QBoxLayout, QLabel, QFrame, QPushButton, QSpinBox, QGroupBox, | |
| 14 QVBoxLayout, QRadioButton, QSpacerItem, QSizePolicy, QColorDialog | |
| 15 ) | |
| 16 | |
| 17 | |
| 18 class IconEditorPalette(QWidget): | |
| 19 """ | |
| 20 Class implementing a palette widget for the icon editor. | |
| 21 | |
| 22 @signal colorSelected(QColor) emitted after a new color has been selected | |
| 23 @signal compositingChanged(QPainter.CompositionMode) emitted to signal a | |
| 24 change of the compositing mode | |
| 25 """ | |
| 26 colorSelected = pyqtSignal(QColor) | |
| 27 compositingChanged = pyqtSignal(QPainter.CompositionMode) | |
| 28 | |
| 29 def __init__(self, parent=None): | |
| 30 """ | |
| 31 Constructor | |
| 32 | |
| 33 @param parent reference to the parent widget (QWidget) | |
| 34 """ | |
| 35 super().__init__(parent) | |
| 36 | |
| 37 direction = ( | |
| 38 QBoxLayout.Direction.LeftToRight | |
| 39 if self.layoutDirection == Qt.Orientation.Horizontal else | |
| 40 QBoxLayout.Direction.TopToBottom | |
| 41 ) | |
| 42 self.__layout = QBoxLayout(direction, self) | |
| 43 self.setLayout(self.__layout) | |
| 44 | |
| 45 self.__preview = QLabel(self) | |
| 46 self.__preview.setFrameStyle(QFrame.Shape.Panel | QFrame.Shadow.Sunken) | |
| 47 self.__preview.setFixedHeight(64) | |
| 48 self.__preview.setAlignment( | |
| 49 Qt.AlignmentFlag.AlignHCenter | Qt.AlignmentFlag.AlignVCenter) | |
| 50 self.__preview.setWhatsThis(self.tr( | |
| 51 """<b>Preview</b>""" | |
| 52 """<p>This is a 1:1 preview of the current icon.</p>""" | |
| 53 )) | |
| 54 self.__layout.addWidget(self.__preview) | |
| 55 | |
| 56 self.__color = QLabel(self) | |
| 57 self.__color.setFrameStyle(QFrame.Shape.Panel | QFrame.Shadow.Sunken) | |
| 58 self.__color.setFixedHeight(24) | |
| 59 self.__color.setAlignment( | |
| 60 Qt.AlignmentFlag.AlignHCenter | Qt.AlignmentFlag.AlignVCenter) | |
| 61 self.__color.setWhatsThis(self.tr( | |
| 62 """<b>Current Color</b>""" | |
| 63 """<p>This is the currently selected color used for drawing.</p>""" | |
| 64 )) | |
| 65 self.__layout.addWidget(self.__color) | |
| 66 | |
| 67 self.__colorTxt = QLabel(self) | |
| 68 self.__colorTxt.setAlignment( | |
| 69 Qt.AlignmentFlag.AlignHCenter | Qt.AlignmentFlag.AlignVCenter) | |
| 70 self.__colorTxt.setWhatsThis(self.tr( | |
| 71 """<b>Current Color Value</b>""" | |
| 72 """<p>This is the currently selected color value used for""" | |
| 73 """ drawing.</p>""" | |
| 74 )) | |
| 75 self.__layout.addWidget(self.__colorTxt) | |
| 76 | |
| 77 self.__colorButton = QPushButton(self.tr("Select Color"), self) | |
| 78 self.__colorButton.setWhatsThis(self.tr( | |
| 79 """<b>Select Color</b>""" | |
| 80 """<p>Select the current drawing color via a color selection""" | |
| 81 """ dialog.</p>""" | |
| 82 )) | |
| 83 self.__colorButton.clicked.connect(self.__selectColor) | |
| 84 self.__layout.addWidget(self.__colorButton) | |
| 85 | |
| 86 self.__colorAlpha = QSpinBox(self) | |
| 87 self.__colorAlpha.setRange(0, 255) | |
| 88 self.__colorAlpha.setWhatsThis(self.tr( | |
| 89 """<b>Select alpha channel value</b>""" | |
| 90 """<p>Select the value for the alpha channel of the current""" | |
| 91 """ color.</p>""" | |
| 92 )) | |
| 93 self.__layout.addWidget(self.__colorAlpha) | |
| 94 self.__colorAlpha.valueChanged[int].connect(self.__alphaChanged) | |
| 95 | |
| 96 self.__compositingGroup = QGroupBox(self.tr("Compositing"), self) | |
| 97 self.__compositingGroupLayout = QVBoxLayout(self.__compositingGroup) | |
| 98 self.__compositingGroup.setLayout(self.__compositingGroupLayout) | |
| 99 self.__sourceButton = QRadioButton(self.tr("Replace"), | |
| 100 self.__compositingGroup) | |
| 101 self.__sourceButton.setWhatsThis(self.tr( | |
| 102 """<b>Replace</b>""" | |
| 103 """<p>Replace the existing pixel with a new color.</p>""" | |
| 104 )) | |
| 105 self.__sourceButton.clicked[bool].connect(self.__compositingChanged) | |
| 106 self.__compositingGroupLayout.addWidget(self.__sourceButton) | |
| 107 self.__sourceOverButton = QRadioButton(self.tr("Blend"), | |
| 108 self.__compositingGroup) | |
| 109 self.__sourceOverButton.setWhatsThis(self.tr( | |
| 110 """<b>Blend</b>""" | |
| 111 """<p>Blend the new color over the existing pixel.</p>""" | |
| 112 )) | |
| 113 self.__sourceOverButton.setChecked(True) | |
| 114 self.__sourceOverButton.clicked[bool].connect( | |
| 115 self.__compositingChanged) | |
| 116 self.__compositingGroupLayout.addWidget(self.__sourceOverButton) | |
| 117 self.__layout.addWidget(self.__compositingGroup) | |
| 118 | |
| 119 spacer = QSpacerItem( | |
| 120 10, 10, QSizePolicy.Policy.Minimum, QSizePolicy.Policy.Expanding) | |
| 121 self.__layout.addItem(spacer) | |
| 122 | |
| 123 def previewChanged(self, pixmap): | |
| 124 """ | |
| 125 Public slot to update the preview. | |
| 126 | |
| 127 @param pixmap new preview pixmap (QPixmap) | |
| 128 """ | |
| 129 self.__preview.setPixmap(pixmap) | |
| 130 | |
| 131 def colorChanged(self, color): | |
| 132 """ | |
| 133 Public slot to update the color preview. | |
| 134 | |
| 135 @param color new color (QColor) | |
| 136 """ | |
| 137 self.__currentColor = color | |
| 138 self.__currentAlpha = color.alpha() | |
| 139 | |
| 140 pm = QPixmap(90, 18) | |
| 141 pm.fill(color) | |
| 142 self.__color.setPixmap(pm) | |
| 143 | |
| 144 self.__colorTxt.setText( | |
| 145 "{0:d}, {1:d}, {2:d}, {3:d}".format( | |
| 146 color.red(), color.green(), color.blue(), color.alpha())) | |
| 147 | |
| 148 self.__colorAlpha.setValue(self.__currentAlpha) | |
| 149 | |
| 150 def __selectColor(self): | |
| 151 """ | |
| 152 Private slot to select a new drawing color. | |
| 153 """ | |
| 154 col = QColorDialog.getColor(self.__currentColor) | |
| 155 col.setAlpha(self.__currentAlpha) | |
| 156 | |
| 157 if col.isValid(): | |
| 158 self.colorSelected.emit(col) | |
| 159 | |
| 160 def __alphaChanged(self, val): | |
| 161 """ | |
| 162 Private slot to track changes of the alpha channel. | |
| 163 | |
| 164 @param val value of the alpha channel | |
| 165 """ | |
| 166 if val != self.__currentAlpha: | |
| 167 col = QColor(self.__currentColor) | |
| 168 col.setAlpha(val) | |
| 169 self.colorSelected.emit(col) | |
| 170 | |
| 171 def setCompositingMode(self, mode): | |
| 172 """ | |
| 173 Public method to set the compositing mode. | |
| 174 | |
| 175 @param mode compositing mode to set (QPainter.CompositionMode) | |
| 176 """ | |
| 177 if mode == QPainter.CompositionMode.CompositionMode_Source: | |
| 178 self.__sourceButton.setChecked(True) | |
| 179 elif mode == QPainter.CompositionMode.CompositionMode_SourceOver: | |
| 180 self.__sourceOverButton.setChecked(True) | |
| 181 | |
| 182 def __compositingChanged(self, on): | |
| 183 """ | |
| 184 Private slot to handle a change of the compositing mode. | |
| 185 | |
| 186 @param on flag indicating the checked state of the compositing button | |
| 187 (boolean) | |
| 188 """ | |
| 189 if on: | |
| 190 if self.__sourceButton.isChecked(): | |
| 191 self.compositingChanged.emit( | |
| 192 QPainter.CompositionMode.CompositionMode_Source) | |
| 193 elif self.__sourceOverButton.isChecked(): | |
| 194 self.compositingChanged.emit( | |
| 195 QPainter.CompositionMode.CompositionMode_SourceOver) |
