Mercurial Repositories > eric / file comparison
comparison: IconEditor/IconEditorPalette.py
IconEditor/IconEditorPalette.py
- changeset 0
- de9c2efb9d02
- child 13
- 1af94a91f439
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| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2009 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a palette widget for the icon editor. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtCore import * | |
| 11 from PyQt4.QtGui import * | |
| 12 | |
| 13 class IconEditorPalette(QWidget): | |
| 14 """ | |
| 15 Class implementing a palette widget for the icon editor. | |
| 16 | |
| 17 @signal colorSelected(QColor) emitted after a new color has been selected | |
| 18 """ | |
| 19 def __init__(self, parent = None): | |
| 20 """ | |
| 21 Constructor | |
| 22 | |
| 23 @param parent reference to the parent widget (QWidget) | |
| 24 """ | |
| 25 QWidget.__init__(self, parent) | |
| 26 | |
| 27 if self.layoutDirection == Qt.Horizontal: | |
| 28 direction = QBoxLayout.LeftToRight | |
| 29 else: | |
| 30 direction = QBoxLayout.TopToBottom | |
| 31 self.__layout = QBoxLayout(direction, self) | |
| 32 self.setLayout(self.__layout) | |
| 33 | |
| 34 self.__preview = QLabel(self) | |
| 35 self.__preview.setFrameStyle(QFrame.Panel | QFrame.Sunken) | |
| 36 self.__preview.setFixedHeight(64) | |
| 37 self.__preview.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter) | |
| 38 self.__preview.setWhatsThis(self.trUtf8( | |
| 39 """<b>Preview</b>""" | |
| 40 """<p>This is a 1:1 preview of the current icon.</p>""" | |
| 41 )) | |
| 42 self.__layout.addWidget(self.__preview) | |
| 43 | |
| 44 self.__color = QLabel(self) | |
| 45 self.__color.setFrameStyle(QFrame.Panel | QFrame.Sunken) | |
| 46 self.__color.setFixedHeight(24) | |
| 47 self.__color.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter) | |
| 48 self.__color.setWhatsThis(self.trUtf8( | |
| 49 """<b>Current Color</b>""" | |
| 50 """<p>This is the currently selected color used for drawing.</p>""" | |
| 51 )) | |
| 52 self.__layout.addWidget(self.__color) | |
| 53 | |
| 54 self.__colorTxt = QLabel(self) | |
| 55 self.__colorTxt.setAlignment(Qt.AlignHCenter | Qt.AlignVCenter) | |
| 56 self.__colorTxt.setWhatsThis(self.trUtf8( | |
| 57 """<b>Current Color Value</b>""" | |
| 58 """<p>This is the currently selected color value used for drawing.</p>""" | |
| 59 )) | |
| 60 self.__layout.addWidget(self.__colorTxt) | |
| 61 | |
| 62 self.__colorButton = QPushButton(self.trUtf8("Select Color"), self) | |
| 63 self.__colorButton.setWhatsThis(self.trUtf8( | |
| 64 """<b>Select Color</b>""" | |
| 65 """<p>Select the current drawing color via a color selection dialog.</p>""" | |
| 66 )) | |
| 67 self.connect(self.__colorButton, SIGNAL("clicked()"), self.__selectColor) | |
| 68 self.__layout.addWidget(self.__colorButton) | |
| 69 | |
| 70 self.__colorAlpha = QSpinBox(self) | |
| 71 self.__colorAlpha.setRange(0, 255) | |
| 72 self.__colorAlpha.setWhatsThis(self.trUtf8( | |
| 73 """<b>Select alpha channel value</b>""" | |
| 74 """<p>Select the value for the alpha channel of the current color.</p>""" | |
| 75 )) | |
| 76 self.__layout.addWidget(self.__colorAlpha) | |
| 77 self.connect(self.__colorAlpha, SIGNAL("valueChanged(int)"), | |
| 78 self.__alphaChanged) | |
| 79 | |
| 80 spacer = QSpacerItem(10, 10, QSizePolicy.Minimum, QSizePolicy.Expanding) | |
| 81 self.__layout.addItem(spacer) | |
| 82 | |
| 83 def previewChanged(self, pixmap): | |
| 84 """ | |
| 85 Public slot to update the preview. | |
| 86 """ | |
| 87 self.__preview.setPixmap(pixmap) | |
| 88 | |
| 89 def colorChanged(self, color): | |
| 90 """ | |
| 91 Public slot to update the color preview. | |
| 92 """ | |
| 93 self.__currentColor = color | |
| 94 self.__currentAlpha = color.alpha() | |
| 95 | |
| 96 pm = QPixmap(90, 18) | |
| 97 pm.fill(color) | |
| 98 self.__color.setPixmap(pm) | |
| 99 | |
| 100 self.__colorTxt.setText( | |
| 101 "%d, %d, %d, %d" % (color.red(), color.green(), color.blue(), color.alpha())) | |
| 102 | |
| 103 self.__colorAlpha.setValue(self.__currentAlpha) | |
| 104 | |
| 105 def __selectColor(self): | |
| 106 """ | |
| 107 Private slot to select a new drawing color. | |
| 108 """ | |
| 109 col = QColorDialog.getColor(self.__currentColor) | |
| 110 col.setAlpha(self.__currentAlpha) | |
| 111 | |
| 112 if col.isValid(): | |
| 113 self.emit(SIGNAL("colorSelected(QColor)"), col) | |
| 114 | |
| 115 def __alphaChanged(self, val): | |
| 116 """ | |
| 117 Private slot to track changes of the alpha channel. | |
| 118 | |
| 119 @param val value of the alpha channel | |
| 120 """ | |
| 121 if val != self.__currentAlpha: | |
| 122 col = QColor(self.__currentColor) | |
| 123 col.setAlpha(val) | |
| 124 self.emit(SIGNAL("colorSelected(QColor)"), col) |
