Mercurial Repositories > eric / file comparison
comparison: Snapshot/SnapWidget.py
Snapshot/SnapWidget.py
- changeset 1770
- c17e67e69ef5
- child 1772
- f325dfdc8f6b
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| 1768:8a04ce23e083 | 1770:c17e67e69ef5 |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2012 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing the snapshot widget. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtCore import pyqtSlot, QFile, QFileInfo | |
| 11 from PyQt4.QtGui import QWidget, QImageWriter, QApplication | |
| 12 | |
| 13 from E5Gui import E5FileDialog, E5MessageBox | |
| 14 | |
| 15 from .Ui_SnapWidget import Ui_SnapWidget | |
| 16 | |
| 17 from .SnapshotRegionGrabber import SnapshotRegionGrabber | |
| 18 | |
| 19 import UI.PixmapCache | |
| 20 import Preferences | |
| 21 | |
| 22 | |
| 23 class SnapWidget(QWidget, Ui_SnapWidget): | |
| 24 """ | |
| 25 Class implementing the snapshot widget. | |
| 26 """ | |
| 27 def __init__(self, parent=None): | |
| 28 """ | |
| 29 Constructor | |
| 30 | |
| 31 @param parent reference to the parent widget (QWidget) | |
| 32 """ | |
| 33 super().__init__(parent) | |
| 34 self.setupUi(self) | |
| 35 | |
| 36 self.saveButton.setIcon(UI.PixmapCache.getIcon("fileSaveAs.png")) | |
| 37 self.takeButton.setIcon(UI.PixmapCache.getIcon("cameraPhoto.png")) | |
| 38 self.copyButton.setIcon(UI.PixmapCache.getIcon("editCopy.png")) | |
| 39 self.setWindowIcon(UI.PixmapCache.getIcon("ericSnap.png")) | |
| 40 | |
| 41 self.modeCombo.addItem(self.trUtf8("Fullscreen"), | |
| 42 SnapshotRegionGrabber.ModeFullscreen) | |
| 43 self.modeCombo.addItem(self.trUtf8("Rectangular Selection"), | |
| 44 SnapshotRegionGrabber.ModeRectangle) | |
| 45 mode = int(Preferences.Prefs.settings.value("Snapshot/Mode", 0)) | |
| 46 index = self.modeCombo.findData(mode) | |
| 47 self.modeCombo.setCurrentIndex(index) | |
| 48 | |
| 49 self.delaySpin.setValue(int(Preferences.Prefs.settings.value( | |
| 50 "Snapshot/Delay", 0))) | |
| 51 | |
| 52 self.__grabber = None | |
| 53 | |
| 54 self.__initFileFilters() | |
| 55 | |
| 56 def __initFileFilters(self): | |
| 57 """ | |
| 58 Private method to define the supported image file filters. | |
| 59 """ | |
| 60 filters = { | |
| 61 'bmp': self.trUtf8("Windows Bitmap File (*.bmp)"), | |
| 62 'gif': self.trUtf8("Graphic Interchange Format File (*.gif)"), | |
| 63 'ico': self.trUtf8("Windows Icon File (*.ico)"), | |
| 64 'jpg': self.trUtf8("JPEG File (*.jpg)"), | |
| 65 'mng': self.trUtf8("Multiple-Image Network Graphics File (*.mng)"), | |
| 66 'pbm': self.trUtf8("Portable Bitmap File (*.pbm)"), | |
| 67 'pcx': self.trUtf8("Paintbrush Bitmap File (*.pcx)"), | |
| 68 'pgm': self.trUtf8("Portable Graymap File (*.pgm)"), | |
| 69 'png': self.trUtf8("Portable Network Graphics File (*.png)"), | |
| 70 'ppm': self.trUtf8("Portable Pixmap File (*.ppm)"), | |
| 71 'sgi': self.trUtf8("Silicon Graphics Image File (*.sgi)"), | |
| 72 'svg': self.trUtf8("Scalable Vector Graphics File (*.svg)"), | |
| 73 'tga': self.trUtf8("Targa Graphic File (*.tga)"), | |
| 74 'tif': self.trUtf8("TIFF File (*.tif)"), | |
| 75 'xbm': self.trUtf8("X11 Bitmap File (*.xbm)"), | |
| 76 'xpm': self.trUtf8("X11 Pixmap File (*.xpm)"), | |
| 77 } | |
| 78 | |
| 79 outputFormats = [] | |
| 80 writeFormats = QImageWriter.supportedImageFormats() | |
| 81 for writeFormat in writeFormats: | |
| 82 try: | |
| 83 outputFormats.append(filters[bytes(writeFormat).decode()]) | |
| 84 except KeyError: | |
| 85 pass | |
| 86 outputFormats.sort() | |
| 87 self.__outputFilter = ';;'.join(outputFormats) | |
| 88 | |
| 89 self.__defaultFilter = filters['png'] | |
| 90 | |
| 91 @pyqtSlot(bool) | |
| 92 def on_saveButton_clicked(self, checked): | |
| 93 """ | |
| 94 Private slot to save the snapshot. | |
| 95 """ | |
| 96 fileName, selectedFilter = E5FileDialog.getSaveFileNameAndFilter( | |
| 97 self, | |
| 98 self.trUtf8("Save Snapshot"), | |
| 99 "", | |
| 100 self.__outputFilter, | |
| 101 self.__defaultFilter, | |
| 102 E5FileDialog.Options(E5FileDialog.DontConfirmOverwrite)) | |
| 103 if not fileName: | |
| 104 return | |
| 105 | |
| 106 ext = QFileInfo(fileName).suffix() | |
| 107 if not ext: | |
| 108 ex = selectedFilter.split("(*")[1].split(")")[0] | |
| 109 if ex: | |
| 110 fileName += ex | |
| 111 if QFileInfo(fileName).exists(): | |
| 112 res = E5MessageBox.yesNo(self, | |
| 113 self.trUtf8("Save Snapshot"), | |
| 114 self.trUtf8("<p>The file <b>{0}</b> already exists." | |
| 115 " Overwrite it?</p>").format(fileName), | |
| 116 icon=E5MessageBox.Warning) | |
| 117 if not res: | |
| 118 return | |
| 119 | |
| 120 file = QFile(fileName) | |
| 121 if not file.open(QFile.WriteOnly): | |
| 122 E5MessageBox.warning(self, self.trUtf8("Save Snapshot"), | |
| 123 self.trUtf8("Cannot write file '{0}:\n{1}.")\ | |
| 124 .format(fileName, file.errorString())) | |
| 125 return | |
| 126 | |
| 127 res = self.preview.pixmap().save(file) | |
| 128 file.close() | |
| 129 | |
| 130 if not res: | |
| 131 E5MessageBox.warning(self, self.trUtf8("Save Snapshot"), | |
| 132 self.trUtf8("Cannot write file '{0}:\n{1}.")\ | |
| 133 .format(fileName, file.errorString())) | |
| 134 | |
| 135 @pyqtSlot(bool) | |
| 136 def on_takeButton_clicked(self, checked): | |
| 137 """ | |
| 138 Private slot to take a snapshot. | |
| 139 """ | |
| 140 mode = self.modeCombo.itemData(self.modeCombo.currentIndex()) | |
| 141 delay = self.delaySpin.value() | |
| 142 | |
| 143 Preferences.Prefs.settings.setValue("Snapshot/Delay", delay) | |
| 144 Preferences.Prefs.settings.setValue("Snapshot/Mode", mode) | |
| 145 | |
| 146 self.hide() | |
| 147 | |
| 148 self.__grabber = SnapshotRegionGrabber(mode, delay) | |
| 149 self.__grabber.grabbed.connect(self.__captured) | |
| 150 | |
| 151 @pyqtSlot() | |
| 152 def on_copyButton_clicked(self): | |
| 153 """ | |
| 154 Private slot to copy the snapshot to the clipboard. | |
| 155 """ | |
| 156 QApplication.clipboard().setPixmap(self.preview.pixmap()) | |
| 157 | |
| 158 def __captured(self, pixmap): | |
| 159 """ | |
| 160 Private slot to show a preview of the snapshot. | |
| 161 | |
| 162 @param pixmap pixmap of the snapshot (QPixmap) | |
| 163 """ | |
| 164 self.__grabber.close() | |
| 165 self.preview.setPixmap(pixmap) | |
| 166 | |
| 167 self.__grabber = None | |
| 168 | |
| 169 self.saveButton.setEnabled(True) | |
| 170 self.copyButton.setEnabled(True) | |
| 171 self.show() |
