Mercurial Repositories > eric / file comparison
comparison: E5Gui/E5LineEditButton.py
E5Gui/E5LineEditButton.py
- changeset 643
- 719db11dd4df
- child 791
- 9ec2ac20e54e
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| 641:b06d4df23797 | 643:719db11dd4df |
|---|---|
| 1 # -*- coding: utf-8 -*- | |
| 2 | |
| 3 # Copyright (c) 2010 Detlev Offenbach <detlev@die-offenbachs.de> | |
| 4 # | |
| 5 | |
| 6 """ | |
| 7 Module implementing a button class to be used with E5LineEdit. | |
| 8 """ | |
| 9 | |
| 10 from PyQt4.QtCore import Qt, QPoint, QPointF | |
| 11 from PyQt4.QtGui import QAbstractButton, QPainter, QPainterPath | |
| 12 | |
| 13 class E5LineEditButton(QAbstractButton): | |
| 14 """ | |
| 15 Class implementing a button to be used with E5LineEdit. | |
| 16 """ | |
| 17 def __init__(self, parent = None): | |
| 18 """ | |
| 19 Constructor | |
| 20 | |
| 21 @param parent reference to the parent widget (QWidget) | |
| 22 """ | |
| 23 QAbstractButton.__init__(self, parent) | |
| 24 | |
| 25 self.__menu = None | |
| 26 self.__image = None | |
| 27 | |
| 28 self.setFocusPolicy(Qt.NoFocus) | |
| 29 self.setCursor(Qt.ArrowCursor) | |
| 30 self.setMinimumSize(16, 16) | |
| 31 | |
| 32 self.clicked[()].connect(self.__clicked) | |
| 33 | |
| 34 def setMenu(self, menu): | |
| 35 """ | |
| 36 Public method to set the button menu. | |
| 37 | |
| 38 @param menu reference to the menu (QMenu) | |
| 39 """ | |
| 40 self.__menu = menu | |
| 41 self.update() | |
| 42 | |
| 43 def menu(self): | |
| 44 """ | |
| 45 Public method to get a reference to the menu. | |
| 46 | |
| 47 @return reference to the associated menu (QMenu) | |
| 48 """ | |
| 49 return self.__menu | |
| 50 | |
| 51 def setIcon(self, icon): | |
| 52 """ | |
| 53 Public method to set the button icon. | |
| 54 | |
| 55 @param icon icon to be set (QIcon) | |
| 56 """ | |
| 57 if icon.isNull(): | |
| 58 self.__image = None | |
| 59 else: | |
| 60 self.__image = icon.pixmap(16, 16).toImage() | |
| 61 QAbstractButton.setIcon(self, icon) | |
| 62 | |
| 63 def __clicked(self): | |
| 64 """ | |
| 65 Private slot to handle a button click. | |
| 66 """ | |
| 67 if self.__menu: | |
| 68 pos = self.mapToGlobal(QPoint(0, self.height())) | |
| 69 self.__menu.exec_(pos) | |
| 70 | |
| 71 def paintEvent(self, evt): | |
| 72 """ | |
| 73 Protected method handling a paint event. | |
| 74 | |
| 75 @param evt reference to the paint event (QPaintEvent) | |
| 76 """ | |
| 77 painter = QPainter(self) | |
| 78 | |
| 79 if self.__image is not None and not self.__image.isNull(): | |
| 80 x = (self.width() - self.__image.width()) // 2 - 1 | |
| 81 y = (self.height() - self.__image.height()) // 2 - 1 | |
| 82 painter.drawImage(x, y, self.__image) | |
| 83 | |
| 84 if self.__menu is not None: | |
| 85 triagPath = QPainterPath() | |
| 86 startPos = QPointF(self.width() - 5, self.height() - 3) | |
| 87 triagPath.moveTo(startPos) | |
| 88 triagPath.lineTo(startPos.x() + 4, startPos.y()) | |
| 89 triagPath.lineTo(startPos.x() + 2, startPos.y() + 2) | |
| 90 triagPath.closeSubpath() | |
| 91 painter.setPen(Qt.black) | |
| 92 painter.setBrush(Qt.black) | |
| 93 painter.setRenderHint(QPainter.Antialiasing, False) | |
| 94 painter.drawPath(triagPath) |
