1 files changed, 140 insertions, 0 deletions
diff --git a/src/silx/gui/widgets/ElidedLabel.py b/src/silx/gui/widgets/ElidedLabel.py
new file mode 100644
index 0000000..7c6dfb5
--- /dev/null
+++ b/src/silx/gui/widgets/ElidedLabel.py
@@ -0,0 +1,140 @@
+# coding: utf-8
+# /*##########################################################################
+#
+# Copyright (c) 2004-2021 European Synchrotron Radiation Facility
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+# THE SOFTWARE.
+#
+# ###########################################################################*/
+"""Module contains an elidable label
+"""
+
+__license__ = "MIT"
+__date__ = "07/12/2018"
+
+from silx.gui import qt
+
+
+class ElidedLabel(qt.QLabel):
+    """QLabel with an edile property.
+
+    By default if the text is too big, it is elided on the right.
+
+    This mode can be changed with :func:`setElideMode`.
+
+    In case the text is elided, the full content is displayed as part of the
+    tool tip. This behavior can be disabled with :func:`setTextAsToolTip`.
+    """
+
+    def __init__(self, parent=None):
+        super(ElidedLabel, self).__init__(parent)
+        self.__text = ""
+        self.__toolTip = ""
+        self.__textAsToolTip = True
+        self.__textIsElided = False
+        self.__elideMode = qt.Qt.ElideRight
+        self.__updateMinimumSize()
+
+    def resizeEvent(self, event):
+        self.__updateText()
+        return qt.QLabel.resizeEvent(self, event)
+
+    def setFont(self, font):
+        qt.QLabel.setFont(self, font)
+        self.__updateMinimumSize()
+        self.__updateText()
+
+    def __updateMinimumSize(self):
+        metrics = self.fontMetrics()
+        if qt.BINDING in ('PySide2', 'PyQt5'):
+            width = metrics.width("...")
+        else:  # Qt6
+            width = metrics.horizontalAdvance("...")
+        self.setMinimumWidth(width)
+
+    def __updateText(self):
+        metrics = self.fontMetrics()
+        elidedText = metrics.elidedText(self.__text, self.__elideMode, self.width())
+        qt.QLabel.setText(self, elidedText)
+        wasElided = self.__textIsElided
+        self.__textIsElided = elidedText != self.__text
+        if self.__textIsElided or wasElided != self.__textIsElided:
+            self.__updateToolTip()
+
+    def __updateToolTip(self):
+        if self.__textIsElided and self.__textAsToolTip:
+            qt.QLabel.setToolTip(self, self.__text + "<br/>" + self.__toolTip)
+        else:
+            qt.QLabel.setToolTip(self, self.__toolTip)
+
+    # Properties
+
+    def setText(self, text):
+        self.__text = text
+        self.__updateText()
+
+    def getText(self):
+        return self.__text
+
+    text = qt.Property(str, getText, setText)
+
+    def setToolTip(self, toolTip):
+        self.__toolTip = toolTip
+        self.__updateToolTip()
+
+    def getToolTip(self):
+        return self.__toolTip
+
+    toolTip = qt.Property(str, getToolTip, setToolTip)
+
+    def setElideMode(self, elideMode):
+        """Set the elide mode.
+
+        :param qt.Qt.TextElideMode elidMode: Elide mode to use
+        """
+        self.__elideMode = elideMode
+        self.__updateText()
+
+    def getElideMode(self):
+        """Returns the used elide mode.
+
+        :rtype: qt.Qt.TextElideMode
+        """
+        return self.__elideMode
+
+    elideMode = qt.Property(qt.Qt.TextElideMode, getToolTip, setToolTip)
+
+    def setTextAsToolTip(self, enabled):
+        """Enable displaying text as part of the tooltip if it is elided.
+
+        :param bool enabled: Enable the behavior
+        """
+        if self.__textAsToolTip == enabled:
+            return
+        self.__textAsToolTip = enabled
+        self.__updateToolTip()
+
+    def getTextAsToolTip(self):
+        """True if an elided text is displayed as part of the tooltip.
+
+        :rtype: bool
+        """
+        return self.__textAsToolTip
+
+    textAsToolTip = qt.Property(bool, getTextAsToolTip, setTextAsToolTip)