1 files changed, 54 insertions, 0 deletions
diff --git a/examples/demos/documentviewer/pdfviewer/zoomselector.py b/examples/demos/documentviewer/pdfviewer/zoomselector.py
new file mode 100644
index 000000000..e5da5708f
--- /dev/null
+++ b/examples/demos/documentviewer/pdfviewer/zoomselector.py
@@ -0,0 +1,54 @@
+# Copyright (C) 2017 Klaralvdalens Datakonsult AB (KDAB).
+# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+from PySide6.QtWidgets import QComboBox
+from PySide6.QtCore import Signal, Slot
+from PySide6.QtPdfWidgets import QPdfView
+
+
+ZOOM_LEVELS = ["Fit Width", "Fit Page", "12%", "25%", "33%", "50%", "66%",
+               "75%", "100%", "125%", "150%", "200%", "400%"]
+
+
+class ZoomSelector(QComboBox):
+    zoomModeChanged = Signal(QPdfView.ZoomMode)
+    zoomFactorChanged = Signal(float)
+
+    def __init__(self, parent):
+        super().__init__(parent)
+        self.setEditable(True)
+
+        for z in ZOOM_LEVELS:
+            self.addItem(z)
+
+        self.currentTextChanged.connect(self.onCurrentTextChanged)
+        self.lineEdit().editingFinished.connect(self._editingFinished)
+
+    @Slot()
+    def _editingFinished(self):
+        self.onCurrentTextChanged(self.lineEdit().text())
+
+    @Slot(float)
+    def setZoomFactor(self, zoomFactor):
+        z = int(100 * zoomFactor)
+        self.setCurrentText(f"{z}%")
+
+    @Slot()
+    def reset(self):
+        self.setCurrentIndex(8)  # 100%
+
+    @Slot(str)
+    def onCurrentTextChanged(self, text):
+        if text == "Fit Width":
+            self.zoomModeChanged.emit(QPdfView.ZoomMode.FitToWidth)
+        elif text == "Fit Page":
+            self.zoomModeChanged.emit(QPdfView.ZoomMode.FitInView)
+        else:
+            factor = 1.0
+            withoutPercent = text.replace('%', '')
+            zoomLevel = int(withoutPercent)
+            if zoomLevel:
+                factor = zoomLevel / 100.0
+
+            self.zoomModeChanged.emit(QPdfView.ZoomMode.Custom)
+            self.zoomFactorChanged.emit(factor)