Put back some existing behavior

* Original size can toggle between 100% and zoom-to-fit.
* Minimum window size just requires one dimension to be over the minimum.

src/mainwindow.cpp

@@ -576,21 +576,25 @@ void MainWindow::setWindowSize()
     const QSize hardLimitSize = currentScreen->availableSize() - windowFrameSize - extraWidgetsSize;
     const QSize screenSize = currentScreen->size();
     const QSize minWindowSize = (screenSize * minWindowResizedPercentage).boundedTo(hardLimitSize);
-    const QSize maxWindowSize = (screenSize * maxWindowResizedPercentage).boundedTo(hardLimitSize);
+    const QSize maxWindowSize = (screenSize * qMax(maxWindowResizedPercentage, minWindowResizedPercentage)).boundedTo(hardLimitSize);
     const QSizeF imageSize = graphicsView->getEffectiveOriginalSize();
     const int fitOverscan = graphicsView->getFitOverscan();
     const QSize fitOverscanSize = QSize(fitOverscan * 2, fitOverscan * 2);
+    const bool enforceMinSizeBothDimensions = false;
 
     QSize targetSize = imageSize.toSize() - fitOverscanSize;
 
-    if (targetSize.width() > maxWindowSize.width() || targetSize.height() > maxWindowSize.height())
+    const bool limitToMin = targetSize.width() < minWindowSize.width() && targetSize.height() < minWindowSize.height();
+    const bool limitToMax = targetSize.width() > maxWindowSize.width() || targetSize.height() > maxWindowSize.height();
+    if (limitToMin || limitToMax)
     {
-        const QSizeF viewSize = maxWindowSize + fitOverscanSize;
+        const QSizeF viewSize = (limitToMin ? minWindowSize : maxWindowSize) + fitOverscanSize;
         const qreal fitRatio = qMin(viewSize.width() / imageSize.width(), viewSize.height() / imageSize.height());
         targetSize = (imageSize * fitRatio).toSize() - fitOverscanSize;
     }
 
-    targetSize = targetSize.expandedTo(minWindowSize).boundedTo(maxWindowSize);
+    if (enforceMinSizeBothDimensions)
+        targetSize = targetSize.expandedTo(minWindowSize);
 
     // Match center after new geometry
     // This is smoother than a single geometry set for some reason

src/qvgraphicsview.cpp

@@ -454,7 +454,11 @@ void QVGraphicsView::zoomToFit()
 
 void QVGraphicsView::originalSize()
 {
-    zoomAbsolute(1.0);
+    const bool originalSizeAsToggle = true;
+    if (originalSizeAsToggle && zoomLevel == 1.0)
+        zoomToFit();
+    else
+        zoomAbsolute(1.0);
 }
 
 void QVGraphicsView::centerImage()

src/qvgraphicsview.h

@@ -130,14 +130,14 @@ private slots:
     bool isScalingEnabled;
     bool isScalingTwoEnabled;
     bool isPastActualSizeEnabled;
-    int fitOverscan;
     bool isScrollZoomsEnabled;
     bool isLoopFoldersEnabled;
     bool isCursorZoomEnabled;
     bool isOneToOnePixelSizingEnabled;
     int cropMode;
     qreal zoomMultiplier;
 
+    int fitOverscan;
     qreal zoomLevel;
     qreal appliedDpiAdjustment;
     qreal appliedExpensiveScaleZoomLevel;