+
+void ScintillaWX::DoMouseWheel(int rotation, int delta, int linesPerAction, int ctrlDown) {
+ int topLineNew = topLine;
+ int lines;
+
+ if (ctrlDown) { // Zoom the fonts if Ctrl key down
+ if (rotation < 0) {
+ KeyCommand(SCI_ZOOMIN);
+ }
+ else {
+ KeyCommand(SCI_ZOOMOUT);
+ }
+ }
+ else { // otherwise just scroll the window
+ wheelRotation += rotation;
+ lines = wheelRotation / delta;
+ wheelRotation -= lines * delta;
+ if (lines != 0) {
+ lines *= linesPerAction;
+ topLineNew -= lines;
+ ScrollTo(topLineNew);
+ }
+ }
+}
+
+