X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dc7ccb9c5dcc8d68157dcc2c7cd2da230d45916d..02bcd285fac7124a41292d905609220005f51087:/src/common/prntbase.cpp?ds=sidebyside

diff --git a/src/common/prntbase.cpp b/src/common/prntbase.cpp
index b3f2e48a3d..2a46570fa0 100644
--- a/src/common/prntbase.cpp
+++ b/src/common/prntbase.cpp
@@ -9,11 +9,6 @@
 // Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-  #pragma implementation "prntbase.h"
-  #pragma implementation "printdlg.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -103,7 +98,7 @@ wxPrinterBase *wxNativePrintFactory::CreatePrinter( wxPrintDialogData *data )
 #else
     return new wxPostScriptPrinter( data );
 #endif
-};
+}
 
 wxPrintPreviewBase *wxNativePrintFactory::CreatePrintPreview( wxPrintout *preview,
     wxPrintout *printout, wxPrintDialogData *data )
@@ -567,6 +562,9 @@ BEGIN_EVENT_TABLE(wxPreviewCanvas, wxScrolledWindow)
     EVT_PAINT(wxPreviewCanvas::OnPaint)
     EVT_CHAR(wxPreviewCanvas::OnChar)
     EVT_SYS_COLOUR_CHANGED(wxPreviewCanvas::OnSysColourChanged)
+#if wxUSE_MOUSEWHEEL
+    EVT_MOUSEWHEEL(wxPreviewCanvas::OnMouseWheel)
+#endif
 END_EVENT_TABLE()
 
 // VZ: the current code doesn't refresh properly without
@@ -669,6 +667,50 @@ void wxPreviewCanvas::OnChar(wxKeyEvent &event)
     }
 }
 
+#if wxUSE_MOUSEWHEEL
+
+void wxPreviewCanvas::OnMouseWheel(wxMouseEvent& event)
+{
+    wxPreviewControlBar *
+        controlBar = wxStaticCast(GetParent(), wxPreviewFrame)->GetControlBar();
+
+    if ( controlBar )
+    {
+        if ( event.ControlDown() && event.GetWheelRotation() != 0 )
+        {
+            int currentZoom = controlBar->GetZoomControl();
+
+            int delta;
+            if ( currentZoom < 100 )
+                delta = 5;
+            else if ( currentZoom <= 120 )
+                delta = 10;
+            else
+                delta = 50;
+
+            if ( event.GetWheelRotation() > 0 )
+                delta = -delta;
+
+            int newZoom = currentZoom + delta;
+            if ( newZoom < 10 )
+                newZoom = 10;
+            if ( newZoom > 200 )
+                newZoom = 200;
+            if ( newZoom != currentZoom )
+            {
+                controlBar->SetZoomControl(newZoom);
+                m_printPreview->SetZoom(newZoom);
+                Refresh();
+            }
+            return;
+        }
+    }
+
+    event.Skip();
+}
+
+#endif // wxUSE_MOUSEWHEEL
+
 //----------------------------------------------------------------------------
 // wxPreviewControlBar
 //----------------------------------------------------------------------------
@@ -1094,17 +1136,17 @@ bool wxPrintPreviewBase::SetCurrentPage(int pageNum)
 }
 
 int wxPrintPreviewBase::GetCurrentPage() const
-    { return m_currentPage; };
+    { return m_currentPage; }
 void wxPrintPreviewBase::SetPrintout(wxPrintout *printout)
-    { m_previewPrintout = printout; };
+    { m_previewPrintout = printout; }
 wxPrintout *wxPrintPreviewBase::GetPrintout() const
-    { return m_previewPrintout; };
+    { return m_previewPrintout; }
 wxPrintout *wxPrintPreviewBase::GetPrintoutForPrinting() const
-    { return m_printPrintout; };
+    { return m_printPrintout; }
 void wxPrintPreviewBase::SetFrame(wxFrame *frame)
-    { m_previewFrame = frame; };
+    { m_previewFrame = frame; }
 void wxPrintPreviewBase::SetCanvas(wxPreviewCanvas *canvas)
-    { m_previewCanvas = canvas; };
+    { m_previewCanvas = canvas; }
 wxFrame *wxPrintPreviewBase::GetFrame() const
     { return m_previewFrame; }
 wxPreviewCanvas *wxPrintPreviewBase::GetCanvas() const