X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/376aa62a5d8ead9dc9d0ab3af6628862a21137ed..5d6c4365363f84bf587c7f5f916e5830ef8a11e3:/src/gtk1/dc.cpp

diff --git a/src/gtk1/dc.cpp b/src/gtk1/dc.cpp
index 57273f2ba5..46ea5626c4 100644
--- a/src/gtk1/dc.cpp
+++ b/src/gtk1/dc.cpp
@@ -38,8 +38,10 @@ wxDC::wxDC()
 {
     m_ok = FALSE;
 
-    m_mm_to_pix_x = 1.0;
-    m_mm_to_pix_y = 1.0;
+    m_mm_to_pix_x = (double)wxGetDisplaySize().GetWidth() /
+                    (double)wxGetDisplaySizeMM().GetWidth();
+    m_mm_to_pix_y = (double)wxGetDisplaySize().GetHeight() /
+                    (double)wxGetDisplaySizeMM().GetHeight();
 
     m_needComputeScaleX = FALSE; /* not used yet */
     m_needComputeScaleY = FALSE; /* not used yet */
@@ -74,8 +76,8 @@ void wxDC::DoGetSizeMM( int* width, int* height ) const
     int w = 0;
     int h = 0;
     GetSize( &w, &h );
-    if (width) *width = int( double(w) / (m_scaleX*m_mm_to_pix_x) );
-    if (height) *height = int( double(h) / (m_scaleY*m_mm_to_pix_y) );
+    if (width) *width = int( double(w) / (m_userScaleX*m_mm_to_pix_x) );
+    if (height) *height = int( double(h) / (m_userScaleY*m_mm_to_pix_y) );
 }
 
 // Resolution in pixels per logical inch