Added PNM image handler

[wxWidgets.git] / src / msw / dc.cpp

diff --git a/src/msw/dc.cpp b/src/msw/dc.cpp
index 33423e3172232d21b22a124b9378f9fd78198bcc..f424405768d840d002d44ca63677659eaf6162f9 100644 (file)
--- a/src/msw/dc.cpp
+++ b/src/msw/dc.cpp
@@ -29,22 +29,26 @@
 #endif
 
 #ifndef WX_PRECOMP
-    #include "wx/frame.h"
+    #include "wx/window.h"
     #include "wx/dc.h"
     #include "wx/utils.h"
     #include "wx/dialog.h"
     #include "wx/app.h"
     #include "wx/bitmap.h"
     #include "wx/dcmemory.h"
+    #include "wx/log.h"
+    #include "wx/icon.h"
 #endif
 
 #include "wx/dcprint.h"
-#include "wx/msw/private.h"
 
 #include <string.h>
 #include <math.h>
 
 #if wxUSE_COMMON_DIALOGS
+#if wxUSE_NORLANDER_HEADERS
+    #include <windows.h>
+#endif
     #include <commdlg.h>
 #endif
 
@@ -52,17 +56,7 @@
     #include <print.h>
 #endif
 
-#ifdef DrawText
-    #undef DrawText
-#endif
-
-#ifdef GetCharWidth
-    #undef GetCharWidth
-#endif
-
-#ifdef StartDoc
-    #undef StartDoc
-#endif
+#include "wx/msw/private.h"
 
 #if !USE_SHARED_LIBRARY
     IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
@@ -72,13 +66,10 @@
 // constants
 // ---------------------------------------------------------------------------
 
-#define VIEWPORT_EXTENT 1000
-
-// ---------------------------------------------------------------------------
-// macros
-// ---------------------------------------------------------------------------
+static const int VIEWPORT_EXTENT = 1000;
 
-#define YSCALE(y) (yorigin - (y))
+static const int MM_POINTS = 9;
+static const int MM_METRIC = 10;
 
 // ===========================================================================
 // implementation
@@ -255,14 +246,19 @@ int wxDC::GetDepth() const
 void wxDC::Clear()
 {
     RECT rect;
-    if (m_canvas)
+    if ( m_canvas )
+    {
         GetClientRect((HWND) m_canvas->GetHWND(), &rect);
-    else if (m_selectedBitmap.Ok())
+    }
+    else
     {
+        wxCHECK_RET( m_selectedBitmap.Ok(), _T("this DC can't be cleared") );
+
         rect.left = 0; rect.top = 0;
         rect.right = m_selectedBitmap.GetWidth();
         rect.bottom = m_selectedBitmap.GetHeight();
     }
+
     (void) ::SetMapMode(GetHdc(), MM_TEXT);
 
     DWORD colour = GetBkColor(GetHdc());
@@ -519,7 +515,7 @@ void wxDC::DoDrawRoundedRectangle(long x, long y, long width, long height, doubl
     long y2 = (y+height);
 
     (void)RoundRect(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2),
-        YLOG2DEV(y2), 2*XLOG2DEV(radius), 2*YLOG2DEV(radius));
+        YLOG2DEV(y2), (int) (2*XLOG2DEV(radius)), (int)( 2*YLOG2DEV(radius)));
 
     CalcBoundingBox(x, y);
     CalcBoundingBox(x2, y2);
@@ -598,9 +594,11 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, long x, long y, bool useMask )
         HDC cdc = GetHdc();
         HDC memdc = ::CreateCompatibleDC( cdc );
         HBITMAP hbitmap = (HBITMAP) bmp.GetHBITMAP( );
+
+        wxASSERT_MSG( hbitmap, _T("bitmap is ok but HBITMAP is NULL?") );
+
         ::SelectObject( memdc, hbitmap );
         ::BitBlt( cdc, x, y, bmp.GetWidth(), bmp.GetHeight(), memdc, 0, 0, SRCCOPY);
-        ::SelectObject( memdc, 0 );
         ::DeleteDC( memdc );
     }
     else
@@ -641,11 +639,15 @@ void wxDC::DoDrawText(const wxString& text, long x, long y)
     else
         SetBkMode(GetHdc(), OPAQUE);
 
-    (void)TextOut(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), (char *) (const char *)text, strlen((const char *)text));
+    (void)TextOut(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), WXSTRINGCAST text, wxStrlen(WXSTRINGCAST text));
 
     if (m_textBackgroundColour.Ok())
         (void)SetBkColor(GetHdc(), old_background);
 
+    // background colour is used only for DrawText, otherwise
+    // always TRANSPARENT, RR
+    SetBkMode(GetHdc(), TRANSPARENT);
+
     CalcBoundingBox(x, y);
 
     long w, h;
@@ -716,7 +718,7 @@ void wxDC::SetFont(const wxFont& the_font)
         HFONT f = (HFONT) ::SelectObject(GetHdc(), (HFONT) m_font.GetResourceHandle());
         if (f == (HFONT) NULL)
         {
-            wxLogDebug("::SelectObject failed in wxDC::SetFont.");
+            wxLogDebug(_T("::SelectObject failed in wxDC::SetFont."));
         }
         if (!m_oldFont)
             m_oldFont = (WXHFONT) f;
@@ -829,10 +831,15 @@ void wxDC::SetBackgroundMode(int mode)
 {
     m_backgroundMode = mode;
 
+    // SetBackgroundColour now only refers to text background
+    // and m_backgroundMode is used there
+
+/*
     if (m_backgroundMode == wxTRANSPARENT)
         ::SetBkMode(GetHdc(), TRANSPARENT);
     else
-        ::SetBkMode(GetHdc(), OPAQUE);
+       ::SetBkMode(GetHdc(), OPAQUE);
+*/
 }
 
 void wxDC::SetLogicalFunction(int function)
@@ -923,7 +930,7 @@ void wxDC::GetTextExtent(const wxString& string, long *x, long *y,
     SIZE sizeRect;
     TEXTMETRIC tm;
 
-    GetTextExtentPoint(GetHdc(), (char *)(const char *) string, strlen((char *)(const char *) string), &sizeRect);
+    GetTextExtentPoint(GetHdc(), WXSTRINGCAST string, wxStrlen(WXSTRINGCAST string), &sizeRect);
     GetTextMetrics(GetHdc(), &tm);
 
     if (x) *x = XDEV2LOGREL(sizeRect.cx);
@@ -1066,22 +1073,22 @@ long wxDCBase::DeviceToLogicalYRel(long y) const
 
 long wxDCBase::LogicalToDeviceX(long x) const
 {
-    return (long) (floor((x) - m_logicalOriginX)*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX + m_deviceOriginX);
+    return (long) ((x - m_logicalOriginX)*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX + m_deviceOriginX);
 }
 
 long wxDCBase::LogicalToDeviceXRel(long x) const
 {
-    return (long) (floor(x)*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX);
+    return (long) (x*m_logicalScaleX*m_userScaleX*m_signX*m_scaleX);
 }
 
 long wxDCBase::LogicalToDeviceY(long y) const
 {
-    return (long) (floor((y) - m_logicalOriginY)*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY + m_deviceOriginY);
+    return (long) ((y - m_logicalOriginY)*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY + m_deviceOriginY);
 }
 
 long wxDCBase::LogicalToDeviceYRel(long y) const
 {
-    return (long) (floor(y)*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY);
+    return (long) (y*m_logicalScaleY*m_userScaleY*m_signY*m_scaleY);
 }
 
 // ---------------------------------------------------------------------------