src/motif/statbmp.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        statbmp.cpp
   3 // Purpose:     wxStaticBitmap
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  13 #pragma implementation "statbmp.h"
  14 #endif
  15
  16 #include "wx/defs.h"
  17
  18 #include "wx/statbmp.h"
  19
  20 #ifdef __VMS__
  21 #pragma message disable nosimpint
  22 #endif
  23 #include <Xm/Xm.h>
  24 #include <Xm/Label.h>
  25 #include <Xm/LabelG.h>
  26 #ifdef __VMS__
  27 #pragma message enable nosimpint
  28 #endif
  29
  30 #include "wx/motif/private.h"
  31
  32 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
  33
  34 /*
  35  * wxStaticBitmap
  36  */
  37
  38 bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
  39            const wxBitmap& bitmap,
  40            const wxPoint& pos,
  41            const wxSize& size,
  42            long style,
  43            const wxString& name)
  44 {
  45     if( !CreateControl( parent, id, pos, size, style, wxDefaultValidator,
  46                         name ) )
  47         return false;
  48
  49     m_messageBitmap = bitmap;
  50     m_messageBitmapOriginal = bitmap;
  51
  52     Widget parentWidget = (Widget) parent->GetClientWidget();
  53
  54     m_mainWidget = (WXWidget) XtVaCreateManagedWidget ("staticBitmap",
  55 #if USE_GADGETS
  56                     xmLabelGadgetClass, parentWidget,
  57 #else
  58                     xmLabelWidgetClass, parentWidget,
  59 #endif
  60                     XmNalignment, XmALIGNMENT_BEGINNING,
  61                     NULL);
  62
  63     ChangeBackgroundColour ();
  64
  65     DoSetBitmap();
  66
  67     ChangeFont(FALSE);
  68
  69     wxSize actualSize(size);
  70     // work around the cases where the bitmap is a wxNull(Icon/Bitmap)
  71     if (actualSize.x == -1)
  72         actualSize.x = bitmap.Ok() ? bitmap.GetWidth() : 1;
  73     if (actualSize.y == -1)
  74         actualSize.y = bitmap.Ok() ? bitmap.GetHeight() : 1;
  75     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
  76                   pos.x, pos.y, actualSize.x, actualSize.y);
  77
  78     return true;
  79 }
  80
  81 wxStaticBitmap::~wxStaticBitmap()
  82 {
  83     SetBitmap(wxNullBitmap);
  84 }
  85
  86 void wxStaticBitmap::DoSetBitmap()
  87 {
  88     Widget widget = (Widget) m_mainWidget;
  89     int w2, h2;
  90
  91     if (m_messageBitmapOriginal.Ok())
  92     {
  93         w2 = m_messageBitmapOriginal.GetWidth();
  94         h2 = m_messageBitmapOriginal.GetHeight();
  95
  96         Pixmap pixmap;
  97
  98         // Must re-make the bitmap to have its transparent areas drawn
  99         // in the current widget background colour.
 100         if (m_messageBitmapOriginal.GetMask())
 101         {
 102             int backgroundPixel;
 103             XtVaGetValues( widget, XmNbackground, &backgroundPixel,
 104                 NULL);
 105
 106             wxColour col;
 107             col.SetPixel(backgroundPixel);
 108
 109             wxBitmap newBitmap = wxCreateMaskedBitmap(m_messageBitmapOriginal, col);
 110             m_messageBitmap = newBitmap;
 111
 112             pixmap = (Pixmap) m_messageBitmap.GetDrawable();
 113         }
 114         else
 115         {
 116             m_bitmapCache.SetBitmap( m_messageBitmap );
 117             pixmap = (Pixmap)m_bitmapCache.GetLabelPixmap(widget);
 118         }
 119
 120         XtVaSetValues (widget,
 121             XmNlabelPixmap, pixmap,
 122             XmNlabelType, XmPIXMAP,
 123             NULL);
 124
 125         SetSize(w2, h2);
 126     }
 127     else
 128     {
 129         // Null bitmap: must not use current pixmap
 130         // since it is no longer valid.
 131         XtVaSetValues (widget,
 132             XmNlabelType, XmSTRING,
 133             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 134             NULL);
 135     }
 136 }
 137
 138 void wxStaticBitmap::SetBitmap(const wxBitmap& bitmap)
 139 {
 140     m_messageBitmap = bitmap;
 141     m_messageBitmapOriginal = bitmap;
 142
 143     DoSetBitmap();
 144 }
 145
 146 void wxStaticBitmap::ChangeBackgroundColour()
 147 {
 148     wxWindow::ChangeBackgroundColour();
 149
 150     // must recalculate the background colour
 151     m_bitmapCache.SetColoursChanged();
 152     DoSetBitmap();
 153 }
 154
 155 void wxStaticBitmap::ChangeForegroundColour()
 156 {
 157     m_bitmapCache.SetColoursChanged();
 158     wxWindow::ChangeForegroundColour();
 159 }
 160