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