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 #ifdef __GNUG__
  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 #include <Xm/RowColumn.h>
  27 #ifdef __VMS__
  28 #pragma message enable nosimpint
  29 #endif
  30
  31 #include "wx/motif/private.h"
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxStaticBitmap, wxControl)
  34
  35 /*
  36  * wxStaticBitmap
  37  */
  38
  39 bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
  40            const wxBitmap& bitmap,
  41            const wxPoint& pos,
  42            const wxSize& size,
  43            long style,
  44            const wxString& name)
  45 {
  46     m_messageBitmap = bitmap;
  47     m_messageBitmapOriginal = bitmap;
  48     SetName(name);
  49     m_backgroundColour = parent->GetBackgroundColour();
  50     m_foregroundColour = parent->GetForegroundColour();
  51     if (parent) parent->AddChild(this);
  52
  53     if ( id == -1 )
  54         m_windowId = (int)NewControlId();
  55     else
  56         m_windowId = id;
  57
  58     m_windowStyle = style;
  59
  60     Widget parentWidget = (Widget) parent->GetClientWidget();
  61
  62     m_mainWidget = (WXWidget) XtVaCreateManagedWidget ("staticBitmap",
  63 #if USE_GADGETS
  64                     xmLabelGadgetClass, parentWidget,
  65 #else
  66                     xmLabelWidgetClass, parentWidget,
  67 #endif
  68                     XmNalignment, XmALIGNMENT_BEGINNING,
  69                     NULL);
  70
  71     ChangeBackgroundColour ();
  72
  73     DoSetBitmap();
  74
  75     m_font = parent->GetFont();
  76     ChangeFont(FALSE);
  77
  78     wxSize actualSize(size);
  79     // work around the cases where the bitmap is a wxNull(Icon/Bitmap)
  80     if (actualSize.x == -1)
  81         actualSize.x = bitmap.GetWidth() ? bitmap.GetWidth() : 1;
  82     if (actualSize.y == -1)
  83         actualSize.y = bitmap.GetHeight() ? bitmap.GetHeight() : 1;
  84     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, actualSize.x, actualSize.y);
  85
  86     return TRUE;
  87 }
  88
  89 wxStaticBitmap::~wxStaticBitmap()
  90 {
  91     SetBitmap(wxNullBitmap);
  92 }
  93
  94 void wxStaticBitmap::DoSetBitmap()
  95 {
  96     Widget widget = (Widget) m_mainWidget;
  97     int x, y, w1, h1, w2, h2;
  98
  99     GetPosition(&x, &y);
 100
 101     if (m_messageBitmapOriginal.Ok())
 102     {
 103         w2 = m_messageBitmapOriginal.GetWidth();
 104         h2 = m_messageBitmapOriginal.GetHeight();
 105
 106         Pixmap pixmap;
 107
 108         // Must re-make the bitmap to have its transparent areas drawn
 109         // in the current widget background colour.
 110         if (m_messageBitmapOriginal.GetMask())
 111         {
 112             int backgroundPixel;
 113             XtVaGetValues( widget, XmNbackground, &backgroundPixel,
 114                 NULL);
 115
 116             wxColour col;
 117             col.SetPixel(backgroundPixel);
 118
 119             wxBitmap newBitmap = wxCreateMaskedBitmap(m_messageBitmapOriginal, col);
 120             m_messageBitmap = newBitmap;
 121
 122             pixmap = (Pixmap) m_messageBitmap.GetDrawable();
 123         }
 124         else
 125         {
 126             m_bitmapCache.SetBitmap( m_messageBitmap );
 127             pixmap = (Pixmap)m_bitmapCache.GetLabelPixmap(widget);
 128         }
 129
 130         XtVaSetValues (widget,
 131             XmNlabelPixmap, pixmap,
 132             XmNlabelType, XmPIXMAP,
 133             NULL);
 134         GetSize(&w1, &h1);
 135
 136         if (! (w1 == w2) && (h1 == h2))
 137             SetSize(x, y, w2, h2);
 138     }
 139     else
 140     {
 141         // Null bitmap: must not use current pixmap
 142         // since it is no longer valid.
 143         XtVaSetValues (widget,
 144             XmNlabelType, XmSTRING,
 145             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 146             NULL);
 147     }
 148 }
 149
 150 void wxStaticBitmap::SetBitmap(const wxBitmap& bitmap)
 151 {
 152     m_messageBitmap = bitmap;
 153     m_messageBitmapOriginal = bitmap;
 154
 155     DoSetBitmap();
 156 }
 157
 158 void wxStaticBitmap::ChangeFont(bool keepOriginalSize)
 159 {
 160     wxWindow::ChangeFont(keepOriginalSize);
 161 }
 162
 163 void wxStaticBitmap::ChangeBackgroundColour()
 164 {
 165     wxWindow::ChangeBackgroundColour();
 166
 167     // must recalculate the background colour
 168     m_bitmapCache.SetColoursChanged();
 169     DoSetBitmap();
 170 }
 171
 172 void wxStaticBitmap::ChangeForegroundColour()
 173 {
 174     m_bitmapCache.SetColoursChanged();
 175     wxWindow::ChangeForegroundColour();
 176 }
 177