src/motif/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bmpbuttn.cpp
   3 // Purpose:     wxBitmapButton
   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 "bmpbuttn.h"
  14 #endif
  15
  16 #ifdef __VMS
  17 #define XtScreen XTSCREEN
  18 #endif
  19
  20 #include "wx/defs.h"
  21
  22 #include "wx/bmpbuttn.h"
  23
  24 #ifdef __VMS__
  25 #pragma message disable nosimpint
  26 #endif
  27 #include <Xm/PushBG.h>
  28 #include <Xm/PushB.h>
  29 #ifdef __VMS__
  30 #pragma message enable nosimpint
  31 #endif
  32
  33 #include "wx/motif/private.h"
  34
  35 // Implemented in button.cpp
  36 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer ptr);
  37
  38 // Pixmap XCreateInsensitivePixmap( Display *display, Pixmap pixmap );
  39
  40 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  41
  42 wxBitmapButton::wxBitmapButton()
  43 {
  44     m_marginX = m_marginY = wxDEFAULT_BUTTON_MARGIN;
  45     m_insensPixmap = (WXPixmap) 0;
  46 }
  47
  48 bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id,
  49                             const wxBitmap& bitmap,
  50                             const wxPoint& pos,
  51                             const wxSize& size, long style,
  52                             const wxValidator& validator,
  53                             const wxString& name)
  54 {
  55     if( !CreateControl( parent, id, pos, size, style, validator, name ) )
  56         return false;
  57
  58     m_bmpNormal = m_bmpNormalOriginal = bitmap;
  59     m_bmpSelected = m_bmpSelectedOriginal = bitmap;
  60
  61     Widget parentWidget = (Widget) parent->GetClientWidget();
  62
  63     /*
  64     * Patch Note (important)
  65     * There is no major reason to put a defaultButtonThickness here.
  66     * Not requesting it give the ability to put wxButton with a spacing
  67     * as small as requested. However, if some button become a DefaultButton,
  68     * other buttons are no more aligned -- This is why we set
  69     * defaultButtonThickness of ALL buttons belonging to the same wxPanel,
  70     * in the ::SetDefaultButton method.
  71     */
  72     Widget buttonWidget = XtVaCreateManagedWidget ("button",
  73
  74         // Gadget causes problems for default button operation.
  75 #if wxUSE_GADGETS
  76         xmPushButtonGadgetClass, parentWidget,
  77 #else
  78         xmPushButtonWidgetClass, parentWidget,
  79 #endif
  80         // See comment for wxButton::SetDefault
  81         // XmNdefaultButtonShadowThickness, 1,
  82         XmNrecomputeSize, False,
  83         NULL);
  84
  85     m_mainWidget = (WXWidget) buttonWidget;
  86
  87     ChangeFont(FALSE);
  88
  89     ChangeBackgroundColour ();
  90
  91     DoSetBitmap();
  92
  93     XtAddCallback (buttonWidget,
  94                    XmNactivateCallback, (XtCallbackProc) wxButtonCallback,
  95                    (XtPointer) this);
  96
  97     wxSize best = m_bmpNormal.Ok() ? GetBestSize() : wxSize(30, 30);
  98     if( size.x != -1 ) best.x = size.x;
  99     if( size.y != -1 ) best.y = size.y;
 100
 101     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
 102                   pos.x, pos.y, best.x, best.y);
 103
 104     return TRUE;
 105 }
 106
 107 wxBitmapButton::~wxBitmapButton()
 108 {
 109     SetBitmapLabel(wxNullBitmap);
 110
 111     if (m_insensPixmap)
 112         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) GetXDisplay()),
 113                          (Pixmap) m_insensPixmap);
 114 }
 115
 116 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
 117 {
 118     m_bmpNormalOriginal = bitmap;
 119     m_bmpNormal = bitmap;
 120
 121     DoSetBitmap();
 122 }
 123
 124 void wxBitmapButton::SetBitmapSelected(const wxBitmap& sel)
 125 {
 126     m_bmpSelected = sel;
 127     m_bmpSelectedOriginal = sel;
 128
 129     DoSetBitmap();
 130 };
 131
 132 void wxBitmapButton::SetBitmapFocus(const wxBitmap& focus)
 133 {
 134     m_bmpFocus = focus;
 135     // Not used in Motif
 136 };
 137
 138 void wxBitmapButton::SetBitmapDisabled(const wxBitmap& disabled)
 139 {
 140     m_bmpDisabled = disabled;
 141     m_bmpDisabledOriginal = disabled;
 142
 143     DoSetBitmap();
 144 };
 145
 146 void wxBitmapButton::DoSetBitmap()
 147 {
 148     if (m_bmpNormalOriginal.Ok())
 149     {
 150         Pixmap pixmap = 0;
 151         Pixmap insensPixmap = 0;
 152         Pixmap armPixmap = 0;
 153
 154         // Must re-make the bitmap to have its transparent areas drawn
 155         // in the current widget background colour.
 156         if (m_bmpNormalOriginal.GetMask())
 157         {
 158             int backgroundPixel;
 159             XtVaGetValues((Widget) m_mainWidget,
 160                           XmNbackground, &backgroundPixel,
 161                           NULL);
 162
 163             wxColour col;
 164             col.SetPixel(backgroundPixel);
 165
 166             wxBitmap newBitmap =
 167                 wxCreateMaskedBitmap(m_bmpNormalOriginal, col);
 168             m_bmpNormal = newBitmap;
 169             m_bitmapCache.SetBitmap( m_bmpNormal );
 170
 171             pixmap = (Pixmap) m_bmpNormal.GetDrawable();
 172         }
 173         else
 174         {
 175             m_bitmapCache.SetBitmap( m_bmpNormal );
 176             pixmap = (Pixmap) m_bitmapCache.GetLabelPixmap(m_mainWidget);
 177         }
 178
 179         if (m_bmpDisabledOriginal.Ok())
 180         {
 181             if (m_bmpDisabledOriginal.GetMask())
 182             {
 183                 int backgroundPixel;
 184                 XtVaGetValues((Widget) m_mainWidget,
 185                               XmNbackground, &backgroundPixel,
 186                               NULL);
 187
 188                 wxColour col;
 189                 col.SetPixel(backgroundPixel);
 190
 191                 wxBitmap newBitmap =
 192                     wxCreateMaskedBitmap(m_bmpDisabledOriginal, col);
 193                 m_bmpDisabled = newBitmap;
 194
 195                 insensPixmap = (Pixmap) m_bmpDisabled.GetDrawable();
 196             }
 197             else
 198                 insensPixmap = (Pixmap) m_bitmapCache.GetInsensPixmap(m_mainWidget);
 199         }
 200         else
 201             insensPixmap = (Pixmap) m_bitmapCache.GetInsensPixmap(m_mainWidget);
 202
 203         // Now make the bitmap representing the armed state
 204         if (m_bmpSelectedOriginal.Ok())
 205         {
 206             if (m_bmpSelectedOriginal.GetMask())
 207             {
 208                 int backgroundPixel;
 209                 XtVaGetValues((Widget) m_mainWidget,
 210                               XmNarmColor, &backgroundPixel,
 211                               NULL);
 212
 213                 wxColour col;
 214                 col.SetPixel(backgroundPixel);
 215
 216                 wxBitmap newBitmap =
 217                     wxCreateMaskedBitmap(m_bmpSelectedOriginal, col);
 218                 m_bmpSelected = newBitmap;
 219
 220                 armPixmap = (Pixmap) m_bmpSelected.GetDrawable();
 221             }
 222             else
 223                 armPixmap = (Pixmap) m_bitmapCache.GetArmPixmap(m_mainWidget);
 224         }
 225         else
 226             armPixmap = (Pixmap) m_bitmapCache.GetArmPixmap(m_mainWidget);
 227
 228         XtVaSetValues ((Widget) m_mainWidget,
 229             XmNlabelPixmap, pixmap,
 230             XmNlabelInsensitivePixmap, insensPixmap,
 231             XmNarmPixmap, armPixmap,
 232             XmNlabelType, XmPIXMAP,
 233             NULL);
 234     }
 235     else
 236     {
 237         // Null bitmap: must not use current pixmap
 238         // since it is no longer valid.
 239         XtVaSetValues ((Widget) m_mainWidget,
 240             XmNlabelType, XmSTRING,
 241             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 242             XmNlabelInsensitivePixmap, XmUNSPECIFIED_PIXMAP,
 243             XmNarmPixmap, XmUNSPECIFIED_PIXMAP,
 244             NULL);
 245     }
 246 }
 247
 248 void wxBitmapButton::ChangeBackgroundColour()
 249 {
 250     wxDoChangeBackgroundColour(m_mainWidget, m_backgroundColour, TRUE);
 251
 252     // Must reset the bitmaps since the colours have changed.
 253     DoSetBitmap();
 254 }
 255
 256 wxSize wxBitmapButton::DoGetBestSize() const
 257 {
 258     wxSize ret( 30,30 );
 259
 260     if (m_bmpNormal.Ok())
 261     {
 262         int border = (GetWindowStyle() & wxNO_BORDER) ? 4 : 10;
 263         ret.x = m_bmpNormal.GetWidth()+border;
 264         ret.y = m_bmpNormal.GetHeight()+border;
 265     }
 266
 267     return ret;
 268 }
 269