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