src/motif/bmpbuttn.cpp

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