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     /*
  62     int x = pos.x;
  63     int y = pos.y;
  64     int width = size.x;
  65     int height = size.y;
  66     */
  67
  68     Widget parentWidget = (Widget) parent->GetClientWidget();
  69
  70     /*
  71     * Patch Note (important)
  72     * There is no major reason to put a defaultButtonThickness here.
  73     * Not requesting it give the ability to put wxButton with a spacing
  74     * as small as requested. However, if some button become a DefaultButton,
  75     * other buttons are no more aligned -- This is why we set
  76     * defaultButtonThickness of ALL buttons belonging to the same wxPanel,
  77     * in the ::SetDefaultButton method.
  78     */
  79     Widget buttonWidget = XtVaCreateManagedWidget ("button",
  80
  81         // Gadget causes problems for default button operation.
  82 #if wxUSE_GADGETS
  83         xmPushButtonGadgetClass, parentWidget,
  84 #else
  85         xmPushButtonWidgetClass, parentWidget,
  86 #endif
  87         // See comment for wxButton::SetDefault
  88         // XmNdefaultButtonShadowThickness, 1,
  89         XmNrecomputeSize, False,
  90         NULL);
  91
  92     m_mainWidget = (WXWidget) buttonWidget;
  93
  94     ChangeFont(FALSE);
  95
  96     ChangeBackgroundColour ();
  97
  98     DoSetBitmap();
  99
 100     XtAddCallback (buttonWidget,
 101                    XmNactivateCallback, (XtCallbackProc) wxButtonCallback,
 102                    (XtPointer) this);
 103
 104     SetCanAddEventHandler(TRUE);
 105
 106     wxSize best = m_bmpNormal.Ok() ? GetBestSize() : wxSize(30, 30);
 107     if( size.x != -1 ) best.x = size.x;
 108     if( size.y != -1 ) best.y = size.y;
 109
 110     AttachWidget (parent, m_mainWidget, (WXWidget) NULL,
 111                   pos.x, pos.y, best.x, best.y);
 112
 113     return TRUE;
 114 }
 115
 116 wxBitmapButton::~wxBitmapButton()
 117 {
 118     SetBitmapLabel(wxNullBitmap);
 119
 120     if (m_insensPixmap)
 121         XmDestroyPixmap (DefaultScreenOfDisplay ((Display*) GetXDisplay()),
 122                          (Pixmap) m_insensPixmap);
 123 }
 124
 125 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
 126 {
 127     m_bmpNormalOriginal = bitmap;
 128     m_bmpNormal = bitmap;
 129
 130     DoSetBitmap();
 131 }
 132
 133 void wxBitmapButton::SetBitmapSelected(const wxBitmap& sel)
 134 {
 135     m_bmpSelected = sel;
 136     m_bmpSelectedOriginal = sel;
 137
 138     DoSetBitmap();
 139 };
 140
 141 void wxBitmapButton::SetBitmapFocus(const wxBitmap& focus)
 142 {
 143     m_bmpFocus = focus;
 144     // Not used in Motif
 145 };
 146
 147 void wxBitmapButton::SetBitmapDisabled(const wxBitmap& disabled)
 148 {
 149     m_bmpDisabled = disabled;
 150     m_bmpDisabledOriginal = disabled;
 151
 152     DoSetBitmap();
 153 };
 154
 155 void wxBitmapButton::DoSetBitmap()
 156 {
 157     if (m_bmpNormalOriginal.Ok())
 158     {
 159         Pixmap pixmap = 0;
 160         Pixmap insensPixmap = 0;
 161         Pixmap armPixmap = 0;
 162
 163         // Must re-make the bitmap to have its transparent areas drawn
 164         // in the current widget background colour.
 165         if (m_bmpNormalOriginal.GetMask())
 166         {
 167             int backgroundPixel;
 168             XtVaGetValues((Widget) m_mainWidget,
 169                           XmNbackground, &backgroundPixel,
 170                           NULL);
 171
 172             wxColour col;
 173             col.SetPixel(backgroundPixel);
 174
 175             wxBitmap newBitmap =
 176                 wxCreateMaskedBitmap(m_bmpNormalOriginal, col);
 177             m_bmpNormal = newBitmap;
 178
 179             pixmap = (Pixmap) m_bmpNormal.GetPixmap();
 180         }
 181         else
 182             pixmap = (Pixmap) m_bmpNormal.GetLabelPixmap(m_mainWidget);
 183
 184         if (m_bmpDisabledOriginal.Ok())
 185         {
 186             if (m_bmpDisabledOriginal.GetMask())
 187             {
 188                 int backgroundPixel;
 189                 XtVaGetValues((Widget) m_mainWidget,
 190                               XmNbackground, &backgroundPixel,
 191                               NULL);
 192
 193                 wxColour col;
 194                 col.SetPixel(backgroundPixel);
 195
 196                 wxBitmap newBitmap =
 197                     wxCreateMaskedBitmap(m_bmpDisabledOriginal, col);
 198                 m_bmpDisabled = newBitmap;
 199
 200                 insensPixmap = (Pixmap) m_bmpDisabled.GetPixmap();
 201             }
 202             else
 203                 insensPixmap = (Pixmap) m_bmpNormal.GetInsensPixmap(m_mainWidget);
 204         }
 205         else
 206             insensPixmap = (Pixmap) m_bmpNormal.GetInsensPixmap(m_mainWidget);
 207
 208         // Now make the bitmap representing the armed state
 209         if (m_bmpSelectedOriginal.Ok())
 210         {
 211             if (m_bmpSelectedOriginal.GetMask())
 212             {
 213                 int backgroundPixel;
 214                 XtVaGetValues((Widget) m_mainWidget,
 215                               XmNarmColor, &backgroundPixel,
 216                               NULL);
 217
 218                 wxColour col;
 219                 col.SetPixel(backgroundPixel);
 220
 221                 wxBitmap newBitmap =
 222                     wxCreateMaskedBitmap(m_bmpSelectedOriginal, col);
 223                 m_bmpSelected = newBitmap;
 224
 225                 armPixmap = (Pixmap) m_bmpSelected.GetPixmap();
 226             }
 227             else
 228                 armPixmap = (Pixmap) m_bmpNormal.GetArmPixmap(m_mainWidget);
 229         }
 230         else
 231             armPixmap = (Pixmap) m_bmpNormal.GetArmPixmap(m_mainWidget);
 232
 233         // <- the Get...Pixmap()-functions return the same pixmap!
 234         if (insensPixmap == pixmap)
 235         {
 236             insensPixmap =
 237                 XCreateInsensitivePixmap(DisplayOfScreen(XtScreen((Widget) m_mainWidget)), pixmap);
 238             m_insensPixmap = (WXPixmap) insensPixmap;
 239         }
 240
 241         XtVaSetValues ((Widget) m_mainWidget,
 242             XmNlabelPixmap, pixmap,
 243             XmNlabelInsensitivePixmap, insensPixmap,
 244             XmNarmPixmap, armPixmap,
 245             XmNlabelType, XmPIXMAP,
 246             NULL);
 247     }
 248     else
 249     {
 250         // Null bitmap: must not use current pixmap
 251         // since it is no longer valid.
 252         XtVaSetValues ((Widget) m_mainWidget,
 253             XmNlabelType, XmSTRING,
 254             XmNlabelPixmap, XmUNSPECIFIED_PIXMAP,
 255             XmNlabelInsensitivePixmap, XmUNSPECIFIED_PIXMAP,
 256             XmNarmPixmap, XmUNSPECIFIED_PIXMAP,
 257             NULL);
 258     }
 259 }
 260
 261 void wxBitmapButton::ChangeBackgroundColour()
 262 {
 263     DoChangeBackgroundColour(m_mainWidget, m_backgroundColour, TRUE);
 264
 265     // Must reset the bitmaps since the colours have changed.
 266     DoSetBitmap();
 267 }
 268
 269 wxSize wxBitmapButton::DoGetBestSize() const
 270 {
 271     wxSize ret( 30,30 );
 272
 273     if (m_bmpNormal.Ok())
 274     {
 275         int border = (GetWindowStyle() & wxNO_BORDER) ? 4 : 10;
 276         ret.x = m_bmpNormal.GetWidth()+border;
 277         ret.y = m_bmpNormal.GetHeight()+border;
 278     }
 279
 280     return ret;
 281 }
 282