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