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