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