src/motif/button.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        button.cpp
   3 // Purpose:     wxButton
   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 "button.h"
  14 #endif
  15
  16 #include "wx/button.h"
  17 #include "wx/utils.h"
  18
  19 #include <Xm/PushBG.h>
  20 #include <Xm/PushB.h>
  21
  22 #include "wx/motif/private.h"
  23
  24 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer ptr);
  25
  26 #if !USE_SHARED_LIBRARY
  27 IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
  28 #endif
  29
  30 // Button
  31
  32 bool wxButton::Create(wxWindow *parent, wxWindowID id, const wxString& label,
  33            const wxPoint& pos,
  34            const wxSize& size, long style,
  35            const wxValidator& validator,
  36            const wxString& name)
  37 {
  38     SetName(name);
  39     SetValidator(validator);
  40     m_windowStyle = style;
  41
  42     parent->AddChild((wxButton *)this);
  43
  44     if (id == -1)
  45         m_windowId = NewControlId();
  46     else
  47         m_windowId = id;
  48
  49     wxString label1(wxStripMenuCodes(label));
  50
  51     XmString text = XmStringCreateSimple ((char*) (const char*) label1);
  52     Widget parentWidget = (Widget) parent->GetClientWidget();
  53
  54     /*
  55      * Patch Note (important)
  56      * There is no major reason to put a defaultButtonThickness here.
  57      * Not requesting it give the ability to put wxButton with a spacing
  58      * as small as requested. However, if some button become a DefaultButton,
  59      * other buttons are no more aligned -- This is why we set
  60      * defaultButtonThickness of ALL buttons belonging to the same wxPanel,
  61      * in the ::SetDefaultButton method.
  62      */
  63     m_mainWidget = (WXWidget) XtVaCreateManagedWidget ("button",
  64                                         xmPushButtonWidgetClass,
  65                                                  parentWidget,
  66                                                  XmNlabelString, text,
  67 //                  XmNdefaultButtonShadowThickness, 1, // See comment for wxButton::SetDefault
  68                                                  NULL);
  69
  70     XmStringFree (text);
  71
  72     XtAddCallback ((Widget) m_mainWidget, XmNactivateCallback, (XtCallbackProc) wxButtonCallback,
  73             (XtPointer) this);
  74
  75
  76     SetCanAddEventHandler(TRUE);
  77     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
  78
  79     SetFont(* parent->GetFont());
  80     ChangeColour(m_mainWidget);
  81
  82     return TRUE;
  83 }
  84
  85 void wxButton::SetDefault()
  86 {
  87     wxWindow *parent = (wxWindow *)GetParent();
  88     if (parent)
  89         parent->SetDefaultItem(this);
  90
  91   // We initially do not set XmNdefaultShadowThickness, to have small buttons.
  92   // Unfortunately, buttons are now mis-aligned. We try to correct this
  93   // now -- setting this ressource to 1 for each button in the same row.
  94   // Because it's very hard to find wxButton in the same row,
  95   // correction is straighforward: we set resource for all wxButton
  96   // in this parent (but not sub panels)
  97   for (wxNode * node = parent->GetChildren ()->First (); node; node = node->Next ())
  98     {
  99       wxButton *item = (wxButton *) node->Data ();
 100       if (item->IsKindOf(CLASSINFO(wxButton)))
 101         {
 102           bool managed = XtIsManaged((Widget) item->GetMainWidget());
 103           if (managed)
 104             XtUnmanageChild ((Widget) item->GetMainWidget());
 105
 106           XtVaSetValues ((Widget) item->GetMainWidget(),
 107                          XmNdefaultButtonShadowThickness, 1,
 108                          NULL);
 109
 110           if (managed)
 111             XtManageChild ((Widget) item->GetMainWidget());
 112         }
 113     }                           // while
 114
 115 //  XtVaSetValues((Widget)handle, XmNshowAsDefault, 1, NULL);
 116   XtVaSetValues ((Widget) parent->GetMainWidget(), XmNdefaultButton, (Widget) GetMainWidget(), NULL);
 117 }
 118
 119 void wxButton::Command (wxCommandEvent & event)
 120 {
 121     ProcessCommand (event);
 122 }
 123
 124 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer ptr)
 125 {
 126   if (!wxGetWindowFromTable(w))
 127     // Widget has been deleted!
 128     return;
 129
 130   wxButton *item = (wxButton *) clientData;
 131   wxCommandEvent event (wxEVT_COMMAND_BUTTON_CLICKED, item->GetId());
 132   event.SetEventObject(item);
 133   item->ProcessCommand (event);
 134 }