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 #include "wx/panel.h"
  19
  20 #include <Xm/PushBG.h>
  21 #include <Xm/PushB.h>
  22
  23 #include "wx/motif/private.h"
  24
  25 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer ptr);
  26
  27 #if !USE_SHARED_LIBRARY
  28 IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
  29 #endif
  30
  31 // Button
  32
  33 bool wxButton::Create(wxWindow *parent, wxWindowID id, const wxString& label,
  34                       const wxPoint& pos,
  35                       const wxSize& size, long style,
  36                       const wxValidator& validator,
  37                       const wxString& name)
  38 {
  39     SetName(name);
  40     SetValidator(validator);
  41     m_windowStyle = style;
  42     m_backgroundColour = parent->GetBackgroundColour();
  43     m_foregroundColour = parent->GetForegroundColour();
  44     m_font = parent->GetFont();
  45
  46     parent->AddChild((wxButton *)this);
  47
  48     if (id == -1)
  49         m_windowId = NewControlId();
  50     else
  51         m_windowId = id;
  52
  53     wxString label1(wxStripMenuCodes(label));
  54
  55     XmString text = XmStringCreateSimple ((char*) (const char*) label1);
  56     Widget parentWidget = (Widget) parent->GetClientWidget();
  57
  58     XmFontList fontList = (XmFontList) m_font.GetFontList(1.0, XtDisplay(parentWidget));
  59
  60     /*
  61     * Patch Note (important)
  62     * There is no major reason to put a defaultButtonThickness here.
  63     * Not requesting it give the ability to put wxButton with a spacing
  64     * as small as requested. However, if some button become a DefaultButton,
  65     * other buttons are no more aligned -- This is why we set
  66     * defaultButtonThickness of ALL buttons belonging to the same wxPanel,
  67     * in the ::SetDefaultButton method.
  68     */
  69     m_mainWidget = (WXWidget) XtVaCreateManagedWidget ("button",
  70         xmPushButtonWidgetClass,
  71         parentWidget,
  72         XmNfontList, fontList,
  73         XmNlabelString, text,
  74         //                  XmNdefaultButtonShadowThickness, 1, // See comment for wxButton::SetDefault
  75         NULL);
  76
  77     XmStringFree (text);
  78
  79     XtAddCallback ((Widget) m_mainWidget, XmNactivateCallback, (XtCallbackProc) wxButtonCallback,
  80         (XtPointer) this);
  81
  82     SetCanAddEventHandler(TRUE);
  83     AttachWidget (parent, m_mainWidget, (WXWidget) NULL, pos.x, pos.y, size.x, size.y);
  84
  85     ChangeBackgroundColour();
  86
  87     return TRUE;
  88 }
  89
  90 void wxButton::SetDefault()
  91 {
  92     wxWindow *parent = GetParent();
  93     wxPanel *panel = wxDynamicCast(panel, wxPanel);
  94     if ( panel )
  95         panel->SetDefaultItem(this);
  96
  97     // We initially do not set XmNdefaultShadowThickness, to have small buttons.
  98     // Unfortunately, buttons are now mis-aligned. We try to correct this
  99     // now -- setting this ressource to 1 for each button in the same row.
 100     // Because it's very hard to find wxButton in the same row,
 101     // correction is straighforward: we set resource for all wxButton
 102     // in this parent (but not sub panels)
 103     for (wxNode * node = parent->GetChildren().First (); node; node = node->Next ())
 104     {
 105         wxButton *item = (wxButton *) node->Data ();
 106         if (item->IsKindOf(CLASSINFO(wxButton)))
 107         {
 108             bool managed = XtIsManaged((Widget) item->GetMainWidget());
 109             if (managed)
 110                 XtUnmanageChild ((Widget) item->GetMainWidget());
 111
 112             XtVaSetValues ((Widget) item->GetMainWidget(),
 113                 XmNdefaultButtonShadowThickness, 1,
 114                 NULL);
 115
 116             if (managed)
 117                 XtManageChild ((Widget) item->GetMainWidget());
 118         }
 119     } // while
 120
 121     //  XtVaSetValues((Widget)handle, XmNshowAsDefault, 1, NULL);
 122     XtVaSetValues ((Widget) parent->GetMainWidget(), XmNdefaultButton, (Widget) GetMainWidget(), NULL);
 123 }
 124
 125 /* static */
 126 wxSize wxButton::GetDefaultSize()
 127 {
 128     // TODO: check font size as in wxMSW ?  MB
 129     //
 130     return wxSize(80,26);
 131 }
 132
 133 void wxButton::Command (wxCommandEvent & event)
 134 {
 135     ProcessCommand (event);
 136 }
 137
 138 void wxButtonCallback (Widget w, XtPointer clientData, XtPointer WXUNUSED(ptr))
 139 {
 140     if (!wxGetWindowFromTable(w))
 141         // Widget has been deleted!
 142         return;
 143
 144     wxButton *item = (wxButton *) clientData;
 145     wxCommandEvent event (wxEVT_COMMAND_BUTTON_CLICKED, item->GetId());
 146     event.SetEventObject(item);
 147     item->ProcessCommand (event);
 148 }
 149
 150 void wxButton::ChangeFont(bool keepOriginalSize)
 151 {
 152     wxWindow::ChangeFont(keepOriginalSize);
 153 }
 154
 155 void wxButton::ChangeBackgroundColour()
 156 {
 157     DoChangeBackgroundColour(m_mainWidget, m_backgroundColour, TRUE);
 158 }
 159
 160 void wxButton::ChangeForegroundColour()
 161 {
 162     wxWindow::ChangeForegroundColour();
 163 }
 164