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PaletteDlg.cpp

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// MathGUI = a WYSIWYG equation editor + a powerful math engine      //
// Copyright (C) 2003 by Francesco Montorsi                          //
//                                                                   //
// This library is free software; you can redistribute it and/or     //
// modify it under the terms of the GNU Lesser General Public        //
// License as published by the Free Software Foundation; either      //
// version 2.1 of the License, or (at your option) any later         //
// version.                                                          //
//                                                                   //
// This library is distributed in the hope that it will be useful,   //
// but WITHOUT ANY WARRANTY; without even the implied warranty of    //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the      //
// GNU Lesser General Public License for more details.               //
//                                                                   //
// You should have received a copy of the GNU Lesser General Public  //
// License along with this program; if not, write to the Free        //
// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,   //
// MA 02111-1307, USA.                                               //
//                                                                   //
// For any comment, suggestion or feature request, please contact    //
// the administrator of the project at frm@users.sourceforge.net     //
//                                                                   //



// optimization for GCC compiler
#ifdef __GNUG__
   #pragma implementation "PaletteDlg.h"
#endif

// includes
#include "mg/mgprec.h"

#ifndef mgPRECOMP
   #include "mg/GUIUtils.h"
   #include "mg/PaletteDlg.h"
#ifdef mgUSE_PALETTEFRM
   #include <wx/palettefrm.h>    // a wxWidgets extension
#endif
#endif




IMPLEMENT_CLASS(mgButtonListPanel, wxPanel)
BEGIN_EVENT_TABLE(mgButtonListPanel, wxPanel)

   // used to shrink or expand the button's fonts
   EVT_SIZE(mgButtonListPanel::OnSize)

END_EVENT_TABLE()




// ----------------------
// mgButtonListPanel
// ----------------------

void mgButtonListPanel::AddButtonsToSizer(int idoffset, int num, wxSize sz)
{
   for (int i=0; i < num; i++) {

      // create the button
/*    wxButton *btn = new wxPaletteButton(this, m_pClientWnd,
         GetBaseID()+idoffset+i, GetButtonLabel(i), wxDefaultPosition, sz, wxBU_EXACTFIT);
*/
      wxButton *btn = new wxButton(this, GetBaseID()+idoffset+i,  
            GetButtonLabel(i), wxDefaultPosition, sz, wxBU_EXACTFIT);
   
      // set some attributes of the button
      btn->SetFont(m_fButtons);
#ifndef __WXX11__
      btn->SetToolTip(GetButtonTooltip(i));
#endif
      
      // add it to the sizer
      GetSizer()->Add(btn, 1, wxGROW);
   }
}

wxSize mgButtonListPanel::FindBiggestLetter(const wxString &str)
{
   wxScreenDC dc;
   int w = -1, h = -1;

   // scan the entire string
   dc.SetFont(m_fButtons);
   for (int i=0; i < (int)str.Len(); i++) {

      // and using the button font, retrieve width & height
      int width, height, d, e;
      dc.GetTextExtent(str.GetChar(i), &width, &height, &d, &e);

      // choose maximum widths & heights
      w = mcMAX(w, (int)((width/100.)*100.));
      h = mcMAX(h, (int)(((height+d+e)/100.)*100.));
   }

   return wxSize(w, h);
}

void mgButtonListPanel::BuildPanel(int border, int proportion)
{
   int i, max;

   // set all the rows as growable
   wxFlexGridSizer *p = (wxFlexGridSizer *)GetSizer();
   wxASSERT(p != NULL);
   
   for (i=0, max=GetRowCount(); i <= max; i++)
      p->AddGrowableRow(i);
   for (i=0, max=GetColCount(); i <= max; i++)
      p->AddGrowableCol(i);

#if wxCHECK_VERSION(2, 5, 1)
   p->SetFlexibleDirection(wxBOTH);
#endif
   

   p->SetSizeHints(this);
   if (border != 0) {
      
      // set up global sizer as a wxBoxSizer containing the sizer we
      // used in the previous operations.
      // this is done to allow a certain border to be set around the
      // gridsizer only (and not around all buttons).
      wxBoxSizer *global = new wxBoxSizer(wxHORIZONTAL);
      
      //global->Add(2, 1, 1, wxGROW);
      global->Add(p, proportion, wxGROW | wxALL, border);
      //global->Add(2, 1, 1, wxGROW);
      
      // if we ask SetSizer() to delete the old size (using TRUE)
      // we would make invalid the wxFlexGridSizer
      SetSizer(global, FALSE);
      global->SetSizeHints(this);      // set size hints to honour minimum size
      //SetSize(global->GetMinSize());
   }
}

void mgButtonListPanel::BuildSizer()
{
   // create the sizer & init it
   SetSizer(new wxFlexGridSizer(GetRowCount(), GetColCount(), 1, 1));
}

int mgButtonListPanel::GetButtonID(wxCommandEvent &ev) const
{
   // just a simple op
   return ev.GetId() - GetBaseID();
}

void mgButtonListPanel::AddHorizontalSpacer()
{
   //wxFlexGridSizer *p = (wxFlexGridSizer *)GetSizer();

   // create a new sizer in the next available entry of the m_pSizerList
   // array and then set it as the current sizer to use...
   //BuildSizer();
}

void mgButtonListPanel::SetFontButtonPointSize(int pointsize)
{
   m_fButtons.SetPointSize(pointsize);

   wxWindow *firstchild = FindWindowById(GetBaseID(), this);
   if (firstchild) {
      wxSize sz = firstchild->GetSize();
      int max = mcMAX(sz.GetWidth(), sz.GetHeight());
      m_fButtonFontRatio = ((float)pointsize)/((float)max);
   }
}

void mgButtonListPanel::UpdateFontButton()
{
   wxWindow *firstchild = FindWindowById(GetBaseID(), this);
   if (firstchild) {
      wxSize sz = firstchild->GetSize();
      int max = mcMAX(sz.GetWidth(), sz.GetHeight());

      // update font button size
      m_fButtons.SetPointSize((int)(max*m_fButtonFontRatio));
   }

   // update all button's size
   for (int i=0; i < (int)GetChildren().GetCount(); i++) {
      wxWindowListNode *n = GetChildren().Item(i);

      if (n) n->GetData()->SetFont(m_fButtons);
   }
}

void mgButtonListPanel::OnSize(wxSizeEvent &ev)
{
   // update the font of the button making it bigger or smaller
   if (m_bEnableFontButtonUpdate)
      UpdateFontButton();

   // let other event handlers process this event
   ev.Skip();
}

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