src/generic/clrpickerg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/clrpickerg.cpp
   3 // Purpose:     wxGenericColourButton class implementation
   4 // Author:      Francesco Montorsi (readapted code written by Vadim Zeitlin)
   5 // Modified by:
   6 // Created:     15/04/2006
   7 // Copyright:   (c) Vadim Zeitlin, Francesco Montorsi
   8 // Licence:     wxWindows licence
   9 ///////////////////////////////////////////////////////////////////////////////
  10
  11 // ============================================================================
  12 // declarations
  13 // ============================================================================
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 // For compilers that support precompilation, includes "wx.h".
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_COLOURPICKERCTRL
  27
  28 #include "wx/clrpicker.h"
  29 #include "wx/colordlg.h"
  30 #include "wx/dcmemory.h"
  31
  32
  33 // ============================================================================
  34 // implementation
  35 // ============================================================================
  36
  37 wxColourData wxGenericColourButton::ms_data;
  38 IMPLEMENT_DYNAMIC_CLASS(wxGenericColourButton, wxBitmapButton)
  39
  40 // ----------------------------------------------------------------------------
  41 // wxGenericColourButton
  42 // ----------------------------------------------------------------------------
  43
  44 bool wxGenericColourButton::Create( wxWindow *parent, wxWindowID id,
  45                         const wxColour &col, const wxPoint &pos,
  46                         const wxSize &size, long style,
  47                         const wxValidator& validator, const wxString &name)
  48 {
  49     m_bitmap = wxBitmap( 60, 13 );
  50
  51     // create this button
  52     if (!wxBitmapButton::Create( parent, id, m_bitmap, pos,
  53                            size, style | wxBU_AUTODRAW, validator, name ))
  54     {
  55         wxFAIL_MSG( wxT("wxGenericColourButton creation failed") );
  56         return false;
  57     }
  58
  59     // and handle user clicks on it
  60     Connect(GetId(), wxEVT_BUTTON,
  61             wxCommandEventHandler(wxGenericColourButton::OnButtonClick),
  62             NULL, this);
  63
  64     m_colour = col;
  65     UpdateColour();
  66     InitColourData();
  67
  68     return true;
  69 }
  70
  71 void wxGenericColourButton::InitColourData()
  72 {
  73     ms_data.SetChooseFull(true);
  74     unsigned char grey = 0;
  75     for (int i = 0; i < 16; i++, grey += 16)
  76     {
  77         // fill with grey tones the custom colors palette
  78         wxColour colour(grey, grey, grey);
  79         ms_data.SetCustomColour(i, colour);
  80     }
  81 }
  82
  83 void wxGenericColourButton::OnButtonClick(wxCommandEvent& WXUNUSED(ev))
  84 {
  85     // update the wxColouData to be shown in the dialog
  86     ms_data.SetColour(m_colour);
  87
  88     // create the colour dialog and display it
  89     wxColourDialog dlg(this, &ms_data);
  90     if (dlg.ShowModal() == wxID_OK)
  91     {
  92         ms_data = dlg.GetColourData();
  93         SetColour(ms_data.GetColour());
  94
  95         // fire an event
  96         wxColourPickerEvent event(this, GetId(), m_colour);
  97         GetEventHandler()->ProcessEvent(event);
  98     }
  99 }
 100
 101 void wxGenericColourButton::UpdateColour()
 102 {
 103     wxMemoryDC dc(m_bitmap);
 104     dc.SetPen( *wxTRANSPARENT_PEN );
 105     dc.SetBrush( wxBrush(m_colour) );
 106     dc.DrawRectangle( 0,0,m_bitmap.GetWidth(),m_bitmap.GetHeight() );
 107
 108     if ( HasFlag(wxCLRP_SHOW_LABEL) )
 109     {
 110         wxColour col( ~m_colour.Red(), ~m_colour.Green(), ~m_colour.Blue() );
 111         dc.SetTextForeground( col );
 112         dc.SetFont( GetFont() );
 113         dc.DrawText( m_colour.GetAsString(wxC2S_HTML_SYNTAX), 0, 0 );
 114     }
 115
 116     dc.SelectObject( wxNullBitmap );
 117     SetBitmapLabel( m_bitmap );
 118 }
 119
 120 wxSize wxGenericColourButton::DoGetBestSize() const
 121 {
 122     wxSize sz(wxBitmapButton::DoGetBestSize());
 123 #ifdef __WXMAC__
 124     sz.y += 6;
 125 #else
 126     sz.y += 2;
 127 #endif
 128     sz.x += 30;
 129     if ( HasFlag(wxCLRP_SHOW_LABEL) )
 130         return sz;
 131
 132     // if we have no label, then make this button a square
 133     // (like e.g. native GTK version of this control) ???
 134     // sz.SetWidth(sz.GetHeight());
 135     return sz;
 136 }
 137
 138 #endif      // wxUSE_COLOURPICKERCTRL