src/msw/stattext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/stattext.cpp
   3 // Purpose:     wxStaticText
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "stattext.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_STATTEXT
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/event.h"
  27 #include "wx/app.h"
  28 #include "wx/brush.h"
  29 #endif
  30
  31 #include "wx/stattext.h"
  32 #include "wx/msw/private.h"
  33 #include <stdio.h>
  34
  35 IMPLEMENT_DYNAMIC_CLASS(wxStaticText, wxControl)
  36
  37 bool wxStaticText::Create(wxWindow *parent, wxWindowID id,
  38            const wxString& label,
  39            const wxPoint& pos,
  40            const wxSize& size,
  41            long style,
  42            const wxString& name)
  43 {
  44   SetName(name);
  45   if (parent) parent->AddChild(this);
  46
  47   SetBackgroundColour(parent->GetBackgroundColour()) ;
  48   SetForegroundColour(parent->GetForegroundColour()) ;
  49
  50   if ( id == -1 )
  51     m_windowId = (int)NewControlId();
  52   else
  53   m_windowId = id;
  54
  55   int x = pos.x;
  56   int y = pos.y;
  57   int width = size.x;
  58   int height = size.y;
  59
  60   m_windowStyle = style;
  61
  62   long msStyle = WS_CHILD | WS_VISIBLE;
  63
  64   if ( m_windowStyle & wxCLIP_SIBLINGS )
  65     msStyle |= WS_CLIPSIBLINGS;
  66   if (m_windowStyle & wxALIGN_CENTRE)
  67     msStyle |= SS_CENTER;
  68   else if (m_windowStyle & wxALIGN_RIGHT)
  69     msStyle |= SS_RIGHT;
  70   else
  71     msStyle |= SS_LEFT;
  72
  73   // Even with extended styles, need to combine with WS_BORDER
  74   // for them to look right.
  75   if ( wxStyleHasBorder(m_windowStyle) )
  76     msStyle |= WS_BORDER;
  77
  78   m_hWnd = (WXHWND)::CreateWindowEx(MakeExtendedStyle(m_windowStyle), wxT("STATIC"), (const wxChar *)label,
  79                          msStyle,
  80                          0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
  81                          wxGetInstance(), NULL);
  82
  83   wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create static ctrl") );
  84
  85   SubclassWin(m_hWnd);
  86
  87   wxControl::SetFont(parent->GetFont());
  88   SetSize(x, y, width, height);
  89
  90   return TRUE;
  91 }
  92
  93 wxSize wxStaticText::DoGetBestSize() const
  94 {
  95     wxString text(wxGetWindowText(GetHWND()));
  96
  97     int widthTextMax = 0, widthLine,
  98         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
  99
 100     wxString curLine;
 101     for ( const wxChar *pc = text; ; pc++ ) {
 102         if ( *pc == wxT('\n') || *pc == wxT('\0') ) {
 103             if ( !curLine ) {
 104                 // we can't use GetTextExtent - it will return 0 for both width
 105                 // and height and an empty line should count in height
 106                 // calculation
 107                 if ( !heightLineDefault )
 108                     heightLineDefault = heightLine;
 109                 if ( !heightLineDefault )
 110                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
 111
 112                 heightTextTotal += heightLineDefault;
 113             }
 114             else {
 115                 GetTextExtent(curLine, &widthLine, &heightLine);
 116                 if ( widthLine > widthTextMax )
 117                     widthTextMax = widthLine;
 118                 heightTextTotal += heightLine;
 119             }
 120
 121             if ( *pc == wxT('\n') ) {
 122                curLine.Empty();
 123             }
 124             else {
 125                // the end of string
 126                break;
 127             }
 128         }
 129         else {
 130             curLine += *pc;
 131         }
 132     }
 133
 134     return wxSize(widthTextMax, heightTextTotal);
 135 }
 136
 137 void wxStaticText::DoSetSize(int x, int y, int w, int h, int sizeFlags)
 138 {
 139     // we need to refresh the window after changing its size as the standard
 140     // control doesn't always update itself properly
 141     wxStaticTextBase::DoSetSize(x, y, w, h, sizeFlags);
 142
 143     Refresh();
 144 }
 145
 146 void wxStaticText::SetLabel(const wxString& label)
 147 {
 148     wxStaticTextBase::SetLabel(label);
 149
 150     // adjust the size of the window to fit to the label unless autoresizing is
 151     // disabled
 152     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 153     {
 154         DoSetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
 155     }
 156 }
 157
 158
 159 bool wxStaticText::SetFont(const wxFont& font)
 160 {
 161     bool ret = wxControl::SetFont(font);
 162
 163     // adjust the size of the window to fit to the label unless autoresizing is
 164     // disabled
 165     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 166     {
 167         DoSetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
 168     }
 169
 170     return ret;
 171 }
 172
 173 long wxStaticText::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
 174 {
 175     // Ensure that static items get messages. Some controls don't like this
 176     // message to be intercepted (e.g. RichEdit), hence the tests.
 177     // Messes up display with Windows XP, apparently, so have to
 178     // do explicit hit-testing in wxWindowMSW.
 179 #if 0
 180     if (nMsg == WM_NCHITTEST)
 181         return (long)HTCLIENT;
 182 #endif
 183     return wxWindow::MSWWindowProc(nMsg, wParam, lParam);
 184 }
 185 #endif // wxUSE_STATTEXT