+///////////////////////////////////////////////////////////////////////////////
+// Name: src/generic/tipwin.cpp
+// Purpose: implementation of wxTipWindow
+// Author: Vadim Zeitlin
+// Modified by:
+// Created: 10.09.00
+// RCS-ID: $Id$
+// Copyright: (c) 2000 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
+// Licence: wxWindows license
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#ifdef __GNUG__
+ #pragma implementation "tipwin.h"
+#endif
+
+// For compilers that support precompilatixon, includes "wx/wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#ifndef WX_PRECOMP
+ #include "wx/dcclient.h"
+#endif // WX_PRECOMP
+
+#include "wx/tipwin.h"
+
+// ----------------------------------------------------------------------------
+// constants
+// ----------------------------------------------------------------------------
+
+static const wxCoord TEXT_MARGIN_X = 3;
+static const wxCoord TEXT_MARGIN_Y = 3;
+
+// ============================================================================
+// implementation
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// event tables
+// ----------------------------------------------------------------------------
+
+BEGIN_EVENT_TABLE(wxTipWindow, wxFrame)
+ EVT_PAINT(wxTipWindow::OnPaint)
+
+ EVT_LEFT_DOWN(wxTipWindow::OnMouseClick)
+ EVT_RIGHT_DOWN(wxTipWindow::OnMouseClick)
+ EVT_MIDDLE_DOWN(wxTipWindow::OnMouseClick)
+END_EVENT_TABLE()
+
+// ----------------------------------------------------------------------------
+// wxTipWindow
+// ----------------------------------------------------------------------------
+
+wxTipWindow::wxTipWindow(wxWindow *parent,
+ const wxString& text,
+ wxCoord maxLength)
+ : wxFrame(parent, -1, _T(""),
+ wxDefaultPosition, wxDefaultSize,
+ wxNO_BORDER | wxFRAME_FLOAT_ON_PARENT)
+{
+ // set colours
+ SetForegroundColour(*wxBLACK);
+ SetBackgroundColour(wxColour(0xc3ffff));
+
+ // set position and size
+ int x, y;
+ wxGetMousePosition(&x, &y);
+ Move(x, y + 20);
+
+ Adjust(text, maxLength);
+
+ // capture mouse as we want to dismiss the window when it is clicked
+ CaptureMouse();
+
+ Show(TRUE);
+}
+
+void wxTipWindow::Adjust(const wxString& text, wxCoord maxLength)
+{
+ wxClientDC dc(this);
+ dc.SetFont(GetFont());
+
+ // calculate the length: we want each line be no longer than maxLength
+ // pixels and we only break lines at words boundary
+ wxString current;
+ wxCoord height, width,
+ widthMax = 0;
+ m_heightLine = 0;
+
+ bool breakLine = FALSE;
+ for ( const wxChar *p = text.c_str(); ; p++ )
+ {
+ if ( *p == _T('\n') || *p == _T('\0') )
+ {
+ dc.GetTextExtent(current, &width, &height);
+ if ( width > widthMax )
+ widthMax = width;
+
+ if ( height > m_heightLine )
+ m_heightLine = height;
+
+ m_textLines.Add(current);
+
+ if ( !*p )
+ {
+ // end of text
+ break;
+ }
+
+ current.clear();
+ breakLine = FALSE;
+ }
+ else if ( breakLine && (*p == _T(' ') || *p == _T('\t')) )
+ {
+ // word boundary - break the line here
+ m_textLines.Add(current);
+ current.clear();
+ breakLine = FALSE;
+ }
+ else // line goes on
+ {
+ current += *p;
+ dc.GetTextExtent(current, &width, &height);
+ if ( width > maxLength )
+ breakLine = TRUE;
+
+ if ( width > widthMax )
+ widthMax = width;
+
+ if ( height > m_heightLine )
+ m_heightLine = height;
+ }
+ }
+
+ // take into account the border size and the margins
+ SetClientSize(2*(TEXT_MARGIN_X + 1) + widthMax,
+ 2*(TEXT_MARGIN_Y + 1) + m_textLines.GetCount()*m_heightLine);
+}
+
+void wxTipWindow::OnPaint(wxPaintEvent& event)
+{
+ wxPaintDC dc(this);
+
+ wxRect rect;
+ wxSize size = GetClientSize();
+ rect.width = size.x;
+ rect.height = size.y;
+
+ // first filll the background
+ dc.SetBrush(wxBrush(GetBackgroundColour(), wxSOLID));
+ dc.SetPen(*wxBLACK_PEN);
+ dc.DrawRectangle(rect);
+
+ // and then draw the text line by line
+ dc.SetFont(GetFont());
+
+ wxPoint pt;
+ pt.x = TEXT_MARGIN_X;
+ pt.y = TEXT_MARGIN_Y;
+ size_t count = m_textLines.GetCount();
+ for ( size_t n = 0; n < count; n++ )
+ {
+ dc.DrawText(m_textLines[n], pt);
+
+ pt.y += m_heightLine;
+ }
+}
+
+void wxTipWindow::OnMouseClick(wxMouseEvent& event)
+{
+ ReleaseMouse();
+
+ Close();
+}
projects / wxWidgets.git / commitdiff
