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285 lines
8.2 KiB
C++
285 lines
8.2 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/generic/hyperlink.cpp
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// Purpose: Hyperlink control
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// Author: David Norris <danorris@gmail.com>, Otto Wyss
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// Modified by: Ryan Norton, Francesco Montorsi
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// Created: 04/02/2005
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// RCS-ID: $Id: hyperlink.cpp 62092 2009-09-24 16:46:50Z JS $
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// Copyright: (c) 2005 David Norris
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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//---------------------------------------------------------------------------
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// Pre-compiled header stuff
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//---------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_HYPERLINKCTRL
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//---------------------------------------------------------------------------
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// Includes
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//---------------------------------------------------------------------------
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#include "wx/hyperlink.h"
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#ifndef WX_PRECOMP
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#include "wx/utils.h" // for wxLaunchDefaultBrowser
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#include "wx/dcclient.h"
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#include "wx/menu.h"
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#include "wx/log.h"
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#include "wx/dataobj.h"
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#endif
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#include "wx/clipbrd.h"
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// ============================================================================
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// implementation
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// ============================================================================
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IMPLEMENT_DYNAMIC_CLASS(wxHyperlinkCtrl, wxControl)
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IMPLEMENT_DYNAMIC_CLASS(wxHyperlinkEvent, wxCommandEvent)
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_HYPERLINK)
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// reserved for internal use only
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#define wxHYPERLINKCTRL_POPUP_COPY_ID 16384
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const wxChar wxHyperlinkCtrlNameStr[] = wxT("hyperlink");
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// ----------------------------------------------------------------------------
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// wxHyperlinkCtrl
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// ----------------------------------------------------------------------------
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BEGIN_EVENT_TABLE(wxHyperlinkCtrl, wxControl)
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EVT_PAINT(wxHyperlinkCtrl::OnPaint)
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EVT_LEFT_DOWN(wxHyperlinkCtrl::OnLeftDown)
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EVT_LEFT_UP(wxHyperlinkCtrl::OnLeftUp)
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EVT_RIGHT_UP(wxHyperlinkCtrl::OnRightUp)
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EVT_MOTION(wxHyperlinkCtrl::OnMotion)
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EVT_LEAVE_WINDOW(wxHyperlinkCtrl::OnLeaveWindow)
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EVT_SIZE(wxHyperlinkCtrl::OnSize)
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// for the context menu
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EVT_MENU(wxHYPERLINKCTRL_POPUP_COPY_ID, wxHyperlinkCtrl::OnPopUpCopy)
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END_EVENT_TABLE()
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bool wxHyperlinkCtrl::Create(wxWindow *parent, wxWindowID id,
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const wxString& label, const wxString& url, const wxPoint& pos,
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const wxSize& size, long style, const wxString& name)
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{
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wxASSERT_MSG(!url.empty() || !label.empty(),
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wxT("Both URL and label are empty ?"));
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#ifdef __WXDEBUG__
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int alignment = (int)((style & wxHL_ALIGN_LEFT) != 0) +
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(int)((style & wxHL_ALIGN_CENTRE) != 0) +
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(int)((style & wxHL_ALIGN_RIGHT) != 0);
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wxASSERT_MSG(alignment == 1,
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wxT("Specify exactly one align flag!"));
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#endif
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if (!wxControl::Create(parent, id, pos, size, style, wxDefaultValidator, name))
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return false;
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// set to non empty strings both the url and the label
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if(url.empty())
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SetURL(label);
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else
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SetURL(url);
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if(label.empty())
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SetLabel(url);
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else
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SetLabel(label);
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m_rollover = false;
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m_clicking = false;
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m_visited = false;
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// colours
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m_normalColour = *wxBLUE;
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m_hoverColour = *wxRED;
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m_visitedColour = wxColour(wxT("#551a8b"));
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SetForegroundColour(m_normalColour);
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// by default the font of an hyperlink control is underlined
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wxFont f = GetFont();
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f.SetUnderlined(true);
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SetFont(f);
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SetInitialSize(size);
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return true;
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}
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wxSize wxHyperlinkCtrl::DoGetBestSize() const
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{
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int w, h;
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wxClientDC dc((wxWindow *)this);
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dc.SetFont(GetFont());
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dc.GetTextExtent(GetLabel(), &w, &h);
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wxSize best(w, h);
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CacheBestSize(best);
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return best;
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}
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void wxHyperlinkCtrl::SetNormalColour(const wxColour &colour)
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{
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m_normalColour = colour;
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if (!m_visited)
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{
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SetForegroundColour(m_normalColour);
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Refresh();
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}
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}
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void wxHyperlinkCtrl::SetVisitedColour(const wxColour &colour)
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{
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m_visitedColour = colour;
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if (m_visited)
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{
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SetForegroundColour(m_visitedColour);
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Refresh();
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}
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}
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void wxHyperlinkCtrl::DoContextMenu(const wxPoint &pos)
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{
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wxMenu *menuPopUp = new wxMenu(wxEmptyString, wxMENU_TEAROFF);
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menuPopUp->Append(wxHYPERLINKCTRL_POPUP_COPY_ID, _("&Copy URL"));
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PopupMenu( menuPopUp, pos );
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delete menuPopUp;
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}
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wxRect wxHyperlinkCtrl::GetLabelRect() const
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{
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// our best size is always the size of the label without borders
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wxSize c(GetClientSize()), b(GetBestSize());
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wxPoint offset;
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// the label is always centered vertically
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offset.y = (c.GetHeight()-b.GetHeight())/2;
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if (HasFlag(wxHL_ALIGN_CENTRE))
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offset.x = (c.GetWidth()-b.GetWidth())/2;
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else if (HasFlag(wxHL_ALIGN_RIGHT))
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offset.x = c.GetWidth()-b.GetWidth();
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else if (HasFlag(wxHL_ALIGN_LEFT))
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offset.x = 0;
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return wxRect(offset, b);
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}
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// ----------------------------------------------------------------------------
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// wxHyperlinkCtrl - event handlers
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// ----------------------------------------------------------------------------
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void wxHyperlinkCtrl::OnPaint(wxPaintEvent& WXUNUSED(event))
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{
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wxPaintDC dc(this);
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dc.SetFont(GetFont());
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dc.SetTextForeground(GetForegroundColour());
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dc.SetTextBackground(GetBackgroundColour());
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dc.DrawText(GetLabel(), GetLabelRect().GetTopLeft());
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}
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void wxHyperlinkCtrl::OnLeftDown(wxMouseEvent& event)
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{
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// the left click must start from the hyperlink rect
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m_clicking = GetLabelRect().Contains(event.GetPosition());
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}
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void wxHyperlinkCtrl::OnLeftUp(wxMouseEvent& event)
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{
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// the click must be started and ended in the hyperlink rect
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if (!m_clicking || !GetLabelRect().Contains(event.GetPosition()))
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return;
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SetForegroundColour(m_visitedColour);
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m_visited = true;
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m_clicking = false;
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// send the event
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wxHyperlinkEvent linkEvent(this, GetId(), m_url);
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if (!GetEventHandler()->ProcessEvent(linkEvent)) // was the event skipped ?
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if (!wxLaunchDefaultBrowser(m_url))
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wxLogWarning(wxT("Could not launch the default browser with url '%s' !"), m_url.c_str());
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}
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void wxHyperlinkCtrl::OnRightUp(wxMouseEvent& event)
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{
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if( GetWindowStyle() & wxHL_CONTEXTMENU )
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if ( GetLabelRect().Contains(event.GetPosition()) )
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DoContextMenu(wxPoint(event.m_x, event.m_y));
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}
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void wxHyperlinkCtrl::OnMotion(wxMouseEvent& event)
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{
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wxRect textrc = GetLabelRect();
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if (textrc.Contains(event.GetPosition()))
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{
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SetCursor(wxCursor(wxCURSOR_HAND));
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SetForegroundColour(m_hoverColour);
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m_rollover = true;
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Refresh();
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}
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else if (m_rollover)
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{
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SetCursor(*wxSTANDARD_CURSOR);
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SetForegroundColour(!m_visited ? m_normalColour : m_visitedColour);
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m_rollover = false;
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Refresh();
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}
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}
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void wxHyperlinkCtrl::OnLeaveWindow(wxMouseEvent& WXUNUSED(event) )
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{
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// NB: when the label rect and the client size rect have the same
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// height this function is indispensable to remove the "rollover"
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// effect as the OnMotion() event handler could not be called
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// in that case moving the mouse out of the label vertically...
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if (m_rollover)
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{
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SetCursor(*wxSTANDARD_CURSOR);
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SetForegroundColour(!m_visited ? m_normalColour : m_visitedColour);
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m_rollover = false;
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Refresh();
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}
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}
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void wxHyperlinkCtrl::OnPopUpCopy( wxCommandEvent& WXUNUSED(event) )
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{
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#if wxUSE_CLIPBOARD
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if (!wxTheClipboard->Open())
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return;
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wxTextDataObject *data = new wxTextDataObject( m_url );
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wxTheClipboard->SetData( data );
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wxTheClipboard->Close();
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#endif // wxUSE_CLIPBOARD
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}
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void wxHyperlinkCtrl::OnSize(wxSizeEvent& WXUNUSED(event))
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{
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// update the position of the label in the screen respecting
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// the selected align flag
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Refresh();
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}
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#endif // wxUSE_HYPERLINKCTRL
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