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346
wxWidgets/src/unix/taskbarx11.cpp
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346
wxWidgets/src/unix/taskbarx11.cpp
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/////////////////////////////////////////////////////////////////////////
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// File: src/unix/taskbarx11.cpp
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// Purpose: wxTaskBarIcon class for common Unix desktops
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// Author: Vaclav Slavik
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// Modified by:
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// Created: 04/04/2003
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// RCS-ID: $Id: taskbarx11.cpp 53582 2008-05-12 23:54:34Z RD $
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// Copyright: (c) Vaclav Slavik, 2003
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////
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// NB: This implementation does *not* work with every X11 window manager.
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// Currently only GNOME 1.2 and KDE 1,2,3 methods are implemented here.
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// Freedesktop.org's System Tray specification is implemented in
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// src/gtk/taskbar.cpp and used from here under wxGTK.
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//
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// Thanks to Ian Campbell, author of XMMS Status Docklet, for publishing
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// KDE and GNOME 1.2 methods.
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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 wxHAS_TASK_BAR_ICON
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#include "wx/taskbar.h"
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#ifndef WX_PRECOMP
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#include "wx/log.h"
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#include "wx/frame.h"
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#include "wx/dcclient.h"
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#include "wx/statbmp.h"
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#include "wx/sizer.h"
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#include "wx/bitmap.h"
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#include "wx/image.h"
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#endif
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#ifdef __VMS
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#pragma message disable nosimpint
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#endif
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#include <X11/Xlib.h>
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#include <X11/Xatom.h>
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#ifdef __VMS
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#pragma message enable nosimpint
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#endif
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// ----------------------------------------------------------------------------
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// base class that implements toolkit-specific method:
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// ----------------------------------------------------------------------------
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#ifdef __WXGTK20__
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#include <gtk/gtk.h>
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#if GTK_CHECK_VERSION(2,1,0)
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#include "wx/gtk/taskbarpriv.h"
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#define TASKBAR_ICON_AREA_BASE_INCLUDED
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#endif
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#endif
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#ifndef TASKBAR_ICON_AREA_BASE_INCLUDED
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class WXDLLIMPEXP_ADV wxTaskBarIconAreaBase : public wxFrame
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{
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public:
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wxTaskBarIconAreaBase()
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: wxFrame(NULL, wxID_ANY, _T("systray icon"),
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wxDefaultPosition, wxDefaultSize,
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wxDEFAULT_FRAME_STYLE | wxFRAME_NO_TASKBAR |
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wxSIMPLE_BORDER | wxFRAME_SHAPED) {}
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bool IsProtocolSupported() const { return false; }
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};
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#endif
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// ----------------------------------------------------------------------------
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// toolkit dependent methods to set properties on helper window:
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// ----------------------------------------------------------------------------
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#if defined(__WXGTK__)
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#include <gdk/gdk.h>
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#include <gdk/gdkx.h>
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#include <gtk/gtk.h>
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#define GetDisplay() GDK_DISPLAY()
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#define GetXWindow(wxwin) GDK_WINDOW_XWINDOW((wxwin)->m_widget->window)
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#elif defined(__WXX11__) || defined(__WXMOTIF__)
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#include "wx/x11/privx.h"
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#define GetDisplay() ((Display*)wxGlobalDisplay())
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#define GetXWindow(wxwin) ((Window)(wxwin)->GetHandle())
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#else
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#error "You must define X11 accessors for this port!"
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#endif
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// ----------------------------------------------------------------------------
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// wxTaskBarIconArea is the real window that shows the icon:
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_ADV wxTaskBarIconArea : public wxTaskBarIconAreaBase
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{
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public:
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wxTaskBarIconArea(wxTaskBarIcon *icon, const wxBitmap &bmp);
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void SetTrayIcon(const wxBitmap& bmp);
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bool IsOk() { return true; }
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protected:
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void SetLegacyWMProperties();
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void OnSizeChange(wxSizeEvent& event);
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void OnPaint(wxPaintEvent& evt);
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void OnMouseEvent(wxMouseEvent& event);
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void OnMenuEvent(wxCommandEvent& event);
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wxTaskBarIcon *m_icon;
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wxPoint m_pos;
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wxBitmap m_bmp;
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DECLARE_EVENT_TABLE()
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};
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BEGIN_EVENT_TABLE(wxTaskBarIconArea, wxTaskBarIconAreaBase)
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EVT_SIZE(wxTaskBarIconArea::OnSizeChange)
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EVT_MOUSE_EVENTS(wxTaskBarIconArea::OnMouseEvent)
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EVT_MENU(wxID_ANY, wxTaskBarIconArea::OnMenuEvent)
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EVT_PAINT(wxTaskBarIconArea::OnPaint)
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END_EVENT_TABLE()
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wxTaskBarIconArea::wxTaskBarIconArea(wxTaskBarIcon *icon, const wxBitmap &bmp)
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: wxTaskBarIconAreaBase(), m_icon(icon), m_pos(0,0)
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{
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#if defined(__WXGTK20__) && defined(TASKBAR_ICON_AREA_BASE_INCLUDED)
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m_invokingWindow = icon;
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#endif
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// Set initial size to bitmap size (tray manager may and often will
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// change it):
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SetClientSize(wxSize(bmp.GetWidth(), bmp.GetHeight()));
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SetTrayIcon(bmp);
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if (!IsProtocolSupported())
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{
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wxLogTrace(_T("systray"),
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_T("using legacy KDE1,2 and GNOME 1.2 methods"));
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SetLegacyWMProperties();
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}
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}
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void wxTaskBarIconArea::SetTrayIcon(const wxBitmap& bmp)
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{
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m_bmp = bmp;
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// determine suitable bitmap size:
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wxSize winsize(GetClientSize());
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wxSize bmpsize(m_bmp.GetWidth(), m_bmp.GetHeight());
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wxSize iconsize(wxMin(winsize.x, bmpsize.x), wxMin(winsize.y, bmpsize.y));
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// rescale the bitmap to fit into the tray icon window:
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if (bmpsize != iconsize)
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{
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wxImage img = m_bmp.ConvertToImage();
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img.Rescale(iconsize.x, iconsize.y);
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m_bmp = wxBitmap(img);
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}
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wxRegion region;
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region.Union(m_bmp);
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// if the bitmap is smaller than the window, offset it:
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if (winsize != iconsize)
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{
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m_pos.x = (winsize.x - iconsize.x) / 2;
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m_pos.y = (winsize.y - iconsize.y) / 2;
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region.Offset(m_pos.x, m_pos.y);
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}
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// set frame's shape to correct value and redraw:
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SetShape(region);
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Refresh();
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}
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void wxTaskBarIconArea::SetLegacyWMProperties()
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{
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#ifdef __WXGTK__
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gtk_widget_realize(m_widget);
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#endif
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long data[1];
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// KDE 2 & KDE 3:
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Atom _KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR =
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XInternAtom(GetDisplay(), "_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR", False);
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data[0] = 0;
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XChangeProperty(GetDisplay(), GetXWindow(this),
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_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR,
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XA_WINDOW, 32,
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PropModeReplace, (unsigned char*)data, 1);
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// GNOME 1.2 & KDE 1:
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Atom KWM_DOCKWINDOW =
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XInternAtom(GetDisplay(), "KWM_DOCKWINDOW", False);
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data[0] = 1;
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XChangeProperty(GetDisplay(), GetXWindow(this),
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KWM_DOCKWINDOW,
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KWM_DOCKWINDOW, 32,
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PropModeReplace, (unsigned char*)data, 1);
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}
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void wxTaskBarIconArea::OnSizeChange(wxSizeEvent& WXUNUSED(event))
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{
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wxLogTrace(_T("systray"), _T("icon size changed to %i x %i"),
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GetSize().x, GetSize().y);
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// rescale or reposition the icon as needed:
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wxBitmap bmp(m_bmp);
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SetTrayIcon(bmp);
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}
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void wxTaskBarIconArea::OnPaint(wxPaintEvent& WXUNUSED(event))
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{
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wxPaintDC dc(this);
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dc.DrawBitmap(m_bmp, m_pos.x, m_pos.y, true);
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}
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void wxTaskBarIconArea::OnMouseEvent(wxMouseEvent& event)
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{
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wxEventType type = 0;
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wxEventType mtype = event.GetEventType();
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if (mtype == wxEVT_LEFT_DOWN)
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type = wxEVT_TASKBAR_LEFT_DOWN;
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else if (mtype == wxEVT_LEFT_UP)
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type = wxEVT_TASKBAR_LEFT_UP;
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else if (mtype == wxEVT_LEFT_DCLICK)
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type = wxEVT_TASKBAR_LEFT_DCLICK;
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else if (mtype == wxEVT_RIGHT_DOWN)
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type = wxEVT_TASKBAR_RIGHT_DOWN;
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else if (mtype == wxEVT_RIGHT_UP)
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type = wxEVT_TASKBAR_RIGHT_UP;
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else if (mtype == wxEVT_RIGHT_DCLICK)
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type = wxEVT_TASKBAR_RIGHT_DCLICK;
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else if (mtype == wxEVT_MOTION)
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type = wxEVT_TASKBAR_MOVE;
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else
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return;
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wxTaskBarIconEvent e(type, m_icon);
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m_icon->ProcessEvent(e);
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}
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void wxTaskBarIconArea::OnMenuEvent(wxCommandEvent& event)
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{
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m_icon->ProcessEvent(event);
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}
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// ----------------------------------------------------------------------------
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// wxTaskBarIcon class:
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// ----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxTaskBarIcon, wxEvtHandler)
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wxTaskBarIcon::wxTaskBarIcon() : m_iconWnd(NULL)
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{
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}
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wxTaskBarIcon::~wxTaskBarIcon()
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{
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if (m_iconWnd)
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{
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m_iconWnd->Disconnect(wxEVT_DESTROY, (wxObjectEventFunction)NULL,
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(wxObject*)NULL, this);
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RemoveIcon();
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}
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}
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bool wxTaskBarIcon::IsOk() const
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{
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return true;
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}
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bool wxTaskBarIcon::IsIconInstalled() const
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{
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return m_iconWnd != NULL;
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}
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// Destroy event from wxTaskBarIconArea
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void wxTaskBarIcon::OnDestroy(wxWindowDestroyEvent&)
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{
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// prevent crash if wxTaskBarIconArea is destroyed by something else,
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// for example if panel/kicker is killed
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m_iconWnd = NULL;
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}
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bool wxTaskBarIcon::SetIcon(const wxIcon& icon, const wxString& tooltip)
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{
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wxBitmap bmp;
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bmp.CopyFromIcon(icon);
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if (!m_iconWnd)
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{
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m_iconWnd = new wxTaskBarIconArea(this, bmp);
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if (m_iconWnd->IsOk())
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{
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m_iconWnd->Connect(wxEVT_DESTROY,
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wxWindowDestroyEventHandler(wxTaskBarIcon::OnDestroy),
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NULL, this);
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m_iconWnd->Show();
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}
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else
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{
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m_iconWnd->Destroy();
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m_iconWnd = NULL;
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return false;
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}
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}
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else
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{
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m_iconWnd->SetTrayIcon(bmp);
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}
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#if wxUSE_TOOLTIPS
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if (!tooltip.empty())
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m_iconWnd->SetToolTip(tooltip);
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else
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m_iconWnd->SetToolTip(NULL);
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#else
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wxUnusedVar(tooltip);
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#endif
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return true;
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}
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bool wxTaskBarIcon::RemoveIcon()
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{
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if (!m_iconWnd)
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return false;
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m_iconWnd->Destroy();
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m_iconWnd = NULL;
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return true;
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}
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bool wxTaskBarIcon::PopupMenu(wxMenu *menu)
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{
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if (!m_iconWnd)
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return false;
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m_iconWnd->PopupMenu(menu);
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return true;
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}
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#endif // wxHAS_TASK_BAR_ICON
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