taskbar.h

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/*
 * Copyright 2003, 2004, 2005 Martin Fuchs
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */


 //
 // Explorer and Desktop clone
 //
 // taskbar.h
 //
 // Martin Fuchs, 16.08.2003
 //


//#include "shellhook.h"


#define CLASSNAME_TASKBAR       TEXT("MSTaskSwWClass")
#define TITLE_TASKBAR           TEXT("Running Applications")

#define IDC_FIRST_APP   0x2000

//#define TASKBAR_AT_TOP

#define TASKBUTTONWIDTH_MIN     38
#define TASKBUTTONWIDTH_MAX     160


#define IDW_TASKTOOLBAR 100


#define PM_GET_LAST_ACTIVE  (WM_APP+0x1D)


struct TaskBarEntry
{
    TaskBarEntry();

    int     _id;    // ID for WM_COMMAND
    HBITMAP _hbmp;
    int     _bmp_idx;
    int     _used;
    int     _btn_idx;
    String  _title;
    BYTE    _fsState;
};

struct TaskBarMap : public map<HWND, TaskBarEntry>
{
    ~TaskBarMap();

    iterator find_id(int id);
};


struct TaskBar : public Window
{
    typedef Window super;

    TaskBar(HWND hwnd);
    ~TaskBar();

    static HWND Create(HWND hwndParent);

protected:
    WindowHandle _htoolbar;
    TaskBarMap  _map;
    int         _next_id;
    WindowHandle _last_foreground_wnd;
    int         _last_btn_width;
    MINIMIZEDMETRICS _mmMetrics_org;

    const UINT WM_SHELLHOOK;

    LRESULT Init(LPCREATESTRUCT pcs);
    LRESULT WndProc(UINT nmsg, WPARAM wparam, LPARAM lparam);
    int     Command(int id, int code);
    int     Notify(int id, NMHDR* pnmh);

    void    ActivateApp(TaskBarMap::iterator it, bool can_minimize=true, bool can_restore=true);
    void    ShowAppSystemMenu(TaskBarMap::iterator it);

    static BOOL CALLBACK EnumWndProc(HWND hwnd, LPARAM lparam);

    void    Refresh();
    void    ResizeButtons();
};