src/widgets.cpp

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/*
* Copyright (c) 2006 by Kirill Kolodyazhniy.
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/

#include "stdinc.h"
#ifdef _MSC_VER
#include <dbghelp.h>
#endif
#include <tchar.h>
#include <assert.h>
#include "icon.h"
#include "eventhandler.h"
#include "menu.h"
#include "widget.h"
#include "widgets.h"
#include "exception.h"
namespace MWidgets
{

        /*******************************************************************************/
        Widgets* Widgets::m_pSelf=NULL;
        /*******************************************************************************/
        void Widgets::Init(Icon* pBigIcon,Icon* pSmallIcon)
        {
                if(m_pSelf==NULL)
                        m_pSelf=new Widgets();
                else
                        EXCEPT("Widgets allready initialized!");

                InitCommonControls();

                WNDCLASSEX wc;
                wc.cbSize = sizeof(WNDCLASSEX);

                HINSTANCE m_hInstance=GetModuleHandle(NULL);

                if(GetClassInfoEx(m_hInstance,"MicroWidget",&wc)==FALSE)
                {
                        wc.style =0;
                        wc.lpfnWndProc = Widget::WindowProcedure;
                        wc.cbClsExtra = 0;
                        wc.cbWndExtra = 0;
                        wc.hInstance = m_hInstance;
                        if(pBigIcon)
                                wc.hIcon = pBigIcon->GetHICON();
                        else
                                wc.hIcon = NULL;
                        wc.hCursor = LoadCursor(NULL,IDC_ARROW);
                        wc.hbrBackground = CreateSolidBrush(GetSysColor (COLOR_MENU));
                        wc.lpszMenuName = NULL;
                        wc.lpszClassName = "MicroWidget";
                        if(pSmallIcon)
                                wc.hIconSm = pSmallIcon->GetHICON();
                        else
                                wc.hIconSm = NULL;

                        //Register main window class
                        m_pSelf->m_aWidget=RegisterClassEx(&wc);
                        if(!m_pSelf->m_aWidget)
                        {
                                EXCEPT("RegisterClassEx");
                        };
                }
        };
        /*******************************************************************************/
        Widgets* Widgets::Instance()
        {
                try
                {
                        if(m_pSelf==NULL)
                                EXCEPT("Windgets are not initialized!");
                        return m_pSelf;
                }
                catch(Exception e)
                {
                        CATCHEXCEPT(e,"Widgets::Instance");
                };
        };
        /*******************************************************************************/
        Widgets::Widgets()
        {
                m_aWidget=0;
                count=0;
                uniqueId=0;
                running=false;
        };
        /*******************************************************************************/
        Widgets::~Widgets()
        {
        }
        /*******************************************************************************/
        void Widgets::AddWidget()
        {
                count++;
        };
        /*******************************************************************************/
        void Widgets::DelWidget()
        {
                count--;
        };
        /*******************************************************************************/
        void Widgets::Run()
        {
                if(!running)
                {
                        running=true;
                        MSG msg;
                        // Main message loop:
                        while(count>0)
                        {
                                if(PeekMessage( &msg, NULL, 0, 0,PM_REMOVE))
                                {
                                        TranslateMessage(&msg);
                                        DispatchMessage(&msg);
                                }
                        }
                        running=false;
                }
        };
        /*******************************************************************************/
        unsigned int Widgets::GetNewId()
        {
                uniqueId++;
                return uniqueId;
        };
        /*******************************************************************************/
        void Widgets::Destroy()
        {
                try
                {
                        if(m_pSelf)
                        {
                                if(m_pSelf->count<=0)
                                        delete m_pSelf;
                                else
                                        EXCEPT("There are some widgets!");
                        }
                }
                catch(Exception e)
                {
                        CATCHEXCEPT(e,"Widgets::Destroy");
                };
        };
        /*******************************************************************************/
        ATOM Widgets::GetAtom()
        {
                return m_aWidget;
        };
        /*******************************************************************************/
};

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