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Introduction to wxWidgets

, 25 Dec 2005 GPL3
A beginner's tutorial on wxWidgets for cross platform GUI development.
/* EyeCareFrame.cpp
 * 
 * Copyright (C) 3 September, 2005 Priyank Bolia
 * http://www.priyank.in
 * 
 * This code is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This code 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free
 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
 * MA 02111-1307, USA
 */

#include "eyecareframe.h"

BEGIN_EVENT_TABLE(CEyeCareFrame, wxFrame)
    EVT_MENU(ID_EXIT, CEyeCareFrame::OnExit)
    EVT_MENU(ID_CONFIG, CEyeCareFrame::OnConfig)
    EVT_MENU(ID_ABOUT, CEyeCareFrame::OnAbout)
	EVT_MENU(ID_HIDE, CEyeCareFrame::OnEsc)
	EVT_BUTTON(ID_WXBUTTON_HIDE, CEyeCareFrame::OnHideButton)
	EVT_TIMER(ID_MAINWINDOWTIMER, CEyeCareFrame::OnHideMainWindow)
	EVT_TIMER(ID_EYERELAX_TIMER, CEyeCareFrame::OnEyeRelaxTimer)
	EVT_TIMER(ID_EYEWASH_TIMER, CEyeCareFrame::OnEyeWashTimer)
	EVT_CLOSE(CEyeCareFrame::OnClose)
	EVT_ERASE_BACKGROUND(CEyeCareFrame::OnEraseBackground)
END_EVENT_TABLE()

CEyeCareFrame::CEyeCareFrame(void)
{
}

CEyeCareFrame::CEyeCareFrame( wxWindow *parent, wxWindowID id, const wxString &title, const wxPoint &position, const wxSize& size, long style )
    : wxFrame( parent, id, title, position, size, style)
{
    CreateGUIControls();
}

CEyeCareFrame::~CEyeCareFrame(void)
{
	m_pRelaxTimer->Stop();
	m_pWashTimer->Stop();
	m_pTaskBarIcon->RemoveIcon();
	delete m_pRelaxTimer;
	delete m_pWashTimer;
	delete m_pMainWindowTimer;
	delete m_pTaskBarIcon;
}

void CEyeCareFrame::OnClose(wxCloseEvent& event)
{
    // --> Don't use Close with a Frame,
    // use Destroy instead.
	m_pMainWindowTimer->Stop();
    this->Hide();
	m_pHeaderText->SetLabel(wxT("Welcome to Eye Care!"));
	m_pDetailText->SetLabel(wxT("This program will remind you at regular intervals \nto take care of your eyes and relax/wash them."));
}

void CEyeCareFrame::CreateGUIControls()
{
	m_pTaskBarIcon = NULL;
    menuSettings = new wxMenu;
    menuHelp = new wxMenu;
    menuSettings->Append( ID_CONFIG, "&Configuration", "Change Settings" );
    menuSettings->Append( ID_EXIT, "&Exit", "Exit the application" );
    menuHelp->Append( ID_ABOUT, "&About...", "About Eye Care" );

	menuBar = new wxMenuBar;
    menuBar->Append( menuSettings, "&Settings");
    menuBar->Append( menuHelp, "&Help" );

    SetMenuBar( menuBar );
    CreateStatusBar();
    SetStatusText( "Ready" );

	SetBackgroundColour(wxColor(236,233,216));
	m_pStaticBox = new wxStaticBox(this, ID_WXSTATICBOX, wxT(""), wxPoint(8,5), wxSize(252,162));
	m_buttonHIDE = new wxButton(this, ID_WXBUTTON_HIDE, wxT("HIDE"), wxPoint(14,125), wxSize(240,35), 0, wxDefaultValidator, wxT("WxButtonHIDE"));
	m_pBitmapEye = new wxStaticBitmap(this, ID_WXSTATICBITMAP_EYE, wxBitmap("IDB_BITMAP_EYE"), wxPoint(10, 13), wxSize(248, 38));
	m_buttonHIDE->SetFont(wxFont(14, wxSWISS, wxNORMAL,wxBOLD, FALSE, wxT("Arial")));
	m_buttonHIDE->SetDefault();
	m_pHeaderText = new wxStaticText(this, ID_WXSTATICTEXT_HEADER, wxT("Welcome to Eye Care!"), wxPoint(19, 60), wxSize(232, 20), wxALIGN_LEFT);
	m_pHeaderText->SetFont(wxFont(12, wxSWISS, wxNORMAL,wxBOLD, FALSE, wxT("Times")));
	m_pDetailText = new wxStaticText(this, ID_WXSTATICTEXT_DETAIL, wxT("This program will remind you at regular intervals to take care of your eyes and relax/wash them."), wxPoint(20, 85), wxSize(232, 40), wxALIGN_LEFT);
	this->Center();
	// set the icon
    // this icon type doesn't seem to work in Linux
    #ifdef WIN32
        this->SetIcon(wxIcon("IDI_ICON_APP"));
    #endif

	UpdateConfig();
	m_pTaskBarIcon = new CEyeCareTaskBarIcon(this);
	if(m_bHideTrayIcon == false)
		m_pTaskBarIcon->SetIcon(wxICON(IDI_ICON_APP), wxT("Eye Care"));

	m_pMainWindowTimer = new wxTimer(this, ID_MAINWINDOWTIMER);
	m_pMainWindowTimer->Start(15000);
	m_pRelaxTimer = new wxTimer(this, ID_EYERELAX_TIMER);
	m_pWashTimer = new wxTimer(this, ID_EYEWASH_TIMER);
	m_pRelaxTimer->Start(m_nRelaxTime);
	m_pWashTimer->Start(m_nWashTime);

	wxAcceleratorEntry entries[1];
	entries[0].Set(wxACCEL_NORMAL,  (int) 27, ID_HIDE);
	wxAcceleratorTable accel(1, entries);
	this->SetAcceleratorTable(accel);

#ifdef WIN32
	HMENU pSysMenu = (HMENU )GetSystemMenu((HWND)this->m_hWnd,  FALSE);
	if (pSysMenu != NULL)
	{
		AppendMenu(pSysMenu, MF_SEPARATOR, NULL, NULL);
		AppendMenu(pSysMenu, MF_STRING|MF_BYPOSITION, ID_ABOUT, "&About...");
	}
#endif
}

void CEyeCareFrame::OnHideButton(wxCommandEvent& WXUNUSED(event))
{
	OnHide();
}

void CEyeCareFrame::OnExit(wxCommandEvent& WXUNUSED(event))
{
	m_pMainWindowTimer->Stop();
	this->Destroy();
}

void CEyeCareFrame::OnConfig(wxCommandEvent& WXUNUSED(event))
{
	CConfigDialog *dlgConfig = new CConfigDialog(this, IDD_EYECARE_CONFIG_DIALOG);
	if(wxID_OK == dlgConfig->ShowModal())
	{
		UpdateConfig();
	}
	delete dlgConfig;
}

void CEyeCareFrame::ExitApp(void)
{
	m_pMainWindowTimer->Stop();
	this->Destroy();
}

void CEyeCareFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
	ShowAboutDialog();
}

void CEyeCareFrame::OnEsc(wxCommandEvent& WXUNUSED(event))
{
	OnHide();
}

void CEyeCareFrame::ShowAboutDialog(void)
{
	CAboutDialog *dlgAbout = new CAboutDialog(this, IDD_EYECARE_ABOUT_DIALOG, "About", wxDefaultPosition, wxSize(250, 150), wxDEFAULT_DIALOG_STYLE); 
	dlgAbout->SetText(wxT("Eye Care Ver 1.01"));
	dlgAbout->ShowModal();
	delete dlgAbout;
}

void CEyeCareFrame::OnHideMainWindow(wxTimerEvent& WXUNUSED(event))
{
	this->Hide();
	if(m_pHeaderText->GetLabel() == wxT("Eye relaxing time...") || m_pHeaderText->GetLabel() == wxT("Eye washing time..."))
		wxBell();
	m_pHeaderText->SetLabel(wxT("Welcome to Eye Care!"));
	m_pDetailText->SetLabel(wxT("This program will remind you at regular intervals \nto take care of your eyes and relax/wash them."));
	m_pMainWindowTimer->Stop();
}

void CEyeCareFrame::ShowMainWindow(bool bShow)
{
	if(bShow)
	{
		m_pMainWindowTimer->Start(30000);
		this->Show();
		SetBackgroundColour(wxColor(236,233,216));
	}
	else
	{
		m_pMainWindowTimer->Stop();
		this->Hide();
		m_pHeaderText->SetLabel(wxT("Welcome to Eye Care!"));
		m_pDetailText->SetLabel(wxT("This program will remind you at regular intervals \nto take care of your eyes and relax/wash them."));
	}
}

void CEyeCareFrame::OnEyeRelaxTimer(wxTimerEvent& WXUNUSED(event))
{
	m_pHeaderText->SetLabel(wxT("Eye relaxing time..."));
	m_pDetailText->SetLabel(wxT("Now move your eyes away, from the monitor \nand view some distant object for 15 seconds."));
	ShowMainWindow(true);
	m_pRelaxTimer->Stop();
	m_pRelaxTimer->Start(m_nRelaxTime);
}

void CEyeCareFrame::OnEyeWashTimer(wxTimerEvent& WXUNUSED(event))
{
	m_pHeaderText->SetLabel(wxT("Eye washing time..."));
	m_pDetailText->SetLabel(wxT("Now move to the wash room, and gently wash \nyour eyes with water to prevent dryness."));
	ShowMainWindow(true);
	m_pRelaxTimer->Stop();
	m_pRelaxTimer->Start(m_nRelaxTime);
	m_pWashTimer->Stop();
	m_pWashTimer->Start(m_nWashTime);
}

void CEyeCareFrame::RelaxTimerSwitch(bool bON)
{
	if(bON)
	{
		m_pRelaxTimer->Start(m_nRelaxTime);
		m_pTaskBarIcon->SetIcon(wxICON(IDI_ICON_APP), wxT("Eye Care"));
	}
	else
	{
		m_pRelaxTimer->Stop();
		m_pTaskBarIcon->SetIcon(wxICON(IDI_ICON_TEARS), wxT("Eye Care"));
	}
}

bool CEyeCareFrame::IsTimersRunning(void)
{
	return (m_pRelaxTimer->IsRunning()) ? true:false;
}

void CEyeCareFrame::UpdateConfig(void)
{
	m_nRelaxTime = CConfigDialog::GetRelaxTime();
	m_nWashTime = CConfigDialog::GetWashTime();
	m_bStayOnTop = CConfigDialog::IsStayOnTop();
	m_bHideTrayIcon = CConfigDialog::IsHideIcon();
	if(m_bHideTrayIcon == false && m_pTaskBarIcon)
		m_pTaskBarIcon->SetIcon(wxICON(IDI_ICON_APP), wxT("Eye Care"));
	else if(m_pTaskBarIcon)
		m_pTaskBarIcon->RemoveIcon();
	if(m_bStayOnTop == true)
		SetWindowStyleFlag(MAINFrame_STYLE);
	else
		SetWindowStyleFlag(wxCAPTION | wxSYSTEM_MENU | wxMINIMIZE_BOX | wxCLOSE_BOX);
}

void CEyeCareFrame::OnEraseBackground(wxEraseEvent& event)
{
	SetBackgroundColour(wxColor(236,233,216));
	event.Skip();
}

void CEyeCareFrame::OnHide(void)
{
	m_pMainWindowTimer->Stop();
	this->Hide();
	m_pHeaderText->SetLabel(wxT("Welcome to Eye Care!"));
	m_pDetailText->SetLabel(wxT("This program will remind you at regular intervals \nto take care of your eyes and relax/wash them."));
}

#ifdef WIN32
WXLRESULT CEyeCareFrame::MSWWindowProc ( WXUINT message, WXWPARAM wParam, WXLPARAM lParam )
{
        switch ( message )
        {
		case WM_SYSCOMMAND:
			if(wParam == ID_ABOUT)
			{
				ShowAboutDialog();
			}
			break;
        }
        return wxFrame::MSWWindowProc ( message, wParam, lParam );
}
#endif

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License

This article, along with any associated source code and files, is licensed under The GNU General Public License (GPLv3)

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About the Author

Priyank Bolia
Software Developer (Senior)
India India
No Biography provided

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