//  Hello585.cpp

//  This program is an extension to the Hello program.
//  It demonstrates the use of controls and resources:  
//  buttons, menus, dialogs, and bitmaps.

//  Loosely based on examples in: 
//  Programming Windows 95 with MFC by Jeff Prosise,
//  Microsoft Press, 1996.

//  Mike Barnes

#include <afxwin.h>
#include "Hello585.h"
#include "resource.h"

CMyApp myApp;

BOOL CMyApp::InitInstance ()  {
  m_pMainWnd = new CMainWindow;
  m_pMainWnd->ShowWindow (m_nCmdShow);
  m_pMainWnd->UpdateWindow ();
  return TRUE;  
  }

// CMainWindow message map and member functions
// Message maps use macro expansion to setup message handlers.

BEGIN_MESSAGE_MAP (CMainWindow, CFrameWnd)
  ON_WM_CREATE()
  ON_WM_PAINT ()
  ON_WM_SIZE ()
  ON_WM_LBUTTONUP ()
  ON_COMMAND_RANGE (IDM_ARIAL, IDM_COURIER, OnFont)
  ON_COMMAND (IDM_USAGE, OnUsage)
  ON_COMMAND (IDM_ABOUT, OnAbout)
END_MESSAGE_MAP ()


// MainWindow constructor 
CMainWindow::CMainWindow () {
  HICON hIcon = AfxGetApp() -> LoadIcon(IDI_ICON1);
  // create main window, menu & load keyboard accelerators
  CRect rect;
  
  rect.SetRect(0, 0, minWidth, minHeight);  // (x,y, x1, y1)
  m_clientWidth = minWidth;
  m_clientHeight = minHeight; 
  Create (NULL, "Hello CS 585", WS_OVERLAPPEDWINDOW,
    rect, NULL, MAKEINTRESOURCE(IDR_MENU1));
  LoadAccelTable(MAKEINTRESOURCE(IDR_ACCELERATOR1));
  SetIcon(hIcon, TRUE);   // set application icon
  // get client rect after menu loaded

  // set up button pallet, and push buttons
  m_buttonPanel = new CPanelWindow (this);
  // create some fonts
  m_CourierFont.CreatePointFont(180, "Courier New", NULL);
  m_TimesFont.CreatePointFont(140, "Times New Roman", NULL);
  m_ArialFont.CreatePointFont(100, "Arial", NULL);
  // miscellaneous settings
  strcpy(message, "Click left button in client area.    ");  
  m_CurrentColor = 0;
  m_CurrentFont = IDM_ARIAL;
  }

void CMainWindow::OnPaint () {
  // get a paint device context for this window
  CPaintDC dc (this);
  CRect rect;
  GetClientRect(&rect);
  // subtract button pallette from client rect for text
  rect.SetRect(rect.left + palletteWidth,
    rect.top, rect.right, rect.bottom);
  dc.DrawText (message, -1, &rect,
    DT_SINGLELINE | DT_VCENTER | DT_CENTER ); 
  }

void CMainWindow::OnSize (UINT nType, int width, int height) {
  CRect rect;
  int padHeight, lastY1, lastY2;

  // MessageBox("On Size");  // for debugging
  // get new window size and compute height
  GetClientRect(&rect);
  if(((rect.bottom - rect.top) < minHeight) ||
    ((rect.right - rect.left) < minWidth)) 
      {
      MoveWindow(0, 0, minWidth, minHeight);
      m_clientHeight = minHeight - menuHeight;}
    else
      m_clientHeight = rect.bottom - rect.top;
  // change size of pallette window
  m_buttonPanel->MoveWindow(0, 0, palletteWidth, 
    m_clientHeight);
  // determine padding and setup 3 buttons
  padHeight = (m_clientHeight - palletteHeight) / 2;
  lastY1 = padHeight;
  lastY2 = lastY1 + buttonHeight;
  m_buttonPanel->m_ctlRed.MoveWindow(buttonX1, lastY1, buttonWidth, 
    buttonHeight);
  lastY1 = lastY2 + padY;
  lastY2 = lastY1 + buttonHeight;
  m_buttonPanel->m_ctlBlue.MoveWindow(buttonX1, lastY1, buttonWidth, 
    buttonHeight);
  lastY1 = lastY2 + padY;
  lastY2 = lastY1 + buttonHeight;
  m_buttonPanel->m_ctlGreen.MoveWindow(buttonX1, lastY1, buttonWidth, 
    buttonHeight);
  }

void CMainWindow::OnLButtonUp (UINT nFlags, CPoint point) {
  CClientDC dc (this);  // get a client DC not paint DC.
        switch(m_CurrentFont) {
    case IDM_ARIAL   : dc.SelectObject(&m_ArialFont); break; 
    case IDM_TIMES   : dc.SelectObject(&m_TimesFont); break;
    case IDM_COURIER : dc.SelectObject(&m_CourierFont);
    }
  dc.SetTextColor(crColors[m_CurrentColor]);
  dc.TextOut (point.x, point.y, "Hi CS 585!");
  }

void CMainWindow::OnFont (UINT nID) {
  // update font checked item status
  for (int i = IDM_ARIAL; i <= IDM_COURIER; i++)
    GetMenu()->CheckMenuItem(i, MF_UNCHECKED);
  GetMenu()->CheckMenuItem(nID, MF_CHECKED);
  m_CurrentFont = nID;   // store current font
  }

void CMainWindow::OnAbout () {
  CDialog aboutDlg(IDD_ABOUT_DIALOG, this); 
  aboutDlg.DoModal();
  }

void CMainWindow::OnUsage () {
  CDialog usageDlg(IDD_USAGE_DIALOG, this); 
  usageDlg.DoModal();
  }


// CPanel Message Map and Member Functions

BEGIN_MESSAGE_MAP (CPanelWindow, CWnd)
  ON_WM_PAINT()
  ON_CONTROL_RANGE(BN_CLICKED, IDC_RED, IDC_GREEN, OnButton)
 END_MESSAGE_MAP ()

CPanelWindow :: CPanelWindow(CMainWindow * myParent) {
  CRect rect;
  int padHeight, lastY1, lastY2;

  rect.SetRect(0, 0, palletteWidth, myParent->m_clientHeight - menuHeight);
  Create(NULL, "",WS_CHILD |WS_VISIBLE | WS_DLGFRAME, rect, 
    myParent, NULL);
  padHeight = (myParent->m_clientHeight - palletteHeight)/2;
  lastY1 = padHeight;
  lastY2 = padHeight + buttonHeight;
  rect.SetRect(buttonX1, lastY1, buttonX2, lastY2);
  m_ctlRed.Create("&Red", WS_CHILD | WS_VISIBLE, 
    rect,  this, IDC_RED);
  lastY1 = lastY2 + padY;
  lastY2 = lastY1 + buttonHeight;
  rect.SetRect(buttonX1, lastY1 , buttonX2, lastY2);
  m_ctlBlue.Create("&Blue", WS_CHILD | WS_VISIBLE,
    rect,  this, IDC_BLUE);
  lastY1 = lastY2 + padY;
  lastY2 = lastY1 + buttonHeight;
  rect.SetRect(buttonX1, lastY1 , buttonX2, lastY2);
  m_ctlGreen.Create("&Green", WS_CHILD | WS_VISIBLE,
    rect,  this, IDC_GREEN);
  }

void CPanelWindow::OnButton(UINT nID)  {
  // MessageBox("On Button clicked CPanelWindow");  // for debugging
  m_CurrentColor = nID - IDC_RED;
  }

void CPanelWindow::OnPaint () {
  CPaintDC dc (this);
  CRect rect;
  GetClientRect(&rect);
  dc.FillSolidRect(rect, crColors[3]);
  }