IconDisplay.c

/*
    File:       IconDisplay.c
 
    Contains:   Demonstartion of manual drawing from icon resources to an offscreen buffer,
                then onscreen blitting. 
 
    Written by:     
 
    Copyright:  Copyright © 1999 by Apple Computer, Inc., All Rights Reserved.
 
                You may incorporate this Apple sample source code into your program(s) without
                restriction. This Apple sample source code has been provided "AS IS" and the
                responsibility for its operation is yours. You are not permitted to redistribute
                this Apple sample source code as "Apple sample source code" after having made
                changes. If you're going to re-distribute the source, we require that you make
                it clear in the source that the code was descended from Apple sample source
                code, but that you've made changes.
 
    Change History (most recent first):
                7/9/1999    Karl Groethe    Updated for Metrowerks Codewarror Pro 2.1
                
 
*/
#include <MacTypes.h>
#include <Quickdraw.h>
#include <Fonts.h>
#include <Windows.h>
#include <Dialogs.h>
#include <Menus.h>
#include <TextEdit.h>
#include <Menus.h>
#include <Events.h>
#include "IconMenus.h"
#include "IconWindow.h"
 
extern  WindowPtr   bullseyeWindow;
extern  Rect        dragRect;
extern  Rect        PlotRect;
 
void InitMacintosh();
void HandleMouseDown(EventRecord    *theEvent);
void HandleEvent();
/****
 * InitMacintosh()
 *
 * Initialize all the managers & memory
 *
 ****/
 
void InitMacintosh()
 
{
    MaxApplZone();
    
    InitGraf(&qd.thePort);
    InitFonts();
    FlushEvents(everyEvent, 0);
    InitWindows();
    InitMenus();
    TEInit();
    InitDialogs(0L);
    InitCursor();
 
}
/* end InitMacintosh */
 
 
/****
 * HandleMouseDown (theEvent)
 *
 *  Take care of mouseDown events.
 *
 ****/
 
void HandleMouseDown(EventRecord    *theEvent)
{
    WindowPtr   theWindow;
    int         windowCode = FindWindow (theEvent->where, &theWindow);
    
    switch (windowCode)
      {
      case inSysWindow: 
        SystemClick (theEvent, theWindow);
        break;
        
      case inMenuBar:
        AdjustMenus();
        HandleMenu(MenuSelect(theEvent->where));
        break;
        
      case inDrag:
        if (theWindow == bullseyeWindow)
          DragWindow(bullseyeWindow, theEvent->where, &dragRect);
          FindNewDevice(bullseyeWindow);  /* see if the device has changed and inval small icon if so*/
          break;
          
      case inContent:
        if (theWindow == bullseyeWindow)
          {
          if (theWindow != FrontWindow())
            SelectWindow(bullseyeWindow);
          else
            InvalRect(&bullseyeWindow->portRect);
          }
        break;
        
      case inGoAway:
        if (theWindow == bullseyeWindow && 
            TrackGoAway(bullseyeWindow, theEvent->where))
          HideWindow(bullseyeWindow);
          break;
      }
}
/* end HandleMouseDown */
 
 
/****
 * HandleEvent()
 *
 *      The main event dispatcher. This routine should be called
 *      repeatedly (it  handles only one event).
 *
 *****/
 
void HandleEvent()
 
{
    int         ok;
    EventRecord theEvent;
 
    HiliteMenu(0);
    SystemTask ();      /* Handle desk accessories */
    
    ok = GetNextEvent (everyEvent, &theEvent);
    if (ok)
      switch (theEvent.what)
        {
        case mouseDown:
            HandleMouseDown(&theEvent);
            break;
            
        case keyDown: 
        case autoKey:
            if ((theEvent.modifiers & cmdKey) != 0)
              {
              AdjustMenus();
              HandleMenu(MenuKey((char) (theEvent.message & charCodeMask)));
              }
            break;
            
        case updateEvt:
            BeginUpdate(bullseyeWindow);
            DrawBullseye(((WindowPeek) bullseyeWindow)->hilited);
            EndUpdate(bullseyeWindow);
            break;
            
        case activateEvt:
            InvalRect(&bullseyeWindow->portRect);
            break;
        }
}
/* end HandleEvent */
 
 
/*****
 * main()
 *
 *  This is where everything happens
 *
 *****/
 
 
void main()
 
{
    InitMacintosh();
    SetUpMenus();
    SetUpWindow();
    
    for (;;)
        HandleEvent();
}
/* end main */