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ETO Development Tools 4
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MPW C++
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MPW C++ 3.1
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Examples
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CPlusExamples
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Shapes.h
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1990-09-11
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/*------------------------------------------------------------------------------
#
# MultiFinder-Aware Simple Shapes Sample Application
#
# CPlusShapesApp
#
# This file: Shapes.h - Interface to the Shape Classes
#
# Copyright © 1988 Apple Computer, Inc.
# All rights reserved.
#
# Versions: 1.0 3/89
#
# Components:
# CPlusShapesApp.make March 1, 1989
# TApplicationCommon.h March 1, 1989
# TApplication.h March 1, 1989
# TDocument.h March 1, 1989
# ShapesAppCommon.h March 1, 1989
# ShapesApp.h March 1, 1989
# ShapesDocument.h March 1, 1989
# TApplication.cp March 1, 1989
# TDocument.cp March 1, 1989
# ShapesApp.cp March 1, 1989
# ShapesDocument.cp March 1, 1989
# TApplication.r March 1, 1989
# ShapesApp.r March 1, 1989
#
# There are four main classes in this program. Each of
# these classes has a definition (.h) file and an
# implementation (.cp) file.
#
# The TApplication class does all of the basic event
# handling and initialization necessary for Mac Toolbox
# applications. It maintains a list of TDocument objects,
# and passes events to the correct TDocument class when
# apropriate.
#
# The TDocument class does all of the basic document
# handling work. TDocuments are objects that are
# associated with a window. Methods are provided to deal
# with update, activate, mouse-click, key down, and other
# events. Some additional classes which implement a
# linked list of TDocument objects are provided.
#
# The TApplication and TDocument classes together define
# a basic framework for Mac applications, without having
# any specific knowledge about the type of data being
# displayed by the application's documents. They are a
# (very) crude implementation of the MacApp application
# model, without the sophisticated view heirarchies or
# any real error handling.
#
# The TShapesApp class is a subclass of TApplication. It
# overrides several TApplication methods, including those
# for handling menu commands and cursor adjustment, and
# it does some necessary initialization.
#
# The TShapesDocument class is a subclass of TDocument. This
# class contains most of the special purpose code for
# shape drawing. In addition to overriding several of the
# TDocument methods, it defines a few additional
# methods which are used by the TShapesApp class to get
# information on the document state.
#
#------------------------------------------------------------------------------*/
#ifndef Shape_Defs
#define Shape_Defs
#include <Types.h>
#include <QuickDraw.h>
#include <stdlib.h>
class TShape : HandleObject {
public:
virtual void Move(Rect* r); // Movement is not shape specific.
// Neither Draw or Erase should ever be called, they MUST be overridden!
// We make them private and force an error so we'll know if this ever occurs.
virtual void Draw(Pattern) {DebugStr("\pCall to TShape::Draw");}
virtual void Erase() {DebugStr("\pCall to TShape::Erase");}
protected:
TShape(Rect* r); // Only accessible to public descendants
Rect fBoundRect;
private:
virtual void RandomRect(Rect* drawRect);
};
class TArc : public TShape {
public:
TArc(Rect* r);
// Overridden since drawing and erasing are shape specific operations
virtual void Draw(Pattern);
virtual void Erase();
private:
short fStartAngle, fArcAngle;
};
class TRoundRect : public TShape {
public:
TRoundRect(Rect* r);
// Overridden since drawing and erasing are shape specific operations
virtual void Draw(Pattern);
virtual void Erase();
private:
short fOvalWidth, fOvalHeight; // curvature of rounded corners
};
class TOval : public TShape {
public:
TOval(Rect *r);
// Overridden since drawing and erasing are shape specific operations
virtual void Draw(Pattern);
virtual void Erase();
private:
short fStartAngle, fArcAngle;
};
#endif Shape_Defs