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/*
* (a) (C) 1990 by Adobe Systems Incorporated. All rights reserved.
*
* (b) If this Sample Code is distributed as part of the Display PostScript
* System Software Development Kit from Adobe Systems Incorporated,
* then this copy is designated as Development Software and its use is
* subject to the terms of the License Agreement attached to such Kit.
*
* (c) If this Sample Code is distributed independently, then the following
* terms apply:
*
* (d) This file may be freely copied and redistributed as long as:
* 1) Parts (a), (d), (e) and (f) continue to be included in the file,
* 2) If the file has been modified in any way, a notice of such
* modification is conspicuously indicated.
*
* (e) PostScript, Display PostScript, and Adobe are registered trademarks of
* Adobe Systems Incorporated.
*
* (f) THE INFORMATION BELOW IS FURNISHED AS IS, IS SUBJECT TO
* CHANGE WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED
* AS A COMMITMENT BY ADOBE SYSTEMS INCORPORATED.
* ADOBE SYSTEMS INCORPORATED ASSUMES NO RESPONSIBILITY
* OR LIABILITY FOR ANY ERRORS OR INACCURACIES, MAKES NO
* WARRANTY OF ANY KIND (EXPRESS, IMPLIED OR STATUTORY)
* WITH RESPECT TO THIS INFORMATION, AND EXPRESSLY
* DISCLAIMS ANY AND ALL WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR PARTICULAR PURPOSES AND NONINFRINGEMENT
* OF THIRD PARTY RIGHTS.
*/
/*
* ScrollApp.m
*
* This subclass of the application class performs the global
* setup needed for the Scrolling application. The drawing
* window is created.
*
* Version: 2.0
* Author: Ken Anderson, Ken Fromm
* History:
* 03-07-91 Added this comment.
*/
#import "ScrollApp.h"
#import "DocView.h"
#import "DrawingView.h"
#import "DrawingViewWraps.h"
#import "EpsfParser.h"
#import <objc/hashtable.h> /* for NXCopyStringBuffer() */
#import <appkit/Button.h>
#import <appkit/Matrix.h>
#import <appkit/OpenPanel.h>
#import <appkit/ScrollView.h>
#import <appkit/Window.h>
#import <appkit/nextstd.h>
#import <sys/param.h>
#import <string.h>
static NXRect windowRect = {150, 184, 550, 600};
@implementation ScrollApp
/*
* Allocate the memory for the user path description buffers. Create the
* window for drawing the image.
*/
+ new
{
self = [super new];
NX_MALLOC(drawBuffer.pts, float, PTS_UPATH_BUFFER);
NX_MALLOC(drawBuffer.ops, char, OPS_UPATH_BUFFER);
windowBacking = NX_RETAINED;
readerId = [EpsfParser new];
[self createWindow:&windowRect];
return self;
}
/*
* Create the drawing window and place a scrollview as the content view.
* A DrawingView instance is placed as the DocView of the ScrollView.
*/
- createWindow:(NXRect *) winRect
{
NXRect tempRect;
windowId = [Window newContent:winRect
style:NX_TITLEDSTYLE
backing:windowBacking
buttonMask:NX_RESIZEBUTTONMASK
defer:NO];
[Window getContentRect:&tempRect forFrameRect:winRect style:NX_TITLEDSTYLE];
scrollviewId = [ScrollView newFrame:&tempRect];
[scrollviewId setBorderType:SCROLLVIEW_BORDER];
drawingviewId = [[[DrawingView newFrame:&tempRect] setClipping:NO] allocateGState];
docviewId = [[[[DocView new] setClipping:NO] allocateGState] setScale:1.0];
[docviewId setDrawView:drawingviewId];
[scrollviewId setDocView:docviewId];
/*
* Important in 2.0 because it eliminates a problem in 2.0 that shifts the halftonephase
* over by 1 extra pixel, causing a noticable aberration in a halftone during a scroll.
*/
[[[docviewId superview] setFlipped:NO] allocateGState];
[[windowId setContentView:scrollviewId] free];
[windowId makeFirstResponder:drawingviewId];
[windowId setDelegate:self];
return self;
}
/* The window will free the its subviews. */
- free
{
if (drawBuffer.pts)
NX_FREE(drawBuffer.pts);
if (drawBuffer.ops)
NX_FREE(drawBuffer.ops);
[readerId free];
[windowId free];
return [super free];
}
- setMenuItem:anObject;
{
menuitemId = anObject;
return self;
}
- setRedrawButton:anObject
{
redrawButton = anObject;
methodsWindow = [redrawButton window];
return self;
}
- redrawButton
{
return redrawButton;
}
- methodsWindow
{
return methodsWindow;
}
- setStatusMatrix:anObject
{
statusmatrixId = anObject;
return self;
}
- getStatusMatrix
{
return statusmatrixId;
}
- setTimingMatrix:anObject
{
timingmatrixId = anObject;
return self;
}
- getTimingMatrix
{
return timingmatrixId;
}
- setStrokingMatrix:anObject
{
strokingmatrixId = anObject;
return self;
}
- getStrokingMatrix
{
return strokingmatrixId;
}
- setParameterMatrix:anObject
{
parametermatrixId = anObject;
return self;
}
- getParameterMatrix
{
return parametermatrixId;
}
- setTypeOfDrawing:sender
{
[drawingviewId setTypeOfDrawing:sender];
return self;
}
- setSelectivity:sender
{
[drawingviewId setSelectivity:sender];
return self;
}
- setDrawingManner:sender
{
[drawingviewId setDrawingManner:sender];
return self;
}
- setParameterSetting:sender
{
[drawingviewId setParameterSetting:sender];
return self;
}
- setStroking:sender
{
[drawingviewId setStroking:sender];
return self;
}
- setWindowBacking:sender
{
id newWindow, oldContentView, tempView;
char *windowTitle;
int newBacking;
NXRect winFrame, contRect;
if (!runningDrawModal)
{
if ([sender selectedRow] == 0)
newBacking = NX_RETAINED;
else
newBacking = NX_BUFFERED;
if (windowBacking != newBacking)
{
[windowId getFrame:&winFrame];
[Window getContentRect:&contRect forFrameRect:&winFrame
style:[windowId style]];
newWindow = [Window newContent:&contRect
style:NX_TITLEDSTYLE
backing:newBacking
buttonMask:NX_RESIZEBUTTONMASK
defer:NO];
[newWindow setTitle:[windowId title]];
[newWindow display];
[newWindow makeKeyAndOrderFront:self];
[windowId disableDisplay];
tempView = [View new];
oldContentView = [windowId setContentView:tempView];
[[newWindow setContentView:oldContentView] free];
[windowId free];
windowId = newWindow;
[windowId makeFirstResponder:drawingviewId];
[windowId setDelegate:self];
windowBacking = newBacking;
}
if (currentfile)
{
[drawingviewId setFieldsMode:YES];
[windowId display];
[windowId makeKeyAndOrderFront:self];
}
}
return self;
}
- showWindow:sender
{
if (currentfile)
[windowId makeKeyAndOrderFront:self];
return self;
}
/* This method changes the title of the menu cell according to the
* value of the trace variable.
*/
-setTracing:sender
{
if (trace == NO)
[[sender selectedCell] setTitle:"Trace On"];
else
[[sender selectedCell] setTitle:"Trace Off"];
trace = !trace;
return self;
}
- (BOOL) tracing;
{
return trace;
}
- zoom:sender
{
[docviewId zoom:sender];
return self;
}
- redrawAction:sender
{
if (!runningDrawModal)
[redrawButton performClick:self];
return self;
}
- redraw:sender
{
NXRect visRect;
if (!runningDrawModal)
{
[drawingviewId setFieldsMode:YES];
[drawingviewId getVisibleRect:&visRect];
[drawingviewId display:&visRect :1];
}
return self;
}
- displayFields:sender
{
[drawingviewId displayFields:sender];
return self;
}
- getDrawingView
{
return drawingviewId;
}
- getDocument
{
return docviewId;
}
- (UPath *) getUpathBuffer
{
return &drawBuffer;
}
/*
* Called by pressing Load... in the Main menu.
*/
- load:sender
{
id openpanelId, tempviewId, clipviewId;
const char *file;
static const char *const doctype[3] = {"ps", "eps", NULL};
NXStream *stream;
NXPoint viewPt, windowPt;
NXRect epsfBounds, viewFrame;
openpanelId = [[OpenPanel new] allowMultipleFiles:NO];
if ([openpanelId runModalForTypes:doctype])
{
file = [openpanelId filename];
if (!currentfile || strcmp(file, currentfile))
{
stream = NXMapFile(file, NX_READONLY);
if (stream)
{
tempviewId = [View new];
[windowId setContentView:tempviewId];
[self setName:file withParsing:YES];
[windowId display];
[windowId makeKeyAndOrderFront:self];
NXPing();
[[windowId setContentView:scrollviewId] free];
if ([readerId readPSFromStream:stream])
{
[docviewId scaleView:drawingviewId withScale:1.0];
[docviewId setScale:1.0];
[[docviewId zoomControl] selectCellWithTag:100];
[readerId getBounds:&epsfBounds];
[drawingviewId setDrawOrigin:&epsfBounds.origin];
[drawingviewId sizeTo:epsfBounds.size.width :epsfBounds.size.height];
[self setName:file withParsing:NO];
if (currentfile)
NX_FREE(currentfile);
currentfile = NXCopyStringBuffer(file);
[windowId disableDisplay];
[docviewId placeView:drawingviewId];
/* Scroll center of image to center of window. */
[docviewId getFrame:&viewFrame];
viewPt.x = viewFrame.size.width/2;
viewPt.y = viewFrame.size.height/2;
[drawingviewId convertPoint:&viewPt
fromView:docviewId];
[scrollviewId getFrame:&viewFrame];
windowPt.x = viewFrame.size.width/2;
windowPt.y = viewFrame.size.height/2;
[scrollviewId convertPoint:&windowPt toView:nil];
[docviewId scrollPoint:&viewPt
inView:drawingviewId to:&windowPt];
[windowId reenableDisplay];
[drawingviewId setFieldsMode:YES];
[windowId display];
}
else
{
[self setName:currentfile withParsing:NO];
[windowId display];
}
NXCloseMemory(stream, NX_FREEBUFFER);
}
else
NXRunAlertPanel("Load File", "Invalid File. Cannot open.",
"OK", NULL, NULL);
}
}
return self;
}
/*
* Updates the name and directory of the document.
*/
- setName:(const char *)filename withParsing:(BOOL) flag
{
int len = 0;
char title[MAXPATHLEN+5];
char *simple_filename;
if (filename && *filename)
{
if (flag)
strcpy(title, "parsing:");
else
title[0] = 0;
simple_filename = strrchr(filename, '/');
if (simple_filename)
{
len = strlen(simple_filename);
simple_filename++;
strcat(title, simple_filename);
strcat(title, " \320 "); /* \320 is a "long dash" */
strcatn(title, filename, strlen(filename) - len);
}
else
strcat(title, filename);
[windowId setTitle:title];
[menuitemId setEnabled:YES];
}
else
[windowId setTitle:"Scrolling"];
return self;
}
/*
* Resizes the doc view and repositions the drawing view inside the doc view.
*/
- windowDidResize:sender
{
[docviewId placeView:drawingviewId];
return self;
}
- (int) runDrawModalSession:(NXModalSession *) session
{
int returnCode1, returnCode2;
NXPoint pt;
NXEvent *anEvent;
runningDrawModal = YES;
returnCode1 = NX_RUNCONTINUES;
while (anEvent = [NXApp getNextEvent:NX_MOUSEDOWNMASK waitFor:0
threshold:NX_RUNMODALTHRESHOLD])
{
if (anEvent->window == [methodsWindow windowNum])
{
redrawButton = [NXApp redrawButton];
pt = anEvent->location;
[[redrawButton superview] convertPoint:&pt fromView:nil];
if ([redrawButton hitTest:&pt] == redrawButton)
{
[redrawButton performClick:self];
returnCode1 = NX_RUNABORTED;
}
}
}
returnCode2 = [self runModalSession:session];
runningDrawModal = NO;
if (returnCode1 == NX_RUNABORTED)
return returnCode1;
else
return returnCode2;
}
@end
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