Final reorganization. Extracted FilterAdapters to handle content-specific

display.
This commit is contained in:
Robert Greene 2004-06-16 03:21:49 +00:00
parent 3725062579
commit f3172245e1

View File

@ -19,27 +19,21 @@
*/
package com.webcodepro.applecommander.ui.swt;
import java.io.ByteArrayInputStream;
import java.util.HashMap;
import java.util.Map;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.custom.StyleRange;
import org.eclipse.swt.custom.StyledText;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.ImageLoader;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
@ -54,18 +48,17 @@ import com.webcodepro.applecommander.storage.filters.AppleWorksWordProcessorFile
import com.webcodepro.applecommander.storage.filters.ApplesoftFileFilter;
import com.webcodepro.applecommander.storage.filters.AssemblySourceFileFilter;
import com.webcodepro.applecommander.storage.filters.GraphicsFileFilter;
import com.webcodepro.applecommander.storage.filters.HexDumpFileFilter;
import com.webcodepro.applecommander.storage.filters.IntegerBasicFileFilter;
import com.webcodepro.applecommander.storage.filters.TextFileFilter;
import com.webcodepro.applecommander.ui.swt.util.ImageCanvas;
import com.webcodepro.applecommander.ui.swt.filteradapter.ApplesoftFilterAdapter;
import com.webcodepro.applecommander.ui.swt.filteradapter.FilterAdapter;
import com.webcodepro.applecommander.ui.swt.filteradapter.GraphicsFilterAdapter;
import com.webcodepro.applecommander.ui.swt.filteradapter.HexFilterAdapter;
import com.webcodepro.applecommander.ui.swt.filteradapter.RawDumpFilterAdapter;
import com.webcodepro.applecommander.ui.swt.filteradapter.TextFilterAdapter;
import com.webcodepro.applecommander.ui.swt.util.ImageManager;
import com.webcodepro.applecommander.ui.swt.util.SwtUtil;
import com.webcodepro.applecommander.ui.swt.util.contentadapter.ContentTypeAdapter;
import com.webcodepro.applecommander.ui.swt.util.contentadapter.ImageCanvasAdapter;
import com.webcodepro.applecommander.ui.swt.util.contentadapter.StyledTextAdapter;
import com.webcodepro.applecommander.util.AppleUtil;
import com.webcodepro.applecommander.util.ApplesoftToken;
import com.webcodepro.applecommander.util.ApplesoftTokenizer;
/**
* View a particular files content.
@ -98,15 +91,17 @@ public class FileViewerWindow {
private Color blue;
private Color green;
public ContentTypeAdapter contentTypeAdapter;
private ContentTypeAdapter contentTypeAdapter;
private Map nativeFilterAdapterMap;
private FilterAdapter nativeFilterAdapter;
private FilterAdapter hexFilterAdapter;
private FilterAdapter rawDumpFilterAdapter;
/**
* Construct the file viewer window.
*/
public FileViewerWindow(Shell parentShell, FileEntry fileEntry, ImageManager imageManager) {
this.parentShell = shell;
this.fileEntry = fileEntry;
this.imageManager = imageManager;
this.nativeFilter = fileEntry.getSuggestedFilter();
this(parentShell, fileEntry, imageManager, fileEntry.getSuggestedFilter());
}
/**
@ -117,6 +112,8 @@ public class FileViewerWindow {
this.fileEntry = fileEntry;
this.imageManager = imageManager;
this.nativeFilter = nativeFilter;
createFilterAdapterMap();
}
/**
@ -138,7 +135,7 @@ public class FileViewerWindow {
composite.setLayout(gridLayout);
GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
createFileToolBar(composite, gridData);
createToolBar(composite, gridData);
content = new ScrolledComposite(composite, SWT.H_SCROLL | SWT.V_SCROLL | SWT.BORDER);
gridData = new GridData(GridData.FILL_BOTH);
@ -150,11 +147,59 @@ public class FileViewerWindow {
blue = new Color(shell.getDisplay(), 0, 0, 192);
green = new Color(shell.getDisplay(), 0, 192, 0);
displayNativeFormat();
nativeFilterAdapter.display();
shell.open();
SwtUtil.setupPagingInformation(content);
}
/**
* Setup all possible specialized FilterAdapters.
*/
protected void createFilterAdapterMap() {
nativeFilterAdapterMap = new HashMap();
nativeFilterAdapterMap.put(ApplesoftFileFilter.class,
new ApplesoftFilterAdapter(this, "Applesoft",
"Displays file as an Applesoft BASIC program (F2)",
imageManager.get(ImageManager.ICON_VIEW_AS_BASIC_PROGRAM)
));
nativeFilterAdapterMap.put(AppleWorksDataBaseFileFilter.class,
new TextFilterAdapter(this, "Database",
"Displays file as a database file (F2)",
imageManager.get(ImageManager.ICON_VIEW_AS_DATABASE)
));
nativeFilterAdapterMap.put(AppleWorksSpreadSheetFileFilter.class,
new TextFilterAdapter(this, "Spreadsheet",
"Displays file as a spreadsheet file (F2)",
imageManager.get(ImageManager.ICON_VIEW_AS_SPREADSHEET)
));
nativeFilterAdapterMap.put(AppleWorksWordProcessorFileFilter.class,
new TextFilterAdapter(this, "Wordprocessor",
"Displays file as a wordprocessor file (F2)",
imageManager.get(ImageManager.ICON_VIEW_AS_WORDPROCESSOR)
));
nativeFilterAdapterMap.put(AssemblySourceFileFilter.class,
new TextFilterAdapter(this, "Assembly",
"Displays file as assembly source file (F2)",
imageManager.get(ImageManager.ICON_VIEW_AS_TEXTFILE)
));
nativeFilterAdapterMap.put(GraphicsFileFilter.class,
new GraphicsFilterAdapter(this, "Image",
"Displays file as an image (F2)",
imageManager.get(ImageManager.ICON_VIEW_AS_IMAGE)
));
nativeFilterAdapterMap.put(IntegerBasicFileFilter.class,
new TextFilterAdapter(this, "Integer BASIC",
"Displays file as an Integer BASIC program (F2)",
imageManager.get(ImageManager.ICON_VIEW_AS_BASIC_PROGRAM)
));
nativeFilterAdapterMap.put(TextFileFilter.class,
new TextFilterAdapter(this, "Text",
"Displays file as a text file (F2)",
imageManager.get(ImageManager.ICON_VIEW_AS_TEXTFILE)
));
}
/**
* Dispose of all shared resources.
@ -168,319 +213,91 @@ public class FileViewerWindow {
}
/**
* Creates the FILE tab toolbar.
* Creates the toolbar.
*/
private void createFileToolBar(Composite composite, Object layoutData) {
private void createToolBar(Composite composite, Object layoutData) {
toolBar = new ToolBar(composite, SWT.FLAT);
toolBar.addListener(SWT.KeyUp, createToolbarCommandHandler());
if (layoutData != null) toolBar.setLayoutData(layoutData);
if (nativeFilter instanceof ApplesoftFileFilter || nativeFilter instanceof IntegerBasicFileFilter) {
nativeToolItem = new ToolItem(toolBar, SWT.RADIO);
nativeToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_AS_BASIC_PROGRAM));
nativeToolItem.setText("BASIC");
nativeToolItem.setToolTipText("Displays file as BASIC program (F2)");
nativeToolItem.setSelection(true);
} else if (nativeFilter instanceof AppleWorksDataBaseFileFilter) {
nativeToolItem = new ToolItem(toolBar, SWT.RADIO);
nativeToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_AS_DATABASE));
nativeToolItem.setText("Database");
nativeToolItem.setToolTipText("Displays file as a database file (F2)");
nativeToolItem.setSelection(true);
} else if (nativeFilter instanceof AppleWorksSpreadSheetFileFilter) {
nativeToolItem = new ToolItem(toolBar, SWT.RADIO);
nativeToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_AS_SPREADSHEET));
nativeToolItem.setText("Spreadsheet");
nativeToolItem.setToolTipText("Displays file as a spreadsheet file (F2)");
nativeToolItem.setSelection(true);
} else if (nativeFilter instanceof AppleWorksWordProcessorFileFilter) {
nativeToolItem = new ToolItem(toolBar, SWT.RADIO);
nativeToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_AS_WORDPROCESSOR));
nativeToolItem.setText("Wordprocessor");
nativeToolItem.setToolTipText("Displays file as a wordprocessor file (F2)");
nativeToolItem.setSelection(true);
} else if (nativeFilter instanceof GraphicsFileFilter) {
nativeToolItem = new ToolItem(toolBar, SWT.RADIO);
nativeToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_AS_IMAGE));
nativeToolItem.setText("Image");
nativeToolItem.setToolTipText("Displays file as an image (F2)");
nativeToolItem.setSelection(true);
} else if (nativeFilter instanceof TextFileFilter) {
nativeToolItem = new ToolItem(toolBar, SWT.RADIO);
nativeToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_AS_TEXTFILE));
nativeToolItem.setText("Text");
nativeToolItem.setToolTipText("Displays file as a text file (F2)");
nativeToolItem.setSelection(true);
} else if (nativeFilter instanceof AssemblySourceFileFilter) {
nativeToolItem = new ToolItem(toolBar, SWT.RADIO);
nativeToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_AS_TEXTFILE));
nativeToolItem.setText("Assembly");
nativeToolItem.setToolTipText("Displays file as assembly source file (F2)");
nativeToolItem.setSelection(true);
if (nativeFilter != null) {
nativeFilterAdapter = (FilterAdapter) nativeFilterAdapterMap.get(nativeFilter.getClass());
if (nativeFilterAdapter != null) {
nativeToolItem = nativeFilterAdapter.create(toolBar);
nativeToolItem.setSelection(true);
}
}
if (nativeToolItem != null) {
nativeToolItem.addSelectionListener(new SelectionAdapter () {
public void widgetSelected(SelectionEvent e) {
displayNativeFormat();
}
});
hexDumpToolItem = createHexDumpToolItem();
if (nativeFilterAdapter == null) {
// Default button changes for these instances.
hexDumpToolItem.setSelection(true);
// Prevent NullPointerExceptions if the nativeFilterAdapter does not apply.
nativeFilterAdapter = hexFilterAdapter;
}
// FIXME Refactoring ideas...
// thingMap.add(AssemblySourceFileFilter.class, new Thing("Assembly",
// "Displays file as assembly source file (F2)"),
// ImageManager.ICON_VIEW_AS_TEXTFILE), true));
// // etc
// if (nativeFilter != null) {
// Thing thing = (Thing) thingMap.get(nativeFilter.getClass());
// thing.create(toolBar);
// }
hexDumpToolItem = new ToolItem(toolBar, SWT.RADIO);
hexDumpToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_IN_HEX));
hexDumpToolItem.setText("Hex Dump");
hexDumpToolItem.setToolTipText("Displays file as a hex dump (F3)");
hexDumpToolItem.setSelection(false);
hexDumpToolItem.addSelectionListener(new SelectionAdapter () {
public void widgetSelected(SelectionEvent e) {
displayHexFormat();
}
});
rawDumpToolItem = new ToolItem(toolBar, SWT.RADIO);
rawDumpToolItem.setImage(imageManager.get(ImageManager.ICON_VIEW_IN_RAW_HEX));
rawDumpToolItem.setText("Raw Dump");
rawDumpToolItem.setToolTipText("Displays file as a raw hex dump (F4)");
rawDumpToolItem.setSelection(false);
rawDumpToolItem.addSelectionListener(new SelectionAdapter () {
public void widgetSelected(SelectionEvent e) {
displayRawFormat();
}
});
rawDumpToolItem = createRawDumpToolItem();
new ToolItem(toolBar, SWT.SEPARATOR);
copyToolItem = new ToolItem(toolBar, SWT.PUSH);
copyToolItem.setImage(imageManager.get(ImageManager.ICON_COPY));
copyToolItem.setText("Copy");
copyToolItem.setToolTipText("Copies selection to the clipboard (CTRL+C)");
copyToolItem.setEnabled(true);
copyToolItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
copy();
}
});
copyToolItem = createCopyToolItem();
new ToolItem(toolBar, SWT.SEPARATOR);
printToolItem = new ToolItem(toolBar, SWT.PUSH);
printToolItem.setImage(imageManager.get(ImageManager.ICON_PRINT_FILE));
printToolItem.setText("Print");
printToolItem.setToolTipText("Print contents... (CTRL+P)");
printToolItem.setEnabled(true);
printToolItem.addSelectionListener(new SelectionAdapter () {
public void widgetSelected(SelectionEvent e) {
print();
}
});
printToolItem = createPrintToolItem();
toolBar.pack();
}
/**
* Print current file.
* Create the hex dump tool item (button).
*/
protected void print() {
contentTypeAdapter.print();
protected ToolItem createHexDumpToolItem() {
hexFilterAdapter = new HexFilterAdapter(this, "Hex Dump",
"Displays file as a hex dump (F3)",
imageManager.get(ImageManager.ICON_VIEW_IN_HEX));
hexFilterAdapter.setHexSelected();
ToolItem toolItem = hexFilterAdapter.create(toolBar);
return toolItem;
}
/**
* Select all text within the widget.
* Create the raw dump tool item (button).
*/
protected void selectAll() {
contentTypeAdapter.selectAll();
}
/**
* Perform copy operation.
*/
protected void copy() {
contentTypeAdapter.copy();
protected ToolItem createRawDumpToolItem() {
rawDumpFilterAdapter = new RawDumpFilterAdapter(this, "Raw Dump",
"Displays file as a raw hex dump (F4)",
imageManager.get(ImageManager.ICON_VIEW_IN_RAW_HEX));
rawDumpFilterAdapter.setDumpSelected();
ToolItem toolItem = rawDumpFilterAdapter.create(toolBar);
return toolItem;
}
/**
* Display the file in its native format.
* Create the copy tool item (button).
*/
protected void displayNativeFormat() {
Control oldContent = content.getContent();
if (oldContent != null) {
oldContent.dispose();
content.setContent(null);
}
if (nativeToolItem != null) nativeToolItem.setSelection(true);
hexDumpToolItem.setSelection(false);
rawDumpToolItem.setSelection(false);
copyToolItem.setEnabled(true);
if (nativeFilter instanceof ApplesoftFileFilter) {
StyledText styledText = new StyledText(content, SWT.NONE);
styledText.setForeground(black);
styledText.setFont(courier);
styledText.setEditable(false);
ApplesoftTokenizer tokenizer = new ApplesoftTokenizer(fileEntry);
boolean firstLine = true;
while (tokenizer.hasMoreTokens()) {
ApplesoftToken token = tokenizer.getNextToken();
if (token == null) {
continue; // should be end of program...
} else if (token.isLineNumber()) {
if (firstLine) {
firstLine = false;
} else {
styledText.append("\n");
}
styledText.append(Integer.toString(token.getLineNumber()));
styledText.append(" ");
} else if (token.isCommandSeparator() || token.isExpressionSeparator()) {
styledText.append(token.getStringValue());
} else if (token.isEndOfCommand()) {
styledText.append("\n");
} else if (token.isString()) {
int caretOffset = styledText.getCharCount();
styledText.append(token.getStringValue());
StyleRange styleRange = new StyleRange();
styleRange.start = caretOffset;
styleRange.length = token.getStringValue().length();
styleRange.foreground = green;
styledText.setStyleRange(styleRange);
} else if (token.isToken()) {
int caretOffset = styledText.getCharCount();
styledText.append(token.getTokenString());
StyleRange styleRange = new StyleRange();
styleRange.start = caretOffset;
styleRange.length = token.getTokenString().length();
//styleRange.fontStyle = SWT.BOLD;
styleRange.foreground = blue;
styledText.setStyleRange(styleRange);
}
protected ToolItem createCopyToolItem() {
ToolItem toolItem = new ToolItem(toolBar, SWT.PUSH);
toolItem.setImage(imageManager.get(ImageManager.ICON_COPY));
toolItem.setText("Copy");
toolItem.setToolTipText("Copies selection to the clipboard (CTRL+C)");
toolItem.setEnabled(true);
toolItem.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
contentTypeAdapter.copy();
}
Point size = styledText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
content.setContent(styledText);
content.setExpandHorizontal(true);
content.setExpandVertical(true);
content.setMinWidth(size.x);
content.setMinHeight(size.y);
content.getContent().addListener(SWT.KeyUp, createToolbarCommandHandler());
contentTypeAdapter = new StyledTextAdapter(styledText, fileEntry.getFilename());
} else if (nativeFilter instanceof IntegerBasicFileFilter) {
String basicDump = new String(nativeFilter.filter(fileEntry));
createTextWidget(content, basicDump);
} else if (nativeFilter instanceof AppleWorksDataBaseFileFilter) {
String basicDump = new String(nativeFilter.filter(fileEntry));
createTextWidget(content, basicDump);
} else if (nativeFilter instanceof AppleWorksSpreadSheetFileFilter) {
String basicDump = new String(nativeFilter.filter(fileEntry));
createTextWidget(content, basicDump);
} else if (nativeFilter instanceof AppleWorksWordProcessorFileFilter) {
String basicDump = new String(nativeFilter.filter(fileEntry));
createTextWidget(content, basicDump);
} else if (nativeFilter instanceof GraphicsFileFilter) {
copyToolItem.setEnabled(false);
byte[] imageBytes = nativeFilter.filter(fileEntry);
ByteArrayInputStream inputStream = new ByteArrayInputStream(imageBytes);
ImageLoader imageLoader = new ImageLoader();
ImageData[] imageData = imageLoader.load(inputStream);
final Image image = new Image(shell.getDisplay(), imageData[0]);
GridLayout layout = new GridLayout();
content.setLayout(layout);
GridData gridData = new GridData();
gridData.widthHint = imageData[0].width;
gridData.heightHint = imageData[0].height;
ImageCanvas imageCanvas = new ImageCanvas(content, SWT.NONE, image, gridData);
content.setContent(imageCanvas);
content.setExpandHorizontal(true);
content.setExpandVertical(true);
content.setMinWidth(imageData[0].width);
content.setMinHeight(imageData[0].height);
contentTypeAdapter = new ImageCanvasAdapter(imageCanvas, fileEntry.getFilename());
} else if (nativeFilter instanceof TextFileFilter) {
String textDump = new String(nativeFilter.filter(fileEntry));
createTextWidget(content, textDump);
} else if (nativeFilter instanceof AssemblySourceFileFilter) {
String textDump = new String(nativeFilter.filter(fileEntry));
createTextWidget(content, textDump);
} else {
displayHexFormat();
}
});
return toolItem;
}
/**
* Create a StyledText widget for displaying plain text.
* Create the print tool item (button).
*/
protected void createTextWidget(Composite composite, String text) {
copyToolItem.setEnabled(true);
StyledText styledText = new StyledText(composite, SWT.NONE);
styledText.setText(text);
styledText.setFont(courier);
styledText.setEditable(false);
//styledText.setWordWrap(true); // seems to throw size out-of-whack
Point size = styledText.computeSize(SWT.DEFAULT, SWT.DEFAULT, true);
content.setContent(styledText);
content.setExpandHorizontal(true);
content.setExpandVertical(true);
content.setMinWidth(size.x);
content.setMinHeight(size.y);
content.getContent().addListener(SWT.KeyUp, createToolbarCommandHandler());
contentTypeAdapter = new StyledTextAdapter(styledText, fileEntry.getFilename());
}
/**
* Display file content as a hex dump.
*/
protected void displayHexFormat() {
copyToolItem.setEnabled(true);
Control oldContent = content.getContent();
if (oldContent != null) {
oldContent.dispose();
content.setContent(null);
}
if (nativeToolItem != null) nativeToolItem.setSelection(false);
hexDumpToolItem.setSelection(true);
rawDumpToolItem.setSelection(false);
FileFilter filter = new HexDumpFileFilter();
String hexDump = new String(filter.filter(fileEntry));
createTextWidget(content, hexDump);
}
/**
* Display file content as hex dump of raw disk bytes.
*/
protected void displayRawFormat() {
Control oldContent = content.getContent();
if (oldContent != null) {
oldContent.dispose();
content.setContent(null);
}
if (nativeToolItem != null) nativeToolItem.setSelection(false);
hexDumpToolItem.setSelection(false);
rawDumpToolItem.setSelection(true);
String rawDump = AppleUtil.getHexDump(
fileEntry.getFormattedDisk().getFileData(fileEntry));
createTextWidget(content, rawDump);
protected ToolItem createPrintToolItem() {
ToolItem toolItem = new ToolItem(toolBar, SWT.PUSH);
toolItem.setImage(imageManager.get(ImageManager.ICON_PRINT_FILE));
toolItem.setText("Print");
toolItem.setToolTipText("Print contents... (CTRL+P)");
toolItem.setEnabled(true);
toolItem.addSelectionListener(new SelectionAdapter () {
public void widgetSelected(SelectionEvent e) {
contentTypeAdapter.print();
}
});
return toolItem;
}
/**
@ -488,32 +305,35 @@ public class FileViewerWindow {
* actions. The intent is that the listener is then added to
* multiple visual components.
*/
private Listener createToolbarCommandHandler() {
public Listener createToolbarCommandHandler() {
return new Listener() {
public void handleEvent(Event event) {
if (event.type == SWT.KeyUp) {
if ((event.stateMask & SWT.CTRL) != 0) { // CTRL+key
switch (event.character) {
case CTRL_C:
copy();
contentTypeAdapter.copy();
break;
case CTRL_A:
selectAll();
contentTypeAdapter.selectAll();
break;
case CTRL_P:
print();
contentTypeAdapter.print();
break;
}
} else if ((event.stateMask & SWT.ALT) == 0) { // key alone
switch (event.keyCode) {
case SWT.F2: // the "native" file format (image, text, etc)
displayNativeFormat();
nativeFilterAdapter.display();
setFilterToolItemSelection(true, false, false);
break;
case SWT.F3: // Hex format
displayHexFormat();
hexFilterAdapter.display();
setFilterToolItemSelection(false, true, false);
break;
case SWT.F4: // "Raw" hex format
displayRawFormat();
rawDumpFilterAdapter.display();
setFilterToolItemSelection(false, false, true);
break;
}
}
@ -521,4 +341,37 @@ public class FileViewerWindow {
}
};
}
public FileFilter getFileFilter() {
return nativeFilter;
}
public FileEntry getFileEntry() {
return fileEntry;
}
public ToolItem getCopyToolItem() {
return copyToolItem;
}
public ScrolledComposite getComposite() {
return content;
}
public void setContentTypeAdapter(ContentTypeAdapter adapter) {
this.contentTypeAdapter = adapter;
}
public Font getCourierFont() {
return courier;
}
public Color getBlackColor() {
return black;
}
public Color getGreenColor() {
return green;
}
public Color getBlueColor() {
return blue;
}
public void setFilterToolItemSelection(boolean nativeSelected, boolean hexSelected, boolean dumpSelected) {
if (nativeToolItem != null) nativeToolItem.setSelection(nativeSelected);
hexDumpToolItem.setSelection(hexSelected);
rawDumpToolItem.setSelection(dumpSelected);
}
}