Mercurial > projects > dwt2
view org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/dnd/TextTransfer.d @ 120:536e43f63c81
Comprehensive update for Win32/Linux32 dmd-2.053/dmd-1.068+Tango-r5661
===D2===
* added [Try]Immutable/Const/Shared templates to work with differenses in D1/D2 instead of version statements
used these templates to work with strict type storage rules of dmd-2.053
* com.ibm.icu now also compilable with D2, but not tested yet
* small fixes
Snippet288 - shared data is in TLS
===Phobos===
* fixed critical bugs in Phobos implemention
completely incorrect segfault prone fromStringz (Linux's port ruthless killer)
terrible, incorrect StringBuffer realization (StyledText killer)
* fixed small bugs as well
Snippet72 - misprint in the snippet
* implemented missed functionality for Phobos
ByteArrayOutputStream implemented (image loading available)
formatting correctly works for all DWT's cases
As a result, folowing snippets now works with Phobos (Snippet### - what is fixed):
Snippet24, 42, 111, 115, 130, 235, 276 - bad string formatting
Snippet48, 282 - crash on image loading
Snippet163, 189, 211, 213, 217, 218, 222 - crash on copy/cut in StyledText
Snippet244 - hang-up
===Tango===
* few changes for the latest Tango trunc-r5661
* few small performance improvments
===General===
* implMissing-s for only one version changed to implMissingInTango/InPhobos
* incorrect calls to Format in toString-s fixed
* fixed loading \uXXXX characters in ResourceBundle
* added good UTF-8 support for StyledText, TextLayout (Win32) and friends
UTF functions revised and tested. It is now in java.nonstandard.*Utf modules
StyledText and TextLayout (Win32) modules revised for UTF-8 support
* removed small diferences in most identical files in *.swt.* folders
*.swt.internal.image, *.swt.events and *.swt.custom are identical in Win32/Linux32
now 179 of 576 (~31%) files in *.swt.* folders are fully identical
* Win32: snippets now have right subsystem, pretty icons and native system style controls
* small fixes in snippets
Snippet44 - it's not Snippet44
Snippet212 - functions work with different images and offsets arrays
Win32: Snippet282 - crash on close if the button has an image
Snippet293 - setGrayed is commented
and others
Win32: As a result, folowing snippets now works
Snippet68 - color doesn't change
Snippet163, 189, 211, 213, 217, 218, 222 - UTF-8 issues (see above)
Snippet193 - no tabel headers
author | Denis Shelomovskij <verylonglogin.reg@gmail.com> |
---|---|
date | Sat, 09 Jul 2011 15:50:20 +0300 |
parents | fa9548cd8d89 |
children |
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/******************************************************************************* * Copyright (c) 2000, 2008 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module org.eclipse.swt.dnd.TextTransfer; import org.eclipse.swt.internal.Converter; import org.eclipse.swt.internal.gtk.OS; import java.lang.all; import org.eclipse.swt.dnd.ByteArrayTransfer; import org.eclipse.swt.dnd.TransferData; import org.eclipse.swt.dnd.DND; /** * The class <code>TextTransfer</code> provides a platform specific mechanism * for converting plain text represented as a java <code>String</code> * to a platform specific representation of the data and vice versa. * * <p>An example of a java <code>String</code> containing plain text is shown * below:</p> * * <code><pre> * String textData = "Hello World"; * </code></pre> * * @see Transfer */ public class TextTransfer : ByteArrayTransfer { private static TextTransfer _instance; private static const String COMPOUND_TEXT = "COMPOUND_TEXT"; //$NON-NLS-1$ private static const String UTF8_STRING = "UTF8_STRING"; //$NON-NLS-1$ private static const String STRING = "STRING"; //$NON-NLS-1$ private static const int COMPOUND_TEXT_ID; private static const int UTF8_STRING_ID; private static const int STRING_ID; static this(){ COMPOUND_TEXT_ID = registerType(COMPOUND_TEXT); UTF8_STRING_ID = registerType(UTF8_STRING); STRING_ID = registerType(STRING); _instance = new TextTransfer(); } private this() {} /** * Returns the singleton instance of the TextTransfer class. * * @return the singleton instance of the TextTransfer class */ public static TextTransfer getInstance () { return _instance; } /** * This implementation of <code>javaToNative</code> converts plain text * represented by a java <code>String</code> to a platform specific representation. * * @param object a java <code>String</code> containing text * @param transferData an empty <code>TransferData</code> object that will * be filled in on return with the platform specific format of the data * * @see Transfer#nativeToJava */ override public void javaToNative (Object object, TransferData transferData) { transferData.result = 0; if (!checkText(object) || !isSupportedType(transferData)) { DND.error(DND.ERROR_INVALID_DATA); } String string = stringcast(object); char* utf8 = toStringz(string); if (transferData.type is cast(void*) COMPOUND_TEXT_ID) { void* encoding; int format; char* ctext; int length; bool result = cast(bool) OS.gdk_utf8_to_compound_text(utf8, &encoding, &format, &ctext, &length); if (!result) return; transferData.type = encoding; transferData.format = format; transferData.length = length; transferData.pValue = ctext; transferData.result = 1; } if (transferData.type is cast(void*)UTF8_STRING_ID) { char* pValue = cast(char*)OS.g_malloc(string.length+1); if (pValue is null) return; pValue[ 0 .. string.length ] = string; pValue[ string.length ] = '\0'; transferData.type = cast(void*)UTF8_STRING_ID; transferData.format = 8; transferData.length = string.length; transferData.pValue = pValue; transferData.result = 1; } if (transferData.type is cast(void*)STRING_ID) { auto string_target = OS.gdk_utf8_to_string_target(utf8); if (string_target is null) return; transferData.type = cast(void*)STRING_ID; transferData.format = 8; transferData.length = OS.strlen(string_target); transferData.pValue = string_target; transferData.result = 1; } } /** * This implementation of <code>nativeToJava</code> converts a platform specific * representation of plain text to a java <code>String</code>. * * @param transferData the platform specific representation of the data to be converted * @return a java <code>String</code> containing text if the conversion was successful; otherwise null * * @see Transfer#javaToNative */ override public Object nativeToJava(TransferData transferData){ if (!isSupportedType(transferData) || transferData.pValue is null) return null; char** list; int count = OS.gdk_text_property_to_utf8_list(transferData.type, transferData.format, transferData.pValue, transferData.length, &list); if (count is 0) return null; String utf8 = fromStringz( list[0] )._idup(); OS.g_strfreev(list); return new ArrayWrapperString( utf8 ); } override protected int[] getTypeIds() { return [UTF8_STRING_ID, COMPOUND_TEXT_ID, STRING_ID]; } override protected String[] getTypeNames() { return [UTF8_STRING, COMPOUND_TEXT, STRING]; } bool checkText(Object object) { if( object is null ) return false; ArrayWrapperString astr = cast(ArrayWrapperString)object; if( astr is null ) return false; return astr.array.length > 0; } protected override bool validate(Object object) { return checkText(object); } }