From 6ffd53dea01feae882b66d8bf380793eb84b2fea Mon Sep 17 00:00:00 2001
From: Oleg Krasilnikov <oleg.krasilnikov@intel.com>
Date: Fri, 27 Apr 2007 15:27:51 +0000
Subject: [PATCH] Toolchains filtering implemented

---
 .../ui/wizards/AbstractCWizard.java           | 107 +++++++++++++++++-
 .../ui/wizards/ManagedBuildWizard.java        |   5 +-
 .../ui/wizards/StdBuildWizard.java            |   3 +-
 .../ui/wizards/CDTCommonProjectWizard.java    |  13 +++
 4 files changed, 122 insertions(+), 6 deletions(-)

diff --git a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/AbstractCWizard.java b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/AbstractCWizard.java
index f217dbe3fb6..30090f44e58 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/AbstractCWizard.java
+++ b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/AbstractCWizard.java
@@ -14,12 +14,16 @@ import java.util.Arrays;
 import java.util.List;
 
 import org.eclipse.cdt.internal.ui.CPluginImages;
+import org.eclipse.cdt.managedbuilder.core.IInputType;
 import org.eclipse.cdt.managedbuilder.core.ITargetPlatform;
+import org.eclipse.cdt.managedbuilder.core.ITool;
 import org.eclipse.cdt.managedbuilder.core.IToolChain;
 import org.eclipse.cdt.managedbuilder.ui.properties.ManagedBuilderUIImages;
+import org.eclipse.cdt.ui.wizards.CDTCommonProjectWizard;
 import org.eclipse.cdt.ui.wizards.CNewWizard;
 import org.eclipse.cdt.ui.wizards.IWizardItemsListListener;
 import org.eclipse.cdt.utils.Platform;
+import org.eclipse.jface.wizard.IWizard;
 import org.eclipse.swt.graphics.Image;
 import org.eclipse.swt.widgets.Composite;
 
@@ -41,15 +45,31 @@ public abstract class AbstractCWizard extends CNewWizard {
 		listener = _listener;
 	}
 	
-	protected boolean isValid(IToolChain tc) {
+	/**
+	 * Checks whether toolchain can be displayed 
+	 * @param tc
+	 * @return
+	 */
+	protected boolean isValid(IToolChain tc, boolean supportedOnly, IWizard w) {
+		// Check for langiuage compatibility first in any case
+		if (!isLanguageCompatible(tc, w))
+			return false;
+		
+		// Do not do further check if all toolchains are permitted	
+		if (!supportedOnly) 
+			return true;
+		
+		// Filter off unsupported and system toolchains
 		if (tc == null || !tc.isSupported() || tc.isAbstract() || tc.isSystemObject()) 
 			return false;
+		
+		// Check for platform compatibility
 		ITargetPlatform tp = tc.getTargetPlatform();
 		if (tp != null) {
 			List osList = Arrays.asList(tc.getOSList());
 			if (osList.contains(ALL) || osList.contains(os)) {
 				List archList = Arrays.asList(tc.getArchList());
-				if (archList.contains(ALL) || archList.contains(arch)) 
+				if (archList.contains(ALL) || archList.contains(arch))
 					return true; // OS and ARCH fits
 			}
 			return false; // OS or ARCH does not fit
@@ -57,7 +77,88 @@ public abstract class AbstractCWizard extends CNewWizard {
 		return true; // No platform: nothing to check 
 	}
 
-/* comment it out for now..
+	/**
+	 * Checks toolchain for Language ID, Content type ID 
+	 * and Extensions, if they are required by wizard.
+	 * 
+	 * @param tc - toolchain to check
+	 * @param w - wizard which provides selection criteria
+	 * @return
+	 */
+	protected boolean isLanguageCompatible(IToolChain tc, IWizard w) {
+		if (w == null) 
+			return true;
+		if (!(w instanceof CDTCommonProjectWizard))
+			return true;
+
+		ITool[] tools = tc.getTools(); 
+		CDTCommonProjectWizard wz = (CDTCommonProjectWizard)w;
+		String[] langIDs = wz.getLanguageIDs(); 
+		String[] ctypeIDs = wz.getContentTypeIDs();
+		String[] exts = wz.getExtensions();
+		
+		// nothing requied ?   
+		if (empty(langIDs) && empty(ctypeIDs) && empty(exts))
+			return true;
+		
+		for (int i=0; i<tools.length; i++) {
+			IInputType[] its = tools[i].getInputTypes();
+			
+			// no input types - check only extensions
+			if (empty(its)) {  
+				if (!empty(exts)) {
+					String[] s = tools[i].getAllInputExtensions();
+					if (contains(exts, s))
+						return true; // extension fits
+				}
+				continue;
+			}
+			// normal tool with existing input type(s)
+			for (int j = 0; j<its.length; j++) {
+				// Check language IDs
+				if (!empty(langIDs)) {
+					String lang = its[j].getLanguageId(tools[i]);
+					if (contains(langIDs, new String[] {lang})) {
+						return true; // Language ID fits
+					}
+				}
+				// Check content types
+				if (!empty(ctypeIDs)) {
+					String[] ct1 = its[j].getSourceContentTypeIds();
+					String[] ct2 = its[j].getHeaderContentTypeIds();
+					if (contains(ctypeIDs, ct1) ||
+						contains(ctypeIDs, ct2)) 
+					{
+						return true; // content type fits
+					}
+				}					
+				// Check extensions
+				if (!empty(exts)) {
+					String[] ex1 =its[j].getHeaderExtensions(tools[i]);
+					String[] ex2 =its[j].getSourceExtensions(tools[i]);
+					if (contains(exts, ex1) ||
+						contains(exts, ex2)) {
+						return true; // extension fits fits
+					}
+				}
+			}
+		}
+		return false; // no one value fits to required
+	}
+	
+	private boolean empty(Object[] s) {
+		return (s == null || s.length == 0);
+	}
+	
+	private boolean contains(String[] s1, String[] s2) {
+		for (int i=0; i<s1.length; i++) 
+			for (int j=0; j<s2.length; j++) 
+				if (s1[i].equals(s2[j])) 
+					return true;
+		return false;
+	}
+
+	/* comment it out for now..
 	protected boolean isSupportedForTemplate(TemplateInfo templateInfo, IToolChain tc) {
 		String[] tcIds = templateInfo.getToolChainIds();
 		if (tcIds.length != 0) {
diff --git a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/ManagedBuildWizard.java b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/ManagedBuildWizard.java
index 504bd098504..bd287dcfe70 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/ManagedBuildWizard.java
+++ b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/ManagedBuildWizard.java
@@ -49,7 +49,8 @@ public class ManagedBuildWizard extends AbstractCWizard {
 			if (tcs == null || tcs.length == 0) continue;
 			MBSWizardHandler h = new MBSWizardHandler(vs[i], parent, wizard);
 			for (int j=0; j<tcs.length; j++) {
-				if (!supportedOnly || isValid(tcs[j])) h.addTc(tcs[j]);
+				if (isValid(tcs[j], supportedOnly, wizard)) 
+					h.addTc(tcs[j]);
 			}
 			if (h.getToolChainsCount() > 0) {
 				items.add(new EntryDescriptor(vs[i].getId(), null, vs[i].getName(), true, h, null));
@@ -74,7 +75,7 @@ public class ManagedBuildWizard extends AbstractCWizard {
 			for (int i=0; i<cfgs.length; i++) {
 				if (cfgs[i].isSystemObject()) continue;
 				IToolChain t = cfgs[i].getToolChain();
-				if (!supportedOnly || isValid(t)) {
+				if (isValid(t, supportedOnly, wizard)) {
 					tc = t;
 					break;
 				}
diff --git a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/StdBuildWizard.java b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/StdBuildWizard.java
index 64a9ecf19a4..00bb96b7fff 100644
--- a/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/StdBuildWizard.java
+++ b/build/org.eclipse.cdt.managedbuilder.ui/src/org/eclipse/cdt/managedbuilder/ui/wizards/StdBuildWizard.java
@@ -24,7 +24,8 @@ public class StdBuildWizard extends AbstractCWizard {
 		h.addTc(null); // add default toolchain
 		IToolChain[] tcs = ManagedBuildManager.getRealToolChains();
 		for (int i=0; i<tcs.length; i++)
-			if (!supportedOnly || isValid(tcs[i])) h.addTc(tcs[i]);
+			if (isValid(tcs[i], supportedOnly, wizard)) 
+				h.addTc(tcs[i]);
 		EntryDescriptor wd = new EntryDescriptor(NAME, null, NAME, false, h, null); 
 		return new EntryDescriptor[] {wd};
 		
diff --git a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/CDTCommonProjectWizard.java b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/CDTCommonProjectWizard.java
index bf37970a5d6..afc1c757207 100644
--- a/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/CDTCommonProjectWizard.java
+++ b/core/org.eclipse.cdt.ui/src/org/eclipse/cdt/ui/wizards/CDTCommonProjectWizard.java
@@ -46,6 +46,7 @@ implements IExecutableExtension, IWizardWithMemory
 	private static final String OP_ERROR= "CProjectWizard.op_error"; //$NON-NLS-1$
 	private static final String title= CUIPlugin.getResourceString(OP_ERROR + ".title"); //$NON-NLS-1$
 	private static final String message= CUIPlugin.getResourceString(OP_ERROR + ".message"); //$NON-NLS-1$
+	private static final String[] EMPTY_ARR = new String[0]; 
 	
 	protected IConfigurationElement fConfigElement;
 	protected CDTMainWizardPage fMainPage;
@@ -231,4 +232,16 @@ implements IExecutableExtension, IWizardWithMemory
 	public IPath getLastProjectLocation() {
 		return lastProjectLocation;
 	}
+	
+	// Methods below should provide data for language check
+	public String[] getLanguageIDs (){
+		return EMPTY_ARR;
+	}
+	public String[] getContentTypeIDs (){
+		return EMPTY_ARR;
+	}
+	public String[] getExtensions (){
+		return EMPTY_ARR;
+	}
+	
 }