| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.intellij.images.fileTypes; |
| |
| import com.intellij.lang.documentation.AbstractDocumentationProvider; |
| import com.intellij.openapi.project.DumbService; |
| import com.intellij.openapi.util.SystemInfo; |
| import com.intellij.openapi.vfs.VirtualFile; |
| import com.intellij.openapi.vfs.VirtualFileWithId; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiFileSystemItem; |
| import com.intellij.util.indexing.FileBasedIndex; |
| import org.intellij.images.index.ImageInfoIndex; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.net.URI; |
| import java.net.URISyntaxException; |
| |
| /** |
| * @author spleaner |
| */ |
| public class ImageDocumentationProvider extends AbstractDocumentationProvider { |
| private static final int MAX_IMAGE_SIZE = 300; |
| |
| @Override |
| public String generateDoc(PsiElement element, @Nullable PsiElement originalElement) { |
| final String[] result = new String[] {null}; |
| |
| if (element instanceof PsiFileSystemItem && !((PsiFileSystemItem)element).isDirectory()) { |
| final VirtualFile file = ((PsiFileSystemItem)element).getVirtualFile(); |
| if (file instanceof VirtualFileWithId && !DumbService.isDumb(element.getProject())) { |
| ImageInfoIndex.processValues(file, new FileBasedIndex.ValueProcessor<ImageInfoIndex.ImageInfo>() { |
| @Override |
| public boolean process(VirtualFile file, ImageInfoIndex.ImageInfo value) { |
| int imageWidth = value.width; |
| int imageHeight = value.height; |
| |
| int maxSize = Math.max(value.width, value.height); |
| if (maxSize > MAX_IMAGE_SIZE) { |
| double scaleFactor = (double)MAX_IMAGE_SIZE / (double)maxSize; |
| imageWidth *= scaleFactor; |
| imageHeight *= scaleFactor; |
| } |
| try { |
| String path = file.getPath(); |
| if (SystemInfo.isWindows) { |
| path = "/" + path; |
| } |
| final String url = new URI("file", null, path, null).toString(); |
| result[0] = String.format("<html><body><img src=\"%s\" width=\"%s\" height=\"%s\"><p>%sx%s, %sbpp</p><body></html>", url, imageWidth, |
| imageHeight, value.width, value.height, value.bpp); |
| } |
| catch (URISyntaxException ignored) { |
| // nothing |
| } |
| return true; |
| } |
| }, element.getProject()); |
| } |
| } |
| |
| return result[0]; |
| } |
| } |
