Java tutorial
/* ****************************************************************************** * Copyright (c) 2006-2012 XMind Ltd. and others. * * This file is a part of XMind 3. XMind releases 3 and * above are dual-licensed under the Eclipse Public License (EPL), * which is available at http://www.eclipse.org/legal/epl-v10.html * and the GNU Lesser General Public License (LGPL), * which is available at http://www.gnu.org/licenses/lgpl.html * See http://www.xmind.net/license.html for details. * * Contributors: * XMind Ltd. - initial API and implementation *******************************************************************************/ package org.xmind.ui.internal.print.multipage; import org.eclipse.draw2d.AbstractLayout; import org.eclipse.draw2d.FigureCanvas; import org.eclipse.draw2d.IFigure; import org.eclipse.draw2d.Layer; import org.eclipse.draw2d.LightweightSystem; import org.eclipse.draw2d.LineBorder; import org.eclipse.draw2d.SWTGraphics; import org.eclipse.draw2d.Viewport; import org.eclipse.draw2d.geometry.Dimension; import org.eclipse.jface.resource.JFaceResources; import org.eclipse.jface.resource.LocalResourceManager; import org.eclipse.jface.resource.ResourceManager; import org.eclipse.jface.util.Util; import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Canvas; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Widget; import org.xmind.gef.draw2d.ITextFigure; import org.xmind.gef.draw2d.RotatableWrapLabel; import org.xmind.ui.internal.MindMapUIPlugin; import org.xmind.ui.internal.print.PrintConstants; import org.xmind.ui.mindmap.MindMapUI; import org.xmind.ui.resources.ColorUtils; import org.xmind.ui.resources.FontUtils; public class MultipageImagePreviewViewer { private static final int PREF_WIDTH = 300; private static final int PREF_HEIGHT = 180; private static final int BORDER_WIDTH = 1; private static final int TEXT_MARGIN = 3; private static final double Show_Font_Multiple = 4.0; private static final String ENABLED = "enabled"; //$NON-NLS-1$ private class PreviewTextLayout extends AbstractLayout { protected Dimension calculatePreferredSize(IFigure container, int wHint, int hHint) { return container.getSize(); } public void layout(IFigure container) { org.eclipse.draw2d.geometry.Rectangle area = container.getClientArea(); org.eclipse.draw2d.geometry.Rectangle borderBounds = borderFigure.getBounds(); int textMargin = Util.isMac() ? 5 : 0; int bottomDownValue = 4; if (pageNumberLayer != null) { Dimension size = pageNumberLayer.getPreferredSize(-1, -1); int y = area.y + area.height - size.height - Math.max( (area.y + area.height - (borderBounds.y + borderBounds.height) - size.height) / 2, textMargin) + bottomDownValue; int x = area.x + (area.width - size.width) / 2; //todo set x position for pageNumberFigure when footer's horizontal position changed pageNumberLayer.setBounds(new org.eclipse.draw2d.geometry.Rectangle(x, y, area.width, size.height)); } if (headerFigure != null) { Dimension size = headerFigure.getPreferredSize(area.width, -1); int y = area.y + Math.max((borderBounds.y - area.y - size.height) / 2, textMargin); headerFigure .setBounds(new org.eclipse.draw2d.geometry.Rectangle(area.x, y, area.width, size.height)); } if (footerFigure != null) { Dimension size = footerFigure.getPreferredSize(area.width, -1); int y = area.y + area.height - size.height - Math.max( (area.y + area.height - (borderBounds.y + borderBounds.height) - size.height) / 2, textMargin) + bottomDownValue; footerFigure .setBounds(new org.eclipse.draw2d.geometry.Rectangle(area.x, y, area.width, size.height)); } } } private int prefWidth = PREF_WIDTH; private int prefHeight = PREF_HEIGHT; private double x = 0; private double y = 0; private double ratio = 1.0d; private Composite composite; private Composite backgroundImageComposite; private Image backgroundImage; private FigureCanvas canvas; private String title = null; private int titlePlacement = 0; private Label pageNumberLabel; private Label totalPagesLabel; private Label firstButton; private Label previousButton; private Label nextButton; private Label lastButton; private Image image; private Image wholeImage; public Image[] singleImages; private int imageIndex; private Layer feedbackLayer; private IFigure borderFigure; private ITextFigure headerFigure; private ITextFigure footerFigure; private IFigure textLayer; private IFigure pageNumberLayer; private ITextFigure pageNumberFigure; private Rectangle imageBorderBounds; private Font headerFont; private Font footerFont; private ResourceManager resources; private Listener eventHandler = new Listener() { public void handleEvent(Event event) { handleWidgetEvent(event); } }; public MultipageImagePreviewViewer(boolean fill) { } public void createControl(Composite parent) { composite = new Composite(parent, SWT.NONE); resources = new LocalResourceManager(JFaceResources.getResources(), composite); GridLayout layout = new GridLayout(); layout.marginHeight = 0; layout.marginWidth = 0; layout.horizontalSpacing = 0; layout.verticalSpacing = 0; composite.setLayout(layout); Composite composite2 = new Composite(composite, SWT.NONE); GridLayout layout2 = new GridLayout(); layout2.marginHeight = 0; layout2.marginWidth = 0; layout2.horizontalSpacing = 0; layout2.verticalSpacing = 10; composite2.setLayout(layout2); // composite2.setLayoutData( // new GridData(fill ? GridData.FILL : GridData.CENTER, // fill ? GridData.FILL : GridData.CENTER, true, true)); composite2.setLayoutData(new GridData(GridData.CENTER, GridData.CENTER, false, false)); createCanvas(composite2); createBarControls(composite2); } private void createCanvas(Composite parent) { //create background image composite backgroundImageComposite = new Composite(parent, SWT.NONE); backgroundImageComposite.setBackground(parent.getBackground()); backgroundImageComposite.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false)); GridLayout layout = new GridLayout(1, false); layout.marginHeight = 0; layout.marginWidth = 0; layout.marginLeft = 2; layout.marginTop = 1; layout.marginRight = 6; layout.marginBottom = 7; backgroundImageComposite.setLayout(layout); //create canvas LightweightSystem lws = new LightweightSystem(); canvas = new FigureCanvas(backgroundImageComposite, SWT.DOUBLE_BUFFERED, lws); canvas.setScrollBarVisibility(FigureCanvas.NEVER); GridData layoutData = new GridData(); layoutData.horizontalAlignment = GridData.FILL; layoutData.verticalAlignment = GridData.FILL; layoutData.grabExcessHorizontalSpace = true; layoutData.grabExcessVerticalSpace = true; layoutData.widthHint = getPrefWidth() + BORDER_WIDTH + BORDER_WIDTH; layoutData.heightHint = getPrefHeight() + BORDER_WIDTH + BORDER_WIDTH; canvas.setLayoutData(layoutData); hookCanvas(canvas, new Listener() { public void handleEvent(Event event) { handleCanvasEvent(event); } }); updateCanvas(); createFeedbackFigure(canvas); } private void createFeedbackFigure(FigureCanvas canvas) { canvas.setViewport(new Viewport(true)); feedbackLayer = new Layer(); canvas.getViewport().setContents(feedbackLayer); borderFigure = new Layer(); borderFigure.setBorder(new LineBorder( new LocalResourceManager(JFaceResources.getResources(), canvas) .createColor(ColorUtils.toRGB("#959595")), //$NON-NLS-1$ 1)); feedbackLayer.add(borderFigure); textLayer = new Layer(); textLayer.setLayoutManager(new PreviewTextLayout()); feedbackLayer.add(textLayer); headerFigure = new RotatableWrapLabel(RotatableWrapLabel.NORMAL); headerFigure.setForegroundColor(canvas.getDisplay().getSystemColor(SWT.COLOR_BLACK)); textLayer.add(headerFigure); footerFigure = new RotatableWrapLabel(RotatableWrapLabel.NORMAL); footerFigure.setForegroundColor(canvas.getDisplay().getSystemColor(SWT.COLOR_BLACK)); textLayer.add(footerFigure); pageNumberLayer = new Layer(); textLayer.add(pageNumberLayer); org.eclipse.draw2d.GridLayout gridLayout = new org.eclipse.draw2d.GridLayout(); gridLayout.marginHeight = 0; gridLayout.marginWidth = 0; pageNumberLayer.setLayoutManager(gridLayout); pageNumberFigure = new RotatableWrapLabel(RotatableWrapLabel.NORMAL); pageNumberFigure.setForegroundColor(canvas.getDisplay().getSystemColor(SWT.COLOR_BLACK)); org.eclipse.draw2d.GridData gridData = new org.eclipse.draw2d.GridData(SWT.FILL, SWT.FILL, true, true); pageNumberLayer.add(pageNumberFigure, gridData); } private void createBarControls(Composite parent) { Composite bar = new Composite(parent, SWT.NONE); GridData layoutData = new GridData(SWT.CENTER, SWT.CENTER, false, false); bar.setLayoutData(layoutData); GridLayout layout = new GridLayout(5, false); layout.marginWidth = 30; layout.horizontalSpacing = 0; layout.marginHeight = 0; bar.setLayout(layout); firstButton = new Label(bar, SWT.NONE); firstButton.setImage(getIcon("nav_first.png", true)); //$NON-NLS-1$ GridData firstButtonData = new GridData(SWT.CENTER, SWT.CENTER, false, false); firstButtonData.widthHint = firstButton.getImage().getBounds().width; firstButtonData.heightHint = firstButton.getImage().getBounds().height; firstButton.setLayoutData(firstButtonData); previousButton = new Label(bar, SWT.NONE); previousButton.setImage(getIcon("nav_previous.png", true)); //$NON-NLS-1$ GridData previousButtonData = new GridData(SWT.CENTER, SWT.CENTER, false, false); previousButtonData.widthHint = previousButton.getImage().getBounds().width; previousButtonData.heightHint = previousButton.getImage().getBounds().height; previousButton.setLayoutData(previousButtonData); Composite labelComposite = new Composite(bar, SWT.NONE); labelComposite.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false)); GridLayout layout2 = new GridLayout(3, false); layout2.marginWidth = 20; layout2.marginHeight = 0; layout2.horizontalSpacing = 10; layout2.verticalSpacing = 0; labelComposite.setLayout(layout2); pageNumberLabel = new Label(labelComposite, SWT.NONE); pageNumberLabel.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false)); pageNumberLabel.setText("0"); //$NON-NLS-1$ Label label1 = new Label(labelComposite, SWT.NONE); label1.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false)); label1.setText("of"); //$NON-NLS-1$ totalPagesLabel = new Label(labelComposite, SWT.NONE); totalPagesLabel.setLayoutData(new GridData(SWT.CENTER, SWT.CENTER, false, false)); totalPagesLabel.setText("0"); //$NON-NLS-1$ nextButton = new Label(bar, SWT.NONE); nextButton.setImage(getIcon("nav_next.png", true)); //$NON-NLS-1$ GridData nextButtonData = new GridData(SWT.CENTER, SWT.CENTER, false, false); nextButtonData.widthHint = nextButton.getImage().getBounds().width; nextButtonData.heightHint = nextButton.getImage().getBounds().height; nextButton.setLayoutData(nextButtonData); lastButton = new Label(bar, SWT.NONE); lastButton.setImage(getIcon("nav_last.png", true)); //$NON-NLS-1$ GridData lastButtonData = new GridData(SWT.CENTER, SWT.CENTER, false, false); lastButtonData.widthHint = lastButton.getImage().getBounds().width; lastButtonData.heightHint = lastButton.getImage().getBounds().height; lastButton.setLayoutData(lastButtonData); hookWidget(firstButton, SWT.MouseDown); hookWidget(previousButton, SWT.MouseDown); hookWidget(nextButton, SWT.MouseDown); hookWidget(lastButton, SWT.MouseDown); updateImageButtons(); } private void hookWidget(Widget widget, int eventType) { widget.addListener(eventType, eventHandler); } private void handleWidgetEvent(Event event) { if (!Boolean.TRUE.equals(event.widget.getData(ENABLED))) { return; } if (event.widget == firstButton) { setImageIndex(0); } else if (event.widget == previousButton) { setImageIndex(imageIndex == 0 ? 0 : imageIndex - 1); } else if (event.widget == nextButton) { setImageIndex(imageIndex == singleImages.length ? singleImages.length : imageIndex + 1); } else if (event.widget == lastButton) { setImageIndex(singleImages.length); } updateImageButtons(); initPreviewImageRatio(); } private void updateImageButtons() { firstButton.setData(ENABLED, singleImages != null && imageIndex != 0); previousButton.setData(ENABLED, singleImages != null && imageIndex != 0); nextButton.setData(ENABLED, singleImages != null && imageIndex != singleImages.length); lastButton.setData(ENABLED, singleImages != null && imageIndex != singleImages.length); updateButtonImages(); } public void disableImageButtons() { firstButton.setData(ENABLED, false); previousButton.setData(ENABLED, false); nextButton.setData(ENABLED, false); lastButton.setData(ENABLED, false); updateButtonImages(); } private void updateButtonImages() { firstButton.setImage(getIcon("nav_first.png", //$NON-NLS-1$ Boolean.TRUE.equals(firstButton.getData(ENABLED)))); previousButton.setImage(getIcon("nav_previous.png", //$NON-NLS-1$ Boolean.TRUE.equals(previousButton.getData(ENABLED)))); nextButton.setImage(getIcon("nav_next.png", //$NON-NLS-1$ Boolean.TRUE.equals(nextButton.getData(ENABLED)))); lastButton.setImage(getIcon("nav_last.png", //$NON-NLS-1$ Boolean.TRUE.equals(lastButton.getData(ENABLED)))); } public void setPrefSize(Point prefSize) { if (prefSize == null || (prefSize.x == getPrefWidth() && prefSize.y == getPrefHeight())) { return; } int oldPrefWidth = this.prefWidth; int oldPrefHeight = this.prefHeight; this.prefWidth = prefSize.x; this.prefHeight = prefSize.y; GridData gridData = (GridData) canvas.getLayoutData(); gridData.widthHint = getPrefWidth() + BORDER_WIDTH + BORDER_WIDTH; gridData.heightHint = getPrefHeight() + BORDER_WIDTH + BORDER_WIDTH; updatePrefSize(oldPrefWidth, oldPrefHeight); } public void updateBackgroundImageComposite(boolean showDetails, boolean landscape) { String backgroundImageName = showDetails ? (landscape ? "paper-details-landscape.png" //$NON-NLS-1$ : "paper-details-portrait.png") //$NON-NLS-1$ : (landscape ? "paper-simple-landscape.png" //$NON-NLS-1$ : "paper-simple-portrait.png"); //$NON-NLS-1$ backgroundImage = MindMapUI.getImages().get("icons/pages/" + backgroundImageName).createImage(); //$NON-NLS-1$ } public void updateBackgroundImage() { if (imageIndex != 0) { if (backgroundImageComposite.getBackgroundImage() == backgroundImage) { return; } backgroundImageComposite.setBackgroundImage(backgroundImage); GridData layoutData = (GridData) backgroundImageComposite.getLayoutData(); layoutData.widthHint = backgroundImageComposite.getBackgroundImage().getBounds().width; layoutData.heightHint = backgroundImageComposite.getBackgroundImage().getBounds().height; } else { backgroundImageComposite.setBackgroundImage(null); GridData layoutData = (GridData) backgroundImageComposite.getLayoutData(); layoutData.widthHint = SWT.DEFAULT; layoutData.heightHint = SWT.DEFAULT; } backgroundImageComposite.getShell().pack(); backgroundImageComposite.getShell().layout(true, true); } private void updateCanvas() { if (canvas != null && !canvas.isDisposed()) { canvas.setEnabled(getImage() != null); } } private void hookCanvas(Canvas canvas, Listener listener) { canvas.addListener(SWT.Paint, listener); canvas.addListener(SWT.Dispose, listener); } private void handleCanvasEvent(Event event) { switch (event.type) { case SWT.Paint: paintCanvas(event); break; case SWT.Dispose: handleWidgetDisposed(); break; } } private void handleWidgetDisposed() { if (wholeImage != null && !wholeImage.isDisposed()) { wholeImage.dispose(); } if (singleImages != null) { for (Image image : singleImages) { if (image != null && !image.isDisposed()) { image.dispose(); } } } if (image != null && !image.isDisposed()) { image.dispose(); } } private void paintCanvas(Event event) { GC gc = event.gc; Rectangle area = canvas.getClientArea(); gc.setClipping(area); drawImage(gc, area); drawTitle(gc, area); gc.setClipping(area); gc.setForeground(event.display.getSystemColor(SWT.COLOR_GRAY)); // gc.drawRectangle(area.x, area.y, area.width - 1, area.height - 1); canvas.getViewport().paint(new SWTGraphics(gc)); } private void drawTitle(GC gc, Rectangle area) { if (title == null) return; gc.setFont(composite.getFont()); gc.setForeground(composite.getForeground()); Point size = gc.stringExtent(title); int x, y; if ((titlePlacement & SWT.LEFT) != 0) { x = area.x + TEXT_MARGIN; } else if ((titlePlacement & SWT.RIGHT) != 0) { x = area.x + area.width - size.x - TEXT_MARGIN; } else { x = area.x + (area.width - size.x) / 2; } if ((titlePlacement & SWT.TOP) != 0) { y = area.y + TEXT_MARGIN; } else if ((titlePlacement & SWT.BOTTOM) != 0) { y = area.y + area.height - size.y - TEXT_MARGIN; } else { y = area.y + (area.height - size.y) / 2; } gc.drawString(title, x, y, true); } private void drawImage(GC gc, Rectangle area) { if (image != null && !image.isDisposed()) { drawImage(gc, area, image, image.getBounds()); } } private void drawImage(GC gc, Rectangle area, Image image, Rectangle imgSize) { double srcWidth = Math.min(imgSize.width, area.width / ratio); double srcHeight = Math.min(imgSize.height, area.height / ratio); double srcX = Math.max(0, Math.min(imgSize.width - srcWidth, x)); double srcY = Math.max(0, Math.min(imgSize.height - srcHeight, y)); double destWidth = srcWidth * ratio; double destHeight = srcHeight * ratio; double destX = area.x + BORDER_WIDTH + (area.width - BORDER_WIDTH - BORDER_WIDTH - destWidth) / 2; double destY = area.y + BORDER_WIDTH + (area.height - BORDER_WIDTH - BORDER_WIDTH - destHeight) / 2; gc.setAntialias(SWT.ON); gc.drawImage(image, (int) srcX, (int) srcY, (int) srcWidth, (int) srcHeight, (int) destX, (int) destY, (int) destWidth, (int) destHeight); } public void setPrefWidth(int prefWidth) { if (prefWidth == this.prefWidth) return; int oldPrefWidth = this.prefWidth; this.prefWidth = prefWidth; updatePrefSize(oldPrefWidth, getPrefHeight()); } public int getPrefWidth() { return prefWidth; } public void setPrefHeight(int prefHeight) { if (prefHeight == this.prefHeight) return; int oldPrefHeight = this.prefHeight; this.prefHeight = prefHeight; updatePrefSize(getPrefWidth(), oldPrefHeight); } public int getPrefHeight() { return prefHeight; } private void updatePrefSize(int oldPrefWidth, int oldPrefHeight) { if (calculatePrefRatio() != 0) { changeRatio(calculatePrefRatio(), oldPrefWidth, oldPrefHeight); } } private double calculatePrefRatio() { if (image != null && !image.isDisposed()) { Rectangle imgSize = image.getBounds(); double horizontalRatio = ((double) getPrefWidth()) / imgSize.width; double verticalRatio = ((double) getPrefHeight()) / imgSize.height; return Math.min(horizontalRatio, verticalRatio); } return 0; } private void setRatio(double ratio) { this.ratio = ratio; calculateFigureBorder(); } private double getRatio() { return ratio; } private void setX(double x) { this.x = x; } private void setY(double y) { this.y = y; } public Control getControl() { return composite; } public Canvas getCanvas() { return canvas; } public void setFocus() { if (canvas != null && !canvas.isDisposed()) { canvas.setFocus(); } } public void changeRatio(double ratio) { changeRatio(ratio, getPrefWidth(), getPrefHeight()); } private void changeRatio(double ratio, int oldPrefWidth, int oldPrefHeight) { double oldRatio = this.ratio; setRatio(ratio); double newRatio = this.ratio; if (image != null) { Rectangle imgSize = image.getBounds(); double oldWidth = Math.min(imgSize.width, oldPrefWidth / oldRatio); double oldHeight = Math.min(imgSize.height, oldPrefHeight / oldRatio); double oldCenterX = x + oldWidth / 2; double oldCenterY = y + oldHeight / 2; double newWidth = Math.min(imgSize.width, getPrefWidth() / newRatio); double newHeight = Math.min(imgSize.height, getPrefHeight() / newRatio); setX(Math.min(imgSize.width - newWidth, Math.max(0, oldCenterX - newWidth / 2))); setY(Math.min(imgSize.height - newHeight, Math.max(0, oldCenterY - newHeight / 2))); } updateFontHeight(); if (canvas != null && !canvas.isDisposed()) { canvas.redraw(); } } public void setImage(Image image) { if (image != null && !image.isDisposed()) { Rectangle imgSize = image.getBounds(); setImage(image, imgSize.x + imgSize.width / 2, imgSize.y + imgSize.height / 2); } else { setImage(null, 0, 0); } } public void setImage(Image image, double centerX, double centerY) { this.image = image; if (image != null) { Rectangle imgSize = image.getBounds(); double horizontalRatio = ((double) getPrefWidth()) / imgSize.width; double verticalRatio = ((double) getPrefHeight()) / imgSize.height; setRatio(Math.min(horizontalRatio, verticalRatio)); double width = Math.min(imgSize.width, getPrefWidth() / getRatio()); double height = Math.min(imgSize.height, getPrefHeight() / getRatio()); setX(Math.max(0, Math.min(imgSize.width - width, centerX - width / 2))); setY(Math.max(0, Math.min(imgSize.height - height, centerY - height / 2))); } if (canvas != null && !canvas.isDisposed()) { canvas.redraw(); } updateCanvas(); } public Image getImage() { return image; } public void setTitle(String title) { if (title == this.title || (title != null && title.equals(this.title))) return; this.title = title; if (canvas != null && !canvas.isDisposed()) { canvas.redraw(); } } public String getTitle() { return title; } public void setTitlePlacement(int titlePlacement) { if (titlePlacement == this.titlePlacement) return; this.titlePlacement = titlePlacement; if (canvas != null && !canvas.isDisposed()) { canvas.redraw(); } } public int getTitlePlacement() { return titlePlacement; } public void setWholeImage(Image wholeImage) { if (this.wholeImage != null) { this.wholeImage.dispose(); } this.wholeImage = wholeImage; } public void setSingleImages(Image[] singleImages) { if (this.singleImages != null) { for (Image image : this.singleImages) { if (image != null) { image.dispose(); } } } this.singleImages = singleImages; totalPagesLabel.setText("" + singleImages.length); //$NON-NLS-1$ totalPagesLabel.getParent().getParent().layout(); } private void calculateFigureBorder() { if (singleImages == null || singleImages.length == 0 || singleImages[0] == null || singleImages[0].isDisposed()) { return; } Rectangle area = canvas.getClientArea(); if (imageBorderBounds != null) { borderFigure.setBounds(new org.eclipse.draw2d.geometry.Rectangle((int) (imageBorderBounds.x * ratio), (int) (imageBorderBounds.y * ratio), (int) (imageBorderBounds.width * ratio + 2), (int) (imageBorderBounds.height * ratio + 1))); } textLayer.setBounds(new org.eclipse.draw2d.geometry.Rectangle(0, 0, area.width, area.height)); ((IFigure) (textLayer.getChildren().get(0))).revalidate(); } //make preview image just right full preview control public void initPreviewImageRatio() { if (getImage() != null && !getImage().isDisposed()) { double widthRatio = (double) getPrefWidth() / getImage().getBounds().width; double heightRatio = (double) getPrefHeight() / getImage().getBounds().height; double ratio = widthRatio < heightRatio ? widthRatio : heightRatio; changeRatio(ratio); } } public void setImageIndex(int imageIndex) { feedbackLayer.setVisible(imageIndex != 0); this.imageIndex = imageIndex; pageNumberLabel.setText("" + imageIndex); //$NON-NLS-1$ pageNumberLabel.getParent().getParent().layout(); String pageNumber = (imageIndex == 0 ? "" : "- " + imageIndex + " -"); //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ updatePageNumber(pageNumber); updateImageButtons(); updateBackgroundImage(); Image image = (imageIndex == 0 ? wholeImage : singleImages[imageIndex - 1]); setImage(image); } private void updatePageNumber(String text) { if (pageNumberFigure != null) { pageNumberFigure.setText(text); Font font = Display.getCurrent().getSystemFont(); int height = (font.getFontData())[0].getHeight(); font = FontUtils.getNewHeight(font, (int) (height * getFontRatio() * Show_Font_Multiple)); pageNumberFigure.setFont(font); pageNumberFigure.setVisible(!"".equals(text)); //$NON-NLS-1$ pageNumberFigure.revalidate(); canvas.layout(); } } private double getFontRatio() { if (image == null) { return ratio; } else { Rectangle bounds = image.getBounds(); int pageWidth = PrintConstants.PAGE_LENGTH; int pageHeight = PrintConstants.PAGE_SHORT; if (bounds.width < bounds.height) { pageWidth = PrintConstants.PAGE_SHORT; pageHeight = PrintConstants.PAGE_LENGTH; } double widthRatio = (double) getPrefWidth() / pageWidth; double heightRatio = (double) getPrefHeight() / pageHeight; return widthRatio < heightRatio ? widthRatio : heightRatio; } } public void setImageBorderBounds(Rectangle bounds) { this.imageBorderBounds = new Rectangle(bounds.x, bounds.y, bounds.width, bounds.height); } public void updateHeaderPreview(String text, String alignValue, int defaultDraw2DAlign, String fontValue) { updateHFPreview(text, alignValue, defaultDraw2DAlign, fontValue, headerFigure); } public void updateFooterPreview(String text, String alignValue, int defaultDraw2DAlign, String fontValue) { updateHFPreview(text, alignValue, defaultDraw2DAlign, fontValue, footerFigure); } private void updateHFPreview(String text, String alignValue, int defaultDraw2DAlign, String fontValue, ITextFigure textFigure) { if (textFigure != null) { textFigure.setText(text); textFigure.setTextAlignment(PrintConstants.toDraw2DAlignment(alignValue, defaultDraw2DAlign)); Font font = null; if (fontValue != null) { font = FontUtils.getFont(fontValue); } if (font == null) { font = Display.getCurrent().getSystemFont(); } if (textFigure == headerFigure) { headerFont = font; } else { footerFont = font; } int height = (font.getFontData())[0].getHeight(); font = FontUtils.getNewHeight(font, (int) (height * getFontRatio() * Show_Font_Multiple)); textFigure.setFont(font); textFigure.setVisible(!"".equals(text)); //$NON-NLS-1$ textFigure.revalidate(); canvas.layout(); } } public void setFeedbackVisible(boolean visible) { if (feedbackLayer != null) { feedbackLayer.setVisible(visible); } } public void setBorderVisible(boolean visible) { if (borderFigure != null) { borderFigure.setVisible(visible); canvas.layout(); } } public void setPageNumberVisible(boolean visible) { if (pageNumberLayer != null) { pageNumberLayer.setVisible(visible); canvas.layout(); } } private void updateFontHeight() { setFontHeightToPreview(headerFigure); setFontHeightToPreview(footerFigure); setFontHeightToPreview(pageNumberFigure); } private void setFontHeightToPreview(IFigure target) { if (target == null) { return; } Font font = target == pageNumberFigure ? Display.getCurrent().getSystemFont() : (target == headerFigure ? headerFont : footerFont); if (font == null) { return; } int height = (font.getFontData())[0].getHeight(); font = FontUtils.getNewHeight(font, (int) (height * getFontRatio() * Show_Font_Multiple)); target.setFont(font); } private Image getIcon(String path, boolean enabled) { return (Image) resources.get(MindMapUIPlugin.imageDescriptorFromPlugin(MindMapUI.PLUGIN_ID, "icons/nav/" + (enabled ? "e/" : "d/") + path)); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ } }