Java tutorial
/** * Sencha GXT 3.1.1 - Sencha for GWT * Copyright(c) 2007-2014, Sencha, Inc. * licensing@sencha.com * * http://www.sencha.com/products/gxt/license/ */ package edu.arizona.biosemantics.gxt.theme.green.client.sliced.button; import com.google.gwt.cell.client.Cell.Context; import com.google.gwt.core.client.GWT; import com.google.gwt.resources.client.ImageResource; import com.google.gwt.resources.client.ImageResource.ImageOptions; import com.google.gwt.resources.client.ImageResource.RepeatStyle; import com.google.gwt.safecss.shared.SafeStylesBuilder; import com.google.gwt.safehtml.shared.SafeHtmlBuilder; import com.google.gwt.safehtml.shared.SafeHtmlUtils; import com.sencha.gxt.cell.core.client.ButtonCell; import com.sencha.gxt.cell.core.client.ButtonCell.ButtonScale; import com.sencha.gxt.cell.core.client.ButtonCell.IconAlign; import com.sencha.gxt.cell.core.client.SplitButtonCell; import com.sencha.gxt.core.client.GXT; import com.sencha.gxt.core.client.resources.CommonStyles; import com.sencha.gxt.core.client.util.TextMetrics; import com.sencha.gxt.theme.base.client.button.ButtonCellDefaultAppearance; import com.sencha.gxt.theme.base.client.frame.Frame; import com.sencha.gxt.theme.base.client.frame.TableFrame; import edu.arizona.biosemantics.gxt.theme.green.client.ThemeDetails; public class SlicedButtonCellAppearance<C> extends ButtonCellDefaultAppearance<C> { public interface SlicedButtonCellResources extends ButtonCellResources { @Override @Source({ "com/sencha/gxt/theme/base/client/button/ButtonCell.css", "SlicedButtonCell.css", "SlicedToolBarButtonCell.css" }) SlicedButtonCellStyle style(); @ImageOptions(repeatStyle = RepeatStyle.None) @Source("edu/arizona/biosemantics/gxt/theme/green/client/base/button/arrow.png") ImageResource arrow(); @ImageOptions(repeatStyle = RepeatStyle.None) @Source("edu/arizona/biosemantics/gxt/theme/green/client/base/button/arrowBottom.png") ImageResource arrowBottom(); @ImageOptions(repeatStyle = RepeatStyle.None) @Source("edu/arizona/biosemantics/gxt/theme/green/client/base/button/split.png") ImageResource split(); @ImageOptions(repeatStyle = RepeatStyle.None) @Source("edu/arizona/biosemantics/gxt/theme/green/client/base/button/splitBottom.png") ImageResource splitBottom(); @ImageOptions(repeatStyle = RepeatStyle.None) @Source("edu/arizona/biosemantics/gxt/theme/green/client/base/button/toolBarArrow.png") ImageResource toolBarArrow(); @ImageOptions(repeatStyle = RepeatStyle.None) @Source("edu/arizona/biosemantics/gxt/theme/green/client/base/button/toolBarArrowBottom.png") ImageResource toolBarArrowBottom(); @ImageOptions(repeatStyle = RepeatStyle.None) @Source("edu/arizona/biosemantics/gxt/theme/green/client/base/button/toolBarButtonSplit.png") ImageResource toolBarSplit(); @ImageOptions(repeatStyle = RepeatStyle.None) @Source("edu/arizona/biosemantics/gxt/theme/green/client/base/button/toolBarButtonSplitBottom.png") ImageResource toolBarSplitBottom(); ThemeDetails theme(); } public interface SlicedButtonCellStyle extends ButtonCellStyle { } public SlicedButtonCellAppearance() { this(GWT.<SlicedButtonCellResources>create(SlicedButtonCellResources.class)); } public SlicedButtonCellAppearance(SlicedButtonCellResources resources) { super(resources, GWT.<ButtonCellTemplates>create(ButtonCellTemplates.class), new TableFrame( GWT.<SlicedButtonCellTableFrameResources>create(SlicedButtonCellTableFrameResources.class))); } @Override public void render(final ButtonCell<C> cell, Context context, C value, SafeHtmlBuilder sb) { String constantHtml = cell.getHTML(); boolean hasConstantHtml = constantHtml != null && constantHtml.length() != 0; boolean isBoolean = value != null && value instanceof Boolean; // is a boolean always a toggle button? String text = hasConstantHtml ? cell.getText() : (value != null && !isBoolean) ? SafeHtmlUtils.htmlEscape(value.toString()) : ""; ImageResource icon = cell.getIcon(); IconAlign iconAlign = cell.getIconAlign(); String cls = style.button(); String arrowCls = ""; if (cell.getMenu() != null) { if (cell instanceof SplitButtonCell) { switch (cell.getArrowAlign()) { case RIGHT: arrowCls = style.split(); break; case BOTTOM: arrowCls = style.splitBottom(); break; default: // empty } } else { switch (cell.getArrowAlign()) { case RIGHT: arrowCls = style.arrow(); break; case BOTTOM: arrowCls = style.arrowBottom(); break; } } } ButtonScale scale = cell.getScale(); switch (scale) { case SMALL: cls += " " + style.small(); break; case MEDIUM: cls += " " + style.medium(); break; case LARGE: cls += " " + style.large(); break; default: // empty } SafeStylesBuilder stylesBuilder = new SafeStylesBuilder(); int width = -1; if (cell.getWidth() != -1) { int w = cell.getWidth(); if (w < cell.getMinWidth()) { w = cell.getMinWidth(); } stylesBuilder.appendTrustedString("width:" + w + "px;"); cls += " " + style.hasWidth() + " x-has-width"; width = w; } else { if (cell.getMinWidth() != -1) { TextMetrics.get().bind(style.text()); int length = TextMetrics.get().getWidth(text); length += 6; // frames if (icon != null) { switch (iconAlign) { case LEFT: case RIGHT: length += icon.getWidth(); break; default: // empty } } } } final int height = cell.getHeight(); if (height != -1) { stylesBuilder.appendTrustedString("height:" + height + "px;"); } if (icon != null) { switch (iconAlign) { case TOP: arrowCls += " " + style.iconTop(); break; case BOTTOM: arrowCls += " " + style.iconBottom(); break; case LEFT: arrowCls += " " + style.iconLeft(); break; case RIGHT: arrowCls += " " + style.iconRight(); break; } } else { arrowCls += " " + style.noIcon(); } // toggle button if (value == Boolean.TRUE) { cls += " " + frame.pressedClass(); } sb.append(templates.outer(cls, new SafeStylesBuilder().toSafeStyles())); SafeHtmlBuilder inside = new SafeHtmlBuilder(); String innerWrap = arrowCls; if (GXT.isIE6() || GXT.isIE7()) { arrowCls += " " + CommonStyles.get().inlineBlock(); } inside.appendHtmlConstant("<div class='" + innerWrap + "'>"); inside.appendHtmlConstant("<table cellpadding=0 cellspacing=0 class='" + style.mainTable() + "'>"); boolean hasText = text != null && !text.equals(""); if (icon != null) { switch (iconAlign) { case LEFT: inside.appendHtmlConstant("<tr>"); writeIcon(inside, icon, height); if (hasText) { int w = width - (icon != null ? icon.getWidth() : 0) - 4; writeText(inside, text, w, height); } inside.appendHtmlConstant("</tr>"); break; case RIGHT: inside.appendHtmlConstant("<tr>"); if (hasText) { int w = width - (icon != null ? icon.getWidth() : 0) - 4; writeText(inside, text, w, height); } writeIcon(inside, icon, height); inside.appendHtmlConstant("</tr>"); break; case TOP: inside.appendHtmlConstant("<tr>"); writeIcon(inside, icon, height); inside.appendHtmlConstant("</tr>"); if (hasText) { inside.appendHtmlConstant("<tr>"); writeText(inside, text, width, height); inside.appendHtmlConstant("</tr>"); } break; case BOTTOM: if (hasText) { inside.appendHtmlConstant("<tr>"); writeText(inside, text, width, height); inside.appendHtmlConstant("</tr>"); } inside.appendHtmlConstant("<tr>"); writeIcon(inside, icon, height); inside.appendHtmlConstant("</tr>"); break; } } else { inside.appendHtmlConstant("<tr>"); if (text != null) { writeText(inside, text, width, height); } inside.appendHtmlConstant("</tr>"); } inside.appendHtmlConstant("</table>"); inside.appendHtmlConstant("</div>"); frame.render(sb, new Frame.FrameOptions(0, CommonStyles.get().noFocusOutline(), stylesBuilder.toSafeStyles()), inside.toSafeHtml()); sb.appendHtmlConstant("</div>"); } }