From 14691f1df154b9cde3e9fb00519f392a1bc3bc35 Mon Sep 17 00:00:00 2001 From: Artur Signell Date: Mon, 27 Oct 2008 13:21:58 +0000 Subject: [PATCH] Removed old OrderedLayout svn changeset:5737/svn branch:trunk --- .../gwt/client/ui/IOldOrderedLayout.java | 1603 ----------------- 1 file changed, 1603 deletions(-) delete mode 100644 src/com/itmill/toolkit/terminal/gwt/client/ui/IOldOrderedLayout.java diff --git a/src/com/itmill/toolkit/terminal/gwt/client/ui/IOldOrderedLayout.java b/src/com/itmill/toolkit/terminal/gwt/client/ui/IOldOrderedLayout.java deleted file mode 100644 index f6d9848952..0000000000 --- a/src/com/itmill/toolkit/terminal/gwt/client/ui/IOldOrderedLayout.java +++ /dev/null @@ -1,1603 +0,0 @@ -/* -@ITMillApache2LicenseForJavaFiles@ - */ - -package com.itmill.toolkit.terminal.gwt.client.ui; - -import java.util.HashMap; -import java.util.Iterator; -import java.util.Set; -import java.util.Vector; - -import com.google.gwt.user.client.DOM; -import com.google.gwt.user.client.Element; -import com.google.gwt.user.client.ui.Panel; -import com.google.gwt.user.client.ui.Widget; -import com.itmill.toolkit.terminal.gwt.client.ApplicationConnection; -import com.itmill.toolkit.terminal.gwt.client.BrowserInfo; -import com.itmill.toolkit.terminal.gwt.client.Container; -import com.itmill.toolkit.terminal.gwt.client.ContainerResizedListener; -import com.itmill.toolkit.terminal.gwt.client.ICaption; -import com.itmill.toolkit.terminal.gwt.client.Paintable; -import com.itmill.toolkit.terminal.gwt.client.RenderInformation; -import com.itmill.toolkit.terminal.gwt.client.RenderSpace; -import com.itmill.toolkit.terminal.gwt.client.UIDL; -import com.itmill.toolkit.terminal.gwt.client.RenderInformation.Size; - -/** - * Full implementation of OrderedLayout client peer. - * - * This class implements all features of OrderedLayout. It currently only - * supports use through UIDL updates. Direct client side use is not (currently) - * suported in all operation modes. - * - * - *

Features

- * - *

Orientation

- * - *

- * Orientation of the ordered layout declared whether the children are layouted - * horizontally or vertically. - *

- * - * - * - *

Spacing

- * - *

- * Spacing determines if there should be space between the children. Note that - * this does not imply margin. - *

- * - * - * - *

Margin

- * - *

- * Margin determines if there should be margin around children. Note that this - * does not imply spacing. - *

- * - * - * - *

Positioning the caption, icon, required indicator and error

- * - *

- * If the child lets the layout to handle captions, by icon, caption, required - * marker (*) and error icon are placed on top of the component area. Icon will - * be first and is followed by the caption. Required marker is placed right - * after the caption text and error icon is placed last. Note that all of these - * are optional: - *

- * - * - * - *

- * If the child lets the layout to handle captions, but the caption and icon are - * both missing, no line is reserved for the required marker (*) and error icon. - * Instead they are placed on the right side of the top of the component area. - * Required marker is placed right after the component text and error icon is - * placed last. If the component is tall, the indicators are aligned along the - * top of the component. Note that both of these indicators are optional: - *

- * - * - * - *

- * In case the child want to handle the caption by itself, layout does not - * repeat the caption. - *

- * - * - * - *

Aligning the children

- * - *

- * The children of the layout can be aligned horizontally and vertically: - *

- * - * - * - *

Fixed height, width or both

- * - *

- * When no size is explicitly specified, the size of the layout depends on the - * size of its children. If the size if specified, either explicitly or as - * percertages of the parent size, the size is equally divided between the - * children. In case some children might overflow out of the given space, they - * are cut to fit the given space. Note that the size can be independently - * specified for horizontal and vertical dimensions and is independent of the - * orientation. For example, layout can be horizontal and have fixed 300px - * height, but still measure its width from the child sizes. - *

- * - *

- * Horizontal layout with fixed width of 300px and height of 150px: - *

- * - * - *

- * Horizontal layout with fixed width of 300px: - *

- * - * - *

- * Horizontal layout with fixed height of 150px: - *

- * - * - * - *

CSS attributes

- * - *

- * Sizes for marginals and spacing can be specified for the ordered layout in - * CSS. For example, here are the defaults for OrderedLayout: - *

- * - * 
- * .i-orderedlayout-margin-top {
- *         padding-top: 15px;
- * }
- * .i-orderedlayout-margin-right {
- *         padding-right: 18px;
- * }
- * .i-orderedlayout-margin-bottom {
- *         padding-bottom: 15px;
- * }
- * .i-orderedlayout-margin-left {
- *         padding-left: 18px;
- * }
- * 
- * .i-orderedlayout-vspacing {
- *         margin-top: 8px;
- * }
- * .i-orderedlayout-hspacing {
- *         padding-left: 8px;
- * }
- *
- * - *

- * When a style-name is set for the layout, this name is included in the style. - * Note that the unspecified dimensions still default to the values given for - * the layout without style. For example, if we would like to give each layout - * with "tested-layout" style quite a bit larger right margin: - *

- * - * 
- * .i-orderedlayout-tested-layout-margin-right {
- *         padding-right: 100px;
- * }
- *
- * - *

- * Here is the rendering with getMargin(true). Note that all the other margins - * are set to the default values defined for the layout without stylename: - *

- * - * - * - *

DOM-structure

- * - * Note that DOM-structure is an implementation specific and might change in the - * future versions of IT Mill Toolkit. The purpose of this documentation is to - * to ease reading of the implementation and thus to make implementation of your - * own layouts easier. - * - *
OUTERDIV - * - *
Optional STRUCTURE - * - *
CHILDWRAPPER (for each - * child) - * - *
Optional ALIGNMENTWRAPPER - * - *
Optional CLIPPER - * - *
CAPTION ICON-IMG CAPTION-SPAN REQUIRED-SPAN ERRORINDICATOR-DIV - *
- * - *
Widget - * component
- * - *
- * - *
- * - *

- * Notes: - *

- *

- * - * - * @author IT Mill Ltd - */ -public class IOldOrderedLayout extends Panel implements Container, - ContainerResizedListener { - - public static final String CLASSNAME = "i-orderedlayout"; - - public static final int ORIENTATION_VERTICAL = 0; - public static final int ORIENTATION_HORIZONTAL = 1; - - /** - * If margin and spacing values has been calculated, this holds the values - * for the given UIDL style attribute . - */ - private static HashMap measuredMargins = new HashMap(); - - /** - * Spacing. Correct values will be set in - * updateMarginAndSpacingFromCSS(UIDL) - */ - private int hSpacing, vSpacing; - - /** - * Margin. Correct values will be set in updateMarginAndSpacingFromCSS(UIDL) - */ - private int marginTop, marginBottom, marginLeft, marginRight; - - int orientationMode = ORIENTATION_VERTICAL; - - protected ApplicationConnection client; - - /** - * Reference to Element where wrapped childred are contained. Normally a - * DIV, TR or a TBODY element. - */ - private Element wrappedChildContainer; - - /** - * List of child widgets. This is not the list of wrappers, but the actual - * widgets - */ - private final Vector childWidgets = new Vector(); - - /** - * In table mode, the root element is table instead of div. - */ - private boolean tableMode = false; - - /** - * Root element. This element points to the outmost table-element (in table - * mode) or outmost div (in non-table-mode). This non-table-mode this equals - * to the getElement(). - */ - private Element root = null; - - /** - * Last set width of the component. Null if undefined (instead of being ""). - */ - private String width = null; - - /** - * Last set height of the component. Null if undefined (instead of being - * ""). - */ - private String height = null; - /** - * List of child widget wrappers. These wrappers are in exact same indexes - * as the widgets in childWidgets list. - */ - private final Vector childWidgetWrappers = new Vector(); - - /** Whether the component has spacing enabled. */ - private boolean hasComponentSpacing; - - /** Information about margin states. */ - private MarginInfo margins = new MarginInfo(0); - - /** - * Flag that indicates that the child layouts must be updated as soon as - * possible. This will be done in the end of updateFromUIDL. - */ - private boolean childLayoutsHaveChanged = false; - - private boolean isRendering = false; - - private RenderInformation renderInformation = new RenderInformation(); - - /** - * Construct the DOM of the orderder layout. - * - *

- * There are two modes - vertical and horizontal. - *

    - *
  • Vertical mode uses structure: div-root ( div-wrap ( child ) div-wrap - * ( child ))).
    • - *
  • Horizontal mode uses structure: table ( tbody ( tr-childcontainer ( - * td-wrap ( child ) td-wrap ( child) )) )
    • - *
- * where root and childcontainer refer to the root element and the element - * that contain WidgetWrappers. - *

- * - */ - public IOldOrderedLayout() { - wrappedChildContainer = root = DOM.createDiv(); - setElement(wrappedChildContainer); - setStyleName(CLASSNAME); - } - - /** - * Update orientation, if it has changed. - * - * @param newOrientationMode - */ - private void rebuildRootDomStructure(int oldOrientationMode) { - - // Should we have table as a root element? - boolean newTableMode = !(orientationMode == ORIENTATION_VERTICAL && width != null); - - // Already in correct mode? - if (oldOrientationMode == orientationMode && newTableMode == tableMode) { - return; - } - boolean oldTableMode = tableMode; - tableMode = newTableMode; - - /* - * If the child are not detached before the parent is cleared with - * setInnerHTML the children will also be cleared in IE - */ - if (BrowserInfo.get().isIE()) { - while (true) { - Element child = DOM.getFirstChild(getElement()); - if (child != null) { - DOM.removeChild(getElement(), child); - } else { - break; - } - } - } - - // Constuct base DOM-structure and clean any already attached - // widgetwrappers from DOM. - if (tableMode) { - String structure = "" - : "") + "
"; - - DOM.setInnerHTML(getElement(), structure); - root = DOM.getFirstChild(getElement()); - // set TBODY to be the wrappedChildContainer - wrappedChildContainer = DOM.getFirstChild(root); - // In case of horizontal layouts, we must user TR instead of TBODY - if (orientationMode == ORIENTATION_HORIZONTAL) { - wrappedChildContainer = DOM - .getFirstChild(wrappedChildContainer); - } - } else { - root = wrappedChildContainer = getElement(); - DOM.setInnerHTML(getElement(), ""); - } - - // Reinsert all widget wrappers to this container - final int currentOrientationMode = orientationMode; - for (int i = 0; i < childWidgetWrappers.size(); i++) { - WidgetWrapper wr = childWidgetWrappers.get(i); - orientationMode = oldOrientationMode; - tableMode = oldTableMode; - Element oldWrElement = wr.getElementWrappingWidgetAndCaption(); - orientationMode = currentOrientationMode; - tableMode = newTableMode; - String classe = DOM.getElementAttribute(oldWrElement, "class"); - wr.resetRootElement(); - Element newWrElement = wr.getElementWrappingWidgetAndCaption(); - if (classe != null && classe.length() > 0) { - DOM.setElementAttribute(newWrElement, "class", classe); - } - while (DOM.getChildCount(oldWrElement) > 0) { - Element c = DOM.getFirstChild(oldWrElement); - DOM.removeChild(oldWrElement, c); - DOM.appendChild(newWrElement, c); - } - - DOM.appendChild(wrappedChildContainer, wr.getElement()); - } - - // Update child layouts - childLayoutsHaveChanged = true; - } - - /** Update the contents of the layout from UIDL. */ - public void updateFromUIDL(UIDL uidl, ApplicationConnection client) { - isRendering = true; - this.client = client; - - // Only non-cached UIDL:s can introduce changes - if (uidl.getBooleanAttribute("cached")) { - return; - } - - updateMarginAndSpacingSizesFromCSS(uidl); - - // Update sizes, ... - if (client.updateComponent(this, uidl, true)) { - return; - } - - // Rebuild DOM tree root if necessary - int oldO = orientationMode; - orientationMode = "horizontal".equals(uidl - .getStringAttribute("orientation")) ? ORIENTATION_HORIZONTAL - : ORIENTATION_VERTICAL; - rebuildRootDomStructure(oldO); - - // Handle component spacing later in handleAlignments() method - hasComponentSpacing = uidl.getBooleanAttribute("spacing"); - - // Collect the list of contained widgets after this update - final Vector newWidgets = new Vector(); - for (final Iterator it = uidl.getChildIterator(); it.hasNext();) { - final UIDL uidlForChild = (UIDL) it.next(); - final Paintable child = client.getPaintable(uidlForChild); - newWidgets.add(child); - } - - // Iterator for old widgets - final Iterator oldWidgetsIterator = (new Vector(childWidgets)) - .iterator(); - - // Iterator for new widgets - final Iterator newWidgetsIterator = newWidgets.iterator(); - - // Iterator for new UIDL - final Iterator newUIDLIterator = uidl.getChildIterator(); - - // List to collect all now painted widgets to in order to remove - // unpainted ones later - final Vector paintedWidgets = new Vector(); - - final Vector childsToPaint = new Vector(); - - // Add any new widgets to the ordered layout - Widget oldChild = null; - while (newWidgetsIterator.hasNext()) { - - final Widget newChild = (Widget) newWidgetsIterator.next(); - final UIDL newChildUIDL = (UIDL) newUIDLIterator.next(); - - // Remove any unneeded old widgets - if (oldChild == null && oldWidgetsIterator.hasNext()) { - // search for next old Paintable which still exists in layout - // and delete others - while (oldWidgetsIterator.hasNext()) { - oldChild = (Widget) oldWidgetsIterator.next(); - // now oldChild is an instance of Paintable - if (paintedWidgets.contains(oldChild)) { - continue; - } else if (newWidgets.contains(oldChild)) { - break; - } else { - remove(oldChild); - oldChild = null; - } - } - } - - if (oldChild == null) { - // we are adding components to the end of layout - add(newChild); - } else if (newChild == oldChild) { - // child already attached in correct position - oldChild = null; - } else if (hasChildComponent(newChild)) { - - // current child has been moved, re-insert before current - // oldChild - add(newChild, childWidgets.indexOf(oldChild)); - - } else { - // insert new child before old one - add(newChild, childWidgets.indexOf(oldChild)); - } - - // Update the child component - childsToPaint.add(new Object[] { newChild, newChildUIDL }); - - // Add this newly handled component to the list of painted - // components - paintedWidgets.add(newChild); - } - - // Remove possibly remaining old widgets which were not in painted UIDL - while (oldWidgetsIterator.hasNext()) { - oldChild = (Widget) oldWidgetsIterator.next(); - if (!newWidgets.contains(oldChild)) { - remove(oldChild); - } - } - - // Handle component alignments - handleAlignmentsSpacingAndMargins(uidl); - - // Reset sizes for the children - updateChildSizes(); - - // Paint children - for (int i = 0; i < childsToPaint.size(); i++) { - Object[] t = (Object[]) childsToPaint.get(i); - ((Paintable) t[0]).updateFromUIDL((UIDL) t[1], client); - } - - // Update child layouts - // TODO This is most probably unnecessary and should be done within - // update Child H/W - // if (childLayoutsHaveChanged) { - // client.runDescendentsLayout(this); - // childLayoutsHaveChanged = false; - // } - - /* Store the rendered size so we later can see if it has changed */ - if (renderInformation.updateSize(root)) { - client.runDescendentsLayout(this); - } - - isRendering = false; - - } - - private void updateMarginAndSpacingSizesFromCSS(UIDL uidl) { - - // Style for this layout - String style = uidl.getStringAttribute("style"); - if (style == null) { - style = ""; - } - - // Try to find measured from cache - int[] r = (int[]) measuredMargins.get(style); - - // Measure from DOM - if (r == null) { - r = new int[] { 0, 0, 0, 0, 0, 0 }; - - // Construct DOM for measurements - Element e1 = DOM.createTable(); - DOM.setStyleAttribute(e1, "position", "absolute"); - DOM.setElementProperty(e1, "cellSpacing", "0"); - DOM.setElementProperty(e1, "cellPadding", "0"); - Element e11 = DOM.createTBody(); - Element e12 = DOM.createTR(); - Element e13 = DOM.createTD(); - Element e2 = DOM.createDiv(); - Element e3 = DOM.createDiv(); - DOM.setStyleAttribute(e3, "width", "100px"); - DOM.setStyleAttribute(e3, "height", "100px"); - DOM.appendChild(getElement(), e1); - DOM.appendChild(e1, e11); - DOM.appendChild(e11, e12); - DOM.appendChild(e12, e13); - DOM.appendChild(e13, e2); - DOM.appendChild(e2, e3); - DOM.setInnerText(e3, "."); - - // Measure different properties - final String[] classes = { "margin-top", "margin-right", - "margin-bottom", "margin-left", "vspacing", "hspacing" }; - for (int c = 0; c < 6; c++) { - StringBuffer styleBuf = new StringBuffer(); - final String primaryName = getStylePrimaryName(); - styleBuf.append(primaryName + "-" + classes[c]); - if (style.length() > 0) { - final String[] styles = style.split(" "); - for (int i = 0; i < styles.length; i++) { - styleBuf.append(" "); - styleBuf.append(primaryName); - styleBuf.append("-"); - styleBuf.append(styles[i]); - styleBuf.append("-"); - styleBuf.append(classes[c]); - } - } - DOM.setElementProperty(e2, "className", styleBuf.toString()); - - // Measure - r[c] = DOM.getElementPropertyInt(e1, - (c % 2) == 1 ? "offsetWidth" : "offsetHeight") - 100; - } - - // Clean-up - DOM.removeChild(getElement(), e1); - - // Cache for further use - measuredMargins.put(style, r); - } - - // Set the properties - marginTop = r[0]; - marginRight = r[1]; - marginBottom = r[2]; - marginLeft = r[3]; - vSpacing = r[4]; - hSpacing = r[5]; - } - - /** - * While setting width, ensure that margin div is also resized properly. - * Furthermore, enable/disable fixed mode - */ - public void setWidth(String newWidth) { - super.setWidth(newWidth); - - if (newWidth == null || newWidth.equals("")) { - width = null; - } else { - width = newWidth; - } - - // Update child layouts - childLayoutsHaveChanged = true; - } - - /** - * While setting height, ensure that margin div is also resized properly. - * Furthermore, enable/disable fixed mode - */ - public void setHeight(String newHeight) { - super.setHeight(newHeight); - height = newHeight == null || "".equals(newHeight) ? null : newHeight; - - // Update child layouts - childLayoutsHaveChanged = true; - } - - /** Recalculate and apply the space given for each child in this layout. */ - private void updateChildSizes() { - - int numChild = childWidgets.size(); - int childHeightTotal = -1; - int childHeightDivisor = 1; - int childWidthTotal = -1; - int childWidthDivisor = 1; - - // Vertical layout is calculated by us - if (height != null) { - - if (height.endsWith("px")) { - childHeightTotal = Integer.parseInt(height.substring(0, height - .length() - 2)); - } else { - // TODO This might be wrong but only reached if height is - // specified by other means than pixels or % - childHeightTotal = getElement().getOffsetHeight(); - } - - // Calculate the space for fixed contents minus marginals - childHeightTotal = getElement().getOffsetHeight(); - - childHeightTotal -= margins.hasTop() ? marginTop : 0; - childHeightTotal -= margins.hasBottom() ? marginBottom : 0; - - // Reduce spacing from the size - if (hasComponentSpacing) { - childHeightTotal -= ((orientationMode == ORIENTATION_HORIZONTAL) ? hSpacing - : vSpacing) - * (numChild - 1); - } - - // Total space is divided among the children - if (orientationMode == ORIENTATION_VERTICAL) { - childHeightDivisor = numChild; - } - } - - // layout is calculated by us - if (width != null) { - - if (width.endsWith("px")) { - childWidthTotal = Integer.parseInt(width.substring(0, width - .length() - 2)); - } else { - // TODO This might be wrong but only reached if width is - // specified by other means than pixels or % - childWidthTotal = getElement().getOffsetWidth(); - } - - childWidthTotal -= margins.hasLeft() ? marginLeft : 0; - childWidthTotal -= margins.hasRight() ? marginRight : 0; - - // Reduce spacing from the size - if (hasComponentSpacing - && orientationMode == ORIENTATION_HORIZONTAL) { - childWidthTotal -= hSpacing * (numChild - 1); - } - - // Total space is divided among the children - if (orientationMode == ORIENTATION_HORIZONTAL) { - childWidthDivisor = numChild; - } - } - - // Set the sizes for each child - for (Iterator i = childWidgetWrappers.iterator(); i.hasNext();) { - int w, h; - if (childHeightDivisor > 1) { - h = Math.round(((float) childHeightTotal) - / (childHeightDivisor--)); - childHeightTotal -= h; - } else { - h = childHeightTotal; - } - if (childWidthDivisor > 1) { - w = Math.round(((float) childWidthTotal) - / (childWidthDivisor--)); - childWidthTotal -= w; - } else { - w = childWidthTotal; - } - WidgetWrapper ww = (WidgetWrapper) i.next(); - ww.forceSize(w, h); - - } - } - - /** Parse alignments from UIDL and pass whem to correct widgetwrappers */ - private void handleAlignmentsSpacingAndMargins(UIDL uidl) { - - // Only update margins when they have changed - // TODO this should be optimized to avoid reupdating these - margins = new MarginInfo(uidl.getIntAttribute("margins")); - - // Component alignments as a comma separated list. - // See com.itmill.toolkit.terminal.gwt.client.ui.AlignmentInfo.java for - // possible values. - final int[] alignments = uidl.getIntArrayAttribute("alignments"); - int alignmentIndex = 0; - - // Insert alignment attributes - final Iterator it = childWidgetWrappers.iterator(); - - while (it.hasNext()) { - - // Calculate alignment info - final AlignmentInfo ai = new AlignmentInfo( - alignments[alignmentIndex++]); - - final WidgetWrapper wr = (WidgetWrapper) it.next(); - - wr.setAlignment(ai.getVerticalAlignment(), ai - .getHorizontalAlignment()); - - // Handle spacing and margins in this loop as well - wr.setSpacingAndMargins(alignmentIndex == 1, - alignmentIndex == alignments.length); - } - } - - /** - * Wrapper around single child in the layout. - * - * This helper also manages spacing, margins and alignment for individual - * cells handling. It also can put hard size limits for its contens by - * clipping the content to given pixel size. - * - */ - class WidgetWrapper { - - /** - * When alignment table structure is used, these elements correspond to - * the TD elements within the structure. If alignment is not used, these - * are null. - */ - Element alignmentTD, innermostTDinAlignmnetStructure; - - /** - * When clipping must be done and the element wrapping clipped content - * would be TD instead of DIV, this element points to additional DIV - * that is used for clipping. - */ - Element clipperDiv; - - /** Caption element when used. */ - ICaption caption = null; - Size captionSize = new Size(-1, -1); - - /** - * Last set pixel height for the wrapper. -1 if vertical clipping is not - * used. - */ - int lastForcedPixelHeight = -1; - - /** - * Last set pixel width for the wrapper. -1 if horizontal clipping is - * not used. - */ - int lastForcedPixelWidth = -1; - - int horizontalPadding = 0, verticalPadding = 0; - - /** Widget Wrapper root element */ - Element wrapperElement; - - private String horizontalAlignment = "left"; - - private String verticalAlignment = "top"; - - /** Set the root element */ - public WidgetWrapper() { - resetRootElement(); - } - - public Element getElement() { - return wrapperElement; - } - - /** - * Set the width and height given for the wrapped widget in pixels. - * - * -1 if unconstrained. - */ - public void forceSize(int pixelWidth, int pixelHeight) { - - // If we are already at the correct size, do nothing - if (lastForcedPixelHeight == pixelHeight - && lastForcedPixelWidth == pixelWidth) { - return; - } - - // Clipper DIV is needed? - if (tableMode && (pixelHeight >= 0 || pixelWidth >= 0)) { - if (clipperDiv == null) { - createClipperDiv(); - } - } - - // ClipperDiv is not needed, remove if necessary - else if (clipperDiv != null) { - removeClipperDiv(); - } - - Element e = clipperDiv != null ? clipperDiv - : getElementWrappingAlignmentStructures(); - - // Overflow - DOM.setStyleAttribute(e, "overflow", pixelWidth < 0 - && pixelHeight < 0 ? "" : "hidden"); - - // Set size - DOM.setStyleAttribute(e, "width", pixelWidth < 0 ? "" : pixelWidth - + "px"); - - if (pixelHeight >= 0) { - DOM.setStyleAttribute(e, "height", pixelHeight + "px"); - } else { - if (e == clipperDiv && !BrowserInfo.get().isIE()) { - DOM.setStyleAttribute(e, "height", "100%"); - } - - } - - // Set cached values - lastForcedPixelWidth = pixelWidth; - lastForcedPixelHeight = pixelHeight; - } - - /** Create a DIV for clipping the child */ - private void createClipperDiv() { - clipperDiv = DOM.createDiv(); - final Element e = getElementWrappingClipperDiv(); - String clipperClass = "i-orderedlayout-cl-" - + (orientationMode == ORIENTATION_HORIZONTAL ? "h" : "v"); - - String elementClass = e.getClassName(); - - if (elementClass != null && elementClass.length() > 0) { - clipperClass += " " + elementClass; - } - - while (DOM.getChildCount(e) > 0) { - final Element c = DOM.getFirstChild(e); - DOM.removeChild(e, c); - DOM.appendChild(clipperDiv, c); - } - - if (elementClass != null && elementClass.length() > 0) { - e.setClassName(""); - } - - DOM.appendChild(e, clipperDiv); - clipperDiv.setClassName(clipperClass); - - } - - /** Undo createClipperDiv() */ - private void removeClipperDiv() { - final Element e = getElementWrappingClipperDiv(); - String clipperClass = clipperDiv.getClassName(); - - String elementClass = clipperClass.replaceAll( - "i-orderedlayout-cl-.", "").trim(); - while (DOM.getChildCount(clipperDiv) > 0) { - final Element c = DOM.getFirstChild(clipperDiv); - DOM.removeChild(clipperDiv, c); - DOM.appendChild(e, c); - } - DOM.removeChild(e, clipperDiv); - clipperDiv = null; - if (elementClass != null && elementClass.length() > 0) { - e.setClassName(elementClass); - } - } - - /** - * Get the element containing the caption and the wrapped widget. - * Returned element can one of the following: - *
    - *
  • (a) Root DIV of the WrapperElement when not in tableMode
    • - *
  • (b) TD in just below the root TR of the WrapperElement when in - * tableMode
    • - *
  • (c) clipperDiv inside the (a) or (b)
    • - *
  • (d) The innermost TD within alignment structures located in (a), - * (b) or (c)
    • - *
- * - * @return Element described above - */ - private Element getElementWrappingWidgetAndCaption() { - - // When alignment is used, we will can safely return the innermost - // TD - if (innermostTDinAlignmnetStructure != null) { - return innermostTDinAlignmnetStructure; - } - - // In all other cases element wrapping the potential alignment - // structures is the correct one - return getElementWrappingAlignmentStructures(); - } - - /** - * Get the element where alignment structures should be placed in if - * they are in use. - * - * Returned element can one of the following: - *
    - *
  • (a) Root DIV of the WrapperElement when not in tableMode
    • - *
  • (b) TD in just below the root TR of the WrapperElement when in - * tableMode
    • - *
  • (c) clipperDiv inside the (a) or (b)
    • - *
- * - * @return Element described above - */ - private Element getElementWrappingAlignmentStructures() { - - // Clipper DIV wraps the alignment structures if present - if (clipperDiv != null) { - return clipperDiv; - } - - // When Clipper DIV is not used, we just give the element - // that would wrap it if it would be used - return getElementWrappingClipperDiv(); - } - - /** - * Get the element where clipperDiv should be placed in if they it is in - * use. - * - * Returned element can one of the following: - *
    - *
  • (a) Root DIV of the WrapperElement when not in tableMode
    • - *
  • (b) TD in just below the root TR of the WrapperElement when in - * tableMode
    • - *
- * - * @return Element described above - */ - private Element getElementWrappingClipperDiv() { - - // Only vertical layouts in non-table mode use TR as root, for the - // rest we can safely give root element - if (!tableMode || orientationMode == ORIENTATION_HORIZONTAL) { - return wrapperElement; - } - - // The root is TR, we'll thus give the TD that is immediately within - // the root - return DOM.getFirstChild(wrapperElement); - } - - /** - * Create tr, td or div - depending on the orientation of the layout and - * set it as root. - * - * All contents of the wrapper are cleared. Caller is responsible for - * preserving the contents and moving them into new root. - * - * @return Previous root element. - */ - private void resetRootElement() { - // TODO Should we remove the existing element? - if (tableMode) { - if (orientationMode == ORIENTATION_HORIZONTAL) { - wrapperElement = DOM.createTD(); - DOM.setStyleAttribute(wrapperElement, "height", "100%"); - } else { - wrapperElement = DOM.createTR(); - DOM.appendChild(wrapperElement, DOM.createTD()); - } - } else { - wrapperElement = DOM.createDiv(); - // Apply 'hasLayout' for IE (needed to get accurate dimension - // calculations) - if (BrowserInfo.get().isIE()) { - DOM.setStyleAttribute(wrapperElement, "zoom", "1"); - } - } - - // Clear any references to intermediate elements - clipperDiv = alignmentTD = innermostTDinAlignmnetStructure = null; - } - - /** Update the caption of the element contained in this wrapper. */ - public void updateCaption(UIDL uidl, Paintable paintable) { - - final Widget widget = (Widget) paintable; - final Element captionWrapper = getElementWrappingWidgetAndCaption(); - - boolean captionDimensionOrPositionUpdated = false; - - // The widget needs caption - if (ICaption.isNeeded(uidl)) { - - // If the caption element is missing, create it - boolean justAdded = false; - if (caption == null) { - justAdded = true; - caption = new ICaption(paintable, client); - } - - // Update caption contents - caption.updateCaption(uidl); - - caption.setAlignment(horizontalAlignment); - - int captionHeight = caption.getElement().getOffsetHeight(); - int captionWidth = caption.getElement().getOffsetWidth(); - if (captionHeight != captionSize.getHeight() - || captionWidth != captionSize.getWidth()) { - captionSize = new Size(captionWidth, captionHeight); - captionDimensionOrPositionUpdated = true; - } - - final boolean after = caption.shouldBePlacedAfterComponent(); - final Element captionElement = caption.getElement(); - final Element widgetElement = widget.getElement(); - - if (justAdded) { - - // As the caption has just been created, insert it to DOM - if (after) { - DOM.appendChild(captionWrapper, captionElement); - DOM.setElementAttribute(captionWrapper, "class", - "i-orderedlayout-w"); - caption.addStyleName("i-orderedlayout-c"); - widget.addStyleName("i-orderedlayout-w-e"); - } else { - DOM.insertChild(captionWrapper, captionElement, 0); - } - - captionDimensionOrPositionUpdated = true; - } else if (after == (DOM.getChildIndex(captionWrapper, - widgetElement) > DOM.getChildIndex(captionWrapper, - captionElement))) { - // Caption exists. Move it to correct position if it is not - // there - Element firstElement = DOM.getChild(captionWrapper, DOM - .getChildCount(captionWrapper) - 2); - if (firstElement != null) { - DOM.removeChild(captionWrapper, firstElement); - DOM.appendChild(captionWrapper, firstElement); - } - DOM.setElementAttribute(captionWrapper, "class", - after ? "i-orderedlayout-w" : ""); - if (after) { - caption.addStyleName("i-orderedlayout-c"); - widget.addStyleName("i-orderedlayout-w-e"); - } else { - widget.removeStyleName("i-orderedlayout-w-e"); - caption.removeStyleName("i-orderedlayout-w-c"); - } - - captionDimensionOrPositionUpdated = true; - } else { - if (after) { - widget.addStyleName("i-orderedlayout-w-e"); - } else { - widget.removeStyleName("i-orderedlayout-w-e"); - } - } - - } else { - // Caption is not needed - - // Remove existing caption from DOM - if (caption != null) { - DOM.removeChild(captionWrapper, caption.getElement()); - caption = null; - DOM.setElementAttribute(captionWrapper, "class", ""); - widget.removeStyleName("i-orderedlayout-w-e"); - - captionDimensionOrPositionUpdated = true; - } - } - - if (captionDimensionOrPositionUpdated) { - client.handleComponentRelativeSize((Widget) paintable); - } - } - - /** - * Set alignments for this wrapper. - */ - void setAlignment(String verticalAlignment, String horizontalAlignment) { - this.verticalAlignment = verticalAlignment; - this.horizontalAlignment = horizontalAlignment; - - // use one-cell table to implement horizontal alignments, only - // for values other than top-left (which is default) - if (!horizontalAlignment.equals("left") - || !verticalAlignment.equals("top")) { - - // The previous positioning has been left (or unspecified). - // Thus we need to create a one-cell-table to position - // this element. - if (alignmentTD == null) { - - // Store and remove the current childs (widget and caption) - Element c1 = DOM - .getFirstChild(getElementWrappingWidgetAndCaption()); - if (c1 != null) { - DOM.removeChild(getElementWrappingWidgetAndCaption(), - c1); - } - Element c2 = DOM - .getFirstChild(getElementWrappingWidgetAndCaption()); - if (c2 != null) { - DOM.removeChild(getElementWrappingWidgetAndCaption(), - c2); - } - - // Construct table structure to align children - String alignmentTableStructure = "
" - + "
"; - DOM.setInnerHTML(getElementWrappingWidgetAndCaption(), - alignmentTableStructure); - alignmentTD = DOM - .getFirstChild(DOM - .getFirstChild(DOM - .getFirstChild(DOM - .getFirstChild(getElementWrappingWidgetAndCaption())))); - innermostTDinAlignmnetStructure = DOM.getFirstChild(DOM - .getFirstChild(DOM.getFirstChild(DOM - .getFirstChild(alignmentTD)))); - - // Restore children inside the - if (c1 != null) { - DOM.appendChild(innermostTDinAlignmnetStructure, c1); - if (c2 != null) { - DOM - .appendChild( - innermostTDinAlignmnetStructure, c2); - } - } - - } else { - - // Go around optimization bug in WebKit and ensure repaint - if (BrowserInfo.get().isSafari()) { - String prevValue = DOM.getElementAttribute(alignmentTD, - "align"); - if (!horizontalAlignment.equals(prevValue)) { - Element parent = DOM.getParent(alignmentTD); - DOM.removeChild(parent, alignmentTD); - DOM.appendChild(parent, alignmentTD); - } - } - - } - - // Set the alignment in td - DOM.setElementAttribute(alignmentTD, "align", - horizontalAlignment); - DOM.setElementAttribute(alignmentTD, "vAlign", - verticalAlignment); - - } else { - - // In this case we are requested to position this left - // while as it has had some other position in the past. - // Thus the one-cell wrapper table must be removed. - if (alignmentTD != null) { - - // Move content to main container - final Element itd = innermostTDinAlignmnetStructure; - final Element alignmentTable = DOM.getParent(DOM - .getParent(DOM.getParent(alignmentTD))); - final Element target = DOM.getParent(alignmentTable); - while (DOM.getChildCount(itd) > 0) { - Element content = DOM.getFirstChild(itd); - if (content != null) { - DOM.removeChild(itd, content); - DOM.appendChild(target, content); - } - } - - // Remove unneeded table element - DOM.removeChild(target, alignmentTable); - - alignmentTD = innermostTDinAlignmnetStructure = null; - } - } - - DOM.setStyleAttribute(getElementWrappingWidgetAndCaption(), - "textAlign", horizontalAlignment); - - } - - /** Set class for spacing */ - void setSpacingAndMargins(boolean first, boolean last) { - - final Element e = getElementWrappingWidgetAndCaption(); - - int paddingLeft = 0, paddingRight = 0, paddingTop = 0, paddingBottom = 0; - - if (orientationMode == ORIENTATION_HORIZONTAL) { - if (first) { - if (margins.hasLeft()) { - paddingLeft = marginLeft; - } - } else if (hasComponentSpacing) { - paddingLeft = hSpacing; - } - - if (last) { - if (margins.hasRight()) { - paddingRight = marginRight; - } - } - - if (margins.hasTop()) { - paddingTop = marginTop; - } - if (margins.hasBottom()) { - paddingBottom = marginBottom; - } - - } else { - if (margins.hasLeft()) { - paddingLeft = marginLeft; - } - if (margins.hasRight()) { - paddingRight = marginRight; - } - - if (first) { - if (margins.hasTop()) { - paddingTop = marginTop; - } - } else if (hasComponentSpacing) { - paddingTop = vSpacing; - } - if (last && margins.hasBottom()) { - paddingBottom = marginBottom; - } - - } - - horizontalPadding = paddingLeft + paddingRight; - verticalPadding = paddingTop + paddingBottom; - - DOM.setStyleAttribute(e, "paddingLeft", paddingLeft + "px"); - DOM.setStyleAttribute(e, "paddingRight", paddingRight + "px"); - - DOM.setStyleAttribute(e, "paddingTop", paddingTop + "px"); - DOM.setStyleAttribute(e, "paddingBottom", paddingBottom + "px"); - } - - public int getAllocatedHeight() { - int reduce = verticalPadding; - if (caption != null) { - if (orientationMode == ORIENTATION_VERTICAL - || (orientationMode == ORIENTATION_HORIZONTAL && !caption - .shouldBePlacedAfterComponent())) { - reduce += caption.getHeight(); - } - } - - if (lastForcedPixelHeight == -1) { - if (height == null) { - /* - * We have no height specified so return the space allocated - * by components so far - */ - - return getElementWrappingClipperDiv().getOffsetHeight() - - reduce; - } - - // This should not be possible... - return 0; - } else { - return lastForcedPixelHeight; - } - - } - - public int getAllocatedWidth() { - int reduce = horizontalPadding; - if (caption != null && caption.shouldBePlacedAfterComponent()) { - reduce += caption.getWidth(); - } - - if (width == null) { - /* - * We have no width specified so return the space allocated by - * components so far - */ - return getElementWrappingClipperDiv().getOffsetWidth() - reduce; - } else if (lastForcedPixelWidth > -1) { - return lastForcedPixelWidth; - } else { - return 0; - } - } - - } - - /* documented at super */ - public void add(Widget child) { - add(child, childWidgets.size()); - } - - /** - * Add widget to this layout at given position. - * - * This methods supports reinserting exiting child into layout - it just - * moves the position of the child in the layout. - */ - public void add(Widget child, int atIndex) { - /* - * Validate: Perform any sanity checks to ensure the Panel can - * accept a new Widget. Examples: checking for a valid index on - * insertion; checking that the Panel is not full if there is a max - * capacity. - */ - if (atIndex < 0 || atIndex > childWidgets.size()) { - return; - } - - /* - * Adjust for Reinsertion: Some Panels need to handle the case - * where the Widget is already a child of this Panel. Example: when - * performing a reinsert, the index might need to be adjusted to account - * for the Widget's removal. See {@link ComplexPanel#adjustIndex(Widget, - * int)}. - */ - if (childWidgets.contains(child)) { - if (childWidgets.indexOf(child) == atIndex) { - return; - } - - final int removeFromIndex = childWidgets.indexOf(child); - final WidgetWrapper wrapper = childWidgetWrappers - .get(removeFromIndex); - Element wrapperElement = wrapper.getElement(); - final int nonWidgetChildElements = DOM - .getChildCount(wrappedChildContainer) - - childWidgets.size(); - DOM.removeChild(wrappedChildContainer, wrapperElement); - DOM.insertChild(wrappedChildContainer, wrapperElement, atIndex - + nonWidgetChildElements); - childWidgets.remove(removeFromIndex); - childWidgetWrappers.remove(removeFromIndex); - childWidgets.insertElementAt(child, atIndex); - childWidgetWrappers.insertElementAt(wrapper, atIndex); - return; - } - - /* - * Detach Child: Remove the Widget from its existing parent, if - * any. Most Panels will simply call {@link Widget#removeFromParent()} - * on the Widget. - */ - child.removeFromParent(); - - /* - * Logical Attach: Any state variables of the Panel should be - * updated to reflect the addition of the new Widget. Example: the - * Widget is added to the Panel's {@link WidgetCollection} at the - * appropriate index. - */ - childWidgets.insertElementAt(child, atIndex); - - /* - * Physical Attach: The Widget's Element must be physically - * attached to the Panel's Element, either directly or indirectly. - */ - final WidgetWrapper wrapper = new WidgetWrapper(); - final int nonWidgetChildElements = DOM - .getChildCount(wrappedChildContainer) - - childWidgetWrappers.size(); - childWidgetWrappers.insertElementAt(wrapper, atIndex); - DOM.insertChild(wrappedChildContainer, wrapper.getElement(), atIndex - + nonWidgetChildElements); - DOM.appendChild(wrapper.getElementWrappingWidgetAndCaption(), child - .getElement()); - - /* - * Adopt: Call {@link #adopt(Widget)} to finalize the add as the - * very last step. - */ - adopt(child); - } - - /* documented at super */ - public boolean remove(Widget child) { - - /* - * Validate: Make sure this Panel is actually the parent of the - * child Widget; return false if it is not. - */ - if (!childWidgets.contains(child)) { - return false; - } - - /* - * Orphan: Call {@link #orphan(Widget)} first while the child - * Widget is still attached. - */ - orphan(child); - - /* - * Physical Detach: Adjust the DOM to account for the removal of - * the child Widget. The Widget's Element must be physically removed - * from the DOM. - */ - final int index = childWidgets.indexOf(child); - final WidgetWrapper wrapper = childWidgetWrappers.get(index); - DOM.removeChild(wrappedChildContainer, wrapper.getElement()); - childWidgetWrappers.remove(index); - - /* - * Logical Detach: Update the Panel's state variables to reflect - * the removal of the child Widget. Example: the Widget is removed from - * the Panel's {@link WidgetCollection}. - */ - childWidgets.remove(index); - - if (child instanceof Paintable) { - client.unregisterPaintable((Paintable) child); - } - - return true; - } - - /* documented at super */ - public boolean hasChildComponent(Widget component) { - return childWidgets.contains(component); - } - - /* documented at super */ - public void replaceChildComponent(Widget oldComponent, Widget newComponent) { - final int index = childWidgets.indexOf(oldComponent); - if (index >= 0) { - client.unregisterPaintable((Paintable) oldComponent); - remove(oldComponent); - add(newComponent, index); - } - } - - /* documented at super */ - public void updateCaption(Paintable component, UIDL uidl) { - final int index = childWidgets.indexOf(component); - if (index >= 0) { - childWidgetWrappers.get(index).updateCaption(uidl, component); - } - } - - /* documented at super */ - public Iterator iterator() { - return childWidgets.iterator(); - } - - /* documented at super */ - public void iLayout() { - if (isRendering) { - return; - } - - updateChildSizes(); - if (client != null) { - client.runDescendentsLayout(this); - } - childLayoutsHaveChanged = false; - } - - public boolean requestLayout(Set children) { - if (height != null && width != null) { - /* - * If the height and width has been specified for this container the - * child components cannot make the size of the layout change - */ - - return true; - } - - if (renderInformation.updateSize(root)) { - /* - * Size has changed so we let the child components know about the - * new size. - */ - iLayout(); - - return false; - } else { - /* - * Size has not changed so we do not need to propagate the event - * further - */ - return true; - } - - } - - public RenderSpace getAllocatedSpace(Widget child) { - final int index = childWidgets.indexOf(child); - if (index >= 0) { - WidgetWrapper wrapper = childWidgetWrappers.get(index); - int w = wrapper.getAllocatedWidth(); - int h = wrapper.getAllocatedHeight(); - - return new RenderSpace(w, h); - - } else { - return new RenderSpace(); - } - } -} -- 2.39.5