org.eclipse.swt.widgets.List.getItemHeight()方法的使用及代码示例

x33g5p2x  于2022-01-23 转载在 其他  
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本文整理了Java中org.eclipse.swt.widgets.List.getItemHeight()方法的一些代码示例，展示了List.getItemHeight()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。List.getItemHeight()方法的具体详情如下：
包路径：org.eclipse.swt.widgets.List
类名称：List
方法名：getItemHeight

List.getItemHeight介绍

[英]Returns the height of the area which would be used to display one of the items in the list.
[中]返回用于显示列表中一个项的区域的高度。

代码示例

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

/**
 * Returns the height of the area which would be used to
 * display <em>one</em> of the items in the receiver's list.
 *
 * @return the height of one item
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public int getItemHeight () {
  checkWidget ();
  return list.getItemHeight ();
}
/**

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

/**
 * Returns the height of the area which would be used to
 * display <em>one</em> of the items in the receiver's list.
 *
 * @return the height of one item
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public int getItemHeight () {
  checkWidget ();
  return list.getItemHeight ();
}
/**

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

/**
 * Returns the height of the area which would be used to
 * display <em>one</em> of the items in the receiver's list.
 *
 * @return the height of one item
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public int getItemHeight () {
  checkWidget ();
  return list.getItemHeight ();
}
/**

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

/**
 * Returns the height of the area which would be used to
 * display <em>one</em> of the items in the receiver's list.
 *
 * @return the height of one item
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public int getItemHeight () {
  checkWidget ();
  return list.getItemHeight ();
}
/**

代码示例来源：origin: org.eclipse/org.eclipse.wst.xsd.ui

/**
 * Returns the height of the area which would be used to
 * display <em>one</em> of the items in the receiver's list.
 *
 * @return the height of one item
 *
 * @exception org.eclipse.swt.SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public int getItemHeight () {
 checkWidget ();
 return list.getItemHeight ();
}
/**

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

/**
 * Returns the height of the area which would be used to
 * display <em>one</em> of the items in the receiver's list.
 *
 * @return the height of one item
 *
 * @exception SWTException <ul>
 *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
 *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
 * </ul>
 */
public int getItemHeight () {
  checkWidget ();
  return list.getItemHeight ();
}
/**

代码示例来源：origin: BiglySoftware/BiglyBT

@Override
  public void mouseMove(MouseEvent e){
    int item_height = list.getItemHeight();
    int y = e.y;
    int	item_index = y/item_height;
    if ( list.getSelectionIndex() != item_index ){
      list.setSelection( item_index );
    }
  }
});

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

boolean needsVScrollBar() {
 int availableHeight = getClientArea().height;
 int height = getItemCount() * getItemHeight();
 return height > availableHeight;
}

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

Point getItemDimensions() {
 int width = 0;
 int height = 0;
 if( getItemCount() > 0 ) {
  int availableWidth = getClientArea().width;
  if( ( style & SWT.H_SCROLL ) == 0 && isMarkupEnabledFor( this ) ) {
   width = availableWidth;
  } else {
   width = Math.max( getMaxItemWidth(), availableWidth );
  }
  height = getItemHeight();
 }
 return new Point( width, height );
}

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

final int getVisibleItemCount() {
 int clientHeight = getBounds().height;
 if( ( style & SWT.H_SCROLL ) != 0 ) {
  clientHeight -= getHorizontalBar().getSize().y;
 }
 int result = 0;
 if( clientHeight >= 0 ) {
  int itemHeight = getItemHeight();
  result = clientHeight / itemHeight;
 }
 return result;
}

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.jface

public void reveal(Object element) {
  Assert.isNotNull(element);
  int index = getElementIndex(element);
  if (index == -1) {
    return;
  }
  // algorithm patterned after List.showSelection()
  int count = list.getItemCount();
  if (count == 0) {
    return;
  }
  int height = list.getItemHeight();
  Rectangle rect = list.getClientArea();
  int topIndex = list.getTopIndex();
  int visibleCount = Math.max(rect.height / height, 1);
  int bottomIndex = Math.min(topIndex + visibleCount, count) - 1;
  if ((topIndex <= index) && (index <= bottomIndex)) {
    return;
  }
  int newTop = Math.min(Math.max(index - (visibleCount / 2), 0),
      count - 1);
  list.setTopIndex(newTop);
}

代码示例来源：origin: org.eclipse/org.eclipse.wst.common.frameworks.ui

protected List createDropDownList(Composite parent)
{
 // create the list
 list = new List(parent, SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL);
 // fill the list
 populateList(list);
 GridData data =
  new GridData(
   GridData.HORIZONTAL_ALIGN_FILL
    | GridData.GRAB_HORIZONTAL
    | GridData.VERTICAL_ALIGN_FILL
    | GridData.GRAB_VERTICAL);
 data.heightHint = list.getItemHeight() * LIST_ITEM_COUNT;
 list.setLayoutData(data);
 listCreated = true;
 return list;
}
protected Text createDropDownDetails(Composite parent)

代码示例来源：origin: org.eclipse.platform/org.eclipse.jface

@Override
public void reveal(Object element) {
  Assert.isNotNull(element);
  int index = getElementIndex(element);
  if (index == -1) {
    return;
  }
  // algorithm patterned after List.showSelection()
  int count = list.getItemCount();
  if (count == 0) {
    return;
  }
  int height = list.getItemHeight();
  Rectangle rect = list.getClientArea();
  int topIndex = list.getTopIndex();
  int visibleCount = Math.max(rect.height / height, 1);
  int bottomIndex = Math.min(topIndex + visibleCount, count) - 1;
  if ((topIndex <= index) && (index <= bottomIndex)) {
    return;
  }
  int newTop = Math.min(Math.max(index - (visibleCount / 2), 0),
      count - 1);
  list.setTopIndex(newTop);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.jface

@Override
public void reveal(Object element) {
  Assert.isNotNull(element);
  int index = getElementIndex(element);
  if (index == -1) {
    return;
  }
  // algorithm patterned after List.showSelection()
  int count = list.getItemCount();
  if (count == 0) {
    return;
  }
  int height = list.getItemHeight();
  Rectangle rect = list.getClientArea();
  int topIndex = list.getTopIndex();
  int visibleCount = Math.max(rect.height / height, 1);
  int bottomIndex = Math.min(topIndex + visibleCount, count) - 1;
  if ((topIndex <= index) && (index <= bottomIndex)) {
    return;
  }
  int newTop = Math.min(Math.max(index - (visibleCount / 2), 0),
      count - 1);
  list.setTopIndex(newTop);
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.ui.ide

data.heightHint = buildList.getItemHeight();
data.verticalAlignment = GridData.FILL;
data.horizontalAlignment = GridData.FILL;

代码示例来源：origin: org.microemu/microemu-javase-swt

gridData.horizontalSpan = 3;
gridData.grabExcessVerticalSpace = true;
Rectangle trim = lsDevices.computeTrim(0, 0, 0, lsDevices.getItemHeight() * 5);
gridData.heightHint = trim.height;
lsDevices.setLayoutData(gridData);

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

int height = 0;
if (hHint == SWT.DEFAULT) {
  int itemHeight = getItemHeight () + CELL_GAP;
  height = itemCount * itemHeight;
} else {

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.jface

| GridData.GRAB_HORIZONTAL | GridData.VERTICAL_ALIGN_FILL
    | GridData.GRAB_VERTICAL);
data.heightHint = list.getItemHeight() * LIST_ITEM_COUNT;
data.horizontalSpan = 2;
list.setLayoutData(data);

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

@Override
public Point computeSize( int wHint, int hHint, boolean changed ) {
 checkWidget ();
 int width = getMaxItemWidth();
 int height = getItemHeight() * getItemCount();
 if( width == 0 ) {
  width = DEFAULT_WIDTH;
 }
 if( height == 0 ) {
  height = DEFAULT_HEIGHT;
 }
 if( wHint != SWT.DEFAULT ) {
  width = wHint;
 }
 if( hHint != SWT.DEFAULT ) {
  height = hHint;
 }
 BoxDimensions border = getBorder();
 width += border.left + border.right;
 height += border.top + border.bottom;
 if( ( style & SWT.V_SCROLL ) != 0 ) {
  width += getVerticalBar().getSize().x;
 }
 if( ( style & SWT.H_SCROLL ) != 0 ) {
  height += getHorizontalBar().getSize().y;
 }
 return new Point( width, height );
}

代码示例来源：origin: org.eclipse/org.eclipse.wst.xsd.ui

int itemCount = list.getItemCount ();
itemCount = (itemCount == 0) ? visibleItemCount : Math.min(visibleItemCount, itemCount);
int itemHeight = list.getItemHeight () * itemCount;
Point listSize = list.computeSize (SWT.DEFAULT, itemHeight, false);
list.setBounds (1, 1, Math.max (size.x - 2, listSize.x), listSize.y);

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