javauis/eswt_qt/org.eclipse.swt/Eclipse SWT/qt/org/eclipse/swt/widgets/TableItem.java
/*******************************************************************************
* Copyright (c) 2000, 2007 IBM Corporation and others.
* Portion Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Nokia Corporation - Qt implementation
*******************************************************************************/
package org.eclipse.swt.widgets;
import org.eclipse.swt.SWT;
import org.eclipse.swt.internal.qt.OS;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Internal_GfxPackageSupport;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
/**
* Instances of this class represent a selectable user interface object
* that represents an item in a table.
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>(none)</dd>
* <dt><b>Events:</b></dt>
* <dd>(none)</dd>
* </dl>
* <p>
* IMPORTANT: This class is <em>not</em> intended to be subclassed.
* </p>
*/
public class TableItem extends Item {
Table parent;
/*
* Array for storing the native side QTableWidgetItem handles
*/
int [] handles;
/*
* Number of columns, i.e. number of valid items in handles, cellFont,
* etc. arrays
*/
int columnCount;
/*
* Used for storing the general Font/Color for the item,
* arrays for storing the same for individual TableItem cells
*/
Font font;
Font[] cellFont;
Color background;
Color[] cellBackground;
Color foreground;
Color[] cellForeground;
Image[] cellImage;
/*
* Tells if the item has all the data fetched (can be false only in
* SWT.VIRTUAL style Table)
*/
boolean cached;
/*
* Native check box handle (this gets initialized only if Table is
* created with SWT.CHECK style.
*/
int checkBoxHandle;
int radioButtonHandle;
/**
* Constructs a new instance of this class given its parent
* (which must be a <code>Table</code>), a style value
* describing its behavior and appearance, and the index
* at which to place it in the items maintained by its parent.
* <p>
* The style value is either one of the style constants defined in
* class <code>SWT</code> which is applicable to instances of this
* class, or must be built by <em>bitwise OR</em>'ing together
* (that is, using the <code>int</code> "|" operator) two or more
* of those <code>SWT</code> style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
* </p>
*
* @param parent a composite control which will be the parent of the new instance (cannot be null)
* @param style the style of control to construct
* @param index the zero-relative index to store the receiver in its parent
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
* <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see SWT
* @see Widget#checkSubclass
* @see Widget#getStyle
*/
public TableItem (Table parent, int style, int index) {
this (parent, style, index, true);
}
/**
* Constructs a new instance of this class given its parent
* (which must be a <code>Table</code>) and a style value
* describing its behavior and appearance. The item is added
* to the end of the items maintained by its parent.
* <p>
* The style value is either one of the style constants defined in
* class <code>SWT</code> which is applicable to instances of this
* class, or must be built by <em>bitwise OR</em>'ing together
* (that is, using the <code>int</code> "|" operator) two or more
* of those <code>SWT</code> style constants. The class description
* lists the style constants that are applicable to the class.
* Style bits are also inherited from superclasses.
* </p>
*
* @param parent a composite control which will be the parent of the new instance (cannot be null)
* @param style the style of control to construct
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
* </ul>
* @exception SWTException <ul>
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
* <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
* </ul>
*
* @see SWT
* @see Widget#checkSubclass
* @see Widget#getStyle
*/
public TableItem (Table parent, int style) {
this (parent, style, checkNull (parent).getItemCount (), true);
}
TableItem (Table parent, int style, int index, boolean create) {
super (parent, style);
this.parent = parent;
columnCount = parent.columnCount > 0 ? parent.columnCount : 1;
if (create) {
// We don't want to send any events during creation, so set the
// flags to false (Qt generates some signals when setting the
// initial states).
parent.apiCheck = true;
parent.apiSelection = true;
parent.createItem(this, index);
OS.QTableWidget_insertRow(parent.topHandle, index);
OS.QTableView_setRowHeight(parent.topHandle, index, parent.getItemHeight());
ensureValid(index);
// Default radio selection
if(index == 0 && (parent.style & SWT.RADIO ) != 0 && (parent.style & SWT.SINGLE ) != 0){
OS.QAbstractButton_setChecked(radioButtonHandle,true);
}
parent.apiCheck = false;
parent.apiSelection = false;
}
}
void releaseHandle_pp () {
handle = 0;
super.releaseHandle_pp ();
parent = null;
deregister_pp();
}
void releaseWidget_pp () {
super.releaseWidget_pp ();
font = null;
cellFont = null;
background = null;
cellBackground = null;
foreground = null;
cellForeground = null;
cellImage = null;
handles = null;
radioButtonHandle = 0;
}
/*
* Ensures that the TableItem has all the native and Java side
* resources created.
* @param index Index of the item in Table
*/
void ensureValid(int index) {
if (cached) {
return;
}
cached = true;
if (checkBoxHandle == 0 && (parent.style & SWT.CHECK ) != 0) {
checkBoxHandle = OS.QTableWidgetItem_new();
OS.QTableWidgetItem_setFlags(checkBoxHandle, OS.QT_ITEMISENABLED | OS.QT_ITEMISUSERCHECKABLE|OS.QT_ITEMISSELECTABLE);
OS.QTableWidgetItem_setData(checkBoxHandle, OS.QT_CHECKSTATEROLE, OS.QT_UNCHECKED);
OS.QTableWidget_setItem(parent.topHandle, index, 0, checkBoxHandle);
} else if(radioButtonHandle == 0 && (parent.style & SWT.RADIO ) != 0 && (parent.style & SWT.SINGLE ) != 0){
radioButtonHandle = OS.QRadioButton_new();
OS.QObject_setProperty(radioButtonHandle, "swt_obj_idx", OS.QObject_property(parent.topHandle, "swt_obj_idx"));
OS.QWidget_setFocusPolicy(radioButtonHandle, OS.QT_FOCUSPOLICY_NOFOCUS);
OS.QTableWidget_setCellWidget(parent.topHandle, index, 0, radioButtonHandle);
}
for (int i = 0; i < columnCount; i++) {
createCellItem(index, i);
}
}
/*
* Removes a TableColumn from the item at index
* @param index Index to remove
*/
void removeColumn(int index) {
// If column count is 1, table goes to list mode and we should not
// remove the native columns
if (columnCount == 1) return;
if (index < columnCount - 1) {
if (handles != null) System.arraycopy (handles, index + 1, handles, index, columnCount - index - 1);
if (cellForeground != null) System.arraycopy (cellForeground, index + 1, cellForeground, index, columnCount - index - 1);
if (cellBackground != null) System.arraycopy (cellBackground, index + 1, cellBackground, index, columnCount - index - 1);
if (cellImage != null) System.arraycopy (cellImage, index + 1, cellImage, index, columnCount - index - 1);
if (cellFont != null) System.arraycopy (cellFont, index + 1, cellFont, index, columnCount - index - 1);
}
columnCount--;
if (handles != null) handles[columnCount] = 0;
if (cellForeground != null) cellForeground[columnCount] = null;
if (cellBackground != null) cellBackground[columnCount] = null;
if (cellImage != null) cellImage[columnCount] = null;
if (cellFont != null) cellFont[columnCount] = null;
}
/*
* Adds a column to the TableItem at index
* @param row Index of the TableItem in Table
* @param index Index of the column to add
*/
void addColumn(int row, int index) {
columnCount++;
if ((parent.style & SWT.VIRTUAL) != 0) {
// In VIRTUAL style table adding a new column causes the
// item to contain uninitialized items, so set cached state
// to false
cached = false;
}
// Update handle array
if (handles != null) {
if (columnCount > handles.length) {
int [] newHandles = new int[columnCount];
System.arraycopy (handles, 0, newHandles, 0, handles.length);
handles = newHandles;
}
if (index < columnCount - 1) {
System.arraycopy (handles, index, handles, index + 1, columnCount - index -1);
}
handles[index] = 0;
}
// Update the rest of the arrays (if needed)
cellForeground = updateColorArray(cellForeground, index);
cellBackground = updateColorArray(cellForeground, index);
cellImage = updateImageArray(cellImage, index);
cellFont = updateFontArray(cellFont, index);
createCellItem(row, index);
}
Image [] updateImageArray(Image [] array, int index) {
if (array != null) {
// Make the array bigger if needed
if (columnCount > array.length) {
Image [] newArray = new Image[columnCount];
System.arraycopy(array, 0, newArray, 0, array.length);
array = newArray;
}
// Make space for the new item at index
if (index < columnCount - 1) {
System.arraycopy (array, index, array, index + 1, columnCount - index -1);
}
array[index] = null;
}
return array;
}
Color [] updateColorArray(Color [] array, int index) {
if (array != null) {
if (columnCount > array.length) {
Color [] newArray = new Color[columnCount];
System.arraycopy(array, 0, newArray, 0, array.length);
array = newArray;
}
if (index < columnCount - 1) {
System.arraycopy (array, index, array, index + 1, columnCount - index -1);
}
array[index] = null;
}
return array;
}
Font [] updateFontArray(Font [] array, int index) {
if (array != null) {
if (columnCount > array.length) {
Font [] newArray = new Font[columnCount];
System.arraycopy(array, 0, newArray, 0, array.length);
array = newArray;
}
if (index < columnCount - 1) {
System.arraycopy (array, index, array, index + 1, columnCount - index -1);
}
array[index] = null;
}
return array;
}
/*
* Creates a native QTableWidgetItem cell in the item at given index
* @param index Index of the TableItem in Table
* @param handleIndex Index inside the TableItem for the new cell (i.e. column)
*/
void createCellItem(int index, int handleIndex) {
if (handles == null) {
handles = new int [columnCount];
}
if (handles[handleIndex] == 0) {
handles[handleIndex] = OS.QTableWidgetItem_new();
OS.QTableWidgetItem_setFlags(handles[handleIndex], OS.QT_ITEMISSELECTABLE | OS.QT_ITEMISENABLED);
// Set new item alignment
if (parent.columnCount > handleIndex) {
TableColumn column = parent.getColumn(handleIndex);
OS.QTableWidgetItem_setTextAlignment(handles[handleIndex], column.getQtAlignment());
}
OS.QTableWidget_setItem(parent.topHandle, index, parent.getNativeColumnIndex(handleIndex), handles[handleIndex]);
// If the user has set background, foreground or font for the whole item
// set that here for the new column also
if (background != null) OS.QTableWidgetItem_swt_setBackground(handles[handleIndex], background.getRed(), background.getGreen(), background.getBlue(), false);
if (foreground != null) OS.QTableWidgetItem_swt_setForeground(handles[handleIndex], foreground.getRed(), foreground.getGreen(), foreground.getBlue(), false);
if (font != null) OS.QTableWidgetItem_swt_setFont(handles[handleIndex], font.handle);
}
}
/*
* Set selected state for the item
* @param selected Selection state
*/
void setSelected(boolean selected) {
if (handles == null) return;
parent.apiSelection = true;
for (int i = 0; i < handles.length; i++) {
OS.QTableWidgetItem_setSelected(getHandle(i), selected);
}
if(((parent.style & SWT.SINGLE) != 0) && ((parent.style & SWT.RADIO) != 0)){
OS.QAbstractButton_setChecked(radioButtonHandle,selected);
}
parent.apiSelection = false;
}
/*
* Returns item selection state
* @return True is selected, false otherwise
*/
boolean isSelected() {
// Go through all QTableWidgetItems of the TableItem and return
// true if any cell is selected
if(((parent.style & SWT.SINGLE) != 0) && ((parent.style & SWT.RADIO) != 0)){
return OS.QAbstractButton_isChecked(radioButtonHandle);
}
if (handles != null) {
for (int i = 0; i < handles.length; i++) {
if (OS.QTableWidgetItem_isSelected(getHandle(i))) {
return true;
}
}
}
return false;
}
/*
* Return QTableWidgetItem handle at column index.
* @param index Column for the handle
* @return QTableWidget handle or 0
*/
int getHandle(int index) {
if (index >= 0 && index < handles.length) {
return handles[index];
}
return 0;
}
static Table checkNull (Table control) {
if (control == null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
return control;
}
protected void checkSubclass () {
if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
}
public boolean isDisposed() {
if (parent != null && (parent.style & SWT.VIRTUAL) == 0) {
if (handles == null) return true;
if (handles.length == 0) return true;
if (handles[0] == 0) return true;
}
return super.isDisposed();
}
void destroyWidget () {
parent.destroyItem (this);
releaseHandle_pp();
}
int topHandle() {
if (handles != null && handles.length > 0) {
return handles[0];
}
return 0;
}
/**
* Returns the receiver's background color.
*
* @return the background color
*
* @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>
*
* @since 2.0
*/
public Color getBackground () {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if (background != null) return background;
return parent.getBackground();
}
/**
* Returns the background color at the given column index in the receiver.
*
* @param index the column index
* @return the background color
*
* @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>
*
* @since 3.0
*/
public Color getBackground (int index) {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if (0 > index || handles.length < index) return getBackground();
if (cellBackground != null && cellBackground[index] != null) return cellBackground[index];
if (background != null) return background;
return parent.getBackground();
}
/**
* Returns a rectangle describing the receiver's size and location
* relative to its parent at a column in the table.
*
* @param index the index that specifies the column
* @return the receiver's bounding column rectangle
*
* @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 Rectangle getBounds (int index) {
checkWidget();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if (index < 0 || handles == null || index >= handles.length) {
return new Rectangle (0, 0, 0, 0);
}
int itemHandle = getHandle(index);
return OS.QTableWidget_visualItemRect(parent.topHandle, itemHandle);
}
/**
* Returns <code>true</code> if the receiver is checked,
* and false otherwise. When the parent does not have
* the <code>CHECK</code> style, return false.
*
* @return the checked state of the checkbox
*
* @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 boolean getChecked () {
checkWidget();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if ((parent.style & SWT.CHECK) == 0) return false;
return OS.QTableWidgetItem_data(checkBoxHandle, OS.QT_CHECKSTATEROLE) == OS.QT_CHECKED;
}
boolean getRadioSelected () {
checkWidget();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if ((parent.style & SWT.RADIO) == 0) return false;
return OS.QAbstractButton_isChecked(radioButtonHandle);
}
/**
* Returns the font that the receiver will use to paint textual information for this item.
*
* @return the receiver's font
*
* @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>
*
* @since 3.0
*/
public Font getFont () {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
return font != null ? font : parent.getFont ();
}
/**
* Returns the font that the receiver will use to paint textual information
* for the specified cell in this item.
*
* @param index the column index
* @return the receiver's font
*
* @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>
*
* @since 3.0
*/
public Font getFont (int index) {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
int count = Math.max (1, parent.columnCount);
if (0 > index || index > count - 1) return getFont ();
if (cellFont == null || cellFont [index] == null) return getFont ();
return cellFont [index];
}
/**
* Returns the foreground color that the receiver will use to draw.
*
* @return the receiver's foreground color
*
* @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>
*
* @since 2.0
*/
public Color getForeground () {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if (foreground != null) return foreground;
return parent.getForeground();
}
/**
*
* Returns the foreground color at the given column index in the receiver.
*
* @param index the column index
* @return the foreground color
*
* @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>
*
* @since 3.0
*/
public Color getForeground (int index) {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if (0 > index || columnCount < index) return getForeground();
if (cellForeground != null && cellForeground[index] != null) return cellForeground[index];
if (foreground != null) return foreground;
return parent.getForeground();
}
/**
* Returns <code>true</code> if the receiver is grayed,
* and false otherwise. When the parent does not have
* the <code>CHECK</code> style, return false.
*
* @return the grayed state of the checkbox
*
* @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 boolean getGrayed () {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if ((parent.style & SWT.CHECK) == 0) return false;
return OS.QTableWidgetItem_grayed(checkBoxHandle);
}
/**
* Returns the image stored at the given column index in the receiver,
* or null if the image has not been set or if the column does not exist.
*
* @param index the column index
* @return the image stored at the given column index in the receiver
*
* @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 Image getImage (int index) {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if (index < 0 || index >= columnCount) return null;
if (cellImage == null) return null;
return cellImage[index];
}
/**
* Returns a rectangle describing the size and location
* relative to its parent of an image at a column in the
* table. An empty rectangle is returned if index exceeds
* the index of the table's last column.
*
* @param index the index that specifies the column
* @return the receiver's bounding image rectangle
*
* @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 Rectangle getImageBounds (int index) {
Rectangle imageBounds = getBounds(index);
imageBounds.width = 0;
imageBounds.height = 0;
if (index < 0 || handles == null || index >= columnCount ||
cellImage == null || cellImage[index] == null) {
return imageBounds;
}
Point imageSize = OS.QAbstractItemView_iconSize(parent.topHandle);
imageBounds.width = imageSize.x;
imageBounds.height = imageSize.y;
return imageBounds;
}
/**
* Returns the receiver's parent, which must be a <code>Table</code>.
*
* @return the receiver's parent
*
* @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 Table getParent () {
checkWidget ();
return parent;
}
/**
* Returns the text stored at the given column index in the receiver,
* or empty string if the text has not been set.
*
* @param index the column index
* @return the text stored at the given column index in the receiver
*
* @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 String getText (int index) {
checkWidget ();
if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED);
if (index < 0 || index >= columnCount) return "";
return OS.QTableWidgetItem_text(getHandle(index));
}
public String getText() {
return getText(0);
}
/**
* Sets the receiver's background color to the color specified
* by the argument, or to the default system color for the item
* if the argument is null.
*
* @param color the new color (or null)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
* </ul>
* @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>
*
* @since 2.0
*/
public void setBackground (Color color) {
checkWidget ();
if (color != null && color.isDisposed ()) {
SWT.error (SWT.ERROR_INVALID_ARGUMENT);
}
background = color;
if (checkBoxHandle != 0) {
Color cellBg = getBackground();
boolean restore = (cellBg == null);
int red = cellBg != null ? cellBg.getRed() : 0;
int green = cellBg != null ? cellBg.getGreen() : 0;
int blue = cellBg != null ? cellBg.getBlue() : 0;
OS.QTableWidgetItem_swt_setBackground(checkBoxHandle, red, green, blue, restore);
}
for (int i = 0; i < columnCount; i++) {
Color cellBg = getBackground(i);
boolean restore = (cellBg == null);
int red = cellBg != null ? cellBg.getRed() : 0;
int green = cellBg != null ? cellBg.getGreen() : 0;
int blue = cellBg != null ? cellBg.getBlue() : 0;
OS.QTableWidgetItem_swt_setBackground(getHandle(i), red, green, blue, restore);
}
}
/**
* Sets the background color at the given column index in the receiver
* to the color specified by the argument, or to the default system color for the item
* if the argument is null.
*
* @param index the column index
* @param color the new color (or null)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
* </ul>
* @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>
*
* @since 3.0
*/
public void setBackground (int index, Color color) {
checkWidget ();
if (color != null && color.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
if (index < 0 || index >= handles.length) return;
if (cellBackground == null) {
if (color == null) return;
cellBackground = new Color [columnCount];
}
cellBackground[index] = color;
Color cellBg = getBackground(index);
boolean restore = (cellBg == null);
int red = cellBg != null ? cellBg.getRed() : 0;
int green = cellBg != null ? cellBg.getGreen() : 0;
int blue = cellBg != null ? cellBg.getBlue() : 0;
OS.QTableWidgetItem_swt_setBackground(getHandle(index), red, green, blue, restore);
}
/**
* Sets the checked state of the checkbox for this item. This state change
* only applies if the Table was created with the SWT.CHECK style.
*
* @param checked the new checked state of the checkbox
*
* @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 void setChecked (boolean checked) {
checkWidget();
if ((parent.style & SWT.CHECK) == 0) return;
if (getGrayed()) return;
int state = checked ? OS.QT_CHECKED : OS.QT_UNCHECKED;
parent.apiCheck = true;
OS.QTableWidgetItem_setData(checkBoxHandle, OS.QT_CHECKSTATEROLE, state);
parent.apiCheck = false;
}
/**
* Sets the font that the receiver will use to paint textual information
* for this item to the font specified by the argument, or to the default font
* for that kind of control if the argument is null.
*
* @param font the new font (or null)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
* </ul>
* @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>
*
* @since 3.0
*/
public void setFont (Font font){
checkWidget ();
if (font != null && font.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
Font oldFont = this.font;
if (oldFont == font) return;
this.font = font;
if (oldFont != null && oldFont.equals (font)) return;
int fontHandle = font != null ? font.handle : 0;
for (int i = 0; i < columnCount; i++) {
OS.QTableWidgetItem_swt_setFont(getHandle(i), fontHandle);
}
parent.updateRowHeight(this);
}
/**
* Sets the font that the receiver will use to paint textual information
* for the specified cell in this item to the font specified by the
* argument, or to the default font for that kind of control if the
* argument is null.
*
* @param index the column index
* @param font the new font (or null)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
* </ul>
* @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>
*
* @since 3.0
*/
public void setFont (int index, Font font) {
checkWidget ();
if (font != null && font.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
if (index < 0 || index >= columnCount) return;
if (cellFont == null) {
if (font == null) return;
cellFont = new Font [columnCount];
}
Font oldFont = cellFont [index];
if (oldFont == font) return;
cellFont [index] = font;
if (oldFont != null && oldFont.equals (font)) return;
int fontHandle = font != null ? font.handle : 0;
OS.QTableWidgetItem_swt_setFont(getHandle(index), fontHandle);
parent.updateRowHeight(this);
}
/**
* Sets the receiver's foreground color to the color specified
* by the argument, or to the default system color for the item
* if the argument is null.
*
* @param color the new color (or null)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
* </ul>
* @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>
*
* @since 2.0
*/
public void setForeground (Color color){
checkWidget ();
if (color != null && color.isDisposed ()) {
SWT.error (SWT.ERROR_INVALID_ARGUMENT);
}
foreground = color;
if (checkBoxHandle != 0) {
Color cellFg = getForeground();
boolean restore = (cellFg == null);
int red = cellFg != null ? cellFg.getRed() : 0;
int green = cellFg != null ? cellFg.getGreen() : 0;
int blue = cellFg != null ? cellFg.getBlue() : 0;
OS.QTableWidgetItem_swt_setForeground(checkBoxHandle, red, green, blue, restore);
}
for (int i = 0; i < columnCount; i++) {
Color cellFg = getForeground(i);
boolean restore = (cellFg == null);
int red = cellFg != null ? cellFg.getRed() : 0;
int green = cellFg != null ? cellFg.getGreen() : 0;
int blue = cellFg != null ? cellFg.getBlue() : 0;
OS.QTableWidgetItem_swt_setForeground(getHandle(i), red, green, blue, restore);
}
}
/**
* Sets the foreground color at the given column index in the receiver
* to the color specified by the argument, or to the default system color for the item
* if the argument is null.
*
* @param index the column index
* @param color the new color (or null)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
* </ul>
* @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>
*
* @since 3.0
*/
public void setForeground (int index, Color color){
checkWidget ();
if (color != null && color.isDisposed ()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
if (index < 0 || index >= handles.length) return;
if (cellForeground == null) {
if (color == null) return;
cellForeground = new Color [columnCount];
}
cellForeground[index] = color;
Color cellFg = getForeground(index);
boolean restore = (cellFg == null);
int red = cellFg != null ? cellFg.getRed() : 0;
int green = cellFg != null ? cellFg.getGreen() : 0;
int blue = cellFg != null ? cellFg.getBlue() : 0;
OS.QTableWidgetItem_swt_setForeground(getHandle(index), red, green, blue, restore);
}
/**
* Sets the grayed state of the checkbox for this item. This state change
* only applies if the Table was created with the SWT.CHECK style.
*
* @param grayed the new grayed state of the checkbox;
*
* @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 void setGrayed (boolean grayed) {
checkWidget();
if ((parent.style & SWT.CHECK) == 0) return;
OS.QTableWidgetItem_swt_setGrayed(checkBoxHandle, grayed);
}
/**
* Sets the receiver's image at a column.
*
* @param index the column index
* @param image the new image
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the image has been disposed</li>
* </ul>
* @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 void setImage (int index, Image image) {
checkWidget ();
if (index < 0 || index >= columnCount) return;
if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
if (index == 0) this.image = image;
if (cellImage == null) {
if (image == null) return;
cellImage = new Image [columnCount];
}
cellImage[index] = image;
if (image != null ) {
Rectangle imageBounds = image.getBounds();
parent.updateImageSize(imageBounds.width, imageBounds.height);
OS.QTableWidgetItem_setIcon(getHandle(index), Internal_GfxPackageSupport.getIconHandle(image));
} else {
OS.QTableWidgetItem_setIcon(getHandle(index), Internal_GfxPackageSupport.getNullIconHandle());
}
parent.updateRowHeight(false);
}
public void setImage (Image image) {
checkWidget ();
if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
super.setImage(image);
setImage(0, image);
}
/**
* Sets the image for multiple columns in the table.
*
* @param images the array of new images
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the array of images is null</li>
* <li>ERROR_INVALID_ARGUMENT - if one of the images has been disposed</li>
* </ul>
* @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 void setImage (Image [] images) {
checkWidget ();
if (images == null) error (SWT.ERROR_NULL_ARGUMENT);
for (int i=0; i<images.length; i++) {
setImage (i, images [i]);
}
}
/**
* Sets the receiver's text at a column
*
* @param index the column index
* @param string the new text
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the text is null</li>
* </ul>
* @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 void setText (int index, String string) {
checkWidget ();
_setText(index, string);
if (parent.getWordWrap()) parent.updateRowHeight(this);
}
public void setText (String string) {
checkWidget ();
_setText(0, string);
if (parent.getWordWrap()) parent.updateRowHeight(this);
}
/**
* Sets the text for multiple columns in the table.
*
* @param strings the array of new strings
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the text is null</li>
* </ul>
* @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 void setText (String [] strings) {
checkWidget ();
if (strings == null) error (SWT.ERROR_NULL_ARGUMENT);
for (int i=0; i<strings.length; i++) {
String string = strings [i];
if (string != null) _setText (i, string);
}
if (parent.getWordWrap()) parent.updateRowHeight(this);
}
void _setText(int index, String string) {
if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
if (0 > index || index >= columnCount) return;
OS.QTableWidgetItem_setText(getHandle(index), string);
}
}