2、自定义下拉多选框
package com.view.control.select; import java.util.ArrayList;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map; import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.events.DisposeEvent;
import org.eclipse.swt.events.DisposeListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell; import com.global.constant.Constants;
import com.util.CollectionUtil;
import com.util.FileUtil;
import com.view.control.DefinedControl;
import com.view.swt.SWTResourceManager;
import com.view.swt.SWTUtil;
import com.view.util.ImageUtil; /**
* <p>
* 多选下拉框的通用逻辑
* </p>
* @version V1.0
*/
public class DefinedCommonMultiSelect extends DefinedControl { /**** 其父框需要是gridLaout布局 *****/
private Composite choseMaxComposite;
/**** 选中内容显示的文本区域容器 *****/
private Composite chooseComposite;
/*** 下一个item所在的x坐标 ***/
private int chooseItemNextX = 0;
/*** 下一个item所在的y坐标 ******/
private int chooseItemNextY = 0;
private List<DropDownBox.Data> selectedList = new ArrayList<DropDownBox.Data>();
/*** 选中内容显示的文本区域实际的宽度 ****/
private int chooseRealWidth;
private Map<DropDownBox.Data, Composite> selectedCompositeMap = new LinkedHashMap<DropDownBox.Data, Composite>();
private Map<DropDownBox.Data, Label> comboImg = new HashMap<DropDownBox.Data, Label>();
/**** 选中内容显示的文本区域 + 下拉图标 总宽度 ****/
private int chooseWidth = 323;
/**** 内容框中的每项的高度 *****/
private int chooseItemHeight = 24;
/**** 默认值 ***/
private List<DropDownBox.Data> defaultValueList = new ArrayList<DropDownBox.Data>();
private List<DefinedCommonMultiSelectEvent> itemHandlerListener;
private Label img;
private DropDownBox<DropDownBox.Data> dropDownBox;
private Image CHECKBOX_NOR_ICON = ImageUtil.getImage(FileUtil.loadResourceFileAsStream(Constants.CHECKBOX_NOR_ICON));
private Image CHECKBOX_SELF_ICON = ImageUtil.getImage(FileUtil.loadResourceFileAsStream(Constants.CHECKBOX_SELF_ICON)); public DefinedCommonMultiSelect(Composite parent, DropDownBox<DropDownBox.Data> dropDownBox) {
super(parent);
this.dropDownBox = dropDownBox;
} public DefinedCommonMultiSelect(Composite parent,int chooseWidth, int chooseItemHeight,
DropDownBox<DropDownBox.Data> dropDownBox) {
this(parent, dropDownBox);
this.chooseWidth = chooseWidth;
this.chooseItemHeight = chooseItemHeight;
} @Override
public void paint() {
this.chooseComposite = generateComposite(this.parent);
} /**
* 创建显示下拉框的内容
* @param contentComposite
* @return
*/
protected Composite generateComposite(Composite contentComposite) {
choseMaxComposite = new Composite(contentComposite, SWT.NONE);
GridData gd_contentComposite = new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1);
gd_contentComposite.widthHint = this.chooseWidth;
choseMaxComposite.setLayoutData(gd_contentComposite);
GridLayout grid = new GridLayout(2, false);
grid.horizontalSpacing = 0;
grid.marginHeight = 1;
grid.marginWidth = 1;
choseMaxComposite.setLayout(grid);
choseMaxComposite.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
SWTUtil.paintBorder(choseMaxComposite, SWTResourceManager.getColor(229, 229, 229));
dropDownBox.setContentComposite(choseMaxComposite); Composite text_container_composite = new Composite(choseMaxComposite, SWT.NONE);
GridData gd_text_container_composite = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1);
text_container_composite.setLayoutData(gd_text_container_composite);
text_container_composite.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
grid = new GridLayout(1, true);
grid.horizontalSpacing = 0;
grid.marginHeight = 2;
grid.marginWidth = 2;
text_container_composite.setLayout(grid); Composite text_composite = new Composite(text_container_composite, SWT.NONE);
text_composite.setData("rootParent", this.parent);
GridData gd_text_composite = new GridData(SWT.FILL, SWT.FILL, false, false, 1, 1);
chooseRealWidth = this.chooseWidth - 6 - 24;
gd_text_composite.widthHint = chooseRealWidth;
gd_text_composite.heightHint = this.chooseItemHeight + 4;
text_composite.setLayoutData(gd_text_composite);
text_composite.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE)); if (CollectionUtil.isNotEmpty(defaultValueList)) {
List<DropDownBox.Data> dataList = new ArrayList<>();
for (DropDownBox.Data defaultValue: defaultValueList) {
addUniqueNickName(dataList,defaultValue);
dataList.add(defaultValue);
generateChooseItemComposite(text_composite, defaultValue);
}
}
img = new Label(choseMaxComposite, SWT.NONE);
GridData gd_img = new GridData(SWT.LEFT, SWT.CENTER, false, false, 1, 1);
gd_img.widthHint = 24;
gd_img.heightHint = 24;
img.setLayoutData(gd_img);
img.setImage(ImageUtil.getImage(FileUtil.loadResourceFileAsStream(Constants.ARROW_DOWN)));
img.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
img.setCursor(SWTResourceManager.getCursor(SWT.CURSOR_HAND));
img.addListener(SWT.MouseDown, new Listener() {
@Override
public void handleEvent(Event event) {
Composite comboComposite = dropDownBox.getComboComposite();
if(comboComposite !=null && !comboComposite.isDisposed()){
dropDownBox.comboDispose();
}else{
dropDownBox.comboPaint();
}
}
});
choseMaxComposite.layout(true);
choseMaxComposite.addDisposeListener(new DisposeListener() {
@Override
public void widgetDisposed(DisposeEvent e) {
dropDownBox.dispose();
}
});
return text_composite;
} /**
* 重命名data的昵称
* @param dataList
* @param defaultValue
* @return
*/
private boolean addUniqueNickName(List<DropDownBox.Data> dataList,DropDownBox.Data defaultValue){
if(dataList.contains(defaultValue)){
dataList.forEach(data->{
if(data.getValue().equals(defaultValue.getValue()) && data.getNickname()>defaultValue.getNickname()) {
defaultValue.setNickname(data.getNickname());
}
});
defaultValue.setNickname(defaultValue.getNickname()+1);
return true;
}
return false;
} public Label getImg() {
return img;
} protected void generateChooseItemComposite(DropDownBox.Data data) {
Composite containerComposite = generateChooseItemComposite(chooseComposite, data);
Composite parentComposite = containerComposite.getParent();
parentComposite.layout(true);
parentComposite.getParent().layout(true);
parentComposite.getParent().getParent().layout(true);
parentComposite.getParent().getParent().getParent().layout(true);
} /**
* 生成一个chooseItemComposite
* @param text_composite
* @return
*/
private Composite generateChooseItemComposite(Composite text_composite, DropDownBox.Data data) {
Composite containerComposite = new Composite(text_composite, SWT.NONE);
containerComposite.setData("rootParent", this.parent);
GridLayout gl_containerComposite = new GridLayout(1, true);
gl_containerComposite.marginHeight = 2;
gl_containerComposite.marginWidth = 2;
gl_containerComposite.horizontalSpacing = 0;
containerComposite.setLayout(gl_containerComposite);
containerComposite.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE)); Composite itemComposite = new Composite(containerComposite, SWT.NONE);
itemComposite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true, 1, 1));
itemComposite.setBackground(SWTResourceManager.getColor(245, 245, 245));
SWTUtil.paintBorder(itemComposite, SWTResourceManager.getBorderColor());
GridLayout gl_itemComposite = new GridLayout(2, false);
gl_itemComposite.marginHeight = 1;
gl_itemComposite.marginWidth = 3;
gl_itemComposite.horizontalSpacing = 2;
itemComposite.setLayout(gl_itemComposite);
itemComposite.setData("value", data); CLabel label = new CLabel(itemComposite, SWT.NONE);
label.setLayoutData(new GridData(SWT.FILL, SWT.FILL, false, true, 1, 1));
label.setBackground(SWTResourceManager.getColor(245, 245, 245));
label.setText(data.getDisplay());
label.setAlignment(SWT.CENTER);
label.setForeground(SWTResourceManager.getColor(51, 51, 51)); Label img = new Label(itemComposite, SWT.NONE);
GridData gd_img = new GridData(SWT.CENTER, SWT.CENTER, false, false, 1, 1);
gd_img.widthHint = 16;
gd_img.heightHint = 16;
img.setLayoutData(gd_img);
img.setText("X");
img.setBackground(SWTResourceManager.getColor(245, 245, 245));
img.setCursor(SWTResourceManager.getCursor(SWT.CURSOR_HAND));
img.addListener(SWT.MouseDown, new Listener() {
@Override
public void handleEvent(Event event) {
disposeChooseItemComposite(data);
}
});
itemComposite.layout(true); int containerCompositeWidth = 24 + label.getBounds().width + 4;
boolean change = false;
containerComposite.setSize(containerCompositeWidth, this.chooseItemHeight + 4);
if ((this.chooseRealWidth - this.chooseItemNextX - containerCompositeWidth) < 0) {
this.chooseItemNextY += this.chooseItemHeight + 4;
this.chooseItemNextX = 0;
change = true;
}
containerComposite.setLocation(this.chooseItemNextX, this.chooseItemNextY);
this.chooseItemNextX += containerCompositeWidth; this.selectedList.add(data);
this.selectedCompositeMap.put(data, containerComposite);
containerComposite.layout(true);
if (change) {
((GridData)text_composite.getLayoutData()).heightHint = this.chooseItemNextY + this.chooseItemHeight + 4;
reLayoutAllParent(text_composite);
dropDownBox.reLocation();
} if (CollectionUtil.isNotEmpty(itemHandlerListener)) {
for (DefinedCommonMultiSelectEvent event : itemHandlerListener) {
event.addItemEvent(data, containerComposite);
}
}
return containerComposite;
} /**
* 销毁一个选中文本框中的一项（同时将其在下拉框中的项置为未选中状态）
* @param data
*/
protected void disposeChooseItemComposite(DropDownBox.Data data) {
selectedList.remove(data);
Composite containerComposite = selectedCompositeMap.get(data);
Composite beforeComposite = null;
Composite beforecontainerComposite = null;
Rectangle bounds;
int nextX = containerComposite.getBounds().x;
int nextY = containerComposite.getBounds().y;
boolean deleteLast = true; // 要删除的是最后一个
for (Composite leftContainerComposite : selectedCompositeMap.values()) {
if (leftContainerComposite == containerComposite) {
beforeComposite = leftContainerComposite;
continue;
}
if (null != beforeComposite) {
deleteLast = false;
if ((this.chooseRealWidth - nextX - leftContainerComposite.getBounds().width) < 0) {
leftContainerComposite.setLocation(0, nextY + this.chooseItemHeight + 4);
} else {
leftContainerComposite.setLocation(nextX, nextY);
}
leftContainerComposite.layout(true);
bounds = leftContainerComposite.getBounds();
nextX = bounds.x + bounds.width;
nextY = bounds.y;
beforeComposite = leftContainerComposite;
} else {
beforecontainerComposite = leftContainerComposite;
}
}
boolean change = false;
selectedCompositeMap.remove(data);
if (deleteLast) {
if (beforecontainerComposite == null) {
nextX = 0;
nextY = 0;
} else {
nextX = beforecontainerComposite.getBounds().x + beforecontainerComposite.getBounds().width;
nextY = beforecontainerComposite.getBounds().y;
}
}
chooseItemNextX = nextX;
if (chooseItemNextY != nextY) {
change = true;
}
chooseItemNextY = nextY;
Composite parentComposite = containerComposite.getParent();
Label imgLabel = comboImg.get(data);
if(imgLabel != null && !imgLabel.isDisposed()){
changeUnSelectCheckBox(imgLabel);
}else{
comboImg.remove(data);
}
containerComposite.dispose();
if (change) {
if (0 == chooseItemNextY) {
((GridData)parentComposite.getLayoutData()).heightHint = this.chooseItemHeight + 4;
} else
((GridData)parentComposite.getLayoutData()).heightHint = chooseItemNextY + this.chooseItemHeight + 4;
reLayoutAllParent(parentComposite);
dropDownBox.reLocation();
}
if (CollectionUtil.isNotEmpty(itemHandlerListener)) {
for (DefinedCommonMultiSelectEvent event : itemHandlerListener) {
event.disposeItemEvent(data, parentComposite);
}
}
} /**
* 获取当前的高度
* @return
*/
protected int getHeight() {
return this.chooseItemNextY + this.chooseItemHeight + 4 + 6;
} protected Composite getChoseMaxComposite() {
return choseMaxComposite;
} /**
* 所有的重新绘制
* @param composite
*/
private void reLayoutAllParent(Composite composite) {
Composite contentComposite = composite;
while(contentComposite != this.parent){
contentComposite.layout(true);
contentComposite = contentComposite.getParent();
}
contentComposite.layout(true);
Composite parentComposite = contentComposite.getParent();
while(!(parentComposite instanceof ScrolledComposite) && !(parentComposite instanceof Shell)){
parentComposite.layout(true);
contentComposite = parentComposite;
parentComposite = parentComposite.getParent();
}
if(parentComposite instanceof ScrolledComposite){
((ScrolledComposite)parentComposite).setMinSize(contentComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
}
} /**
* 将checkbox变成选中状态
* @param img
*/
protected void changeSelectCheckBox(Label img) {
if(img != null && !img.isDisposed()){
img.setImage(CHECKBOX_SELF_ICON);
img.setData("checked", true);
}
} /**
* 将checkbox变成未选中状态
* @param img
*/
protected void changeUnSelectCheckBox(Label img) {
if(null != img && !img.isDisposed()){
img.setImage(CHECKBOX_NOR_ICON);
img.setData("checked", false);
}
} /**
* 销毁掉所有已选择的内容*/
protected void disposeAllChooseItem() {
while ((CollectionUtil.isNotEmpty(this.selectedList))) {
this.disposeChooseItemComposite(this.selectedList.get(0));
}
} private void changeItemSelection(CLabel itemLabel) {
itemLabel.getParent().setBackground(SWTResourceManager.getColor(226, 235, 255));
Control[] children = itemLabel.getParent().getChildren();
for (Control child : children) {
child.setBackground(SWTResourceManager.getColor(226, 235, 255));
}
} protected void generateComboItemComposite(DropDownBox.Data data, Composite itemComposite) {
GridLayout gl_itemComposite = new GridLayout(2,false);
gl_itemComposite.verticalSpacing = 0;
gl_itemComposite.horizontalSpacing = 5;
itemComposite.setLayout(gl_itemComposite);
Label img = new Label(itemComposite, SWT.NONE);
GridData gd_img = new GridData(SWT.FILL,SWT.FILL,false,false,1,1);
gd_img.widthHint = 24;
gd_img.heightHint = 24;
img.setLayoutData(gd_img);
img.setData("value", data);
if (this.selectedList.contains(data)) {
changeSelectCheckBox(img);
} else {
changeUnSelectCheckBox(img);
}
img.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
img.setCursor(SWTResourceManager.getCursor(SWT.CURSOR_HAND)); img.addListener(SWT.MouseDown, new Listener() { @Override
public void handleEvent(Event event) {
Label img = (Label)event.widget;
boolean select = (boolean)img.getData("checked");
DropDownBox.Data data = (DropDownBox.Data)img.getData("value");
if (select) {
disposeChooseItemComposite(data);
} else {
generateChooseItemComposite(data);
changeSelectCheckBox(img);
}
}
});
addDropDownCheckBoxImg(data, img); CLabel itemLabel = new CLabel(itemComposite, SWT.NONE);
if(dropDownBox.showValue){
itemLabel.setText(data.getDisplay()+"("+data.getValue()+")");
}else
itemLabel.setText(data.getDisplay());
itemLabel.setData("value", data);
itemLabel.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
GridData gd_itemLabel= new GridData(SWT.FILL,SWT.FILL,true,true,1,1);
itemLabel.setLayoutData(gd_itemLabel);
itemLabel.setCursor(SWTResourceManager.getCursor(SWT.CURSOR_HAND));
itemLabel.addListener(SWT.MouseEnter, new Listener() { @Override
public void handleEvent(Event event) {
changeItemSelection(itemLabel);
}
});
itemLabel.addListener(SWT.MouseExit, new Listener() { @Override
public void handleEvent(Event event) {
changeItemUnSelection(itemLabel);
}
});
itemLabel.addListener(SWT.MouseDown, new Listener() { @Override
public void handleEvent(Event event) {
Event newEvent = new Event();
newEvent.widget = img;
img.notifyListeners(SWT.MouseDown, newEvent);
}
});
itemComposite.layout(true);
} private void changeItemUnSelection(CLabel itemLabel) {
itemLabel.getParent().setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
Control[] children = itemLabel.getParent().getChildren();
for (Control child : children) {
child.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
}
} protected void addItemHandlerListener(DefinedCommonMultiSelectEvent itemHandlerListener) {
if (null == this.itemHandlerListener) {
this.itemHandlerListener = new ArrayList<DefinedCommonMultiSelectEvent>();
}
this.itemHandlerListener.add(itemHandlerListener);
} public Composite getChooseComposite() {
return chooseComposite;
} protected List<DropDownBox.Data> getSelectedList() {
return selectedList;
} protected void addDropDownCheckBoxImg(DropDownBox.Data data, Label img) {
comboImg.put(data, img);
} public void setSelectedList(List<DropDownBox.Data> selectedList) {
this.selectedList = selectedList;
} public int getChooseWidth() {
return chooseWidth;
} public void setChooseWidth(int chooseWidth) {
this.chooseWidth = chooseWidth;
} public int getChooseItemHeight() {
return chooseItemHeight;
} public void setChooseItemHeight(int chooseItemHeight) {
this.chooseItemHeight = chooseItemHeight;
} public void setDefaultValueList(List<DropDownBox.Data> defaultValueList) {
this.defaultValueList = defaultValueList;
} /**
* 获取已经选择的所有值
*/
@Override
public Object getValue() {
// TODO Auto-generated method stub
return this.selectedList;
} /**
* <p>
* 销毁和添加一个选项发生的事件（主要用于保存后台数据时使用）
* </p>
* @version V1.0
*/
public interface DefinedCommonMultiSelectEvent { /**
*
* @param data
* @param text_composite 输入框控件，该控件data属性key"rootParent",可以拿到该行控件
*/
void disposeItemEvent(DropDownBox.Data data, Composite text_composite); /**
*
* @param data
* @param text_composite 为输入框中的一个item,该控件data属性key"rootParent",可以拿到该行控件
*/
void addItemEvent(DropDownBox.Data data, Composite text_composite);
} }
DefinedCommonMultiSelect.java 为自定义多选下拉框公共部分
package com.view.control.select; import java.util.List; import org.eclipse.swt.widgets.Composite; import com.view.control.select.DefinedCommonMultiSelect.DefinedCommonMultiSelectEvent; /**
* <p>自定义多选择框（parent必须是gridLayout布局）</p>
* @version V1.0
*/
public class DefinedMultiSelect extends DropDownBox<DropDownBox.Data> {
private DefinedCommonMultiSelect commonMultiSelect; public DefinedMultiSelect(Composite parent, List<DropDownBox.Data> comboDataList, int comboRowWidth) {
super(parent, comboDataList, comboRowWidth);
commonMultiSelect = new DefinedCommonMultiSelect(parent,this);
}
public DefinedMultiSelect(Composite parent,List<Data> comboDataList,int chooseWidth,int chooseItemHeight) {
this(parent,comboDataList,chooseWidth);
commonMultiSelect = new DefinedCommonMultiSelect(parent,chooseWidth,chooseItemHeight,this);
} public void paint(){
commonMultiSelect.paint();
} @Override
protected void generateComboItemComposite(Data data, Composite itemComposite) {
commonMultiSelect.generateComboItemComposite(data,itemComposite);
} public void addItemHandlerListener(DefinedCommonMultiSelectEvent itemHandlerListener) {
commonMultiSelect.addItemHandlerListener(itemHandlerListener);
} public List<Data> getSelectedList() {
return commonMultiSelect.getSelectedList();
} public void setSelectedList(List<Data> selectedList) {
commonMultiSelect.setSelectedList(selectedList);
} public int getChooseWidth() {
return commonMultiSelect.getChooseWidth();
} public void setChooseWidth(int chooseWidth) {
commonMultiSelect.setChooseWidth(chooseWidth);
} public int getChooseItemHeight() {
return commonMultiSelect.getChooseItemHeight();
} public void setChooseItemHeight(int chooseItemHeight) {
commonMultiSelect.setChooseItemHeight(chooseItemHeight);
} public Composite getChoseMaxComposite() {
return commonMultiSelect.getChoseMaxComposite();
} public Composite getChooseComposite() {
return commonMultiSelect.getChooseComposite();
} public void setDefaultValueList(List<DropDownBox.Data> defaultValueList) {
commonMultiSelect.setDefaultValueList(defaultValueList);
} public int getHeight(){
return commonMultiSelect.getHeight();
} public void disposeAllChooseItem(){
commonMultiSelect.disposeAllChooseItem();
} /**
* 获取选择的值
*/
@SuppressWarnings("unchecked")
public List<DropDownBox.Data> getValue(){
return (List<DropDownBox.Data>) commonMultiSelect.getValue();
}
}
DefinedMultiSelect.java 多选下拉框（文本框 + 下拉弹出框）
package com.view.control.select; import java.util.ArrayList;
import java.util.List; import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.custom.ScrolledComposite;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell; import com.global.constant.Constants;
import com.util.CollectionUtil;
import com.util.FileUtil;
import com.util.StringUtil;
import com.view.control.DefinedFormControl;
import com.view.control.select.DefinedCommonMultiSelect.DefinedCommonMultiSelectEvent;
import com.view.swt.SWTResourceManager;
import com.view.util.ImageUtil; /**
* <p>多选下拉框不可编辑</p>
* @version V1.0
*/
public class DefinedFormMultiSelect extends DefinedFormControl{
/****内容容器*****/
private Composite contentComposite;
/****显示名称控件****/
private CLabel name;
private DefinedMultiSelect multiSelect;
/****选中内容显示的文本区域 + 下拉图标 总宽度****/
private int chooseWidth = 323;
/****内容框中的每项的高度*****/
private int chooseItemHeight = 24;
/*****显示名称**********/
private String nameText;
/*****设置显示名称控件的宽度*****/
private int nameWidth = 100;
/****默认值***/
private List<DropDownBox.Data> defaultValueList = new ArrayList<>();
private List<DropDownBox.Data> selectedList = new ArrayList<DropDownBox.Data>();
private int comboRowWidth;
private Listener helpListener;
private Listener selectListener; public Listener getSelectListener() {
return selectListener;
} public void setSelectListener(Listener selectListener) {
this.selectListener = selectListener;
} private List<DefinedCommonMultiSelectEvent> multiSelectEventList;
private boolean showValue = false; public DefinedFormMultiSelect(Composite parent,String nameText, List<DropDownBox.Data> comboDataList, int comboRowWidth) {
super(parent);
this.nameText = nameText;
this.selectedList = comboDataList;
this.comboRowWidth = comboRowWidth;
} public DefinedFormMultiSelect(Composite parent,String nameText,List<DropDownBox.Data> comboDataList,int chooseWidth,int nameWidth,int chooseItemHeight) {
this(parent,nameText,comboDataList,chooseWidth);
this.chooseWidth = chooseWidth;
this.nameWidth = nameWidth;
this.chooseItemHeight = chooseItemHeight;
} @Override
public void paint() {
contentComposite = new Composite(this.parent,SWT.NONE);
GridData gd_contentComposite = new GridData(SWT.FILL, SWT.FILL, true, false, 1, 1);
gd_contentComposite.widthHint = this.chooseWidth+nameWidth+2 + (this.helpListener != null? 24:0); //24为帮助图标宽度
contentComposite.setLayoutData(gd_contentComposite);
GridLayout gl_contentComposite = new GridLayout((this.helpListener != null? 4:3), false);
gl_contentComposite.horizontalSpacing = 5;
gl_contentComposite.verticalSpacing = 0;
gl_contentComposite.marginHeight = 0;
contentComposite.setLayout(gl_contentComposite);
contentComposite.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE)); name = new CLabel(contentComposite,SWT.NONE);
GridData gd_name = new GridData(SWT.RIGHT, SWT.FILL, false, true, 1, 1);
gd_name.widthHint = nameWidth - 2;
name.setLayoutData(gd_name);
name.setAlignment(SWT.RIGHT);
if(this.require){
name.setImage(ImageUtil.getImage(FileUtil.loadResourceFileAsStream("images/asterisk.png")));
}
name.setText(nameText);
name.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE)); multiSelect = new DefinedMultiSelect(contentComposite,this.selectedList,this.comboRowWidth);
if(this.chooseWidth != 0){
multiSelect.setChooseWidth(this.chooseWidth);
}
if(this.chooseItemHeight != 0){
multiSelect.setChooseItemHeight(this.chooseItemHeight);
}
if(CollectionUtil.isNotEmpty(defaultValueList)){
multiSelect.setDefaultValueList(defaultValueList);
}
multiSelect.setShowValue(showValue);
multiSelect.addItemHandlerListener(new DefinedCommonMultiSelectEvent() {
@Override
public void disposeItemEvent(DropDownBox.Data data, Composite text_composite) {
reLayoutAllParent(text_composite);
} @Override
public void addItemEvent(DropDownBox.Data data, Composite text_composite) {
reLayoutAllParent(text_composite);
}
});
multiSelect.addItemHandlerListener(new DefinedCommonMultiSelectEvent(){ @Override
public void disposeItemEvent(DropDownBox.Data data, Composite text_composite) {
if(CollectionUtil.isEmpty(multiSelect.getValue()) && require){ //为空
Composite composite = getMentionComposite();
if(composite != null) {
showErrorMention("不能为空",composite);
} }
} @Override
public void addItemEvent(DropDownBox.Data data, Composite text_composite) {
Composite composite = getMentionComposite();
if(null != composite && !composite.isDisposed() && mention != null && !mention.isDisposed()){
showNormalMention(composite);
}
} }); if(CollectionUtil.isNotEmpty(multiSelectEventList)){
for(DefinedCommonMultiSelectEvent event:multiSelectEventList){
multiSelect.addItemHandlerListener(event);
}
} multiSelect.paint(); if(this.helpListener != null){ //添加帮助图标
Label help_img = new Label(contentComposite,SWT.NONE);
help_img.setToolTipText("获取帮助");
help_img.setBackground(SWTResourceManager.getWhiteColor());
help_img.setImage(ImageUtil.getImage(FileUtil.loadResourceFileAsStream(Constants.HELP_NOR)));
GridData gd_help_img = new GridData(SWT.FILL,SWT.FILL,false,false,1,1);
gd_help_img.widthHint = 24;
gd_help_img.heightHint = 24;
help_img.setLayoutData(gd_help_img);
help_img.setCursor(SWTResourceManager.getCursor(SWT.CURSOR_HAND));
help_img.addListener(SWT.MouseDown, this.helpListener);
help_img.addListener(SWT.MouseEnter, new Listener(){
@Override
public void handleEvent(Event event) {
help_img.setImage(ImageUtil.getImage(FileUtil.loadResourceFileAsStream(Constants.HELP_HOVER)));
}
});
help_img.addListener(SWT.MouseExit, new Listener(){
@Override
public void handleEvent(Event event) {
help_img.setImage(ImageUtil.getImage(FileUtil.loadResourceFileAsStream(Constants.HELP_NOR)));
}
});
} mention = new Label(contentComposite,SWT.WRAP);
GridData gd_mention = new GridData(SWT.LEFT, SWT.CENTER, false, true, 1, 1);
if(super.mentionWidth != 0){
gd_mention.widthHint = super.mentionWidth;
}else{
Rectangle bounds = this.parent.getBounds();
if(bounds.width == 0){
bounds = this.parent.getParent().getBounds();
}
gd_mention.widthHint = bounds.width - nameWidth - this.chooseWidth - 10;
}
mention.setLayoutData(gd_mention);
mention.setBackground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
showNormalMention(getMentionComposite());
} /**
* 所有的重新绘制
* @param composite
*/
private void reLayoutAllParent(Composite composite){
Composite contentComposite = composite;
while(contentComposite != this.parent){
contentComposite.layout(true);
contentComposite = contentComposite.getParent();
}
contentComposite.layout(true);
Composite parentComposite = contentComposite.getParent();
while(!(parentComposite instanceof ScrolledComposite) && !(parentComposite instanceof Shell)){
parentComposite.layout(true);
contentComposite = parentComposite;
parentComposite = parentComposite.getParent();
}
if(parentComposite instanceof ScrolledComposite){
((ScrolledComposite)parentComposite).setMinSize(contentComposite.computeSize(SWT.DEFAULT, SWT.DEFAULT));
}
} public void setNameWidth(int nameWidth) {
this.nameWidth = nameWidth;
} public Composite getContentComposite() {
return contentComposite;
} public void setRequire(boolean require) {
this.require = require;
} public void setMention(Label mention) {
this.mention = mention;
} public void setDefaultMention(String defaultMention) {
this.defaultMention = defaultMention;
} public int getChooseWidth() {
return chooseWidth;
} public void setChooseWidth(int chooseWidth) {
this.chooseWidth = chooseWidth;
} public int getChooseItemHeight() {
return chooseItemHeight;
} public void setChooseItemHeight(int chooseItemHeight) {
this.chooseItemHeight = chooseItemHeight;
} public boolean isValidResult() {
return validResult;
} public void setValidResult(boolean validResult) {
this.validResult = validResult;
} public String getDefaultMention() {
return defaultMention;
} public List<DropDownBox.Data> getDefaultValueList() {
return defaultValueList;
} public List<DropDownBox.Data> getSelectedList() {
return selectedList;
} public void setNameText(String nameText) {
this.nameText = nameText;
} public boolean isShowValue() {
return showValue;
} public void setShowValue(boolean showValue) {
this.showValue = showValue;
} public void setDefaultValueList(List<DropDownBox.Data> defaultValueList) {
this.defaultValueList = defaultValueList;
} public void addItemHandlerListener(DefinedCommonMultiSelectEvent itemHandlerListener) {
if(null == this.multiSelectEventList){
this.multiSelectEventList = new ArrayList<DefinedCommonMultiSelectEvent>();
}
this.multiSelectEventList.add(itemHandlerListener);
} public void setHelpListener(Listener helpListener) {
this.helpListener = helpListener;
} @Override
public Composite getMentionComposite() {
// TODO Auto-generated method stub
if(null != multiSelect.getChooseComposite()){
return multiSelect.getChooseComposite().getParent();
}else{
return null;
}
} @Override
public String getValue() {
List<DropDownBox.Data> dataList = multiSelect.getValue();
StringBuilder builder = new StringBuilder();
for(DropDownBox.Data data:dataList){
builder.append(data.getValue()).append(",");
}
if(StringUtil.isNotNullAndEmpty(builder.toString())){
builder = builder.deleteCharAt(builder.length()-1);
}
return builder.toString();
}
}
DefinedFormMultiSelect.java 表单多选下拉框（标题 + 多选下拉框 + 提示 + 可选帮助）
带搜索功能的下拉框见下章节。