/*
* Copyright 2011 Gaurav Saxena < gsaxena81 AT gmail.com >
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not
* use this file except in compliance with the License. You may obtain a copy of
* the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations under
* the License.
*/
package com.vk.gwt.designer.client.ui.widget.table.vkGrid;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.Iterator;
import java.util.List;
import com.google.gwt.json.client.JSONArray;
import com.google.gwt.json.client.JSONObject;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.Panel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
import com.vk.gwt.designer.client.api.component.IVkWidget;
import com.vk.gwt.designer.client.designer.UndoHelper;
import com.vk.gwt.designer.client.designer.VkAbstractWidgetEngine;
import com.vk.gwt.designer.client.designer.VkDesignerUtil;
import com.vk.gwt.designer.client.designer.VkDesignerUtil.IDialogCallback;
import com.vk.gwt.designer.client.designer.VkStateHelper;
public class VkGridEngine extends VkAbstractWidgetEngine<VkGrid> {
private static final String ADD_NEW_ROW = "Add New Row";
private static final String ADD_NEW_COLUMN = "Add New Column";
private static final String REMOVE_ROW = "Remove Selected Row";
private static final String REMOVE_COLUMN = "Remove Selected Column";
private static final String ADD_CELLSPACING = "Add Cell Spacing";
private static final String ADD_CELLPADDING = "Add Cell Padding";
@Override
public VkGrid getWidget() {
VkGrid widget = new VkGrid();
init(widget);
DOM.setStyleAttribute(widget.getElement(), "width", "100px");
DOM.setStyleAttribute(widget.getElement(), "height", "20px");
return widget;
}
@Override
public List<String> getAttributesList(Widget invokingWidget)
{
List<String> list = VkStateHelper.getInstance().getEngine().getAttributesList(invokingWidget);
list.add(ADD_NEW_ROW);
list.add(ADD_NEW_COLUMN);
list.add(REMOVE_ROW);
list.add(REMOVE_COLUMN);
list.add(ADD_CELLSPACING);
list.add(ADD_CELLPADDING);
return list;
}
@Override
public void applyAttribute(String attributeName, Widget invokingWidget) {
final VkGrid table = (VkGrid)invokingWidget;
if(attributeName.equals(ADD_NEW_ROW))
addNewRow(table);
else if(attributeName.equals(ADD_NEW_COLUMN))
addNewColumn(table);
else if(attributeName.equals(REMOVE_COLUMN))
removeSelectedColumns(table);
else if(attributeName.equals(REMOVE_ROW))
removeSelectedRows(table);
else if (attributeName.equals(ADD_CELLSPACING))
addCellSpacing(table);
else if (attributeName.equals(ADD_CELLPADDING))
addCellPadding(table);
else
VkStateHelper.getInstance().getEngine().applyAttribute(attributeName, invokingWidget);
}
private void removeSelectedColumns(final VkGrid table) {
final ArrayList<int[]> cells = getSelectedCells(table);
Collections.sort(cells, new Comparator<int[]>() {
@Override
public int compare(int[] o1, int[] o2) {
return o2[1] - o1[1];
}
});
for(Iterator<int[]> i = cells.iterator(); i.hasNext();) {
int[] last = i.next();
while(i.hasNext()) {
int[] temp = i.next();
if(temp[1] == last[1])
i.remove();
else
last = temp;
}
break;
}
if(cells.isEmpty())
Window.alert("Please select cells before applying cell operations");
else {
VkGrid vkGrid = new VkGrid();
vkGrid.resize(table.getRowCount(), table.getColumnCount());
final VkGrid oldTable =(VkGrid) this.deepClone(table, vkGrid);
UndoHelper.getInstance().doCommand(new Command(){
@Override
public void execute() {
for(int[] i : cells)
table.removeColumn(i[1]);
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}}, new Command(){
@Override
public void execute() {
restoreOldTable(table, oldTable);
}});
}
clearAndStopCellSelection(table);
}
private void restoreOldTable(VkGrid table, VkGrid oldTable) {
table.resize(0, 0);
for(int i = 0, rowCount = oldTable.getRowCount(); i < rowCount; i++)
table.insertRow(i);
for(int i = 0, colCount = oldTable.getColumnCount(); i < colCount; i++)
table.insertColumn(i);
for(int i = 0, rowCount = oldTable.getRowCount(); i < rowCount; i++) {
for(int j = 0, colCount = oldTable.getCellCount(i); j < colCount; j++) {
if(oldTable.getWidget(i, j) != null) {
Widget widget = oldTable.getWidget(i, j);
table.setWidget(i, j, widget);
}
}
}
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}
private ArrayList<int[]> getSelectedCells(VkGrid table) {
ArrayList<int[]> cells = new ArrayList<int[]>();
for(int i = 0, rowCount = table.getRowCount(); i < rowCount; i++)
for(int j = 0, colCount = table.getCellCount(i); j < colCount; j++)
if(table.getCellFormatter().getStyleName(i, j).indexOf("vkflextable-cell-selected") > -1)
cells.add(new int[]{i, j});
return cells;
}
private void removeSelectedRows(final VkGrid table) {
final ArrayList<int[]> cells = getSelectedCells(table);
Collections.sort(cells, new Comparator<int[]>() {
@Override
public int compare(int[] o1, int[] o2) {
return o2[0] - o1[0];
}
});
for(Iterator<int[]> i = cells.iterator(); i.hasNext();) {
int[] last = i.next();
while(i.hasNext()) {
int[] temp = i.next();
if(temp[0] == last[0])
i.remove();
else
last = temp;
}
break;
}
if(cells.isEmpty())
Window.alert("Please select cells before applying cell operations");
else {
VkGrid vkGrid = new VkGrid();
vkGrid.resize(table.getRowCount(), table.getColumnCount());
final VkGrid oldTable =(VkGrid) this.deepClone(table, vkGrid);
UndoHelper.getInstance().doCommand(new Command(){
@Override
public void execute() {
for(int[] i : cells)
table.removeRow(i[0]);
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}}, new Command(){
@Override
public void execute() {
restoreOldTable(table, oldTable);
}});
}
clearAndStopCellSelection(table);
}
private void addNewColumn(final VkGrid table) {
final ArrayList<int[]> cells = getSelectedCells(table);
if(cells.isEmpty())
Window.alert("Please select cells before applying cell operations");
else {
VkGrid vkGrid = new VkGrid();
vkGrid.resize(table.getRowCount(), table.getColumnCount());
final VkGrid oldTable =(VkGrid) this.deepClone(table, vkGrid);
UndoHelper.getInstance().doCommand(new Command(){
@Override
public void execute() {
int columnNumber = 0;
table.resizeColumns(table.getColumnCount() + 1);
columnNumber = cells.get(0)[1];
table.removeColumn(table.getColumnCount() - 1);
table.insertColumn(columnNumber + 1);
for(int i = 0, rowCount = table.getRowCount(); i < rowCount; i++)
for(int j = 0, colCount = table.getColumnCount(); j < colCount; j++)
DOM.setElementAttribute(table.getCellFormatter().getElement(i, j), "col", Integer.toString(j));
for(int i = columnNumber + 2, len = table.getColumnCount(); i < len; i++)
table.getColumnFormatter().setWidth(i, DOM.getElementAttribute(table.getColumnFormatter().getElement(i - 1), "width"));
}}, new Command(){
@Override
public void execute() {
restoreOldTable(table, oldTable);
}});
clearAndStopCellSelection(table);
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}
}
private void addNewRow(final VkGrid table) {
final ArrayList<int[]> cells = getSelectedCells(table);
if(cells.isEmpty())
Window.alert("Please select cells before applying cell operations");
else {
VkGrid vkGrid = new VkGrid();
vkGrid.resize(table.getRowCount(), table.getColumnCount());
final VkGrid oldTable =(VkGrid) this.deepClone(table, vkGrid);
UndoHelper.getInstance().doCommand(new Command(){
@Override
public void execute() {
table.insertRow(cells.get(0)[0] + 1);
}}, new Command(){
@Override
public void execute() {
restoreOldTable(table, oldTable);
}});
clearAndStopCellSelection(table);
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}
}
private void addCellPadding(final VkGrid table) {
TextBox tb = new TextBox();
tb.setWidth("300px");
VkDesignerUtil.showAddTextAttributeDialog("Add Cell Spacing", tb, new IDialogCallback() {
@Override
public void save(String text) {
int padding = 0;
final int priorPadding = table.getCellPadding();
try{
padding = Integer.parseInt(text.trim());
final int finalPadding = padding;
UndoHelper.getInstance().doCommand(new Command(){
@Override
public void execute() {
table.setCellPadding(finalPadding);
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}}, new Command(){
@Override
public void execute() {
table.setCellPadding(priorPadding);
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}});
} catch(NumberFormatException e) {
Window.alert("Cell Padding cannot be non-numeric");
}
}
});
}
private void addCellSpacing(final VkGrid table) {
TextBox tb = new TextBox();
tb.setWidth("300px");
VkDesignerUtil.showAddTextAttributeDialog("Add Cell Spacing", tb, new IDialogCallback() {
@Override
public void save(String text) {
int spacing = 0;
final int priorSpacing = table.getCellSpacing();
try{
spacing = Integer.parseInt(text.trim());
final int finalSpacing = spacing;
UndoHelper.getInstance().doCommand(new Command(){
@Override
public void execute() {
table.setCellSpacing(finalSpacing);
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}}, new Command(){
@Override
public void execute() {
table.setCellSpacing(priorSpacing);
VkStateHelper.getInstance().getToolbarHelper().showToolbar(table);
}});
} catch(NumberFormatException e) {
Window.alert("Cell Spacing cannot be non-numeric");
}
}
});
}
private void clearAndStopCellSelection(VkGrid table) {
int rowCount = table.getRowCount();
for(int i = 0; i < rowCount; i++)
{
int colCount = table.getCellCount(i);
for(int j = 0; j < colCount; j++)
table.getCellFormatter().setStyleName(i, j, "");
}
}
@Override
public String serialize(IVkWidget widget)
{
StringBuffer buffer = new StringBuffer("{");
buffer.append("widgetName:'").append(widget.getWidgetName()).append("'");
buffer.append(",style:'").append(VkDesignerUtil.getCssText((Widget) widget))
.append("'");
serializeAttributes(buffer, (Widget) widget);
VkGrid table = (VkGrid)widget;
buffer.append(",widths:[").append(getColumnWidths(table)).append("]")
.append(",heights:[").append(getRowHeights(table)).append("]");
buffer.append(",rows:").append(table.getRowCount()).append(",cols:").append(table.getColumnCount())
.append(",cells:[");
int rowCount = table.getRowCount();
for(int i = 0; i < rowCount; i++)
{
int colCount = table.getCellCount(i);
for(int j = 0; j < colCount; j++)
buffer.append("{row:").append(i).append(",col:").append(j)
.append(",child:").append(VkStateHelper.getInstance().getWidgetEngineMapping().getEngineMap()
.get(((IVkWidget)table.getWidget(i,j)).getWidgetName())
.serialize((IVkWidget) table.getWidget(i,j)))
.append("},");
}
if(buffer.charAt(buffer.length() - 1) == ',')
buffer.deleteCharAt(buffer.length() - 1);
buffer.append("]");
buffer.append(",children:[").append("]}");
return buffer.toString();
}
private StringBuffer getRowHeights(VkGrid flexTable) {
int rowCount = flexTable.getRowCount();
StringBuffer buf = new StringBuffer();
for(int i = 0; i < rowCount; i++)
buf.append(DOM.getElementAttribute(flexTable.getRowFormatter().getElement(i), "height").replaceAll("px", ""))
.append(",");
if(buf.length() > 0)
buf.deleteCharAt(buf.length() - 1);
return buf;
}
private StringBuffer getColumnWidths(VkGrid table) {
int numberOfCols = table.getColumnCount();
StringBuffer buf = new StringBuffer();
for(int i = 0; i < numberOfCols; i++)
buf.append(DOM.getElementAttribute(table.getColumnFormatter().getElement(i), "width").replaceAll("px", ""))
.append(",");
if(buf.length() > 0)
buf.deleteCharAt(buf.length() - 1);
return buf;
}
@Override
public void buildWidget(JSONObject jsonObj, Widget parent) {
VkGrid table = (VkGrid)parent;
addAttributes(jsonObj, parent);
table.resize((int)jsonObj.get("rows").isNumber().doubleValue()
, (int)jsonObj.get("cols").isNumber().doubleValue());
JSONArray cellsArray = jsonObj.get("cells").isArray();
for(int i = 0; i < cellsArray.size(); i++)
{
int row = (int)cellsArray.get(i).isObject().get("row").isNumber().doubleValue();
int col = (int)cellsArray.get(i).isObject().get("col").isNumber().doubleValue();
table.makeCell(row, col);
Widget widget = table.getWidget(row, col);
JSONObject child = cellsArray.get(i).isObject().get("child").isObject();
//addAttributes(child, widget);
VkStateHelper.getInstance().getWidgetEngineMapping().getEngineMap().get(((IVkWidget)widget).getWidgetName()).buildWidget(child, widget);
}
JSONArray widthArray = jsonObj.get("widths").isArray();
for(int i = 0; i < widthArray.size(); i++)
table.getColumnFormatter().setWidth(i, widthArray.get(i).isNumber().doubleValue() + "px");
JSONArray heightArray = jsonObj.get("heights").isArray();
for(int i = 0; i < heightArray.size(); i++)
DOM.setElementAttribute(table.getRowFormatter().getElement(i), "height"
, heightArray.get(i).isNumber().doubleValue() + "px");
}
@Override
public Widget deepClone(Widget sourceWidget, Widget targetWidget) {
((VkGrid)targetWidget).resize(((VkGrid)sourceWidget).getRowCount(), ((VkGrid)sourceWidget).getColumnCount());
return super.deepClone(sourceWidget, targetWidget);
}
@Override
public void copyAttributes(Widget widgetSource, Widget widgetTarget){
super.copyAttributes(widgetSource, widgetTarget);
VkGrid sourceTable = (VkGrid)widgetSource;
VkGrid targetTable = (VkGrid)widgetTarget;
int rowCount = sourceTable.getRowCount();
VkStateHelper.getInstance().setDesignerMode(true);
for(int i = 0; i < rowCount; i++) {
for(int j = 0, colNum = 0, columnCount = sourceTable.getCellCount(i); j < columnCount; j++, colNum++) {
targetTable.makeCell(i, j);
Panel sourcePanel = (Panel) sourceTable.getWidget(i, j);
Panel targetPanel = (Panel) targetTable.getWidget(i, j);
for(Widget k : sourcePanel) {
IVkWidget currentWidget = ((IVkWidget) k);
Widget newWidget = VkStateHelper.getInstance().getEngine().getWidget(currentWidget.getWidgetName());
VkStateHelper.getInstance().getWidgetEngineMapping().getEngineMap().get(currentWidget.getWidgetName()).deepClone((Widget) currentWidget, newWidget);
targetPanel.add(newWidget);
}
}
DOM.setElementAttribute(targetTable.getRowFormatter().getElement(i), "height", DOM.getElementAttribute(sourceTable.getRowFormatter().getElement(i), "height"));
}
VkStateHelper.getInstance().setDesignerMode(false);//because it would be false when this would be called from VkAbstractWidgetEngine#deepClone
for(int i = 0, colCount = sourceTable.getColumnCount(); i < colCount; i++)
targetTable.getColumnFormatter().setWidth(i, DOM.getElementAttribute(sourceTable.getColumnFormatter().getElement(i), "width"));
}
}