帆软报表设计器源代码。
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package com.fr.grid;
import com.fr.base.DynamicUnitList;
import com.fr.base.ScreenResolution;
import com.fr.design.cell.clipboard.CellElementsClip;
import com.fr.design.cell.clipboard.ElementsTransferable;
import com.fr.design.cell.clipboard.FloatElementsClip;
import com.fr.design.mainframe.ElementCasePane;
import com.fr.design.utils.gui.GUICoreUtils;
import com.fr.general.ComparatorUtils;
import com.fr.grid.selection.CellSelection;
import com.fr.grid.selection.FloatSelection;
import com.fr.grid.selection.Selection;
import com.fr.report.ReportHelper;
import com.fr.report.cell.CellElement;
import com.fr.report.cell.FloatElement;
import com.fr.report.cell.TemplateCellElement;
import com.fr.report.cell.cellattr.CellGUIAttr;
import com.fr.report.core.PaintUtils;
import com.fr.report.elementcase.ElementCase;
import com.fr.report.elementcase.TemplateElementCase;
import com.fr.report.stable.ReportConstants;
import com.fr.stable.ColumnRow;
import com.fr.stable.unit.FU;
import com.fr.stable.unit.PT;
import com.fr.stable.unit.UNIT;
import java.awt.*;
import java.awt.geom.Rectangle2D;
import java.util.Iterator;
/**
* Some util method of GUI.
*/
public class GridUtils {
private GridUtils() {
}
//peter:没有Drag
public final static int DRAG_NONE = 0;
//peter:Drag CellSelection的边框来移动元素.
public final static int DRAG_CELLSELECTION = 1;
//peter:Drag CellSelection的右下角落来复制元素
public final static int DRAG_CELLSELECTION_BOTTOMRIGHT_CORNER = 2;
public final static int DRAG_FLOAT = 3;
//peter:下面这几个量是在Drag列的时候用.
public final static int DRAG_CELL_SIZE = 1; //peter:drag的时候改变格子的宽度.
public final static int DRAG_SELECT_UNITS = 2; //peter:drag的时候,选中单元格.
/**
* Is above float element.(the return may be null). <br>
* The length of Object[] is 2, the first is FloatElement, the second is Cursor.<br>
* The object[] is null
*/
public static Object[] getAboveFloatElementCursor(ElementCasePane reportPane, double evtX, double evtY) {
//peter: 将要返回的Objects
Object[] returnObject = null;
ElementCase report = reportPane.getEditingElementCase();
Selection sel = reportPane.getSelection();
//peter:检查所有的悬浮元素.
Iterator flotIt = report.floatIterator();
while (flotIt.hasNext()) {
FloatElement tmpFloatElement = (FloatElement) flotIt.next();
//peter:计算悬浮元素的四个角落的位置.
double[] floatArray = caculateFloatElementLocations(tmpFloatElement, ReportHelper.getColumnWidthList(report),
ReportHelper.getRowHeightList(report), reportPane.getGrid().getVerticalValue(), reportPane.getGrid().getHorizontalValue());
int resolution = ScreenResolution.getScreenResolution();
//peter:悬浮元素的范围.
Rectangle2D floatElementRect = new Rectangle2D.Double(floatArray[0], floatArray[1], tmpFloatElement.getWidth().toPixD(resolution), tmpFloatElement.getHeight().toPixD(resolution));
//peter:不是当前选中的悬浮元素,不支持六个改变大小的点.
if (!(sel instanceof FloatSelection && ComparatorUtils.equals(tmpFloatElement.getName(), ((FloatSelection) sel).getSelectedFloatName()))) {
if (floatElementRect.contains(evtX, evtY)) {
returnObject = new Object[]{tmpFloatElement, new Cursor(Cursor.MOVE_CURSOR)};
}
//peter:还要继续查找,如果当前的鼠标在选中的悬浮元素的六个可以移动的点上,优先.
continue;
}
Cursor cursor = null;
Rectangle2D[] cornerRect = getCornerRect(floatArray);
//peter:悬浮元素对应的六种鼠标.
int[] cursorType = {Cursor.NW_RESIZE_CURSOR, Cursor.N_RESIZE_CURSOR, Cursor.NE_RESIZE_CURSOR, Cursor.E_RESIZE_CURSOR, Cursor.SE_RESIZE_CURSOR,
Cursor.S_RESIZE_CURSOR, Cursor.SW_RESIZE_CURSOR, Cursor.W_RESIZE_CURSOR};
for (int c = 0; c < cornerRect.length; c++) {
if (cornerRect[c].contains(evtX, evtY)) {
cursor = new Cursor(cursorType[c]);
break;
}
}
//peter:在悬浮元素区域内部,但是不在那六个点上,是移动的鼠标
if (floatElementRect.contains(evtX, evtY) && cursor == null) {
returnObject = new Object[]{tmpFloatElement, new Cursor(Cursor.MOVE_CURSOR)};
}
//peter:在当前选中元素的六个点上,最高优先级别,直接返回.
if (cursor != null) {// select
return new Object[]{tmpFloatElement, cursor};
}
}
return returnObject;
}
//peter:悬浮元素的六个可移动的小矩形点.
//marks:当选择的悬浮元素多余一个时候,我们应该不返回悬浮元素的光标
private static Rectangle2D[] getCornerRect(double[] floatArray) {
double floatX1 = floatArray[0];
double floatY1 = floatArray[1];
double floatX2 = floatArray[2];
double floatY2 = floatArray[3];
Rectangle2D[] cornerRect = {new Rectangle2D.Double(floatX1 - 3, floatY1 - 3, 6, 6),
new Rectangle2D.Double((floatX1 + floatX2) / 2 - 3, floatY1 - 3, 6, 6), new Rectangle2D.Double(floatX2 - 3, floatY1 - 3, 6, 6),
new Rectangle2D.Double(floatX2 - 3, (floatY1 + floatY2) / 2 - 3, 6, 6), new Rectangle2D.Double(floatX2 - 3, floatY2 - 3, 6, 6),
new Rectangle2D.Double((floatX1 + floatX2) / 2 - 3, floatY2 - 3, 6, 6), new Rectangle2D.Double(floatX1 - 3, floatY2 - 3, 6, 6),
new Rectangle2D.Double(floatX1 - 3, (floatY1 + floatY2) / 2 - 3, 6, 6)};
return cornerRect;
}
/**
* Gets float element locations. Returns[] {flaotX1, floatY1, floatX2, floatY2}.
*/
public static double[] caculateFloatElementLocations(FloatElement floatElement, DynamicUnitList columnWidthList, DynamicUnitList rowHeightList,
int verticalValue, int horizentalValue) {
int resolution = ScreenResolution.getScreenResolution();
double floatX = columnWidthList.getRangeValue(horizentalValue, 0).toPixD(resolution) + floatElement.getLeftDistance().toPixD(resolution);
double floatY = rowHeightList.getRangeValue(verticalValue, 0).toPixD(resolution) + floatElement.getTopDistance().toPixD(resolution);
double floatX2 = floatX + floatElement.getWidth().toPixD(resolution);
double floatY2 = floatY + floatElement.getHeight().toPixD(resolution);
return new double[]{floatX, floatY, floatX2, floatY2};
}
/**
* Gets column and row which located on (evtX, evtY)
* peter:这个方法重复考虑到Frozen的情况,没有任何BUG,这个方法没有考虑那种不无限增大的情况.
*
* @param reportPane 当前的ReportPane
* @param evtX event x
* @param evtY event y
* @return the event located column and row.
*/
public static ColumnRow getEventColumnRow(ElementCasePane reportPane, double evtX, double evtY) {
ElementCase report = reportPane.getEditingElementCase();
// Width and height list.
DynamicUnitList rowHeightList = ReportHelper.getRowHeightList(report);
DynamicUnitList columnWidthList = ReportHelper.getColumnWidthList(report);
int verticalValue = reportPane.getGrid().getVerticalValue();
int horizentalValue = reportPane.getGrid().getHorizontalValue();
// denny: get verticalBeginValue and horizontalBeginValue;
int verticalBeginValue = reportPane.getGrid().getVerticalBeginValue();
int horizontalBeginValue = reportPane.getGrid().getHorizontalBeginValue();
return ColumnRow.valueOf(
cc_selected_column_or_row(evtX, horizontalBeginValue, horizentalValue, columnWidthList),
cc_selected_column_or_row(evtY, verticalBeginValue, verticalValue, rowHeightList)
);
}
private static int cc_selected_column_or_row(double mouseEvtPosition, int beginValue, int value, DynamicUnitList sizeList) {
double tmpIntIndex = 0;
int selectedCellIndex = 0;
int resolution = ScreenResolution.getScreenResolution();
if (mouseEvtPosition < 0) {
selectedCellIndex = value;
for (; true; selectedCellIndex--) {
if (tmpIntIndex < mouseEvtPosition) {
break;
}
tmpIntIndex -= sizeList.get(selectedCellIndex).toPixD(resolution);
}
} else {
boolean isInnerFrozen = false;
for (int i = beginValue; i < 0; i++) {
tmpIntIndex += sizeList.get(i).toPixD(resolution);
if (tmpIntIndex > mouseEvtPosition) {
selectedCellIndex = i;
isInnerFrozen = true;
break;
}
}
if (!isInnerFrozen) {
selectedCellIndex = value;
for (; true; selectedCellIndex++) {
tmpIntIndex += sizeList.get(selectedCellIndex).toPixD(resolution);
if (tmpIntIndex > mouseEvtPosition) {
break;
}
}
}
}
return selectedCellIndex;
}
/**
* Gets column and row which located on (evtX, evtY)
* peter:这个方法是调整过的Column,Row,不能小于0, 不能大于最大值,这个方法充分考虑了不无限增大的情况.
* 一般经常用这个方法, 对应的getEventColumnRow(...)反而不常用.
*
* @param reportPane 当前的ReportPane
* @param evtX event x
* @param evtY event y
* @return the event located column and row.
*/
public static ColumnRow getAdjustEventColumnRow(ElementCasePane reportPane, double evtX, double evtY) {
ColumnRow selectedCellPoint = GridUtils.getEventColumnRow(reportPane, evtX, evtY);
int col = Math.max(selectedCellPoint.getColumn(), 0);
int row = Math.max(selectedCellPoint.getRow(), 0);
return ColumnRow.valueOf(col, row);
}
/**
* 是否可将当前单元格变为可见的格子
*/
public static boolean canMove(ElementCasePane reportPane, int cellColumn, int cellRow) {
if (reportPane.mustInVisibleRange()) {
Grid grid = reportPane.getGrid();
int verticalEndValue = grid.getVerticalValue() + grid.getVerticalExtent() - 1;
int horizontalEndValue = grid.getHorizontalValue() + grid.getHorizontalExtent() - 1;
if (cellColumn > horizontalEndValue) {
return false;
}
if (cellRow > verticalEndValue) {
return false;
}
}
return true;
}
/**
* 选择一个Cell, 支持Merge.
*/
public static void doSelectCell(ElementCasePane reportPane, int cellColumn, int cellRow) {
ElementCase report = reportPane.getEditingElementCase();
CellElement cellElement = report.getCellElement(cellColumn, cellRow);
if (cellElement == null) {
reportPane.setSelection(new CellSelection(cellColumn, cellRow, 1, 1));
} else {
reportPane.setSelection(new CellSelection(cellElement.getColumn(), cellElement.getRow(), cellElement.getColumnSpan(), cellElement.getRowSpan()));
}
}
/**
* peter: 从ReportPane选中的区域产生ElementsCopy
*/
public static ElementsTransferable caculateElementsTransferable(ElementCasePane reportPane) {
ElementsTransferable elementsTransferable = new ElementsTransferable();
//p:获得当前的Report对象.
ElementCase report = reportPane.getEditingElementCase();
Selection sel = reportPane.getSelection();
//p:先判断悬浮元素.
if (sel instanceof FloatSelection) {
FloatSelection fs = (FloatSelection) sel;
//p:需要构建floatElementsClip.
FloatElementsClip floatElementsClip = new FloatElementsClip(report.getFloatElement(fs.getSelectedFloatName()));
elementsTransferable.addObject(floatElementsClip);
} else {
CellSelection cs = (CellSelection) sel;
java.util.List<TemplateCellElement> elList = new java.util.ArrayList<TemplateCellElement>();
//p:获得所有相交的CellElement.
Rectangle selectionBounds = new Rectangle(cs.getColumn(), cs.getRow(), cs.getColumnSpan(), cs.getRowSpan());
Iterator cells = report.intersect(cs.getColumn(), cs.getRow(), cs.getColumnSpan(), cs.getRowSpan());
while (cells.hasNext()) {
TemplateCellElement cellElement = (TemplateCellElement) cells.next();
Rectangle tmpCellBound = new Rectangle(cellElement.getColumn(), cellElement.getRow(), cellElement.getColumnSpan(), cellElement.getRowSpan());
//peter,相等或者包含
if (GUICoreUtils.isTheSameRect(selectionBounds, tmpCellBound) || selectionBounds.contains(tmpCellBound)) {
//peter:添加到CellElementsClip
elList.add((TemplateCellElement) cellElement.deriveCellElement(cellElement.getColumn() - cs.getColumn(), cellElement.getRow() - cs.getRow()));
}
}
elementsTransferable.addObject(new CellElementsClip(
cs.getColumnSpan(), cs.getRowSpan(), elList.toArray(new TemplateCellElement[elList.size()])
));
}
return elementsTransferable;
}
/**
* james: Gets adjust last columrow of reportpane especially used in whole row/column selected
* the area before last columnrow should contain all the cellelement of the reportpane
*/
public static ColumnRow getAdjustLastColumnRowOfReportPane(ElementCasePane reportPane) {
ElementCase report = reportPane.getEditingElementCase();
//james:全选到最后一个有内容的格子
return ColumnRow.valueOf(Math.max(1, report.getColumnCount()), Math.max(1, report.getRowCount()));
}
/**
* 计算可见区域的行/列数
*/
public static int getExtentValue(int start, DynamicUnitList sizeList, double visibleSize, int dpi) {
double sumSize = 0;
int maxIndex = Integer.MAX_VALUE;
for (int i = start; i <= maxIndex; i++) {
sumSize += sizeList.get(i).toPixD(dpi);
if (sumSize > visibleSize) {
start = i;
// check zero value.
for (int j = i; true; j++) {
if (sizeList.get(j).equal_zero()) {
start = j;
} else {
break;
}
}
break;
}
}
return start;
}
public static void shrinkToFit(int reportShrinkMode, TemplateElementCase tplEC, TemplateCellElement editCellElement) {
DynamicUnitList columnWidthList = ReportHelper.getColumnWidthList(tplEC);
DynamicUnitList rowHeightList = ReportHelper.getRowHeightList(tplEC);
CellGUIAttr cellGUIAttr = editCellElement.getCellGUIAttr();
if (cellGUIAttr == null) {
cellGUIAttr = new CellGUIAttr();
}
// carl:根据用户设置来调整行高或者列宽
if (cellGUIAttr.getAdjustMode() == ReportConstants.AUTO_SHRINK_TO_FIT_HEIGHT
|| (cellGUIAttr.getAdjustMode() == ReportConstants.AUTO_SHRINK_TO_FIT_DEFAULT
&& reportShrinkMode == ReportConstants.AUTO_SHRINK_TO_FIT_HEIGHT)) {
fitHetght(editCellElement, columnWidthList, rowHeightList);
} else if (cellGUIAttr.getAdjustMode() == ReportConstants.AUTO_SHRINK_TO_FIT_WIDTH
|| (cellGUIAttr.getAdjustMode() == ReportConstants.AUTO_SHRINK_TO_FIT_DEFAULT
&& reportShrinkMode == ReportConstants.AUTO_SHRINK_TO_FIT_WIDTH)) {
fitWidth(editCellElement, columnWidthList, rowHeightList);
}
}
private static void fitHetght(TemplateCellElement editCellElement, DynamicUnitList columnWidthList, DynamicUnitList rowHeightList) {
int editElementcolumn = editCellElement.getColumn();
UNIT preferredHeight = PaintUtils.analyzeCellElementPreferredHeight(
editCellElement,
columnWidthList.getRangeValue(editElementcolumn, editElementcolumn + editCellElement.getColumnSpan()));
if (editCellElement.getRowSpan() == 1) {
rowHeightList.set(editCellElement.getRow(),
UNIT.max(preferredHeight, rowHeightList.get(editCellElement.getRow())));
} else {
int lastRowIndex = editCellElement.getRow() + editCellElement.getRowSpan() - 1;
// kurt 画单元格时增加的高度
long extraHeight = preferredHeight.toFU() - rowHeightList.getRangeValue(editCellElement.getRow(), lastRowIndex + 1).toFU();
if (extraHeight > 0) {
// kurt 平分给这些行
for (int m = editCellElement.getRow(); m <= lastRowIndex; m++) {
rowHeightList.set(m, FU.getInstance(rowHeightList.get(m).toFU() + extraHeight
/ editCellElement.getRowSpan()));
}
}
}
}
private static void fitWidth(TemplateCellElement editCellElement, DynamicUnitList columnWidthList, DynamicUnitList rowHeightList) {
UNIT preferredWidth = PaintUtils.getPreferredWidth(editCellElement, PT.valueOfFU(rowHeightList.getRangeValue(editCellElement.getRow(),
editCellElement.getRow() + editCellElement.getRowSpan()).toFU()));
// carl:照着调整行高来弄
if (editCellElement.getColumnSpan() == 1) {
columnWidthList.set(editCellElement.getColumn(), UNIT.max(preferredWidth,
columnWidthList.get(editCellElement.getColumn())));
} else {
int lastColumnIndex = editCellElement.getColumn() + editCellElement.getColumnSpan() - 1;
long extraWidth = preferredWidth.toFU() - columnWidthList.getRangeValue(editCellElement.getColumn(), lastColumnIndex + 1).toFU();
if (extraWidth > 0) {
for (int m = editCellElement.getColumn(); m <= lastColumnIndex; m++) {
columnWidthList.set(m, FU.getInstance(columnWidthList.get(m).toFU() + extraWidth
/ editCellElement.getColumnSpan() + 1));
}
}
}
}
}