using System;
using iTextSharp.text;
/*
* Copyright 2001, 2002 Paulo Soares
*
* The contents of this file are subject to the Mozilla Public License Version 1.1
* (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.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the License.
*
* The Original Code is 'iText, a free JAVA-PDF library'.
*
* The Initial Developer of the Original Code is Bruno Lowagie. Portions created by
* the Initial Developer are Copyright (C) 1999, 2000, 2001, 2002 by Bruno Lowagie.
* All Rights Reserved.
* Co-Developer of the code is Paulo Soares. Portions created by the Co-Developer
* are Copyright (C) 2000, 2001, 2002 by Paulo Soares. All Rights Reserved.
*
* Contributor(s): all the names of the contributors are added in the source code
* where applicable.
*
* Alternatively, the contents of this file may be used under the terms of the
* LGPL license (the "GNU LIBRARY GENERAL PUBLIC LICENSE"), in which case the
* provisions of LGPL are applicable instead of those above. If you wish to
* allow use of your version of this file only under the terms of the LGPL
* License and not to allow others to use your version of this file under
* the MPL, indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by the LGPL.
* If you do not delete the provisions above, a recipient may use your version
* of this file under either the MPL or the GNU LIBRARY GENERAL PUBLIC LICENSE.
*
* This library is free software; you can redistribute it and/or modify it
* under the terms of the MPL as stated above or under the terms of the GNU
* Library General Public License as published by the Free Software Foundation;
* either version 2 of the License, or any later version.
*
* This library is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Library general Public License for more
* details.
*
* If you didn't download this code from the following link, you should check if
* you aren't using an obsolete version:
* http://www.lowagie.com/iText/
*/
namespace iTextSharp.text.pdf {
/**
* A row in a PdfPTable.
*
* @author Paulo Soares (psoares@consiste.pt)
*/
public class PdfPRow {
/** the bottom limit (bottom right y) */
public const float BOTTOM_LIMIT = -(1 << 30);
protected PdfPCell[] cells;
protected float[] widths;
protected float maxHeight = 0;
protected bool calculated = false;
private int[] canvasesPos;
/**
* Constructs a new PdfPRow with the cells in the array that was passed as a parameter.
* @param cells
*/
public PdfPRow(PdfPCell[] cells) {
this.cells = cells;
widths = new float[cells.Length];
}
/**
* Makes a copy of an existing row.
* @param row
*/
public PdfPRow(PdfPRow row) {
maxHeight = row.maxHeight;
calculated = row.calculated;
cells = new PdfPCell[row.cells.Length];
for (int k = 0; k < cells.Length; ++k) {
if (row.cells[k] != null)
cells[k] = new PdfPCell(row.cells[k]);
}
widths = new float[cells.Length];
Array.Copy(row.widths, 0, widths, 0, cells.Length);
}
/**
* Sets the widths of the columns in the row.
* @param widths
* @return true if everything went right
*/
public bool SetWidths(float[] widths) {
if (widths.Length != cells.Length)
return false;
Array.Copy(widths, 0, this.widths, 0, cells.Length);
float total = 0;
calculated = false;
for (int k = 0; k < widths.Length; ++k) {
PdfPCell cell = cells[k];
cell.Left = total;
int last = k + cell.Colspan;
for (; k < last; ++k)
total += widths[k];
--k;
cell.Right = total;
cell.Top = 0;
}
return true;
}
/**
* Calculates the heights of each cell in the row.
* @return the maximum height of the row.
*/
public float CalculateHeights() {
maxHeight = 0;
for (int k = 0; k < cells.Length; ++k) {
PdfPCell cell = cells[k];
if (cell == null)
continue;
Image img = cell.Image;
if (img != null) {
img.ScalePercent(100);
float refWidth = img.ScaledWidth;
if (cell.Rotation == 90 || cell.Rotation == 270) {
refWidth = img.ScaledHeight;
}
float scale = (cell.Right - cell.EffectivePaddingRight
- cell.EffectivePaddingLeft - cell.Left)
/ refWidth;
img.ScalePercent(scale * 100);
float refHeight = img.ScaledHeight;
if (cell.Rotation == 90 || cell.Rotation == 270) {
refHeight = img.ScaledWidth;
}
cell.Bottom = cell.Top - cell.EffectivePaddingTop
- cell.EffectivePaddingBottom
- refHeight;
} else {
if (cell.Rotation == 0 || cell.Rotation == 180) {
float rightLimit = cell.NoWrap ? 20000 : cell.Right
- cell.EffectivePaddingRight;
float bry = (cell.FixedHeight > 0) ? cell.Top
- cell.EffectivePaddingTop
+ cell.EffectivePaddingBottom
- cell.FixedHeight : BOTTOM_LIMIT;
ColumnText ct = ColumnText.Duplicate(cell.Column);
SetColumn(ct,
cell.Left + cell.EffectivePaddingLeft, bry,
rightLimit, cell.Top - cell.EffectivePaddingTop);
ct.Go(true);
float yLine = ct.YLine;
if (cell.UseDescender)
yLine += ct.Descender;
cell.Bottom = yLine - cell.EffectivePaddingBottom;
}
else {
if (cell.FixedHeight > 0) {
cell.Bottom = cell.Top - cell.FixedHeight;
}
else {
ColumnText ct = ColumnText.Duplicate(cell.Column);
SetColumn(ct, 0, cell.Left + cell.EffectivePaddingLeft,
20000, cell.Right - cell.EffectivePaddingRight);
ct.Go(true);
cell.Bottom = cell.Top - cell.EffectivePaddingTop
- cell.EffectivePaddingBottom - ct.FilledWidth;
}
}
}
float height = cell.FixedHeight;
if (height <= 0)
height = cell.Height;
if (height < cell.FixedHeight)
height = cell.FixedHeight;
else if (height < cell.MinimumHeight)
height = cell.MinimumHeight;
if (height > maxHeight)
maxHeight = height;
}
calculated = true;
return maxHeight;
}
/**
* Writes the border and background of one cell in the row.
* @param xPos
* @param yPos
* @param cell
* @param canvases
*/
public void WriteBorderAndBackground(float xPos, float yPos, PdfPCell cell,
PdfContentByte[] canvases) {
PdfContentByte lines = canvases[PdfPTable.LINECANVAS];
PdfContentByte backgr = canvases[PdfPTable.BACKGROUNDCANVAS];
// the coordinates of the border are retrieved
float x1 = cell.Left + xPos;
float y2 = cell.Top + yPos;
float x2 = cell.Right + xPos;
float y1 = y2 - maxHeight;
// the backgroundcolor is set
Color background = cell.BackgroundColor;
if (background != null) {
backgr.SetColorFill(background);
backgr.Rectangle(x1, y1, x2 - x1, y2 - y1);
backgr.Fill();
}
// if the element hasn't got any borders, nothing is added
if (cell.HasBorders()) {
if (cell.UseVariableBorders) {
Rectangle borderRect = new Rectangle(cell.Left + xPos, cell.Top
- maxHeight + yPos, cell.Right + xPos, cell.Top
+ yPos);
borderRect.CloneNonPositionParameters(cell);
borderRect.BackgroundColor = null;
lines.Rectangle(borderRect);
} else {
// the width is set to the width of the element
if (cell.BorderWidth != Rectangle.UNDEFINED) {
lines.SetLineWidth(cell.BorderWidth);
}
// the color is set to the color of the element
Color color = cell.BorderColor;
if (color != null) {
lines.SetColorStroke(color);
}
// if the box is a rectangle, it is added as a rectangle
if (cell.HasBorder(Rectangle.BOX)) {
lines.Rectangle(x1, y1, x2 - x1, y2 - y1);
}
// if the border isn't a rectangle, the different sides are
// added apart
else {
if (cell.HasBorder(Rectangle.RIGHT_BORDER)) {
lines.MoveTo(x2, y1);
lines.LineTo(x2, y2);
}
if (cell.HasBorder(Rectangle.LEFT_BORDER)) {
lines.MoveTo(x1, y1);
lines.LineTo(x1, y2);
}
if (cell.HasBorder(Rectangle.BOTTOM_BORDER)) {
lines.MoveTo(x1, y1);
lines.LineTo(x2, y1);
}
if (cell.HasBorder(Rectangle.TOP_BORDER)) {
lines.MoveTo(x1, y2);
lines.LineTo(x2, y2);
}
}
lines.Stroke();
if (color != null) {
lines.ResetRGBColorStroke();
}
}
}
}
private void SaveAndRotateCanvases(PdfContentByte[] canvases, float a, float b, float c, float d, float e, float f) {
int last = PdfPTable.TEXTCANVAS + 1;
if (canvasesPos == null) {
canvasesPos = new int[last * 2];
}
for (int k = 0; k < last; ++k) {
ByteBuffer bb = canvases[k].InternalBuffer;
canvasesPos[k * 2] = bb.Size;
canvases[k].SaveState();
canvases[k].ConcatCTM(a, b, c, d, e, f);
canvasesPos[k * 2 + 1] = bb.Size;
}
}
private void RestoreCanvases(PdfContentByte[] canvases) {
int last = PdfPTable.TEXTCANVAS + 1;
for (int k = 0; k < last; ++k) {
ByteBuffer bb = canvases[k].InternalBuffer;
int p1 = bb.Size;
canvases[k].RestoreState();
if (p1 == canvasesPos[k * 2 + 1])
bb.Size = canvasesPos[k * 2];
}
}
private float SetColumn(ColumnText ct, float llx, float lly, float urx, float ury) {
if (llx > urx)
urx = llx;
if (lly > ury)
ury = lly;
ct.SetSimpleColumn(llx, lly, urx, ury);
return ury;
}
/**
* Writes a number of cells (not necessarily all cells).
* @param colStart
* @param colEnd
* @param xPos
* @param yPos
* @param canvases
*/
public void WriteCells(int colStart, int colEnd, float xPos, float yPos,
PdfContentByte[] canvases) {
if (!calculated)
CalculateHeights();
if (colEnd < 0)
colEnd = cells.Length;
colEnd = Math.Min(colEnd, cells.Length);
if (colStart < 0)
colStart = 0;
if (colStart >= colEnd)
return;
int newStart;
for (newStart = colStart; newStart >= 0; --newStart) {
if (cells[newStart] != null)
break;
xPos -= widths[newStart - 1];
}
xPos -= cells[newStart].Left;
for (int k = newStart; k < colEnd; ++k) {
PdfPCell cell = cells[k];
if (cell == null)
continue;
WriteBorderAndBackground(xPos, yPos, cell, canvases);
Image img = cell.Image;
float tly = 0;
switch (cell.VerticalAlignment) {
case Element.ALIGN_BOTTOM:
tly = cell.Top + yPos - maxHeight + cell.Height
- cell.EffectivePaddingTop;
break;
case Element.ALIGN_MIDDLE:
tly = cell.Top + yPos + (cell.Height - maxHeight) / 2
- cell.EffectivePaddingTop;
break;
default:
tly = cell.Top + yPos - cell.EffectivePaddingTop;
break;
}
if (img != null) {
if (cell.Rotation != 0) {
img = Image.GetInstance(img);
img.Rotation = img.GetImageRotation() + (float)(cell.Rotation * Math.PI / 180.0);
}
bool vf = false;
if (cell.Height > maxHeight) {
img.ScalePercent(100);
float scale = (maxHeight - cell.EffectivePaddingTop - cell
.EffectivePaddingBottom)
/ img.ScaledHeight;
img.ScalePercent(scale * 100);
vf = true;
}
float left = cell.Left + xPos
+ cell.EffectivePaddingLeft;
if (vf) {
switch (cell.HorizontalAlignment) {
case Element.ALIGN_CENTER:
left = xPos
+ (cell.Left + cell.EffectivePaddingLeft
+ cell.Right
- cell.EffectivePaddingRight - img
.ScaledWidth) / 2;
break;
case Element.ALIGN_RIGHT:
left = xPos + cell.Right
- cell.EffectivePaddingRight
- img.ScaledWidth;
break;
default:
break;
}
tly = cell.Top + yPos - cell.EffectivePaddingTop;
}
img.SetAbsolutePosition(left, tly - img.ScaledHeight);
canvases[PdfPTable.TEXTCANVAS].AddImage(img);
} else {
if (cell.Rotation == 90 || cell.Rotation == 270) {
float netWidth = maxHeight - cell.EffectivePaddingTop - cell.EffectivePaddingBottom;
float netHeight = cell.Width - cell.EffectivePaddingLeft - cell.EffectivePaddingRight;
ColumnText ct = ColumnText.Duplicate(cell.Column);
ct.Canvases = canvases;
ct.SetSimpleColumn(0, 0, netWidth + 0.001f, -netHeight);
ct.Go(true);
float calcHeight = -ct.YLine;
if (netWidth <= 0 || netHeight <= 0)
calcHeight = 0;
if (calcHeight > 0) {
if (cell.UseDescender)
calcHeight -= ct.Descender;
ct = ColumnText.Duplicate(cell.Column);
ct.Canvases = canvases;
ct.SetSimpleColumn(0, -0.001f, netWidth + 0.001f, calcHeight);
float pivotX;
float pivotY;
if (cell.Rotation == 90) {
pivotY = cell.Top + yPos - maxHeight + cell.EffectivePaddingBottom;
switch (cell.VerticalAlignment) {
case Element.ALIGN_BOTTOM:
pivotX = cell.Left + xPos + cell.Width - cell.EffectivePaddingRight;
break;
case Element.ALIGN_MIDDLE:
pivotX = cell.Left + xPos + (cell.Width + cell.EffectivePaddingLeft - cell.EffectivePaddingRight + calcHeight) / 2;
break;
default: //top
pivotX = cell.Left + xPos + cell.EffectivePaddingLeft + calcHeight;
break;
}
SaveAndRotateCanvases(canvases, 0,1,-1,0,pivotX,pivotY);
}
else {
pivotY = cell.Top + yPos - cell.EffectivePaddingTop;
switch (cell.VerticalAlignment) {
case Element.ALIGN_BOTTOM:
pivotX = cell.Left + xPos + cell.EffectivePaddingLeft;
break;
case Element.ALIGN_MIDDLE:
pivotX = cell.Left + xPos + (cell.Width + cell.EffectivePaddingLeft - cell.EffectivePaddingRight - calcHeight) / 2;
break;
default: //top
pivotX = cell.Left + xPos + cell.Width - cell.EffectivePaddingRight - calcHeight;
break;
}
SaveAndRotateCanvases(canvases, 0,-1,1,0,pivotX,pivotY);
}
try {
ct.Go();
} finally {
RestoreCanvases(canvases);
}
}
}
else {
float fixedHeight = cell.FixedHeight;
float rightLimit = cell.Right + xPos
- cell.EffectivePaddingRight;
float leftLimit = cell.Left + xPos
+ cell.EffectivePaddingLeft;
if (cell.NoWrap) {
switch (cell.HorizontalAlignment) {
case Element.ALIGN_CENTER:
rightLimit += 10000;
leftLimit -= 10000;
break;
case Element.ALIGN_RIGHT:
leftLimit -= 20000;
break;
default:
rightLimit += 20000;
break;
}
}
ColumnText ct = ColumnText.Duplicate(cell.Column);
ct.Canvases = canvases;
float bry = tly
- (maxHeight /* cell.Height */
- cell.EffectivePaddingTop - cell
.EffectivePaddingBottom);
if (fixedHeight > 0) {
if (cell.Height > maxHeight) {
tly = cell.Top + yPos - cell.EffectivePaddingTop;
bry = cell.Top + yPos - maxHeight
+ cell.EffectivePaddingBottom;
}
}
if (tly > bry && leftLimit < rightLimit) {
ct.SetSimpleColumn(leftLimit, bry - 0.001f, rightLimit, tly);
if (cell.Rotation == 180) {
float shx = leftLimit + rightLimit;
float shy = yPos + yPos - maxHeight + cell.EffectivePaddingBottom - cell.EffectivePaddingTop;
SaveAndRotateCanvases(canvases, -1,0,0,-1,shx,shy);
}
try {
ct.Go();
} finally {
if (cell.Rotation == 180) {
RestoreCanvases(canvases);
}
}
}
}
}
IPdfPCellEvent evt = cell.CellEvent;
if (evt != null) {
Rectangle rect = new Rectangle(cell.Left + xPos, cell.Top
+ yPos - maxHeight, cell.Right + xPos, cell.Top
+ yPos);
evt.CellLayout(cell, rect, canvases);
}
}
}
/**
* Checks if the dimensions of the columns were calculated.
* @return true if the dimensions of the columns were calculated
*/
public bool IsCalculated() {
return calculated;
}
/**
* Gets the maximum height of the row (i.e. of the 'highest' cell).
* @return the maximum height of the row
*/
public float MaxHeights {
get {
if (calculated)
return maxHeight;
else
return CalculateHeights();
}
set {
this.maxHeight = value;
}
}
internal float[] GetEventWidth(float xPos) {
int n = 0;
for (int k = 0; k < cells.Length; ++k) {
if (cells[k] != null)
++n;
}
float[] width = new float[n + 1];
n = 0;
width[n++] = xPos;
for (int k = 0; k < cells.Length; ++k) {
if (cells[k] != null) {
width[n] = width[n - 1] + cells[k].Width;
++n;
}
}
return width;
}
/**
* Splits a row to newHeight. The returned row is the remainder. It will
* return null if the newHeight was so small that only an empty row would
* result.
*
* @param newHeight
* the new height
* @return the remainder row or null if the newHeight was so small that only
* an empty row would result
*/
public PdfPRow SplitRow(float newHeight) {
PdfPCell[] newCells = new PdfPCell[cells.Length];
float[] fh = new float[cells.Length * 2];
bool allEmpty = true;
for (int k = 0; k < cells.Length; ++k) {
PdfPCell cell = cells[k];
if (cell == null)
continue;
fh[k * 2] = cell.FixedHeight;
fh[k * 2 + 1] = cell.MinimumHeight;
Image img = cell.Image;
PdfPCell c2 = new PdfPCell(cell);
if (img != null) {
if (newHeight > cell.EffectivePaddingBottom
+ cell.EffectivePaddingTop + 2) {
c2.Phrase = null;
allEmpty = false;
}
} else {
int status;
float y;
ColumnText ct = ColumnText.Duplicate(cell.Column);
if (cell.Rotation == 90 || cell.Rotation == 270) {
y = SetColumn(ct,
cell.Top - newHeight + cell.EffectivePaddingBottom,
cell.Left + cell.EffectivePaddingLeft,
cell.Top - cell.EffectivePaddingTop,
cell.Right - cell.EffectivePaddingRight);
}
else {
float rightLimit = cell.NoWrap ? 20000 : cell.Right
- cell.EffectivePaddingRight;
float y1 = cell.Top - newHeight
+ cell.EffectivePaddingBottom;
float y2 = cell.Top - cell.EffectivePaddingTop;
y = Math.Max(y1, y2);
y = SetColumn(ct,
cell.Left + cell.EffectivePaddingLeft, y1,
rightLimit, y2);
}
status = ct.Go(true);
bool thisEmpty = (ct.YLine == y);
if (thisEmpty)
ct = ColumnText.Duplicate(cell.Column);
allEmpty = (allEmpty && thisEmpty);
if ((status & ColumnText.NO_MORE_TEXT) == 0 || thisEmpty) {
c2.Column = ct;
ct.FilledWidth = 0;
} else {
c2.Phrase = null;
}
}
newCells[k] = c2;
cell.FixedHeight = newHeight;
}
if (allEmpty) {
for (int k = 0; k < cells.Length; ++k) {
PdfPCell cell = cells[k];
if (cell == null)
continue;
float f = fh[k * 2];
float m = fh[k * 2 + 1];
if (f <= 0)
cell.MinimumHeight = m;
else
cell.FixedHeight = f;
}
return null;
}
CalculateHeights();
PdfPRow split = new PdfPRow(newCells);
split.widths = (float[]) widths.Clone();
split.CalculateHeights();
return split;
}
}
}
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