public void TableLayoutPanel_GrowStyle_Set_GetReturnsExpected(TableLayoutPanelGrowStyle value)
{
var panel = new TableLayoutPanel
{
GrowStyle = value
};
Assert.Equal(value, panel.GrowStyle);
}
public ContainerInfo(ContainerInfo containerInfo)
{
_cellBorderWidth = containerInfo.CellBorderWidth;
_maxRows = containerInfo.MaxRows;
_maxColumns = containerInfo.MaxColumns;
_growStyle = containerInfo.GrowStyle;
_container = containerInfo.Container;
_rowStyles = containerInfo.RowStyles;
_colStyles = containerInfo.ColumnStyles;
}
public void TableLayoutSettings_GrowStyle_Set_GetReturnsExpected(TableLayoutPanelGrowStyle value)
{
var toolStrip = new ToolStrip {
LayoutStyle = ToolStripLayoutStyle.Table
};
TableLayoutSettings settings = Assert.IsType <TableLayoutSettings>(toolStrip.LayoutSettings);
settings.GrowStyle = value;
Assert.Equal(value, settings.GrowStyle);
}
public void TableLayoutPanel_GetRowHeights_InvokeNoChildren_ReturnsExpected(TableLayoutPanelGrowStyle growStyle)
{
var panel = new TableLayoutPanel
{
ColumnCount = 3,
RowCount = 2,
GrowStyle = growStyle
};
Assert.Equal(new int[] { 0, 100 }, panel.GetRowHeights());
}
internal TableLayoutSettings(IArrangedContainer panel)
{
this.column_styles = new TableLayoutColumnStyleCollection(panel);
this.row_styles = new TableLayoutRowStyleCollection(panel);
this.grow_style = TableLayoutPanelGrowStyle.AddRows;
this.column_count = 0;
this.row_count = 0;
this.columns = new Dictionary <object, int> ();
this.column_spans = new Dictionary <object, int> ();
this.rows = new Dictionary <object, int> ();
this.row_spans = new Dictionary <object, int> ();
this.panel = panel;
}
internal TableLayoutSettings (TableLayoutPanel panel)
{
this.column_styles = new TableLayoutColumnStyleCollection (panel);
this.row_styles = new TableLayoutRowStyleCollection (panel);
this.grow_style = TableLayoutPanelGrowStyle.AddRows;
this.column_count = 0;
this.row_count = 0;
this.columns = new Dictionary<object, int> ();
this.column_spans = new Dictionary<object, int> ();
this.rows = new Dictionary<object, int> ();
this.row_spans = new Dictionary<object, int> ();
this.panel = panel;
}
private TableLayoutSettings (SerializationInfo serializationInfo, StreamingContext context)
{
TypeConverter converter = TypeDescriptor.GetConverter (this);
string text = serializationInfo.GetString ("SerializedString");
if (!string.IsNullOrEmpty (text) && (converter != null)) {
TableLayoutSettings settings = converter.ConvertFromInvariantString (text) as TableLayoutSettings;
this.column_styles = settings.column_styles;
this.row_styles = settings.row_styles;
this.grow_style = settings.grow_style;
this.column_count = settings.column_count;
this.row_count = settings.row_count;
this.columns = settings.columns;
this.column_spans = settings.column_spans;
this.rows = settings.rows;
this.row_spans = settings.row_spans;
this.panel = settings.panel;
this.isSerialized = true;
}
}
internal TableLayoutSettings(IArrangedContainer panel, TableLayoutSettings settings)
{
this.column_styles = new TableLayoutColumnStyleCollection(panel);
this.row_styles = new TableLayoutRowStyleCollection(panel);
this.grow_style = settings.grow_style;
this.column_count = settings.column_count;
this.row_count = settings.row_count;
this.columns = new Dictionary <object, int> (settings.columns);
this.column_spans = new Dictionary <object, int> (settings.column_spans);
this.rows = new Dictionary <object, int> (settings.rows);
this.row_spans = new Dictionary <object, int> (settings.row_spans);
this.panel = panel;
foreach (ColumnStyle column_style in settings.column_styles)
{
this.column_styles.Add(new ColumnStyle(column_style.SizeType, column_style.Width));
}
foreach (RowStyle row_style in settings.row_styles)
{
this.row_styles.Add(new RowStyle(row_style.SizeType, row_style.Height));
}
}
private TableLayoutSettings(SerializationInfo serializationInfo, StreamingContext context)
{
TypeConverter converter = TypeDescriptor.GetConverter(this);
string text = serializationInfo.GetString("SerializedString");
if (!string.IsNullOrEmpty(text) && (converter != null))
{
TableLayoutSettings settings = converter.ConvertFromInvariantString(text) as TableLayoutSettings;
this.column_styles = settings.column_styles;
this.row_styles = settings.row_styles;
this.grow_style = settings.grow_style;
this.column_count = settings.column_count;
this.row_count = settings.row_count;
this.columns = settings.columns;
this.column_spans = settings.column_spans;
this.rows = settings.rows;
this.row_spans = settings.row_spans;
this.panel = settings.panel;
this.isSerialized = true;
}
}
public ContainerInfo(IArrangedElement container) {
_container = container;
_growStyle = TableLayoutPanelGrowStyle.AddRows;
}
/// <devdoc>
/// xAssignRowsAndColumns: part of AssignRowsAndColumns.
/// def: fixed element: has a specific row/column assignment (assigned by SetRow,SetColumn, or Add(c,row,column)
/// def: flow element: does NOT have a specific row/column assignment.
///
/// Determines the placement of fixed and flow elements. Walks through the rows/columns - if there's a
/// spot for the fixed element, place it, else place the next flow element.
/// </devdoc>
private bool xAssignRowsAndColumns(ContainerInfo containerInfo, LayoutInfo[] childrenInfo, int maxColumns, int maxRows, TableLayoutPanelGrowStyle growStyle) {
Debug.Assert(maxColumns > 0, "maxColumn must be positive");
int numColumns = 0;
int numRows = 0;
ReservationGrid reservationGrid = new ReservationGrid();
int currentRow = 0;
int currentCol = 0;
int fixedElementIndex = -1;
int flowElementIndex = -1;
// make sure to snap these two collections as we're not in a "containerInfo.Valid" state
// so we'll wind up building up the lists over and over again.
LayoutInfo[] fixedChildrenInfo = containerInfo.FixedChildrenInfo;
//the element at the head of the absolutely positioned element queue
LayoutInfo fixedElement = GetNextLayoutInfo(fixedChildrenInfo, ref fixedElementIndex, /*absolutelyPositioned*/true);
//the element at the head of the non-absolutely positioned element queue
LayoutInfo flowElement = GetNextLayoutInfo(childrenInfo, ref flowElementIndex, /*absolutelyPositioned*/false);
while (fixedElement != null || flowElement != null) {
int colStop = currentCol;
int rowStop;
if (flowElement != null) {
flowElement.RowStart = currentRow;
flowElement.ColumnStart = currentCol;
//try to layout the flowElement to see if it overlaps with the fixedElement
AdvanceUntilFits(maxColumns, reservationGrid, flowElement, out colStop);
//we have exceeded the row limit. just return
if (flowElement.RowStart >= maxRows) {
return false;
}
}
//test to see if either the absolutely positioned element is null or it fits.
if (flowElement != null && (fixedElement == null || (!IsCursorPastInsertionPoint(fixedElement, flowElement.RowStart, colStop) && !IsOverlappingWithReservationGrid(fixedElement, reservationGrid, currentRow)))) {
//Place the flow element.
//advance the rows in reservation grid
for (int j = 0; j < flowElement.RowStart - currentRow; j++) {
reservationGrid.AdvanceRow();
}
currentRow = flowElement.RowStart;
rowStop = Math.Min(currentRow + flowElement.RowSpan, maxRows);
//reserve spaces in the reservationGrid
reservationGrid.ReserveAll(flowElement, rowStop, colStop);
flowElement = GetNextLayoutInfo(childrenInfo, ref flowElementIndex, /*absolutelyPositioned*/false);
}
else {
//
//otherwise we place the fixed element.
//
if (currentCol >= maxColumns) {
//we have already passed the boundary. Go to next row
currentCol = 0;
currentRow++;
reservationGrid.AdvanceRow();
}
//set the rowStart and columnStart to fixedElement's specifed position
fixedElement.RowStart = Math.Min(fixedElement.RowPosition, maxRows - 1);
fixedElement.ColumnStart = Math.Min(fixedElement.ColumnPosition, maxColumns - 1);
if (currentRow > fixedElement.RowStart) {
//we have already passed the specifed position. set the start column to the current column
fixedElement.ColumnStart = currentCol;
}
else if (currentRow == fixedElement.RowStart) {
//set the start column to be the max of the specifed column and current column
fixedElement.ColumnStart = Math.Max(fixedElement.ColumnStart, currentCol);
}
else {
//set the start column to the specified column, which we have already done
}
fixedElement.RowStart = Math.Max(fixedElement.RowStart, currentRow);
//advance the reservation grid
int j;
for (j = 0; j < fixedElement.RowStart - currentRow; j++) {
reservationGrid.AdvanceRow();
}
//try to layout the absolutely positioned element as if it were non-absolutely positioned.
//In this way we can tell whether this element overlapps with others or fits on the table.
AdvanceUntilFits(maxColumns, reservationGrid, fixedElement, out colStop);
//we have exceeded the row limit. just return
if (fixedElement.RowStart >= maxRows) {
return false;
}
for (; j < fixedElement.RowStart - currentRow; j++) {
//advance the reservation grid if the fixedElement's row position has changed during layout
reservationGrid.AdvanceRow();
}
currentRow = fixedElement.RowStart;
//make sure that we truncate the element's column span if it is too big
colStop = Math.Min(fixedElement.ColumnStart + fixedElement.ColumnSpan, maxColumns);
rowStop = Math.Min(fixedElement.RowStart + fixedElement.RowSpan, maxRows);
//reserve space in the reservation grid
reservationGrid.ReserveAll(fixedElement, rowStop, colStop);
fixedElement = GetNextLayoutInfo(fixedChildrenInfo, ref fixedElementIndex, /*absolutelyPositioned*/true);
}
currentCol = colStop;
numRows = (numRows == Int32.MaxValue) ? rowStop : Math.Max(numRows, rowStop);
numColumns = (numColumns == Int32.MaxValue) ? colStop : Math.Max(numColumns, colStop);
}
Debug.Assert(numRows <= maxRows, "number of rows allocated shouldn't exceed max number of rows");
Debug.Assert(numColumns <= maxColumns, "number of columns allocated shouldn't exceed max number of columns");
// we should respect columncount and rowcount as according to GrowStyle.
if (growStyle == TableLayoutPanelGrowStyle.FixedSize) {
// now that we've calculated the assignments - use the "max" as the actual number of rows.
numColumns = maxColumns;
numRows = maxRows;
}
else if (growStyle == TableLayoutPanelGrowStyle.AddRows) {
numColumns = maxColumns;
numRows = Math.Max(containerInfo.MaxRows, numRows);
}
else { // add columns
numRows = (maxRows == Int32.MaxValue) ? numRows : maxRows;
numColumns = Math.Max(containerInfo.MaxColumns, numColumns);
}
// PERF: prevent overallocation of Strip[] arrays. We're going to null these guys out
// anyways... so only allocate when the number of rows and columns is different.
if (containerInfo.Rows == null || containerInfo.Rows.Length != numRows) {
containerInfo.Rows = new Strip[numRows];
}
if (containerInfo.Columns == null || containerInfo.Columns.Length != numColumns) {
containerInfo.Columns = new Strip[numColumns];
}
containerInfo.Valid = true;
return true;
}
public void TableLayoutPanel_GetRowHeights_CustomInvalidStyles_ReturnsExpected(TableLayoutPanelGrowStyle growStyle)
{
var panel = new TableLayoutPanel
{
ColumnCount = 3,
RowCount = 2,
GrowStyle = growStyle,
ClientSize = new Size(50, 50)
};
panel.RowStyles.Add(new RowStyle((SizeType)(SizeType.AutoSize - 1), 22));
Assert.Equal(new int[] { 0, 50 }, panel.GetRowHeights());
panel.RowStyles.Add(new RowStyle((SizeType)(SizeType.AutoSize - 1), 22));
Assert.Equal(new int[] { 0, 50 }, panel.GetRowHeights());
panel.RowStyles.Add(new RowStyle((SizeType)(SizeType.AutoSize - 1), 6));
Assert.Equal(new int[] { 0, 50 }, panel.GetRowHeights());
}
public void TableLayoutPanel_GetRowHeights_CustomStylesAbsoluteOverflow_ReturnsExpected(TableLayoutPanelGrowStyle growStyle)
{
var panel = new TableLayoutPanel
{
ColumnCount = 3,
RowCount = 2,
GrowStyle = growStyle,
ClientSize = new Size(70, 80)
};
panel.RowStyles.Add(new RowStyle(SizeType.Absolute, 100));
Assert.Equal(new int[] { 100, 0 }, panel.GetRowHeights());
panel.RowStyles.Add(new RowStyle(SizeType.Absolute, 100));
Assert.Equal(new int[] { 100, 100 }, panel.GetRowHeights());
}
public void TableLayoutPanel_GetRowHeights_CustomPercentStyles_ReturnsExpected(TableLayoutPanelGrowStyle growStyle)
{
var panel = new TableLayoutPanel
{
ColumnCount = 3,
RowCount = 2,
GrowStyle = growStyle,
ClientSize = new Size(70, 80)
};
panel.RowStyles.Add(new RowStyle(SizeType.Percent, 20));
Assert.Equal(new int[] { 80, 0 }, panel.GetRowHeights());
panel.RowStyles.Add(new RowStyle(SizeType.Percent, 30));
Assert.Equal(new int[] { 32, 48 }, panel.GetRowHeights());
panel.RowStyles.Add(new RowStyle(SizeType.Percent, 6));
Assert.Equal(new int[] { 32, 48 }, panel.GetRowHeights());
}
public void TableLayoutPanel_GetRowHeights_CustomAbsoluteStyles_ReturnsExpected(TableLayoutPanelGrowStyle growStyle)
{
var panel = new TableLayoutPanel
{
ColumnCount = 3,
RowCount = 2,
GrowStyle = growStyle
};
panel.RowStyles.Add(new RowStyle(SizeType.Absolute, 10));
Assert.Equal(new int[] { 10, 90 }, panel.GetRowHeights());
panel.RowStyles.Add(new RowStyle(SizeType.Absolute, 5));
Assert.Equal(new int[] { 10, 90 }, panel.GetRowHeights());
panel.RowStyles.Add(new RowStyle(SizeType.Absolute, 6));
Assert.Equal(new int[] { 10, 90 }, panel.GetRowHeights());
}
public ContainerInfo(IArrangedElement container)
{
_container = container;
_growStyle = TableLayoutPanelGrowStyle.AddRows;
}
public void TableLayoutPanel_GetColumnWidths_InvokeNoChildren_ReturnsExpected(TableLayoutPanelGrowStyle growStyle)
{
var control = new Button
{
Visible = true
};
var panel = new TableLayoutPanel
{
ColumnCount = 3,
RowCount = 2,
GrowStyle = growStyle
};
Assert.Equal(new int[] { 0, 0, 200 }, panel.GetColumnWidths());
}
public void TableLayoutPanel_GrowStyle_SetNegative_ThrowsArgumentOutOfRangeException(TableLayoutPanelGrowStyle value)
{
var panel = new TableLayoutPanel();
Assert.Throws <ArgumentOutOfRangeException>("value", () => panel.GrowStyle = value);
}
// </snippet6>
// <snippet7>
private void growStyleNoneBtn_CheckedChanged(
System.Object sender,
System.EventArgs e)
{
this.tlpGrowStyle = TableLayoutPanelGrowStyle.FixedSize;
}
public ContainerInfo(ContainerInfo containerInfo) {
_cellBorderWidth = containerInfo.CellBorderWidth;
_maxRows = containerInfo.MaxRows;
_maxColumns = containerInfo.MaxColumns;
_growStyle = containerInfo.GrowStyle;
_container = containerInfo.Container;
_rowStyles = containerInfo.RowStyles;
_colStyles = containerInfo.ColumnStyles;
}
private void growStyleAddColumnBtn_CheckedChanged(
System.Object sender,
System.EventArgs e)
{
this.tlpGrowStyle = TableLayoutPanelGrowStyle.AddColumns;
}
public void TableLayoutSettings_GrowStyle_SetNegative_ThrowsArgumentOutOfRangeException(TableLayoutPanelGrowStyle value)
{
var toolStrip = new ToolStrip {
LayoutStyle = ToolStripLayoutStyle.Table
};
TableLayoutSettings settings = Assert.IsType <TableLayoutSettings>(toolStrip.LayoutSettings);
Assert.Throws <ArgumentOutOfRangeException>("value", () => settings.GrowStyle = value);
}
internal Control[,] CalculateControlPositions(TableLayoutPanel panel, int columns, int rows)
{
Control[,] grid = new Control[columns, rows];
TableLayoutSettings settings = panel.LayoutSettings;
// First place all controls that have an explicit col/row
foreach (Control c in panel.Controls)
{
int col = settings.GetColumn(c);
int row = settings.GetRow(c);
if (col >= 0 && row >= 0)
{
if (col >= columns)
{
return(CalculateControlPositions(panel, col + 1, rows));
}
if (row >= rows)
{
return(CalculateControlPositions(panel, columns, row + 1));
}
if (grid[col, row] == null)
{
int col_span = Math.Min(settings.GetColumnSpan(c), columns);
int row_span = Math.Min(settings.GetRowSpan(c), rows);
if (col + col_span > columns)
{
if (row + 1 < rows)
{
grid[col, row] = dummy_control;
row++;
col = 0;
}
else if (settings.GrowStyle == TableLayoutPanelGrowStyle.AddColumns)
{
return(CalculateControlPositions(panel, columns + 1, rows));
}
else
{
throw new ArgumentException();
}
}
if (row + row_span > rows)
{
if (settings.GrowStyle == TableLayoutPanelGrowStyle.AddRows)
{
return(CalculateControlPositions(panel, columns, rows + 1));
}
else
{
throw new ArgumentException();
}
}
grid[col, row] = c;
// Fill in the rest of this control's row/column extent with dummy
// controls, so that other controls don't get put there.
for (int i = 0; i < col_span; i++)
{
for (int j = 0; j < row_span; j++)
{
if (i != 0 || j != 0)
{
grid[col + i, row + j] = dummy_control;
}
}
}
}
}
}
int x_pointer = 0;
int y_pointer = 0;
// Fill in gaps with controls that do not have an explicit col/row
foreach (Control c in panel.Controls)
{
int col = settings.GetColumn(c);
int row = settings.GetRow(c);
if ((col >= 0 && col < columns) && (row >= 0 && row < rows) && (grid[col, row] == c || grid[col, row] == dummy_control))
{
continue;
}
for (int y = y_pointer; y < rows; y++)
{
y_pointer = y;
x_pointer = 0;
for (int x = x_pointer; x < columns; x++)
{
x_pointer = x;
if (grid[x, y] == null)
{
int col_span = Math.Min(settings.GetColumnSpan(c), columns);
int row_span = Math.Min(settings.GetRowSpan(c), rows);
if (x + col_span > columns)
{
if (y + 1 < rows)
{
break;
}
else if (settings.GrowStyle == TableLayoutPanelGrowStyle.AddColumns)
{
return(CalculateControlPositions(panel, columns + 1, rows));
}
else
{
throw new ArgumentException();
}
}
if (y + row_span > rows)
{
if (x + 1 < columns)
{
break;
}
else if (settings.GrowStyle == TableLayoutPanelGrowStyle.AddRows)
{
return(CalculateControlPositions(panel, columns, rows + 1));
}
else
{
throw new ArgumentException();
}
}
grid[x, y] = c;
// Fill in the rest of this control's row/column extent with dummy
// controls, so that other controls don't get put there.
for (int i = 0; i < col_span; i++)
{
for (int j = 0; j < row_span; j++)
{
if (i != 0 || j != 0)
{
grid[x + i, y + j] = dummy_control;
}
}
}
// I know someone will kill me for using a goto, but
// sometimes they really are the easiest way...
goto Found;
}
else
{
// MS adds the controls only to the first row if
// GrowStyle is AddColumns and RowCount is 0,
// so interrupt the search for a free horizontal cell
// beyond the first one in the given vertical
if (settings.GrowStyle == TableLayoutPanelGrowStyle.AddColumns &&
settings.RowCount == 0)
{
break;
}
}
}
}
// MS adds rows instead of columns even when GrowStyle is AddColumns,
// but RowCount is 0.
TableLayoutPanelGrowStyle adjustedGrowStyle = settings.GrowStyle;
if (settings.GrowStyle == TableLayoutPanelGrowStyle.AddColumns)
{
if (settings.RowCount == 0)
{
adjustedGrowStyle = TableLayoutPanelGrowStyle.AddRows;
}
}
switch (adjustedGrowStyle)
{
case TableLayoutPanelGrowStyle.AddColumns:
return(CalculateControlPositions(panel, columns + 1, rows));
case TableLayoutPanelGrowStyle.AddRows:
default:
return(CalculateControlPositions(panel, columns, rows + 1));
case TableLayoutPanelGrowStyle.FixedSize:
throw new ArgumentException();
}
Found :;
}
return(grid);
}
