protected override void Render(Drawable window, Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, CellRendererState flags)
{
if (isDisposed)
{
return;
}
if (diffMode)
{
if (path.Equals(selctedPath))
{
selectedLine = -1;
selctedPath = null;
}
int w, maxy;
window.GetSize(out w, out maxy);
if (DrawLeft)
{
cell_area.Width += cell_area.X - leftSpace;
cell_area.X = leftSpace;
}
var treeview = widget as FileTreeView;
var p = treeview != null? treeview.CursorLocation : null;
cell_area.Width -= RightPadding;
window.DrawRectangle(widget.Style.BaseGC(Gtk.StateType.Normal), true, cell_area.X, cell_area.Y, cell_area.Width - 1, cell_area.Height);
Gdk.GC normalGC = widget.Style.TextGC(StateType.Normal);
Gdk.GC removedGC = new Gdk.GC(window);
removedGC.Copy(normalGC);
removedGC.RgbFgColor = Styles.LogView.DiffRemoveBackgroundColor.AddLight(-0.3).ToGdkColor();
Gdk.GC addedGC = new Gdk.GC(window);
addedGC.Copy(normalGC);
addedGC.RgbFgColor = Styles.LogView.DiffAddBackgroundColor.AddLight(-0.3).ToGdkColor();
Gdk.GC infoGC = new Gdk.GC(window);
infoGC.Copy(normalGC);
infoGC.RgbFgColor = widget.Style.Text(StateType.Normal).AddLight(0.2);
Cairo.Context ctx = CairoHelper.Create(window);
// Rendering is done in two steps:
// 1) Get a list of blocks to render
// 2) render the blocks
int y = cell_area.Y + 2;
// cline keeps track of the current source code line (the one to jump to when double clicking)
int cline = 1;
bool inHeader = true;
BlockInfo currentBlock = null;
List <BlockInfo> blocks = new List <BlockInfo> ();
for (int n = 0; n < lines.Length; n++, y += lineHeight)
{
string line = lines [n];
if (line.Length == 0)
{
currentBlock = null;
y -= lineHeight;
continue;
}
char tag = line [0];
if (line.StartsWith("---", StringComparison.Ordinal) ||
line.StartsWith("+++", StringComparison.Ordinal))
{
// Ignore this part of the header.
currentBlock = null;
y -= lineHeight;
continue;
}
if (tag == '@')
{
int l = ParseCurrentLine(line);
if (l != -1)
{
cline = l - 1;
}
inHeader = false;
}
else if (tag == '+' && !inHeader)
{
cline++;
}
BlockType type;
switch (tag)
{
case '-': type = BlockType.Removed; break;
case '+': type = BlockType.Added; break;
case '@': type = BlockType.Info; break;
default: type = BlockType.Unchanged; break;
}
if (currentBlock == null || type != currentBlock.Type)
{
if (y > maxy)
{
break;
}
// Starting a new block. Mark section ends between a change block and a normal code block
if (currentBlock != null && IsChangeBlock(currentBlock.Type) && !IsChangeBlock(type))
{
currentBlock.SectionEnd = true;
}
currentBlock = new BlockInfo()
{
YStart = y,
FirstLine = n,
Type = type,
SourceLineStart = cline,
SectionStart = (blocks.Count == 0 || !IsChangeBlock(blocks[blocks.Count - 1].Type)) && IsChangeBlock(type)
};
blocks.Add(currentBlock);
}
// Include the line in the current block
currentBlock.YEnd = y + lineHeight;
currentBlock.LastLine = n;
}
// Now render the blocks
// The y position of the highlighted line
int selectedLineRowTop = -1;
BlockInfo lastCodeSegmentStart = null;
BlockInfo lastCodeSegmentEnd = null;
foreach (BlockInfo block in blocks)
{
if (block.Type == BlockType.Info)
{
// Finished drawing the content of a code segment. Now draw the segment border and label.
if (lastCodeSegmentStart != null)
{
DrawCodeSegmentBorder(infoGC, ctx, cell_area.X, cell_area.Width, lastCodeSegmentStart, lastCodeSegmentEnd, lines, widget, window);
}
lastCodeSegmentStart = block;
}
lastCodeSegmentEnd = block;
if (block.YEnd < 0)
{
continue;
}
// Draw the block background
DrawBlockBg(ctx, cell_area.X + 1, cell_area.Width - 2, block);
// Get all text for the current block
StringBuilder sb = new StringBuilder();
for (int n = block.FirstLine; n <= block.LastLine; n++)
{
string s = ProcessLine(lines [n]);
if (n > block.FirstLine)
{
sb.Append('\n');
}
if ((block.Type == BlockType.Added || block.Type == BlockType.Removed) && s.Length > 0)
{
sb.Append(' ');
sb.Append(s, 1, s.Length - 1);
}
else
{
sb.Append(s);
}
}
// Draw a special background for the selected line
if (block.Type != BlockType.Info && p.HasValue && p.Value.X >= cell_area.X && p.Value.X <= cell_area.Right && p.Value.Y >= block.YStart && p.Value.Y <= block.YEnd)
{
int row = (p.Value.Y - block.YStart) / lineHeight;
double yrow = block.YStart + lineHeight * row;
double xrow = cell_area.X + LeftPaddingBlock;
int wrow = cell_area.Width - 1 - LeftPaddingBlock;
if (block.Type == BlockType.Added)
{
ctx.SetSourceColor(Styles.LogView.DiffAddBackgroundColor.AddLight(0.1).ToCairoColor());
}
else if (block.Type == BlockType.Removed)
{
ctx.SetSourceColor(Styles.LogView.DiffRemoveBackgroundColor.AddLight(0.1).ToCairoColor());
}
else
{
ctx.SetSourceColor(Styles.LogView.DiffHighlightColor.ToCairoColor());
xrow -= LeftPaddingBlock;
wrow += LeftPaddingBlock;
}
ctx.Rectangle(xrow, yrow, wrow, lineHeight);
ctx.Fill();
selectedLine = block.SourceLineStart + row;
selctedPath = path;
selectedLineRowTop = (int)yrow;
}
// Draw the line text. Ignore header blocks, since they are drawn as labels in DrawCodeSegmentBorder
if (block.Type != BlockType.Info)
{
layout.SetMarkup("");
layout.SetText(sb.ToString());
Gdk.GC gc;
switch (block.Type)
{
case BlockType.Removed: gc = removedGC; break;
case BlockType.Added: gc = addedGC; break;
case BlockType.Info: gc = infoGC; break;
default: gc = normalGC; break;
}
window.DrawLayout(gc, cell_area.X + 2 + LeftPaddingBlock, block.YStart, layout);
}
// Finally draw the change symbol at the left margin
DrawChangeSymbol(ctx, widget, cell_area.X + 1, cell_area.Width - 2, block);
}
// Finish the drawing of the code segment
if (lastCodeSegmentStart != null)
{
DrawCodeSegmentBorder(infoGC, ctx, cell_area.X, cell_area.Width, lastCodeSegmentStart, lastCodeSegmentEnd, lines, widget, window);
}
// Draw the source line number at the current selected line. It must be done at the end because it must
// be drawn over the source code text and segment borders.
if (selectedLineRowTop != -1)
{
DrawLineBox(normalGC, ctx, ((Gtk.TreeView)widget).VisibleRect.Right - 4, selectedLineRowTop, selectedLine, widget, window);
}
((IDisposable)ctx).Dispose();
removedGC.Dispose();
addedGC.Dispose();
infoGC.Dispose();
}
else
{
// Rendering a normal text row
int y = cell_area.Y + (cell_area.Height - height) / 2;
window.DrawLayout(widget.Style.TextGC(GetState(widget, flags)), cell_area.X, y, layout);
}
}
protected override void Render(Drawable window, Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, CellRendererState flags)
{
if (isDisposed || layout == null)
{
return;
}
if (diffMode)
{
if (path.Equals(selctedPath))
{
selectedLine = -1;
selctedPath = null;
}
int w, maxy;
window.GetSize(out w, out maxy);
if (DrawLeft)
{
cell_area.Width += cell_area.X - leftSpace;
cell_area.X = leftSpace;
}
var treeview = widget as FileTreeView;
var p = treeview != null? treeview.CursorLocation : null;
cell_area.Width -= RightPadding;
window.DrawRectangle(widget.Style.BaseGC(Gtk.StateType.Normal), true, cell_area.X, cell_area.Y, cell_area.Width - 1, cell_area.Height);
Gdk.GC normalGC = widget.Style.TextGC(StateType.Normal);
Gdk.GC removedGC = new Gdk.GC(window);
removedGC.Copy(normalGC);
removedGC.RgbFgColor = Styles.LogView.DiffRemoveBackgroundColor.AddLight(-0.3).ToGdkColor();
Gdk.GC addedGC = new Gdk.GC(window);
addedGC.Copy(normalGC);
addedGC.RgbFgColor = Styles.LogView.DiffAddBackgroundColor.AddLight(-0.3).ToGdkColor();
Gdk.GC infoGC = new Gdk.GC(window);
infoGC.Copy(normalGC);
infoGC.RgbFgColor = widget.Style.Text(StateType.Normal).AddLight(0.2);
Cairo.Context ctx = CairoHelper.Create(window);
// Rendering is done in two steps:
// 1) Get a list of blocks to render
// 2) render the blocks
var blocks = CalculateBlocks(maxy, cell_area.Y + 2);
// Now render the blocks
// The y position of the highlighted line
int selectedLineRowTop = -1;
BlockInfo lastCodeSegmentStart = null;
BlockInfo lastCodeSegmentEnd = null;
foreach (BlockInfo block in blocks)
{
if (block.Type == BlockType.Info)
{
// Finished drawing the content of a code segment. Now draw the segment border and label.
if (lastCodeSegmentStart != null)
{
DrawCodeSegmentBorder(infoGC, ctx, cell_area.X, cell_area.Width, lastCodeSegmentStart, lastCodeSegmentEnd, lines, widget, window);
}
lastCodeSegmentStart = block;
}
lastCodeSegmentEnd = block;
if (block.YEnd < 0)
{
continue;
}
// Draw the block background
DrawBlockBg(ctx, cell_area.X + 1, cell_area.Width - 2, block);
// Get all text for the current block
StringBuilder sb = new StringBuilder();
for (int n = block.FirstLine; n <= block.LastLine; n++)
{
string s = ProcessLine(lines [n]);
if (n > block.FirstLine)
{
sb.Append('\n');
}
if ((block.Type == BlockType.Added || block.Type == BlockType.Removed) && s.Length > 0)
{
sb.Append(' ');
sb.Append(s, 1, s.Length - 1);
}
else
{
sb.Append(s);
}
}
// Draw a special background for the selected line
if (block.Type != BlockType.Info && p.HasValue && p.Value.X >= cell_area.X && p.Value.X <= cell_area.Right && p.Value.Y >= block.YStart && p.Value.Y <= block.YEnd)
{
int row = (p.Value.Y - block.YStart) / lineHeight;
double yrow = block.YStart + lineHeight * row;
double xrow = cell_area.X + LeftPaddingBlock;
int wrow = cell_area.Width - 1 - LeftPaddingBlock;
if (block.Type == BlockType.Added)
{
ctx.SetSourceColor(Styles.LogView.DiffAddBackgroundColor.AddLight(0.1).ToCairoColor());
}
else if (block.Type == BlockType.Removed)
{
ctx.SetSourceColor(Styles.LogView.DiffRemoveBackgroundColor.AddLight(0.1).ToCairoColor());
}
else
{
ctx.SetSourceColor(Styles.LogView.DiffHighlightColor.ToCairoColor());
xrow -= LeftPaddingBlock;
wrow += LeftPaddingBlock;
}
ctx.Rectangle(xrow, yrow, wrow, lineHeight);
ctx.Fill();
selectedLine = block.SourceLineStart + row;
selctedPath = path;
selectedLineRowTop = (int)yrow;
}
// Draw the line text. Ignore header blocks, since they are drawn as labels in DrawCodeSegmentBorder
if (block.Type != BlockType.Info)
{
layout.SetMarkup("");
layout.SetText(sb.ToString());
Gdk.GC gc;
switch (block.Type)
{
case BlockType.Removed: gc = removedGC; break;
case BlockType.Added: gc = addedGC; break;
case BlockType.Info: gc = infoGC; break;
default: gc = normalGC; break;
}
window.DrawLayout(gc, cell_area.X + 2 + LeftPaddingBlock, block.YStart, layout);
}
// Finally draw the change symbol at the left margin
DrawChangeSymbol(ctx, widget, cell_area.X + 1, cell_area.Width - 2, block);
}
// Finish the drawing of the code segment
if (lastCodeSegmentStart != null)
{
DrawCodeSegmentBorder(infoGC, ctx, cell_area.X, cell_area.Width, lastCodeSegmentStart, lastCodeSegmentEnd, lines, widget, window);
}
// Draw the source line number at the current selected line. It must be done at the end because it must
// be drawn over the source code text and segment borders.
if (selectedLineRowTop != -1)
{
DrawLineBox(normalGC, ctx, ((Gtk.TreeView)widget).VisibleRect.Right - 4, selectedLineRowTop, selectedLine, widget, window);
}
((IDisposable)ctx).Dispose();
removedGC.Dispose();
addedGC.Dispose();
infoGC.Dispose();
}
else
{
// Rendering a normal text row
int y = cell_area.Y + (cell_area.Height - height) / 2;
window.DrawLayout(widget.Style.TextGC(GetState(widget, flags)), cell_area.X, y, layout);
}
}
private void OnDataRowDeleted(object o, RowDeletedArgs args)
{
if (model == null || args.Path == null)
{
return;
}
bool sel_paths_changed = false;
// Don't update the real n_cells, as doing this will
// throw off ScrollToPath if called before SizeAllocate
// is run
int n_cells = model.IterNChildren();
for (int i = 0; i < selected_paths.Count; i++)
{
TreePath path = (TreePath)selected_paths[i];
int cmp = path.Compare(args.Path);
if (cmp == 0)
{
selected_paths.RemoveAt(i);
i--;
sel_paths_changed = true;
continue;
}
// decrement each path that follows the one we
// just deleted
if (cmp > 0)
{
path.Prev();
selected_paths[i] = path;
continue;
}
}
if (sel_paths_changed && SelectionChanged != null)
{
SelectionChanged(this, new EventArgs());
}
if (focused_path != null &&
focused_path.Equals(args.Path))
{
focused_path = focused_path.Copy();
// try to advance the focus forward
focused_path.Next();
if (!PathIsValid(focused_path, n_cells) &&
!focused_path.Prev())
{
focused_path = null;
}
}
if (selection_anchor != null &&
selection_anchor.Equals(args.Path))
{
selection_anchor = null;
}
QueueResize();
}
protected override void Render(Drawable window, Widget widget, Gdk.Rectangle background_area, Gdk.Rectangle cell_area, Gdk.Rectangle expose_area, CellRendererState flags)
{
if (isDisposed)
{
return;
}
if (diffMode)
{
if (path.Equals(selctedPath))
{
selectedLine = -1;
selctedPath = null;
}
int w, maxy;
window.GetSize(out w, out maxy);
var treeview = widget as FileTreeView;
var p = treeview != null? treeview.CursorLocation : null;
int recty = cell_area.Y;
int recth = cell_area.Height - 1;
if (recty < 0)
{
recth += recty + 1;
recty = -1;
}
if (recth > maxy + 2)
{
recth = maxy + 2;
}
window.DrawRectangle(widget.Style.BaseGC(Gtk.StateType.Normal), true, cell_area.X, recty, cell_area.Width - 1, recth);
Gdk.GC normalGC = widget.Style.TextGC(StateType.Normal);
Gdk.GC removedGC = new Gdk.GC(window);
removedGC.Copy(normalGC);
removedGC.RgbFgColor = new Color(255, 0, 0);
Gdk.GC addedGC = new Gdk.GC(window);
addedGC.Copy(normalGC);
addedGC.RgbFgColor = new Color(0, 0, 255);
Gdk.GC infoGC = new Gdk.GC(window);
infoGC.Copy(normalGC);
infoGC.RgbFgColor = new Color(0xa5, 0x2a, 0x2a);
int y = cell_area.Y + 2;
int cline = 1;
bool inHeader = true;
for (int n = 0; n < lines.Length; n++, y += lineHeight)
{
string line = lines [n];
if (line.Length == 0)
{
continue;
}
char tag = line [0];
// Keep track of the real file line
int thisLine = cline;
if (tag == '@')
{
int l = ParseCurrentLine(line);
if (l != -1)
{
cline = thisLine = l;
}
inHeader = false;
}
else if (tag != '-' && !inHeader)
{
cline++;
}
if (y + lineHeight < 0)
{
continue;
}
if (y > maxy)
{
break;
}
Gdk.GC gc;
switch (tag)
{
case '-': gc = removedGC; break;
case '+': gc = addedGC; break;
case '@': gc = infoGC; break;
default: gc = normalGC; break;
}
if (p.HasValue && p.Value.X >= cell_area.X && p.Value.X <= cell_area.Right && p.Value.Y >= y && p.Value.Y < y + lineHeight)
{
window.DrawRectangle(widget.Style.BaseGC(Gtk.StateType.Prelight), true, cell_area.X, y, cell_area.Width - 1, lineHeight);
selectedLine = thisLine;
selctedPath = path;
}
layout.SetText(line);
window.DrawLayout(gc, cell_area.X + 2, y, layout);
}
window.DrawRectangle(widget.Style.DarkGC(Gtk.StateType.Prelight), false, cell_area.X, recty, cell_area.Width - 1, recth);
removedGC.Dispose();
addedGC.Dispose();
infoGC.Dispose();
}
else
{
int y = cell_area.Y + (cell_area.Height - height) / 2;
window.DrawLayout(widget.Style.TextGC(GetState(flags)), cell_area.X, y, layout);
}
}
