private static void RenderColumnNormalBackground(ItemPaintEventArgs paintEventArgs)
{
var graphics = paintEventArgs.Graphics;
var rect = paintEventArgs.Bounds;
var c1 = Color.FromArgb(223, 234, 247);
var c2 = Color.FromArgb(255, 255, 255);
var rc = new Rectangle(rect.Right - 1, 0, 1, rect.Height);
using (var brush = new LinearGradientBrush(
rc, c1, c2, LinearGradientMode.Vertical))
{
graphics.FillRectangle(brush, rc);
}
}
private static void RenderColumnHoverBackground(CustomListBoxColumn column, ItemPaintEventArgs paintEventArgs)
{
var graphics = paintEventArgs.Graphics;
var rect = paintEventArgs.Bounds;
var c1 = Color.FromArgb(227, 232, 238);
var c2 = Color.FromArgb(241, 245, 251);
using (var p = new Pen(c1))
{
var rc = rect;
rc.Y -= 1;
rc.Width -= 1;
graphics.DrawRectangle(p, rc);
}
using (var b = new SolidBrush(c2))
{
var rc = rect;
rc.X += 2;
rc.Y += 1;
rc.Width -= 4;
rc.Height -= 3;
graphics.FillRectangle(b, rc);
}
if (column.Extender != null)
{
if (rect.Width > CustomListBoxColumn.ExtenderButtonWidth)
{
if (paintEventArgs.HoveredPart == ColumnHitTestResults.Extender)
{
graphics.FillRectangle(ExtenderHoveredBrush,
rect.Right - CustomListBoxColumn.ExtenderButtonWidth + 1.5f, rect.Y + 1.5f,
CustomListBoxColumn.ExtenderButtonWidth - 4, rect.Height - 4);
graphics.DrawRectangle(ExtenderBorderPenHovered,
rect.Right - CustomListBoxColumn.ExtenderButtonWidth, 0,
CustomListBoxColumn.ExtenderButtonWidth - 1, rect.Height - 1);
}
else
{
graphics.FillRectangle(ExtenderBorderBrush,
rect.Right - CustomListBoxColumn.ExtenderButtonWidth - 0.5f, rect.Y,
1, rect.Height);
}
graphics.DrawImage(ImgColumnExtender,
rect.Right - CustomListBoxColumn.ExtenderButtonWidth + 4, rect.Y + 9,
7, 4);
}
}
}
public override void OnPaintColumnBackground(CustomListBoxColumn column, ItemPaintEventArgs paintEventArgs)
{
switch (paintEventArgs.State)
{
case ItemState.None:
RenderColumnNormalBackground(paintEventArgs);
break;
case ItemState.Pressed:
RenderColumnPressedBackground(column, paintEventArgs);
break;
default:
RenderColumnHoverBackground(column, paintEventArgs);
break;
}
}
public override void OnPaintColumnContent(CustomListBoxColumn column, ItemPaintEventArgs paintEventArgs)
{
var graphics = paintEventArgs.Graphics;
var rect = paintEventArgs.Bounds;
var font = column.HeaderFont;
ItemPaintEventArgs.PrepareContentRectangle(ref rect);
paintEventArgs.PrepareTextRectangle(font, font, ref rect);
if (column.Extender != null && ((paintEventArgs.State & (ItemState.Hovered | ItemState.Pressed)) != ItemState.None))
{
rect.Width -= CustomListBoxColumn.ExtenderButtonWidth;
if (rect.Width <= 0)
{
return;
}
}
StringFormat format;
switch (column.HeaderAlignment)
{
case StringAlignment.Near:
format = GitterApplication.TextRenderer.LeftAlign;
break;
case StringAlignment.Far:
format = GitterApplication.TextRenderer.RightAlign;
break;
case StringAlignment.Center:
format = GitterApplication.TextRenderer.CenterAlign;
break;
default:
format = GitterApplication.TextRenderer.LeftAlign;
break;
}
GitterApplication.TextRenderer.DrawText(graphics, column.Name, font, column.HeaderBrush, rect, format);
}
public override void OnPaintItemContent(CustomListBoxItem item, ItemPaintEventArgs paintEventArgs)
{
var graphics = paintEventArgs.Graphics;
var rect = paintEventArgs.Bounds;
#region clip invisible subitems
var clip = paintEventArgs.ClipRectangle;
var clipX1 = clip.X;
var clipX2 = clip.Right;
var columns = item.ListBox.Columns;
int columnsCount = columns.Count;
int x = rect.X;
int firstColumnId;
int startColumnId;
int endColumnId;
int startX;
if (clipX1 <= rect.X && clipX2 >= rect.Right)
{
// all subitems should be painted
startColumnId = 0;
firstColumnId = 0;
endColumnId = columnsCount - 1;
startX = x;
}
else
{
firstColumnId = -1;
startColumnId = -1;
endColumnId = -1;
startX = -1;
// skip clipped subitems
int prev = -1;
for (int i = 0; i < columnsCount; ++i)
{
var column = columns[i];
if (column.IsVisible)
{
if (firstColumnId == -1)
{
firstColumnId = i;
}
int x2 = x + column.Width;
if (startColumnId == -1 && x2 > clipX1)
{
if (prev != -1 && columns[prev].ExtendsToRight)
{
startColumnId = prev;
startX = x - columns[prev].Width;
}
else
{
startColumnId = i;
startX = x;
}
}
if (startColumnId != -1 && endColumnId == -1 && x2 >= clipX2)
{
endColumnId = i++;
for (; i < columnsCount; ++i)
{
if (columns[i].IsVisible)
{
if (columns[i].ExtendsToLeft)
{
endColumnId = i;
}
break;
}
}
break;
}
x = x2;
prev = i;
}
}
// no visible columns found
if (startColumnId == -1)
{
return;
}
if (endColumnId == -1)
{
endColumnId = prev;
}
}
#endregion
x = startX;
bool first = startColumnId == firstColumnId;
var subrect = new Rectangle(0, rect.Y, 0, rect.Height);
int hoveredPart = paintEventArgs.HoveredPart;
for (int i = startColumnId; i <= endColumnId; ++i)
{
var column = columns[i];
if (column.IsVisible)
{
int columnWidth = column.Width;
if (first)
{
first = false;
var level = item.Level;
var listBox = item.ListBox;
int offset = level * ListBoxConstants.LevelMargin + ListBoxConstants.RootMargin;
int w2 = columnWidth - offset;
#region paint plus/minus
if (listBox.ShowTreeLines)
{
if (!listBox.ShowRootTreeLines)
{
if (level != 0)
{
offset -= ListBoxConstants.LevelMargin;
w2 += ListBoxConstants.LevelMargin;
}
}
if (level != 0 || listBox.ShowRootTreeLines)
{
if (w2 > ListBoxConstants.SpaceBeforePlusMinus && item.Items.Count != 0)
{
Bitmap image;
if (hoveredPart == ItemHitTestResults.PlusMinus)
{
image = (item.IsExpanded) ? (ImgCollapseHovered) : (ImgExpandHovered);
}
else
{
image = (item.IsExpanded) ? (ImgCollapse) : (ImgExpand);
}
Rectangle destRect, srcRect;
if (w2 < ListBoxConstants.PlusMinusImageWidth + ListBoxConstants.SpaceBeforePlusMinus)
{
destRect = new Rectangle(
x + offset,
subrect.Y + (subrect.Height - ListBoxConstants.PlusMinusImageWidth) / 2,
w2 - ListBoxConstants.SpaceBeforePlusMinus,
ListBoxConstants.PlusMinusImageWidth);
srcRect = new Rectangle(
0,
0,
w2 - ListBoxConstants.SpaceBeforePlusMinus,
ListBoxConstants.PlusMinusImageWidth);
}
else
{
destRect = new Rectangle(
x + offset,
subrect.Y + (subrect.Height - ListBoxConstants.PlusMinusImageWidth) / 2,
ListBoxConstants.PlusMinusImageWidth,
ListBoxConstants.PlusMinusImageWidth);
srcRect = new Rectangle(
0, 0,
ListBoxConstants.PlusMinusImageWidth,
ListBoxConstants.PlusMinusImageWidth);
}
graphics.DrawImage(image, destRect, srcRect, GraphicsUnit.Pixel);
}
offset += ListBoxConstants.PlusMinusAreaWidth;
w2 -= ListBoxConstants.PlusMinusAreaWidth;
}
}
#endregion
#region paint checkbox
if (listBox.ShowCheckBoxes && item.CheckedState != CheckedState.Unavailable)
{
Bitmap checkedStateImage;
if (hoveredPart == ItemHitTestResults.CheckBox)
{
ImgCheckedStateHovered.TryGetValue(item.CheckedState, out checkedStateImage);
}
else
{
ImgCheckedState.TryGetValue(item.CheckedState, out checkedStateImage);
}
if (checkedStateImage != null && w2 > ListBoxConstants.SpaceBeforeCheckbox)
{
Rectangle destRect, srcRect;
if (w2 < ListBoxConstants.CheckboxImageWidth + ListBoxConstants.SpaceBeforeCheckbox)
{
destRect = new Rectangle(
x + offset + ListBoxConstants.SpaceBeforeCheckbox,
rect.Y + (rect.Height - ListBoxConstants.CheckboxImageWidth) / 2,
w2 - ListBoxConstants.SpaceBeforeCheckbox,
ListBoxConstants.CheckboxImageWidth);
srcRect = new Rectangle(
0, 0,
w2 - ListBoxConstants.SpaceBeforeCheckbox,
ListBoxConstants.CheckboxImageWidth);
}
else
{
destRect = new Rectangle(
x + offset + ListBoxConstants.SpaceBeforeCheckbox,
rect.Y + (rect.Height - ListBoxConstants.CheckboxImageWidth) / 2,
ListBoxConstants.CheckboxImageWidth,
ListBoxConstants.CheckboxImageWidth);
srcRect = new Rectangle(
0, 0,
ListBoxConstants.CheckboxImageWidth,
ListBoxConstants.CheckboxImageWidth);
}
graphics.DrawImage(checkedStateImage, destRect, srcRect, GraphicsUnit.Pixel);
}
offset += ListBoxConstants.CheckBoxAreaWidth;
w2 -= ListBoxConstants.CheckBoxAreaWidth;
}
#endregion
subrect.X = x + offset;
subrect.Width = w2;
x += columnWidth;
if (w2 <= 0)
{
continue;
}
}
else
{
subrect.X = x;
subrect.Width = columnWidth;
x += columnWidth;
}
item.PaintSubItem(new SubItemPaintEventArgs(paintEventArgs.Graphics, clip, subrect, paintEventArgs.Index,
paintEventArgs.State, hoveredPart, paintEventArgs.IsHostControlFocused, i, column));
}
}
}
public override void OnPaintItemBackground(CustomListBoxItem item, ItemPaintEventArgs paintEventArgs)
{
var state = paintEventArgs.State;
if (state == ItemState.None)
{
return;
}
bool hovered = (state & ItemState.Hovered) == ItemState.Hovered;
bool selected = (state & ItemState.Selected) == ItemState.Selected;
bool focused = (state & ItemState.Focused) == ItemState.Focused;
IBackgroundStyle background = null;
if (selected)
{
if (paintEventArgs.IsHostControlFocused)
{
if (hovered)
{
background = BackgroundStyle.SelectedFocused;
}
else if (focused)
{
background = BackgroundStyle.SelectedFocused;
}
else
{
background = BackgroundStyle.Selected;
}
}
else
{
if (hovered)
{
background = BackgroundStyle.SelectedFocused;
}
else
{
background = BackgroundStyle.SelectedNoFocus;
}
}
}
else
{
if (hovered)
{
if (focused && paintEventArgs.IsHostControlFocused)
{
background = BackgroundStyle.HoveredFocused;
}
else
{
background = BackgroundStyle.Hovered;
}
}
else if (focused)
{
if (paintEventArgs.IsHostControlFocused)
{
background = BackgroundStyle.Focused;
}
}
}
if (background != null)
{
background.Draw(paintEventArgs.Graphics, paintEventArgs.Bounds);
}
}
protected override void OnPaintContent(ItemPaintEventArgs paintEventArgs)
{
}
public abstract void OnPaintColumnContent(CustomListBoxColumn column, ItemPaintEventArgs paintEventArgs);
/// <summary>Paints item background.</summary> /// <param name="paintEventArgs">Painting options.</param> protected abstract void OnPaintBackground(ItemPaintEventArgs paintEventArgs);
/// <summary>Draw item.</summary>
/// <param name="paintEventArgs">Paint options.</param>
public void Paint(ItemPaintEventArgs paintEventArgs)
{
OnPaintBackground(paintEventArgs);
OnPaintContent(paintEventArgs);
}
protected override void OnPaintContent(ItemPaintEventArgs paintEventArgs)
{
ListBox.Renderer.OnPaintColumnContent(this, paintEventArgs);
}
protected override void OnPaintBackground(ItemPaintEventArgs paintEventArgs)
{
ListBox.Renderer.OnPaintColumnBackground(this, paintEventArgs);
}
public abstract void OnPaintItemContent(CustomListBoxItem item, ItemPaintEventArgs paintEventArgs);
public abstract void OnPaintItemBackground(CustomListBoxItem item, ItemPaintEventArgs paintEventArgs);
/// <summary>Paints item content.</summary> /// <param name="paintEventArgs">Painting options.</param> protected abstract void OnPaintContent(ItemPaintEventArgs paintEventArgs);
private static void RenderColumnPressedBackground(CustomListBoxColumn column, ItemPaintEventArgs paintEventArgs)
{
var graphics = paintEventArgs.Graphics;
var rect = paintEventArgs.Bounds;
var c1 = Color.FromArgb(192, 203, 217);
var c2 = Color.FromArgb(246, 247, 248);
var c3 = Color.FromArgb(193, 204, 218);
var c4 = Color.FromArgb(215, 222, 231);
var c5 = Color.FromArgb(235, 238, 242);
using (var p = new Pen(c1))
{
var rc = rect;
rc.Y -= 1;
rc.X += 1;
rc.Width -= 2;
graphics.DrawRectangle(p, rc);
}
using (var b = new SolidBrush(c2))
{
var rc = rect;
rc.Y += 3;
rc.X += 2;
rc.Width -= 4;
rc.Height -= 4;
graphics.FillRectangle(b, rc);
}
using (var p = new Pen(c3))
{
var rc = rect;
graphics.DrawLine(p, rc.X + 1, rc.Y + 0, rc.Right - 2, rc.Y + 0);
}
using (var p = new Pen(c4))
{
var rc = rect;
graphics.DrawLine(p, rc.X + 1, rc.Y + 1, rc.Right - 2, rc.Y + 1);
}
using (var p = new Pen(c5))
{
var rc = rect;
graphics.DrawLine(p, rc.X + 1, rc.Y + 2, rc.Right - 2, rc.Y + 2);
}
if (column.Extender != null)
{
if (rect.Width > CustomListBoxColumn.ExtenderButtonWidth)
{
graphics.FillRectangle(ExtenderBorderBrush, rect.Right - CustomListBoxColumn.ExtenderButtonWidth - 0.5f, rect.Y, 1, rect.Height - 1);
graphics.DrawImage(ImgColumnExtender, rect.Right - CustomListBoxColumn.ExtenderButtonWidth + 4, rect.Y + 9, 7, 4);
}
}
}
public abstract void OnPaintColumnBackground(CustomListBoxColumn column, ItemPaintEventArgs paintEventArgs);