/// <summary>
/// Renders a MenuItem.
/// </summary>
protected virtual void RenderItem(MenuDropDown control, MenuItem item, PaintEventArgs e)
{
// Background
var background_color = item.Hovered || item.IsDropDownOpened ? Theme.ItemHighlightColor : Theme.LightTextColor;
e.Canvas.FillRectangle(item.Bounds, background_color);
// Image
if (item.Image != null)
{
var image_size = e.LogicalToDeviceUnits(16);
var image_bounds = DrawingExtensions.CenterSquare(item.Bounds, image_size);
var image_rect = new Rectangle(item.Bounds.Left + e.LogicalToDeviceUnits(6), image_bounds.Top, image_size, image_size);
e.Canvas.DrawBitmap(item.Image, image_rect, !item.Enabled);
}
// Text
var font_color = item.Enabled ? Theme.PrimaryTextColor : Theme.DisabledTextColor;
var font_size = e.LogicalToDeviceUnits(Theme.FontSize);
var bounds = item.Bounds;
bounds.X += e.LogicalToDeviceUnits(28);
e.Canvas.DrawText(item.Text, Theme.UIFont, font_size, bounds, font_color, ContentAlignment.MiddleLeft);
// Dropdown Arrow
if (item.HasItems)
{
var arrow_bounds = DrawingExtensions.CenterSquare(item.Bounds, 16);
var arrow_area = new Rectangle(item.Bounds.Right - e.LogicalToDeviceUnits(16) - 4, arrow_bounds.Top, 16, 16);
ControlPaint.DrawArrowGlyph(e, arrow_area, font_color, ArrowDirection.Right);
}
}
/// <summary>
/// Renders a MenuItem.
/// </summary>
protected virtual void RenderItem(Ribbon control, RibbonTabPage tabPage, RibbonItemGroup group, MenuItem item, PaintEventArgs e)
{
var canvas = e.Canvas;
var padding = e.LogicalToDeviceUnits(item.Padding);
var background_color = item.Selected ? Theme.ItemSelectedColor : item.Hovered ? Theme.ItemHighlightColor : Theme.NeutralGray;
canvas.FillRectangle(item.Bounds, background_color);
var image_area_bounds = new Rectangle(item.Bounds.Left + padding.Left, item.Bounds.Top + padding.Top, item.Bounds.Width - padding.Horizontal, e.LogicalToDeviceUnits(MINIMUM_ITEM_SIZE));
var final_image_bounds = DrawingExtensions.CenterSquare(image_area_bounds, e.LogicalToDeviceUnits(IMAGE_SIZE));
if (item.Image != null)
{
canvas.DrawBitmap(item.Image, final_image_bounds, !item.Enabled);
}
if (!string.IsNullOrWhiteSpace(item.Text))
{
var font_size = e.LogicalToDeviceUnits(Theme.ItemFontSize);
canvas.Save();
canvas.Clip(item.Bounds);
var text_bounds = new Rectangle(item.Bounds.Left, image_area_bounds.Bottom, item.Bounds.Width, item.Bounds.Bottom - image_area_bounds.Bottom);
canvas.DrawText(item.Text, Theme.UIFont, font_size, text_bounds, item.Enabled ? Theme.PrimaryTextColor : Theme.DisabledTextColor, ContentAlignment.MiddleCenter);
canvas.Restore();
}
}
/// <inheritdoc/>
protected override void Render(CheckBox control, PaintEventArgs e)
{
var box_size = e.LogicalToDeviceUnits(GLYPH_SIZE);
var glyph_padding = e.LogicalToDeviceUnits(GLYPH_TEXT_PADDING);
// Draw the checkbox glyph
var y = (control.ScaledHeight - box_size) / 2;
var box_bounds = new Rectangle(e.LogicalToDeviceUnits(3), y, box_size, box_size);
ControlPaint.DrawCheckBox(e, box_bounds, control.CheckState, !control.Enabled);
var text_bounds = new Rectangle(box_bounds.Right + glyph_padding, 0, control.ScaledWidth - box_bounds.Right - glyph_padding, control.ScaledHeight);
// Draw the focus rectangle
if (control.Selected && control.ShowFocusCues)
{
var focus_bounds = new Rectangle(box_bounds.Right, 0, text_bounds.Width + glyph_padding, text_bounds.Height);
e.Canvas.DrawFocusRectangle(focus_bounds, e.LogicalToDeviceUnits(3));
}
// Draw the text
if (control.Text.HasValue())
{
e.Canvas.DrawText(control.Text, text_bounds, control, ContentAlignment.MiddleLeft);
}
}
/// <summary>
/// Renders a TabStripItem.
/// </summary>
protected virtual void RenderItem(TabStrip control, TabStripItem item, PaintEventArgs e)
{
if (item.Selected)
{
e.Canvas.FillRectangle(item.Bounds, Theme.NeutralGray);
}
else if (item.Hovered && item.Enabled)
{
e.Canvas.FillRectangle(item.Bounds, Theme.HighlightColor);
}
// Draw focus rectangle
if (control.Selected && control.ShowFocusCues && control.Tabs.FocusedIndex == control.Tabs.IndexOf(item))
{
e.Canvas.DrawFocusRectangle(item.Bounds, e.LogicalToDeviceUnits(1));
}
var font_color = !item.Enabled ? Theme.DisabledTextColor:
item.Selected ? Theme.PrimaryColor
: Theme.LightTextColor;
var font_size = e.LogicalToDeviceUnits(Theme.FontSize);
e.Canvas.DrawText(item.Text, Theme.UIFont, font_size, item.Bounds, font_color, ContentAlignment.MiddleCenter);
}
/// <summary>
/// Renders a ListViewItem.
/// </summary>
protected virtual void RenderItem(ListView control, ListViewItem item, PaintEventArgs e)
{
if (item.Selected)
{
e.Canvas.FillRectangle(item.Bounds, Theme.ItemHighlightColor);
}
var image_size = e.LogicalToDeviceUnits(32);
var image_area = new Rectangle(item.Bounds.Left, item.Bounds.Top, item.Bounds.Width, item.Bounds.Width);
var image_bounds = DrawingExtensions.CenterSquare(image_area, image_size);
image_bounds.Y = item.Bounds.Top + e.LogicalToDeviceUnits(3);
if (item.Image != null)
{
e.Canvas.DrawBitmap(item.Image, image_bounds);
}
if (!string.IsNullOrWhiteSpace(item.Text))
{
var font_size = e.LogicalToDeviceUnits(Theme.ItemFontSize);
e.Canvas.Save();
e.Canvas.Clip(item.Bounds);
var text_bounds = new Rectangle(item.Bounds.Left, image_bounds.Bottom + e.LogicalToDeviceUnits(3), item.Bounds.Width, item.Bounds.Bottom - image_bounds.Bottom - e.LogicalToDeviceUnits(3));
e.Canvas.DrawText(item.Text, Theme.UIFont, font_size, text_bounds, Theme.PrimaryTextColor, ContentAlignment.MiddleCenter);
e.Canvas.Restore();
}
}
/// <summary>
/// Renders a MenuSeparatorItem.
/// </summary>
protected virtual void RenderMenuSeparatorItem(Ribbon control, RibbonTabPage tabPage, RibbonItemGroup group, MenuSeparatorItem item, PaintEventArgs e)
{
// Background
e.Canvas.FillRectangle(item.Bounds, Theme.NeutralGray);
var center = item.Bounds.GetCenter();
var thickness = e.LogicalToDeviceUnits(1);
var padding = e.LogicalToDeviceUnits(item.Padding);
e.Canvas.DrawLine(center.X, item.Bounds.Y + padding.Top, center.X, item.Bounds.Bottom - padding.Bottom, item.Enabled ? Theme.ItemHighlightColor : Theme.DisabledTextColor, thickness);
}
/// <summary>
/// Renders a MenuSeparatorItem.
/// </summary>
protected virtual void RenderMenuSeparatorItem(MenuDropDown control, MenuSeparatorItem item, PaintEventArgs e)
{
// Background
e.Canvas.FillRectangle(item.Bounds, Theme.LightTextColor);
var center = item.Bounds.GetCenter();
var thickness = e.LogicalToDeviceUnits(1);
var padding = e.LogicalToDeviceUnits(item.Padding);
e.Canvas.DrawLine(item.Bounds.X + padding.Top, center.Y, item.Bounds.Right - padding.Right, center.Y, item.Enabled ? Theme.ItemHighlightColor : Theme.DisabledTextColor, thickness);
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
if (IsHovering)
{
e.Canvas.Clear(glyph == TitleBarButtonGlyph.Close ? Theme.FormCloseHighlightColor : Theme.HighlightColor);
}
var glyph_bounds = glyph == TitleBarButtonGlyph.Minimize ?
DrawingExtensions.CenterRectangle(DisplayRectangle, e.LogicalToDeviceUnits(new Size(BUTTON_PADDING, 1))) :
DrawingExtensions.CenterSquare(DisplayRectangle, e.LogicalToDeviceUnits(BUTTON_PADDING));
switch (glyph)
{
case TitleBarButtonGlyph.Close:
ControlPaint.DrawCloseGlyph(e, glyph_bounds);
break;
case TitleBarButtonGlyph.Minimize:
ControlPaint.DrawMinimizeGlyph(e, glyph_bounds);
break;
case TitleBarButtonGlyph.Maximize:
ControlPaint.DrawMaximizeGlyph(e, glyph_bounds);
break;
}
}
/// <summary>
/// Gets the bounding box of the area to draw the ComboBox text.
/// </summary>
protected Rectangle GetTextArea(ComboBox control, PaintEventArgs e)
{
var area = control.PaddedClientRectangle;
area.Width -= e.LogicalToDeviceUnits(GLYPH_SIZE);
return(area);
}
/// <inheritdoc/>
protected override void Render(Button control, PaintEventArgs e)
{
if (control.Selected && control.ShowFocusCues)
{
e.Canvas.DrawFocusRectangle(control.ClientRectangle, e.LogicalToDeviceUnits(3));
}
e.Canvas.DrawText(control.Text, control.PaddedClientRectangle, control, control.TextAlign);
}
/// <inheritdoc/>
protected override void Render(FormTitleBar control, PaintEventArgs e)
{
// Form icon
if (control.Image != null)
{
var icon_glyph_bounds = DrawingExtensions.CenterSquare(GetIconBounds(control), e.LogicalToDeviceUnits(FORM_ICON_SIZE));
e.Canvas.DrawBitmap(control.Image, icon_glyph_bounds);
}
// Form text
e.Canvas.DrawText(control.Text.Trim(), Theme.UIFont, e.LogicalToDeviceUnits(Theme.FontSize), GetTitleBounds(control), Theme.LightTextColor, ContentAlignment.MiddleCenter);
// Minimize button
if (control.AllowMinimize)
{
var minimize_button_bounds = GetMinimizeButtonBounds(control);
if (control.HoverElement == FormTitleBar.FormTitleBarElement.Minimize)
{
e.Canvas.FillRectangle(minimize_button_bounds, Theme.HighlightColor);
}
var min_glyph_bounds = DrawingExtensions.CenterRectangle(minimize_button_bounds, e.LogicalToDeviceUnits(new Size(BUTTON_PADDING, 1)));
ControlPaint.DrawMinimizeGlyph(e, min_glyph_bounds);
}
// Maximize button
if (control.AllowMaximize)
{
var maximize_button_bounds = GetMaximizeButtonBounds(control);
if (control.HoverElement == FormTitleBar.FormTitleBarElement.Maximize)
{
e.Canvas.FillRectangle(maximize_button_bounds, Theme.HighlightColor);
}
var max_glyph_bounds = DrawingExtensions.CenterSquare(maximize_button_bounds, e.LogicalToDeviceUnits(BUTTON_PADDING));
ControlPaint.DrawMaximizeGlyph(e, max_glyph_bounds);
}
// Close button
var close_button_bounds = GetCloseButtonBounds(control);
if (control.HoverElement == FormTitleBar.FormTitleBarElement.Close)
{
e.Canvas.FillRectangle(close_button_bounds, Theme.FormCloseHighlightColor);
}
var close_glyph_bounds = DrawingExtensions.CenterSquare(close_button_bounds, e.LogicalToDeviceUnits(BUTTON_PADDING));
ControlPaint.DrawCloseGlyph(e, close_glyph_bounds);
}
/// <summary>
/// Gets the bounds of the item image.
/// </summary>
protected virtual Rectangle GetImageBounds(TreeView control, TreeViewItem item, PaintEventArgs e)
{
if (!control.ShowItemImages || item.Image is null)
{
return(Rectangle.Empty);
}
var left_index = control.ShowDropdownGlyph ? GetGlyphBounds(control, item).Right : GetIndentStart(control, item);
var image_area = new Rectangle(left_index, item.Bounds.Top, item.Bounds.Height, item.Bounds.Height);
return(DrawingExtensions.CenterSquare(image_area, e.LogicalToDeviceUnits(IMAGE_SIZE)));
}
/// <inheritdoc/>
protected override void Render(RadioButton control, PaintEventArgs e)
{
var x = e.LogicalToDeviceUnits(11);
var y = control.ScaledHeight / 2;
ControlPaint.DrawRadioButton(e, new Point(x, y), control.Checked ? CheckState.Checked : CheckState.Unchecked, !control.Enabled);
var text_bounds = control.ClientRectangle;
var unit_24 = e.LogicalToDeviceUnits(24);
var unit_5 = e.LogicalToDeviceUnits(5);
text_bounds.X += unit_24;
text_bounds.Width -= unit_24;
if (control.Selected && control.ShowFocusCues)
{
var focus_bounds = new Rectangle(text_bounds.X - unit_5, 0, text_bounds.Width + unit_5, text_bounds.Height);
e.Canvas.DrawFocusRectangle(focus_bounds, e.LogicalToDeviceUnits(3));
}
e.Canvas.DrawText(control.Text, text_bounds, control, ContentAlignment.MiddleLeft);
}
/// <summary>
/// Renders a MenuItem.
/// </summary>
protected virtual void RenderItem(Menu control, MenuItem item, PaintEventArgs e)
{
// Background
var background_color = item.Hovered || item.IsDropDownOpened ? Theme.ItemHighlightColor : Theme.NeutralGray;
e.Canvas.FillRectangle(item.Bounds, background_color);
// Text
var font_color = item.Enabled ? Theme.PrimaryTextColor : Theme.DisabledTextColor;
var font_size = e.LogicalToDeviceUnits(Theme.FontSize);
e.Canvas.DrawText(item.Text, Theme.UIFont, font_size, item.Bounds, font_color, ContentAlignment.MiddleCenter);
}
/// <summary>
/// Renders a TreeViewItem.
/// </summary>
protected virtual void RenderItem(TreeView control, TreeViewItem item, PaintEventArgs e)
{
var is_selected = item == control.SelectedItem;
var background_color = is_selected ? Theme.ItemHighlightColor : Theme.LightNeutralGray;
var foreground_color = control.Enabled ? Theme.PrimaryTextColor : Theme.DisabledTextColor;
e.Canvas.FillRectangle(item.Bounds, background_color);
if (is_selected && control.Focused && control.ShowFocusCues)
{
e.Canvas.DrawFocusRectangle(item.Bounds, e.LogicalToDeviceUnits(1));
}
if (control.ShowDropdownGlyph == true)
{
var glyph_bounds = GetGlyphBounds(control, item);
if (GetShouldDrawDropdownGlyph(control, item))
{
ControlPaint.DrawArrowGlyph(e, glyph_bounds, foreground_color, item.Expanded ? ArrowDirection.Down : ArrowDirection.Right);
}
}
if (control.ShowItemImages == true && item.Image != null)
{
var image_bounds = GetImageBounds(control, item, e);
e.Canvas.DrawBitmap(item.Image !, image_bounds, !control.Enabled);
}
if (string.IsNullOrWhiteSpace(item.Text))
{
return;
}
var text_bounds = GetTextBounds(control, item, e);
e.Canvas.DrawText(item.Text.Trim(), Theme.UIFont, e.LogicalToDeviceUnits(Theme.FontSize), text_bounds, foreground_color, ContentAlignment.MiddleLeft, maxLines: 1);
}
/// <summary>
/// Gets the bounds of the item text.
/// </summary>
protected virtual Rectangle GetTextBounds(TreeView control, TreeViewItem item, PaintEventArgs e)
{
var show_glyph = control.ShowDropdownGlyph;
var show_image = control.ShowItemImages;
if (!show_glyph && !show_image)
{
return(new Rectangle(GetIndentStart(control, item), item.Bounds.Top, item.Bounds.Width - GetIndentStart(control, item), item.Bounds.Height));
}
// One of these will be valid because we handled the other case above
var padding = e.LogicalToDeviceUnits(6);
var used_bounds = show_image ? GetImageBounds(control, item, e) : GetGlyphBounds(control, item);
return(new Rectangle(used_bounds.Right + padding, item.Bounds.Top, item.Bounds.Right - used_bounds.Right - padding, item.Bounds.Height));
}
/// <inheritdoc/>
protected override void Render(ComboBox control, PaintEventArgs e)
{
var text_area = GetTextArea(control, e);
var unit_3 = e.LogicalToDeviceUnits(3);
if (control.Selected && control.ShowFocusCues)
{
var focus_bounds = new Rectangle(text_area.Left - unit_3, text_area.Top, text_area.Width + unit_3, text_area.Height);
e.Canvas.DrawFocusRectangle(focus_bounds, unit_3);
}
// Draw the text of the selected item
if (control.Items.SelectedItem != null)
{
e.Canvas.DrawText(control.Items.SelectedItem.ToString() !, text_area, control, ContentAlignment.MiddleLeft, maxLines: 1);
}
// Draw the drop down glyph
var button_bounds = GetDropDownButtonArea(control, e);
ControlPaint.DrawArrowGlyph(e, button_bounds, control.Enabled ? Theme.PrimaryTextColor : Theme.DisabledTextColor, ArrowDirection.Down);
}
protected override void Render(MyCustomRenderedButton control, PaintEventArgs e)
{
e.Canvas.FillCircle(control.ScaledWidth / 2, control.ScaledHeight / 2, e.LogicalToDeviceUnits(10), SKColors.Red);
}
/// <inheritdoc/>
protected override void Render(FormTitleBar control, PaintEventArgs e)
{
// Form text
e.Canvas.DrawText(control.Text.Trim(), Theme.UIFont, e.LogicalToDeviceUnits(Theme.FontSize), control.Bounds, Theme.LightTextColor, ContentAlignment.MiddleCenter);
}
/// <summary>
/// Gets the bounding box of the area to draw the drop down glyph.
/// </summary>
protected Rectangle GetDropDownButtonArea(ComboBox control, PaintEventArgs e)
{
var glyph_size = e.LogicalToDeviceUnits(GLYPH_SIZE);
return(new Rectangle(control.ScaledWidth - glyph_size, 0, glyph_size - e.LogicalToDeviceUnits(control.Padding.Right), control.ScaledHeight));
}
