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// BezelGlassResults.cs
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// Copyright (C) 2008 GNOME-Do
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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using System.Collections.Generic;
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using System.Threading;
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using Do.Interface.CairoUtils;
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namespace Do.Interface.AnimationBase
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public class BezelGlassResults : Gtk.DrawingArea
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IBezelResultItemRenderer ItemRenderer;
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const int FadeTime = 100;
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int border_width, top_border_width;
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Dictionary <Element, Surface> surface_buffer;
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Surface highlight_surface, backbuffer, child_inout_surface, triplebuffer, background;
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double scroll_offset, highlight_offset, child_scroll_offset, slide_offset;
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int cursor, prev_cursor, delta;
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uint timer, delta_reset;
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IDoController controller;
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IUIContext context = null;
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IList<Element> results;
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public int X { get; set; }
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int BottomBorderWidth {
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case HUDStyle.Classic:
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throw new NotImplementedException ();
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int SurfaceHeight { get { return ItemRenderer.Height; } }
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private Cairo.Color BackgroundColor
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return colors.BackgroundDark;
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case HUDStyle.Classic:
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using (Gtk.Style rcstyle = Gtk.Rc.GetStyle (this)) {
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bgColor = rcstyle.BaseColors[(int) StateType.Normal];
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return bgColor.ConvertToCairo (1);
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throw new NotImplementedException ();
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public string ItemTextColor {
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case HUDStyle.Classic:
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using (Gtk.Style rcstyle = Gtk.Rc.GetStyle (this)) {
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bgColor = rcstyle.TextColors[(int) StateType.Normal];
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return bgColor.ColorToHexString ();
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throw new NotImplementedException ();
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public string QueryColor {
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case HUDStyle.Classic:
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throw new NotImplementedException ();
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public IList<Element> Results {
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if (results != null && value != null && results.GetHashCode () == value.GetHashCode ())
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highlight_offset = 0;
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int oldStart = StartResult;
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prev_cursor = cursor;
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if (oldStart == StartResult) {
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highlight_offset -= value-prev_cursor;
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scroll_offset += value-prev_cursor;
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private int StartResult {
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int result = Math.Max (Cursor - (num_results / 2), 0);
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while (result+num_results > results.Count && result > 1)
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private bool AnimationNeeded {
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return CursorMoveNeeded || ScrollNeeded || ChildScrollNeeded || SlideNeeded;
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private bool CursorMoveNeeded {
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return highlight_offset != 0;
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private bool ScrollNeeded {
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return scroll_offset != 0;
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private bool ChildScrollNeeded {
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return child_scroll_offset != 0;
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private bool SlideNeeded {
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return (visible && slide_offset != 1 || !visible && slide_offset != 0);
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public IUIContext Context
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IUIContext tmp = context;
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if (value == null || !value.Results.Any ()) {
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if (context.ParentContext != null && tmp != null &&
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context.ParentContext.Query == tmp.Query &&
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tmp.Results.GetHashCode () == context.ParentContext.Results.GetHashCode ()) {
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InitChildInAnimation ();
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} else if (tmp.ParentContext != null && context != null &&
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tmp.ParentContext.Query == context.Query &&
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tmp.ParentContext.Results.GetHashCode () == context.Results.GetHashCode ()) {
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InitChildOutAnimation ();
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Cursor = value.Cursor;
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Results = value.Results;
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Secondary = value.SecondaryCursors;
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private int InternalWidth {
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return width - 2*border_width;
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public int[] Secondary {
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if (secondary.Length == value.Length) {
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for (int i = 0; i<secondary.Length; i++) {
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if (secondary[i] != value[i]) {
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foreach (Surface s in surface_buffer.Values)
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surface_buffer.Clear ();
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public BezelGlassResults(IDoController controller, int width, HUDStyle style, BezelColors colors) : base ()
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this.controller = controller;
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this.colors = colors;
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case HUDStyle.Classic:
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ItemRenderer = new BezelFullResultItemRenderer (this);
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ItemRenderer = new BezelHalfResultItemRenderer (this);
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surface_buffer = new Dictionary <Element,Surface> ();
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secondary = new int[0];
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top_border_width = 20;
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height = num_results * SurfaceHeight + top_border_width + BottomBorderWidth;
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SetSizeRequest (width, height);
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DoubleBuffered = false;
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this.Shown += delegate {
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BezelDrawingArea.ThemeChanged += delegate {
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if (background != null)
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background.Destroy ();
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if (highlight_surface != null)
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highlight_surface.Destroy ();
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if (child_inout_surface != null)
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child_inout_surface.Destroy ();
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if (triplebuffer != null)
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triplebuffer.Destroy ();
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if (backbuffer != null)
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backbuffer.Destroy ();
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highlight_surface = backbuffer = child_inout_surface = triplebuffer = background = null;
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Realized += delegate {
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this.GdkWindow.SetBackPixmap (null, false);
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StyleSet += delegate {
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GdkWindow.SetBackPixmap (null, false);
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private void AnimatedDraw ()
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if (!IsDrawable || timer > 0) return;
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if (!AnimationNeeded)
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delta_time = DateTime.Now;
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timer = GLib.Timeout.Add (1000/100, delegate {
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double change = (BezelDrawingArea.Animated) ? DateTime.Now.Subtract (delta_time).TotalMilliseconds / FadeTime : 10;
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delta_time = DateTime.Now;
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double move = Math.Max (change*delta, change);
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if (scroll_offset > 0)
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scroll_offset = Math.Max (0, scroll_offset - move);
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scroll_offset = Math.Min (0, scroll_offset + move);
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if (CursorMoveNeeded) {
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if (highlight_offset > 0)
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highlight_offset = Math.Max (0, highlight_offset - move);
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highlight_offset = Math.Min (0, highlight_offset + move);
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if (ChildScrollNeeded) {
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if (child_scroll_offset > 0)
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child_scroll_offset = Math.Max (0, child_scroll_offset - change*0.7);
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child_scroll_offset = Math.Min (0, child_scroll_offset + change*0.7);
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slide_offset = Math.Min (1, slide_offset + change*0.7);
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slide_offset = Math.Max (0, slide_offset - change*0.7);
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if (!AnimationNeeded) {
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GLib.Source.Remove (delta_reset);
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delta_reset = GLib.Timeout.Add (50, delegate {
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foreach (Surface s in surface_buffer.Values)
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surface_buffer = new Dictionary<Element,Surface> ();
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private void Paint ()
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if (!IsDrawable) return;
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// DateTime time = DateTime.Now;
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Context cr = Gdk.CairoHelper.Create (GdkWindow);
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if (slide_offset == 0) {
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cr.Operator = Operator.Source;
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cr.Color = new Cairo.Color (0, 0, 0, 0);
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(cr as IDisposable).Dispose ();
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if (backbuffer == null)
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backbuffer = cr.Target.CreateSimilar (cr.Target.Content, width, height);
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DrawContextOnSurface (backbuffer);
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if (child_scroll_offset == 0) {
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cr.SetSource (backbuffer, X, -(height*(1-slide_offset)));
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cr.Operator = Operator.Source;
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if (triplebuffer == null) {
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triplebuffer = cr.Target.CreateSimilar (cr.Target.Content, width, height);
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if (child_scroll_offset > 0) {
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old_x = (int)(-width*(1-child_scroll_offset));
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old_x = (int)(-width*(-1-child_scroll_offset));
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DrawSlideContexts (child_inout_surface, backbuffer, triplebuffer, old_x, new_x);
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cr.SetSource (triplebuffer, X, - (height * (1 - slide_offset)));
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cr.Operator = Operator.Source;
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(cr as IDisposable).Dispose ();
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/// Draws two surfaces offset onto a singel surface. Useful for making left/right slide animations
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/// <param name="old_surface">
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/// A <see cref="Surface"/>
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/// <param name="new_surface">
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/// A <see cref="Surface"/>
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/// <param name="target_surface">
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/// A <see cref="Surface"/>
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/// <param name="old_x">
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/// A <see cref="System.Int32"/>
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/// <param name="new_x">
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/// A <see cref="System.Int32"/>
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private void DrawSlideContexts (Surface old_surface, Surface new_surface, Surface target_surface,
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int old_x, int new_x)
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Context cr = new Context (target_surface);
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cr.Operator = Operator.Source;
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// redraw our top and bottom border separately. This makes the slide only appear to affect
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cr.Rectangle (0, 0, width, top_border_width);
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cr.Rectangle (0, height-BottomBorderWidth, width, BottomBorderWidth);
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cr.SetSource (new_surface, 0, 0);
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cr.Rectangle (0, top_border_width, width, height-top_border_width-BottomBorderWidth);
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cr.SetSource (old_surface, old_x, 0);
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cr.Operator = Operator.Over;
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cr.SetSource (new_surface, new_x, 0);
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(cr as IDisposable).Dispose ();
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/// Draws a header. Currently this relies on being drown on top of the background surface to
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/// <param name="cr">
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/// A <see cref="Context"/>
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/// <param name="radius">
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/// A <see cref="System.Int32"/>
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private void DrawHeaderOnContext (Context cr, int radius)
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cr.MoveTo (0 + radius, 0);
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cr.Arc (0 + width - radius, 0 + radius, radius, Math.PI*1.5, Math.PI*2);
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cr.LineTo (0 + width, 0 + top_border_width);
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cr.LineTo (0, 0 + top_border_width);
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cr.Arc (0 + radius, 0 + radius, radius, Math.PI, Math.PI*1.5);
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LinearGradient title_grad = new LinearGradient (0, 0, 0, top_border_width);
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title_grad.AddColorStop (0.0, colors.TitleBarGlossLight);
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title_grad.AddColorStop (0.5, colors.TitleBarGlossDark);
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title_grad.AddColorStop (0.5, colors.TitleBarBase);
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cr.Pattern = title_grad;
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title_grad.Destroy ();
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case HUDStyle.Classic:
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cr.Rectangle (0.5, -0.5, width-1, top_border_width);
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LinearGradient title_grad1 = new LinearGradient (0, 0, 0, top_border_width);
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title_grad1.AddColorStop (0, new Cairo.Color (0.75, 0.75, 0.75));
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title_grad1.AddColorStop (1, new Cairo.Color (0.95, 0.95, 0.95));
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cr.Pattern = title_grad1;
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title_grad1.Destroy ();
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cr.Color = new Cairo.Color (0.3, 0.3, 0.3, 0.5);
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/// Draws a footer. Currently this relies on being drawn on top of the background surface to
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/// <param name="cr">
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/// A <see cref="Context"/>
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/// <param name="radius">
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/// A <see cref="System.Int32"/>
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private void DrawFooterOnContext (Context cr, int radius)
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cr.MoveTo (.5, height-BottomBorderWidth+.5);
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cr.LineTo (width-1, height-BottomBorderWidth+.5);
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cr.Arc (width-radius-.5, height-radius-.5, radius, 0, Math.PI*.5);
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cr.Arc (radius+.5, height-radius-.5, radius, Math.PI*.5, Math.PI);
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cr.Color = colors.TitleBarBase;
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cr.Color = new Cairo.Color (.6, .6, .6, .4);
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case HUDStyle.Classic:
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cr.Rectangle (0.5, height-BottomBorderWidth+.5, width-1, BottomBorderWidth-1);
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LinearGradient title_grad1 = new LinearGradient (0, height-BottomBorderWidth, 0, height);
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title_grad1.AddColorStop (0, new Cairo.Color (0.75, 0.75, 0.75));
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title_grad1.AddColorStop (1, new Cairo.Color (0.95, 0.95, 0.95));
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cr.Pattern = title_grad1;
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title_grad1.Destroy ();
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cr.Color = new Cairo.Color (0.3, 0.3, 0.3, 0.5);
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/// Draws the background theme on the passed context
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/// <param name="cr">
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/// A <see cref="Context"/>
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private void DrawBackgroundOnContext (Context cr)
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cr.Operator = Operator.Source;
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cr.Rectangle (0, 0, width, height);
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cr.Color = new Cairo.Color (0, 0, 0, 0);
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cr.Operator = Operator.Over;
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int c_size = border_width - 2;
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//Draw rounded rectange around whole border
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cr.MoveTo (0.5+c_size, -1);
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cr.Arc (width-c_size-0.5, c_size-1, c_size, Math.PI*1.5, Math.PI*2);
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cr.Arc (width-0.5-c_size, height-c_size-0.5, c_size, 0, Math.PI*.5);
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cr.Arc (0.5+c_size, height-c_size-0.5, c_size, Math.PI*.5, Math.PI);
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cr.Arc (0.5+c_size, c_size-1, c_size, Math.PI, Math.PI*1.5);
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cr.Color = BackgroundColor;
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cr.Color = colors.BackgroundLight;
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case HUDStyle.Classic:
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cr.Rectangle (0.5, 0, width-1, height);
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cr.Color = BackgroundColor;
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cr.Color = new Cairo.Color (.3, .3, .3, .5);
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DrawHeaderOnContext (cr, c_size);
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cr.Rectangle (border_width, top_border_width, InternalWidth, height-top_border_width);
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cr.Color = new Cairo.Color (.9, .9, .9, .05);
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DrawFooterOnContext (cr, c_size);
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cr.MoveTo (border_width + .5, top_border_width);
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cr.LineTo (border_width + .5, height-BottomBorderWidth);
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cr.MoveTo (width - border_width - .5, top_border_width);
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cr.LineTo (width - border_width - .5, height-BottomBorderWidth);
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if (style != HUDStyle.Classic) {
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cr.MoveTo (0, height-BottomBorderWidth-.5);
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cr.LineTo (width, height-BottomBorderWidth-.5);
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cr.Color = new Cairo.Color (.6, .6, .6, .15);
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/// Draws the entire view of the results window now on the surface passed in
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/// <param name="sr">
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/// A <see cref="Surface"/>
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private void DrawContextOnSurface (Surface sr)
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Context cr = new Context (sr);
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if (background == null) {
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background = cr.Target.CreateSimilar (cr.Target.Content, width, height);
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Context cr2 = new Context (background);
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DrawBackgroundOnContext (cr2);
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(cr2 as IDisposable).Dispose ();
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cr.Operator = Operator.Source;
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cr.SetSource (background);
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cr.Operator = Operator.Over;
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if (context != null && !string.IsNullOrEmpty (context.Query))
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RenderText (cr, new Gdk.Rectangle (10, 3, width-60, 20), 12, context.Query, QueryColor);
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if (Results != null) {
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string render_string = context.Cursor+1 + " of " + Results.Count + " ▸ ";
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if (context.ParentContext != null && context.ParentContext.Selection != null) {
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if (context.ParentContext.ParentContext != null && context.ParentContext.ParentContext.Selection != null) {
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render_string += context.ParentContext.ParentContext.Selection.Name + " ▸ ";
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render_string += context.ParentContext.Selection.Name + " ▸ ";
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RenderText (cr, new Gdk.Rectangle (10, height-BottomBorderWidth+3, width-20, 20), 11, render_string);
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int start_result = StartResult-(int) Math.Ceiling (scroll_offset);
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RenderHighlight (cr);
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for (int i = start_result; i < start_result+num_results+1 && i < Results.Count; i++) {
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(cr as IDisposable).Dispose ();
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public void InitChildInAnimation ()
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if (child_inout_surface == null) {
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Context cr = Gdk.CairoHelper.Create (GdkWindow);
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child_inout_surface = cr.Target.CreateSimilar (cr.Target.Content, width, height);
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(cr as IDisposable).Dispose ();
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DrawContextOnSurface (child_inout_surface);
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child_scroll_offset = 1;
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public void InitChildOutAnimation ()
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if (child_inout_surface == null) {
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Context cr = Gdk.CairoHelper.Create (GdkWindow);
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child_inout_surface = cr.Target.CreateSimilar (cr.Target.Content, width, height);
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(cr as IDisposable).Dispose ();
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DrawContextOnSurface (child_inout_surface);
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child_scroll_offset = -1;
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protected override bool OnExposeEvent (EventExpose evnt)
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return base.OnExposeEvent (evnt);
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void BufferItem (Element item)
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Context cr = Gdk.CairoHelper.Create (GdkWindow);
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Surface surface = cr.Target.CreateSimilar (cr.Target.Content, InternalWidth, SurfaceHeight);
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Context cr2 = new Context (surface);
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ItemRenderer.RenderElement (cr2, new Gdk.Point (border_width, 0), InternalWidth, item, controller.ElementHasChildren (item));
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surface_buffer[item] = surface;
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(cr2 as IDisposable).Dispose ();
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(cr as IDisposable).Dispose ();
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void RenderText (Context cr, Gdk.Rectangle region, int size, string text)
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RenderText (cr, region, size, text, "ffffff");
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case HUDStyle.Classic:
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RenderText (cr, region, size, text, "333333");
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throw new NotImplementedException ();
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void RenderText (Context cr, Gdk.Rectangle region, int size, string text, string color_string)
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Pango.Layout layout = new Pango.Layout (this.PangoContext);
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layout.Width = Pango.Units.FromPixels (region.Width);
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layout.Ellipsize = Pango.EllipsizeMode.End;
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layout.SetMarkup ("<span foreground=\"#" + color_string + "\">"+GLib.Markup.EscapeText (text)+"</span>");
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layout.FontDescription = Pango.FontDescription.FromString ("normal bold");
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layout.FontDescription.AbsoluteSize = Pango.Units.FromPixels (size);
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cr.MoveTo (region.X, region.Y);
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Pango.CairoHelper.ShowLayout (cr, layout);
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layout.Context.Dispose ();
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layout.FontDescription.Dispose ();
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Surface GetHighlightSource ()
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if (highlight_surface == null) {
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Context cr = Gdk.CairoHelper.Create (GdkWindow);
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highlight_surface = cr.Target.CreateSimilar (cr.Target.Content, width, SurfaceHeight);
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Context cr2 = new Context (highlight_surface);
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LinearGradient grad = new LinearGradient (0, 0, 0, SurfaceHeight);
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grad.AddColorStop (0, new Cairo.Color (.85, .85, .85, .2));
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grad.AddColorStop (1, new Cairo.Color (.95, .95, .95, .2));
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double radius=(SurfaceHeight-2)/2;
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int r_width = width-9;
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int r_height = SurfaceHeight-3;
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cr2.MoveTo (x, y + radius);
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cr2.Arc (x + radius, y + radius, radius, Math.PI, -Math.PI / 2);
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cr2.LineTo (x + r_width - radius, y);
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cr2.Arc (x + r_width - radius, y + radius, radius, -Math.PI / 2, 0);
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cr2.LineTo (x + r_width, y + r_height - radius);
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cr2.Arc (x + r_width - radius, y + r_height - radius, radius, 0, Math.PI / 2);
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cr2.LineTo (x + radius, y + r_height);
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cr2.Arc (x + radius, y + r_height - radius, radius, Math.PI / 2, Math.PI);
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cr2.Color = new Cairo.Color (0.9, 0.9, 0.9, 1);
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case HUDStyle.Classic:
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cr2.Rectangle (0, 0, width, SurfaceHeight);
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using (Gtk.Style rcstyle = Gtk.Rc.GetStyle (this)) {
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gdkColor = rcstyle.BaseColors[(int) StateType.Selected];
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cr2.Color = gdkColor.ConvertToCairo (.8);
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(cr as IDisposable).Dispose ();
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(cr2 as IDisposable).Dispose ();
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return highlight_surface;
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void RenderItem (Context cr, int item)
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if (item >= Results.Count || item < 0)
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int offset = (int) (SurfaceHeight*scroll_offset) + top_border_width;
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if (!surface_buffer.ContainsKey (Results[item])) {
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BufferItem (Results[item]);
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cr.Rectangle (border_width, top_border_width, InternalWidth, height-top_border_width-BottomBorderWidth);
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cr.Rectangle (border_width, offset+(item-StartResult)*SurfaceHeight, InternalWidth, SurfaceHeight);
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cr.Color = new Cairo.Color (.2, .2, .2, .2);
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cr.Operator = Operator.DestOver;
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cr.Operator = Operator.Over;
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cr.SetSource (surface_buffer[Results[item]], border_width, offset+(item-StartResult)*SurfaceHeight);
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void RenderHighlight (Context cr)
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int offset = (int) (SurfaceHeight*highlight_offset) + top_border_width;
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cr.Rectangle (0, offset+(Cursor-StartResult)*SurfaceHeight, width, SurfaceHeight);
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cr.SetSource (GetHighlightSource (), 0, offset+(Cursor-StartResult)*SurfaceHeight);
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public void SlideIn ()
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public void SlideOut ()
added
removed
Do.Interface.Linux/src/Do.Interface/Do.Interface.AnimationBase/BezelGlassResults.cs
