361 lines
8.7 KiB
C#
361 lines
8.7 KiB
C#
// SparkleShare, an instant update workflow to Git.
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// Copyright (C) 2010 Hylke Bons <hylkebons@gmail.com>
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//
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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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//
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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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//
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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 Gtk;
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using Mono.Unix;
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using System;
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using System.Diagnostics;
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using System.IO;
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using System.Text.RegularExpressions;
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namespace SparkleShare {
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public class SparkleDiff
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{
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public static void Main (string [] args)
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{
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if (args.Length > 0) {
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string file_path = args [0];
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if (File.Exists (file_path)) {
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Gtk.Application.Init ();
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SparkleDiffWindow sparkle_diff_window;
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sparkle_diff_window = new SparkleDiffWindow (file_path);
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sparkle_diff_window.ShowAll ();
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// The main loop
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Gtk.Application.Run ();
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} else {
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Console.WriteLine ("SparkleDiff: " + file_path + ": No such file or directory.");
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Environment.Exit (0);
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}
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}
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}
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}
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public class SparkleDiffWindow : Window
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{
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// Short alias for the translations
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public static string _ (string s)
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{
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return Catalog.GetString (s);
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}
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private RevisionView ViewLeft;
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private RevisionView ViewRight;
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private string [] Revisions;
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public SparkleDiffWindow (string file_path) : base ("")
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{
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string file_name = System.IO.Path.GetFileName (file_path);
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SetSizeRequest (1024, 600);
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SetPosition (WindowPosition.Center);
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BorderWidth = 12;
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DeleteEvent += Quit;
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IconName = "image-x-generic";
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Title = String.Format(_("Comparing Revisions of ‘{0}’"), file_name);
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Revisions = GetRevisionsForFile (file_path);
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VBox layout_vertical = new VBox (false, 12);
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HBox layout_horizontal = new HBox (false, 12);
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ViewLeft = new RevisionView (Revisions);
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ViewRight = new RevisionView (Revisions);
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RevisionImage revision_image_left = new RevisionImage (file_path, Revisions [1]);
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RevisionImage revision_image_right = new RevisionImage (file_path, Revisions [0]);
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ViewLeft.SetImage (revision_image_left);
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ViewRight.SetImage (revision_image_right);
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ViewLeft.ComboBox.Changed += delegate {
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RevisionImage revision_image;
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revision_image = new RevisionImage (file_path, Revisions [ViewLeft.ComboBox.Active]);
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ViewLeft.SetImage (revision_image);
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HookUpViews ();
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};
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ViewRight.ComboBox.Changed += delegate {
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RevisionImage revision_image;
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revision_image = new RevisionImage (file_path, Revisions [ViewRight.ComboBox.Active]);
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ViewRight.SetImage (revision_image);
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HookUpViews ();
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};
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layout_horizontal.PackStart (ViewLeft);
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layout_horizontal.PackStart (ViewRight);
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HookUpViews ();
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HButtonBox dialog_buttons = new HButtonBox ();
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dialog_buttons.Layout = ButtonBoxStyle.End;
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dialog_buttons.BorderWidth = 0;
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Button CloseButton = new Button (Stock.Close);
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CloseButton.Clicked += delegate (object o, EventArgs args) {
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Environment.Exit (0);
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};
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dialog_buttons.Add (CloseButton);
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layout_vertical.PackStart (layout_horizontal, true, true, 0);
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layout_vertical.PackStart (dialog_buttons, false, false, 0);
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Add (layout_vertical);
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}
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// Hooks up two views so they will be kept in sync
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private void HookUpViews () {
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ViewLeft.ScrolledWindow.Hadjustment.ValueChanged += SyncViewsHorizontally;
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ViewLeft.ScrolledWindow.Vadjustment.ValueChanged += SyncViewsVertically;
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ViewRight.ScrolledWindow.Hadjustment.ValueChanged += SyncViewsHorizontally;
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ViewRight.ScrolledWindow.Vadjustment.ValueChanged += SyncViewsVertically;
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}
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// Keeps the two image views in sync horizontally
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private void SyncViewsHorizontally (object o, EventArgs args) {
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Adjustment source_adjustment = (Adjustment) o;
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if (source_adjustment == ViewLeft.ScrolledWindow.Hadjustment)
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ViewRight.ScrolledWindow.Hadjustment = source_adjustment;
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else
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ViewLeft.ScrolledWindow.Hadjustment = source_adjustment;
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}
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// Keeps the two image views in sync vertically
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private void SyncViewsVertically (object o, EventArgs args) {
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Adjustment source_adjustment = (Adjustment) o;
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if (source_adjustment == ViewLeft.ScrolledWindow.Vadjustment)
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ViewRight.ScrolledWindow.Vadjustment = source_adjustment;
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else
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ViewLeft.ScrolledWindow.Vadjustment = source_adjustment;
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}
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// Gets a list of all earlier revisions of this file
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private string [] GetRevisionsForFile (string file_path)
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{
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string file_name = System.IO.Path.GetFileName (file_path);
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Process process = new Process ();
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process.EnableRaisingEvents = true;
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process.StartInfo.RedirectStandardOutput = true;
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process.StartInfo.UseShellExecute = false;
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// TODO: Nice commit summary and "Current Revision"
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process.StartInfo.WorkingDirectory = System.IO.Path.GetDirectoryName (file_path);
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process.StartInfo.FileName = "git";
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process.StartInfo.Arguments = "log --format=\"%H\" " + file_name;
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process.Start ();
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string output = process.StandardOutput.ReadToEnd ();
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return Regex.Split (output.Trim (), "\n");
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}
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// Quits the program
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private void Quit (object o, EventArgs args) {
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Environment.Exit (0);
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}
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}
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// An image grabbed from a stream generated by Git
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public class RevisionImage : Image
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{
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public string Revision;
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public string FilePath;
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public RevisionImage (string file_path, string revision) : base ()
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{
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Revision = revision;
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FilePath = file_path;
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Process process = new Process ();
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process.EnableRaisingEvents = true;
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process.StartInfo.RedirectStandardOutput = true;
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process.StartInfo.UseShellExecute = false;
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process.StartInfo.WorkingDirectory = System.IO.Path.GetDirectoryName (FilePath);
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process.StartInfo.FileName = "git";
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process.StartInfo.Arguments = "show " + revision + ":" + System.IO.Path.GetFileName (FilePath);
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process.Start ();
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Pixbuf = new Gdk.Pixbuf ((System.IO.Stream) process.StandardOutput.BaseStream);
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}
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}
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// A custom widget containing an image view,
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// previous/next buttons and a combobox
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public class RevisionView : VBox
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{
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public ScrolledWindow ScrolledWindow;
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public ComboBox ComboBox;
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public Button ButtonPrevious;
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public Button ButtonNext;
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private int ValueCount;
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private Image Image;
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public RevisionView (string [] revisions) : base (false, 6)
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{
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Image = new Image ();
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ScrolledWindow = new ScrolledWindow ();
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ScrolledWindow.AddWithViewport (Image);
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PackStart (ScrolledWindow, true, true, 0);
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HBox controls = new HBox ();
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controls.BorderWidth = 0;
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Image image_previous = new Image ();
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image_previous.IconName = "go-previous";
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ButtonPrevious = new Button (image_previous);
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ButtonPrevious.Clicked += PreviousInComboBox;
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ValueCount = 0;
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ComboBox = ComboBox.NewText ();
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foreach (string revision in revisions) {
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ComboBox.AppendText (revision);
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}
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ComboBox.Active = 0;
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ValueCount = revisions.Length;
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Image image_next = new Image ();
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image_next.IconName = "go-next";
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ButtonNext = new Button (image_next);
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ButtonNext.Clicked += NextInComboBox;
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controls.Add (ButtonPrevious);
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controls.Add (ComboBox);
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controls.Add (ButtonNext);
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PackStart (controls, false, false, 0);
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UpdateControls ();
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}
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public void NextInComboBox (object o, EventArgs args) {
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if (ComboBox.Active > 0)
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ComboBox.Active--;
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UpdateControls ();
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}
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public void PreviousInComboBox (object o, EventArgs args) {
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if (ComboBox.Active + 1 < ValueCount)
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ComboBox.Active++;
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UpdateControls ();
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}
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// Changes the image that is viewed
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public void SetImage (Image image) {
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Image = image;
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Remove (ScrolledWindow);
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ScrolledWindow = new ScrolledWindow ();
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ScrolledWindow.AddWithViewport (Image);
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Add (ScrolledWindow);
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ReorderChild (ScrolledWindow, 0);
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ShowAll ();
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}
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// Updates the buttons to be disabled or enabled when needed
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public void UpdateControls () {
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// TODO: Doesn't work yet. Sleepy -.-
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ButtonPrevious.State = StateType.Normal;
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ButtonNext.State = StateType.Normal;
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if (ComboBox.Active == 0)
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ButtonNext.State = StateType.Insensitive;
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if (ComboBox.Active + 1 == ValueCount)
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ButtonPrevious.State = StateType.Insensitive;
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}
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}
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}
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