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// Copyright (c) 2013-2019 Bruyère Jean-Philippe <jp_bruyere@hotmail.com>
//
// This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
using System;
using Crow;
using System.IO;
using System.Text;
using Crow.IML;
using System.Runtime.CompilerServices;
using Glfw;
namespace ShowCase
{
class Showcase : SampleBase
{
static void Main ()
{
Environment.SetEnvironmentVariable ("FONTCONFIG_PATH", @"C:\Users\Jean-Philippe\source\vcpkg\installed\x64-windows\tools\fontconfig\fonts");
using (Showcase app = new Showcase ())
app.Run ();
}
public Container crowContainer;
public string CurrentDir {
get { return Configuration.Global.Get<string> (nameof (CurrentDir)); }
set {
if (CurrentDir == value)
return;
Configuration.Global.Set (nameof (CurrentDir), value);
NotifyValueChanged (CurrentDir);
}
}
string source, origSource;
public string CurrentFile {
get { return Configuration.Global.Get<string> (nameof (CurrentFile)); }
set {
if (CurrentFile == value)
return;
Configuration.Global.Set (nameof (CurrentFile), value);
NotifyValueChanged (CurrentFile);
}
}
public string Source {
get => source;
set {
if (source == value)
return;
source = value;
reloadFromSource ();
CMDSave.CanExecute = source != origSource;
NotifyValueChanged (source);
}
}
public static Picture IcoNew = new SvgPicture ("#Icons.blank-file.svg");
public static Picture IcoOpen = new SvgPicture ("#Icons.open.svg");
public static Picture IcoSave = new SvgPicture ("#Icons.save.svg");
public static Picture IcoSaveAs = new SvgPicture ("#Icons.save.svg");
public static Picture IcoQuit = new SvgPicture ("#Icons.sign-out.svg");
public static Picture IcoUndo = new SvgPicture ("#Icons.undo.svg");
public static Picture IcoRedo = new SvgPicture ("#Icons.redo.svg");
public static Picture IcoCut = new SvgPicture ("#Icons.scissors.svg");
public static Picture IcoCopy = new SvgPicture ("#Icons.copy-file.svg");
public static Picture IcoPaste = new SvgPicture ("#Icons.paste-on-document.svg");
public Command CMDNew, CMDSave, CMDSaveAs, CMDUndo, CMDRedo, CMDCut, CMDCopy, CMDPaste;
void initCommands ()
{
CMDNew = new Command (new Action (onNewFile)) { Caption = "New", Icon = "#Icons.blank-file.svg", CanExecute = true };
CMDSave = new Command (new Action (onSave)) { Caption = "Save", Icon = "#Icons.save.svg", CanExecute = false };
CMDSaveAs = new Command (new Action (onSaveAs)) { Caption = "Save As...", Icon = "#Icons.save.svg", CanExecute = true };
/*CMDUndo = new Command (new Action (undo)) { Caption = "Undo", Icon = IcoUndo, CanExecute = false };
CMDRedo = new Command (new Action (redo)) { Caption = "Redo", Icon = IcoRedo, CanExecute = false };
CMDCut = new Command (new Action (cut)) { Caption = "Cut", Icon = IcoCut, CanExecute = false };
CMDCopy = new Command (new Action (copy)) { Caption = "Copy", Icon = IcoCopy, CanExecute = false };
CMDPaste = new Command (new Action (paste)) { Caption = "Paste", Icon = IcoPaste, CanExecute = false };*/
}
public new bool IsDirty {
get => !string.Equals(origSource, source);
}
void onSave ()
{
if (!File.Exists (CurrentFile)) {
onSaveAs ();
return;
}
save ();
}
void onSaveAs ()
{
string dir = Path.GetDirectoryName (CurrentFile);
if (string.IsNullOrEmpty (dir))
dir = Directory.GetCurrentDirectory ();
LoadIMLFragment (@"<FileDialog Width='60%' Height='50%' Caption='Save as ...' CurrentDirectory='" +
dir + "' SelectedFile='" +
Path.GetFileName(CurrentFile) + "' OkClicked='saveFileDialog_OkClicked'/>").DataSource = this;
}
void saveFileDialog_OkClicked (object sender, EventArgs e)
{
FileDialog fd = sender as FileDialog;
if (string.IsNullOrEmpty (fd.SelectedFileFullPath))
return;
if (File.Exists(fd.SelectedFileFullPath)) {
MessageBox mb = MessageBox.ShowModal (this, MessageBox.Type.YesNo, "File exists, overwrite?");
mb.Yes += (sender2, e2) => {
CurrentFile = fd.SelectedFileFullPath;
save ();
};
return;
}
CurrentFile = fd.SelectedFileFullPath;
save ();
}
void onNewFile () {
if (IsDirty) {
MessageBox mb = MessageBox.ShowModal (this, MessageBox.Type.YesNo, "Current file has unsaved changes, are you sure?");
mb.Yes += (sender, e) => newFile ();
} else
newFile ();
}
void newFile()
{
origSource = "";
Source = "<Widget Background='DarkGrey'/>";
if (!string.IsNullOrEmpty (CurrentFile))
CurrentFile = Path.Combine (Path.GetDirectoryName (CurrentFile), "newfile.crow");
else
CurrentFile = Path.Combine (CurrentDir, "newfile.crow");
}
void save () {
using (Stream s = new FileStream(CurrentFile, FileMode.Create)) {
s.WriteByte (0xEF);
s.WriteByte (0xBB);
s.WriteByte (0xBF);
byte [] buff = Encoding.UTF8.GetBytes (source);
s.Write (buff, 0, buff.Length);
}
origSource = source;
}
protected override void OnInitialized ()
{
initCommands ();
base.OnInitialized ();
if (string.IsNullOrEmpty (CurrentDir))
CurrentDir = Path.Combine (Directory.GetCurrentDirectory (), "Interfaces");
Widget g = Load ("#ShowCase.showcase.crow");
crowContainer = g.FindByName ("CrowContainer") as Container;
g.DataSource = this;
if (!File.Exists(CurrentFile))
origSource = Source = @"<Label Text='Hello World' Background='MediumSeaGreen' Margin='10'/>";
//I set an empty object as datasource at this level to force update when new
//widgets are added to the interface
crowContainer.DataSource = new object ();
hideError ();
reloadFromFile ();
}
public void goUpDirClick (object sender, MouseButtonEventArgs e)
{
string root = Directory.GetDirectoryRoot (CurrentDir);
if (CurrentDir == root)
return;
CurrentDir = Directory.GetParent (CurrentDir).FullName;
}
void Dv_SelectedItemChanged (object sender, SelectionChangeEventArgs e)
{
FileSystemInfo fi = e.NewValue as FileSystemInfo;
if (fi == null)
return;
if (fi is DirectoryInfo)
return;
if (IsDirty) {
MessageBox mb = MessageBox.ShowModal (this, MessageBox.Type.YesNo, "Current file has unsaved changes, are you sure?");
mb.Yes += (mbsender, mbe) => { CurrentFile = fi.FullName; reloadFromFile (); };
return;
}
CurrentFile = fi.FullName;
reloadFromFile ();
}
void showError (Exception ex)
{
NotifyValueChanged ("ErrorMessage", (object)ex.Message);
NotifyValueChanged ("ShowError", true);
}
void hideError ()
{
NotifyValueChanged ("ShowError", false);
}
void reloadFromFile ()
{
if (File.Exists (CurrentFile)) {
using (Stream s = new FileStream (CurrentFile, FileMode.Open)) {
using (StreamReader sr = new StreamReader (s))
origSource = sr.ReadToEnd ();
}
Source = origSource;
}
}
void reloadFromSource ()
{
hideError ();
Widget g = null;
try {
lock (UpdateMutex) {
Instantiator inst = null;
using (MemoryStream ms = new MemoryStream (Encoding.UTF8.GetBytes (source)))
inst = new Instantiator (this, ms);
g = inst.CreateInstance ();
crowContainer.SetChild (g);
g.DataSource = this;
}
} catch (InstantiatorException itorex) {
Console.WriteLine (itorex);
showError (itorex.InnerException);
} catch (Exception ex) {
Console.WriteLine (ex);
showError (ex);
}
}
}
}
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