paulxstretch/deps/juce/examples/GUI/MDIDemo.h
essej 25bd5d8adb git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"
2022-04-18 17:51:22 -04:00

272 lines
8.7 KiB
C++

/*
==============================================================================
This file is part of the JUCE examples.
Copyright (c) 2020 - Raw Material Software Limited
The code included in this file is provided under the terms of the ISC license
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
To use, copy, modify, and/or distribute this software for any purpose with or
without fee is hereby granted provided that the above copyright notice and
this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES,
WHETHER EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR
PURPOSE, ARE DISCLAIMED.
==============================================================================
*/
/*******************************************************************************
The block below describes the properties of this PIP. A PIP is a short snippet
of code that can be read by the Projucer and used to generate a JUCE project.
BEGIN_JUCE_PIP_METADATA
name: MDIDemo
version: 1.0.0
vendor: JUCE
website: http://juce.com
description: Displays and edits MDI files.
dependencies: juce_core, juce_data_structures, juce_events, juce_graphics,
juce_gui_basics, juce_gui_extra
exporters: xcode_mac, vs2019, linux_make, androidstudio, xcode_iphone
moduleFlags: JUCE_STRICT_REFCOUNTEDPOINTER=1
type: Component
mainClass: MDIDemo
useLocalCopy: 1
END_JUCE_PIP_METADATA
*******************************************************************************/
#pragma once
#include "../Assets/DemoUtilities.h"
//==============================================================================
/** The Note class contains text editor used to display and edit the note's contents and will
also listen to changes in the text and mark the FileBasedDocument as 'dirty'. This 'dirty'
flag is used to prompt the user to save the note when it is closed.
*/
class Note : public Component,
public FileBasedDocument
{
public:
Note (const String& name, const String& contents)
: FileBasedDocument (".jnote", "*.jnote",
"Browse for note to load",
"Choose file to save note to"),
textValueObject (contents)
{
// we need to use an separate Value object as our text source so it doesn't get marked
// as changed immediately
setName (name);
editor.setMultiLine (true);
editor.setReturnKeyStartsNewLine (true);
editor.getTextValue().referTo (textValueObject);
addAndMakeVisible (editor);
editor.onTextChange = [this] { changed(); };
}
void resized() override
{
editor.setBounds (getLocalBounds());
}
String getDocumentTitle() override
{
return getName();
}
Result loadDocument (const File& file) override
{
editor.setText (file.loadFileAsString());
return Result::ok();
}
Result saveDocument (const File& file) override
{
// attempt to save the contents into the given file
if (file.replaceWithText (editor.getText()))
return Result::ok();
return Result::fail ("Can't write to file");
}
File getLastDocumentOpened() override
{
// not interested in this for now
return {};
}
void setLastDocumentOpened (const File& /*file*/) override
{
// not interested in this for now
}
File getSuggestedSaveAsFile (const File&) override
{
return File::getSpecialLocation (File::userDesktopDirectory)
.getChildFile (getName())
.withFileExtension ("jnote");
}
private:
Value textValueObject;
TextEditor editor;
void lookAndFeelChanged() override
{
editor.applyFontToAllText (editor.getFont());
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (Note)
};
//==============================================================================
/** Simple MultiDocumentPanel that just tries to save our notes when they are closed.
*/
class DemoMultiDocumentPanel : public MultiDocumentPanel
{
public:
DemoMultiDocumentPanel() = default;
void tryToCloseDocumentAsync (Component* component, std::function<void (bool)> callback) override
{
if (auto* note = dynamic_cast<Note*> (component))
{
SafePointer<DemoMultiDocumentPanel> parent { this };
note->saveIfNeededAndUserAgreesAsync ([parent, callback] (FileBasedDocument::SaveResult result)
{
if (parent != nullptr)
callback (result == FileBasedDocument::savedOk);
});
}
}
private:
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (DemoMultiDocumentPanel)
};
//==============================================================================
/** Simple multi-document panel that manages a number of notes that you can store to files.
By default this will look for notes saved to the desktop and load them up.
*/
class MDIDemo : public Component,
public FileDragAndDropTarget
{
public:
MDIDemo()
{
setOpaque (true);
showInTabsButton.setToggleState (false, dontSendNotification);
showInTabsButton.onClick = [this] { updateLayoutMode(); };
addAndMakeVisible (showInTabsButton);
addNoteButton.onClick = [this] { addNote ("Note " + String (multiDocumentPanel.getNumDocuments() + 1), "Hello World!"); };
addAndMakeVisible (addNoteButton);
closeApplicationButton.onClick = [this]
{
multiDocumentPanel.closeAllDocumentsAsync (true, [] (bool allSaved)
{
if (allSaved)
JUCEApplicationBase::quit();
});
};
addAndMakeVisible (closeApplicationButton);
addAndMakeVisible (multiDocumentPanel);
multiDocumentPanel.setBackgroundColour (Colours::transparentBlack);
updateLayoutMode();
addNote ("Notes Demo", "You can drag-and-drop text files onto this page to open them as notes..");
addExistingNotes();
setSize (500, 500);
}
void paint (Graphics& g) override
{
g.fillAll (getUIColourIfAvailable (LookAndFeel_V4::ColourScheme::UIColour::windowBackground));
}
void resized() override
{
auto area = getLocalBounds();
auto buttonArea = area.removeFromTop (28).reduced (2);
closeApplicationButton.setBounds (buttonArea.removeFromRight (150));
addNoteButton .setBounds (buttonArea.removeFromRight (150));
showInTabsButton .setBounds (buttonArea);
multiDocumentPanel.setBounds (area);
}
bool isInterestedInFileDrag (const StringArray&) override
{
return true;
}
void filesDropped (const StringArray& filenames, int /*x*/, int /*y*/) override
{
Array<File> files;
for (auto& f : filenames)
files.add ({ f });
createNotesForFiles (files);
}
void createNotesForFiles (const Array<File>& files)
{
for (auto& file : files)
{
auto content = file.loadFileAsString();
if (content.length() > 20000)
content = "Too long!";
addNote (file.getFileName(), content);
}
}
private:
void updateLayoutMode()
{
multiDocumentPanel.setLayoutMode (showInTabsButton.getToggleState() ? MultiDocumentPanel::MaximisedWindowsWithTabs
: MultiDocumentPanel::FloatingWindows);
}
void addNote (const String& name, const String& content)
{
auto* newNote = new Note (name, content);
newNote->setSize (200, 200);
multiDocumentPanel.addDocument (newNote, Colours::lightblue.withAlpha (0.6f), true);
}
void addExistingNotes()
{
Array<File> files;
File::getSpecialLocation (File::userDesktopDirectory).findChildFiles (files, File::findFiles, false, "*.jnote");
createNotesForFiles (files);
}
ToggleButton showInTabsButton { "Show with tabs" };
TextButton addNoteButton { "Create a new note" },
closeApplicationButton { "Close app" };
DemoMultiDocumentPanel multiDocumentPanel;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MDIDemo)
};