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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2017 - ROLI Ltd.
JUCE is an open source library subject to commercial or open-source
licensing.
By using JUCE, you agree to the terms of both the JUCE 5 End-User License
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
27th April 2017).
End User License Agreement: www.juce.com/juce-5-licence
Privacy Policy: www.juce.com/juce-5-privacy-policy
Or: You may also use this code under the terms of the GPL v3 (see
www.gnu.org/licenses).
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
DISCLAIMED.
==============================================================================
*/
#pragma once
//==============================================================================
/** A PropertyComponent for selecting files or folders.
The user may drag files over the property box, enter the path manually and/or click
the '...' button to open a file selection dialog box.
*/
class FilePathPropertyComponent : public PropertyComponent,
public FileDragAndDropTarget,
private Value::Listener
{
public:
FilePathPropertyComponent (Value valueToControl, const String& propertyName, bool isDir, bool thisOS = true,
const String& wildcardsToUse = "*", const File& relativeRoot = File())
: PropertyComponent (propertyName),
text (valueToControl, propertyName, 1024, false),
isDirectory (isDir), isThisOS (thisOS), wildcards (wildcardsToUse), root (relativeRoot)
{
textValue.referTo (valueToControl);
init();
}
/** Displays a default value when no value is specified by the user. */
FilePathPropertyComponent (ValueWithDefault& valueToControl, const String& propertyName, bool isDir, bool thisOS = true,
const String& wildcardsToUse = "*", const File& relativeRoot = File())
: PropertyComponent (propertyName),
text (valueToControl, propertyName, 1024, false),
isDirectory (isDir), isThisOS (thisOS), wildcards (wildcardsToUse), root (relativeRoot)
{
textValue = valueToControl.getPropertyAsValue();
init();
}
//==============================================================================
void refresh() override {}
void resized() override
{
auto bounds = getLocalBounds();
text.setBounds (bounds.removeFromLeft (jmax (400, bounds.getWidth() - 55)));
bounds.removeFromLeft (5);
browseButton.setBounds (bounds);
}
void paintOverChildren (Graphics& g) override
{
if (highlightForDragAndDrop)
{
g.setColour (findColour (defaultHighlightColourId).withAlpha (0.5f));
g.fillRect (getLookAndFeel().getPropertyComponentContentPosition (text));
}
}
//==============================================================================
bool isInterestedInFileDrag (const StringArray&) override { return true; }
void fileDragEnter (const StringArray&, int, int) override { highlightForDragAndDrop = true; repaint(); }
void fileDragExit (const StringArray&) override { highlightForDragAndDrop = false; repaint(); }
void filesDropped (const StringArray& selectedFiles, int, int) override
{
setTo (selectedFiles[0]);
highlightForDragAndDrop = false;
repaint();
}
private:
//==============================================================================
void init()
{
textValue.addListener (this);
text.setInterestedInFileDrag (false);
addAndMakeVisible (text);
browseButton.onClick = [this] { browse(); };
addAndMakeVisible (browseButton);
lookAndFeelChanged();
}
void setTo (File f)
{
if (isDirectory && ! f.isDirectory())
f = f.getParentDirectory();
auto pathName = (root == File()) ? f.getFullPathName()
: f.getRelativePathFrom (root);
text.setText (pathName);
updateEditorColour();
}
void browse()
{
File currentFile = {};
if (text.getText().isNotEmpty())
currentFile = root.getChildFile (text.getText());
if (isDirectory)
{
FileChooser chooser ("Select directory", currentFile);
if (chooser.browseForDirectory())
setTo (chooser.getResult());
}
else
{
FileChooser chooser ("Select file", currentFile, wildcards);
if (chooser.browseForFileToOpen())
setTo (chooser.getResult());
}
}
void updateEditorColour()
{
if (isThisOS)
{
text.setColour (TextPropertyComponent::textColourId, findColour (widgetTextColourId));
auto pathToCheck = text.getText();
if (pathToCheck.isNotEmpty())
{
pathToCheck.replace ("${user.home}", "~");
#if JUCE_WINDOWS
if (pathToCheck.startsWith ("~"))
pathToCheck = pathToCheck.replace ("~", File::getSpecialLocation (File::userHomeDirectory).getFullPathName());
#endif
if (! root.getChildFile (pathToCheck).exists())
text.setColour (TextPropertyComponent::textColourId, Colours::red);
}
}
}
void valueChanged (Value&) override
{
updateEditorColour();
}
void lookAndFeelChanged() override
{
browseButton.setColour (TextButton::buttonColourId, findColour (secondaryButtonBackgroundColourId));
browseButton.setColour (TextButton::textColourOffId, Colours::white);
updateEditorColour();
}
//==============================================================================
Value textValue;
TextPropertyComponent text;
TextButton browseButton { "..." };
bool isDirectory, isThisOS, highlightForDragAndDrop = false;
String wildcards;
File root;
//==============================================================================
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (FilePathPropertyComponent)
};
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