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JUCE/extras/Projucer/Source/Application/jucer_FilePreviewComponent.h

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C++

/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
#ifndef JUCER_FILEPREVIEWCOMPONENT_H_INCLUDED
#define JUCER_FILEPREVIEWCOMPONENT_H_INCLUDED
#include "../Utility/jucer_ProjucerLookAndFeel.h"
//==============================================================================
/**
*/
class ItemPreviewComponent : public Component
{
public:
ItemPreviewComponent (const File& f) : file (f)
{
setOpaque (true);
tryToLoadImage();
}
void paint (Graphics& g) override
{
ProjucerLookAndFeel::fillWithBackgroundTexture (*this, g);
if (drawable != nullptr)
{
Rectangle<float> contentBounds (drawable->getDrawableBounds());
if (DrawableComposite* dc = dynamic_cast<DrawableComposite*> (drawable.get()))
{
Rectangle<float> r (dc->getContentArea().resolve (nullptr));
if (! r.isEmpty())
contentBounds = r;
}
Rectangle<float> area = RectanglePlacement (RectanglePlacement::centred | RectanglePlacement::onlyReduceInSize)
.appliedTo (contentBounds, Rectangle<float> (4.0f, 22.0f, getWidth() - 8.0f, getHeight() - 26.0f));
Path p;
p.addRectangle (area);
DropShadow (Colours::black.withAlpha (0.5f), 6, Point<int> (0, 1)).drawForPath (g, p);
g.fillCheckerBoard (area.getSmallestIntegerContainer(), 24, 24,
Colour (0xffffffff), Colour (0xffeeeeee));
drawable->draw (g, 1.0f, RectanglePlacement (RectanglePlacement::stretchToFit)
.getTransformToFit (contentBounds, area.toFloat()));
}
g.setFont (Font (14.0f, Font::bold));
g.setColour (findColour (mainBackgroundColourId).contrasting());
g.drawMultiLineText (facts.joinIntoString ("\n"), 10, 15, getWidth() - 16);
}
private:
StringArray facts;
File file;
ScopedPointer<Drawable> drawable;
void tryToLoadImage()
{
facts.clear();
facts.add (file.getFullPathName());
drawable = nullptr;
{
ScopedPointer<InputStream> input (file.createInputStream());
if (input != nullptr)
{
const int64 totalSize = input->getTotalLength();
String formatName;
if (ImageFileFormat* format = ImageFileFormat::findImageFormatForStream (*input))
formatName = " " + format->getFormatName();
input = nullptr;
Image image (ImageCache::getFromFile (file));
if (image.isValid())
{
DrawableImage* d = new DrawableImage();
d->setImage (image);
drawable = d;
facts.add (String (image.getWidth()) + " x " + String (image.getHeight()) + formatName);
}
if (totalSize > 0)
facts.add (File::descriptionOfSizeInBytes (totalSize));
}
}
if (drawable == nullptr)
{
ScopedPointer<XmlElement> svg (XmlDocument::parse (file));
if (svg != nullptr)
drawable = Drawable::createFromSVG (*svg);
}
facts.removeEmptyStrings (true);
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ItemPreviewComponent)
};
#endif // JUCER_FILEPREVIEWCOMPONENT_H_INCLUDED