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First check-in of the "jucequake": a major re-organisation of the library to break it up into modules. For more details about this, see the website forum..

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This commit is contained in:
Julian Storer 2011-08-12 10:04:52 +01:00
parent 1a21c89755
commit b70e0a28d2
1527 changed files with 90380 additions and 396643 deletions
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130
src/gui/components/filebrowser/juce_ImagePreviewComponent.cpp
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/*
==============================================================================
This file is part of the JUCE library - "Jules' Utility Class Extensions"
Copyright 2004-11 by Raw Material Software Ltd.
------------------------------------------------------------------------------
JUCE can be redistributed and/or modified under the terms of the GNU General
Public License (Version 2), as published by the Free Software Foundation.
A copy of the license is included in the JUCE distribution, or can be found
online 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.rawmaterialsoftware.com/juce for more information.
==============================================================================
*/
#include "../../../core/juce_StandardHeader.h"
BEGIN_JUCE_NAMESPACE
#include "juce_ImagePreviewComponent.h"
#include "../../graphics/imaging/juce_ImageFileFormat.h"
#include "../../../io/files/juce_FileInputStream.h"
//==============================================================================
ImagePreviewComponent::ImagePreviewComponent()
{
}
ImagePreviewComponent::~ImagePreviewComponent()
{
}
//==============================================================================
void ImagePreviewComponent::getThumbSize (int& w, int& h) const
{
const int availableW = proportionOfWidth (0.97f);
const int availableH = getHeight() - 13 * 4;
const double scale = jmin (1.0,
availableW / (double) w,
availableH / (double) h);
w = roundToInt (scale * w);
h = roundToInt (scale * h);
}
void ImagePreviewComponent::selectedFileChanged (const File& file)
{
if (fileToLoad != file)
{
fileToLoad = file;
startTimer (100);
}
}
void ImagePreviewComponent::timerCallback()
{
stopTimer();
currentThumbnail = Image::null;
currentDetails = String::empty;
repaint();
ScopedPointer <FileInputStream> in (fileToLoad.createInputStream());
if (in != nullptr)
{
ImageFileFormat* const format = ImageFileFormat::findImageFormatForStream (*in);
if (format != nullptr)
{
currentThumbnail = format->decodeImage (*in);
if (currentThumbnail.isValid())
{
int w = currentThumbnail.getWidth();
int h = currentThumbnail.getHeight();
currentDetails
<< fileToLoad.getFileName() << "\n"
<< format->getFormatName() << "\n"
<< w << " x " << h << " pixels\n"
<< File::descriptionOfSizeInBytes (fileToLoad.getSize());
getThumbSize (w, h);
currentThumbnail = currentThumbnail.rescaled (w, h);
}
}
}
}
void ImagePreviewComponent::paint (Graphics& g)
{
if (currentThumbnail.isValid())
{
g.setFont (13.0f);
int w = currentThumbnail.getWidth();
int h = currentThumbnail.getHeight();
getThumbSize (w, h);
const int numLines = 4;
const int totalH = 13 * numLines + h + 4;
const int y = (getHeight() - totalH) / 2;
g.drawImageWithin (currentThumbnail,
(getWidth() - w) / 2, y, w, h,
RectanglePlacement::centred | RectanglePlacement::onlyReduceInSize,
false);
g.drawFittedText (currentDetails,
0, y + h + 4, getWidth(), 100,
Justification::centredTop, numLines);
}
}
END_JUCE_NAMESPACE