- clean working copy for leaving SVN

2022-06-28 19:04:46 +02:00
parent 62a2d47cb3
commit 762b8f0e7d
1966 changed files with 699872 additions and 126 deletions
@@ -0,0 +1,114 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software 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.
+
+  ==============================================================================
+*/
+
+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.clear();
+    repaint();
+
+    ScopedPointer<FileInputStream> in (fileToLoad.createInputStream());
+
+    if (in != nullptr)
+    {
+        if (ImageFileFormat* const format = ImageFileFormat::findImageFormatForStream (*in))
+        {
+            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);
+    }
+}