+++ /dev/null
-//
-// Copyright Zach Wily
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// - Redistributions of source code must retain the above copyright notice, this
-// list of conditions and the following disclaimer.
-//
-// - Redistributions in binary form must reproduce the above copyright notice, this
-// list of conditions and the following disclaimer in the documentation and/or
-// other materials provided with the distribution.
-//
-// - Neither the name of Zach Wily nor the names of its contributors may be used to
-// endorse or promote products derived from this software without specific prior
-// written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-
-#import <Foundation/Foundation.h>
-
-@interface ImageResizer : NSObject {
-
-}
-
-+ (NSData*) getScaledImageFromData:(NSData*)data toSize:(NSSize)size;
-
-@end
+++ /dev/null
-//
-// Copyright Zach Wily
-// All rights reserved.
-//
-// Redistribution and use in source and binary forms, with or without modification,
-// are permitted provided that the following conditions are met:
-//
-// - Redistributions of source code must retain the above copyright notice, this
-// list of conditions and the following disclaimer.
-//
-// - Redistributions in binary form must reproduce the above copyright notice, this
-// list of conditions and the following disclaimer in the documentation and/or
-// other materials provided with the distribution.
-//
-// - Neither the name of Zach Wily nor the names of its contributors may be used to
-// endorse or promote products derived from this software without specific prior
-// written permission.
-//
-// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-// ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
-// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-//
-
-#import "ImageResizer.h"
-#import "QuickTime/QuickTime.h"
-
-Handle myCreateHandleDataRef(
- Handle dataHandle,
- Str255 fileName,
- OSType fileType,
- StringPtr mimeTypeString,
- Ptr initDataPtr,
- Size initDataByteCount
- );
-
-NSSize getGoodSize(NSSize size, NSSize maxSize);
-
-@implementation ImageResizer
-
-+ (NSData*) getScaledImageFromData:(NSData*)data toSize:(NSSize)size {
- NSData *scaledImageData;
-
- Handle imageDataH = NULL;
- PtrToHand([data bytes], &imageDataH, [data length]);
- Handle dataRef = myCreateHandleDataRef(imageDataH, "\pdummy.jpg", kQTFileTypeJPEG, nil, nil, 0);
-
- // create a Graphics Importer component that will read from the PNG data
- ComponentInstance importComponent=0, exportComponent=0;
- GetGraphicsImporterForDataRef(dataRef, HandleDataHandlerSubType, &importComponent); // TODO: check return value
- DisposeHandle(dataRef);
-
- // get metadata
- UserData imageMetadata;
- NewUserData(&imageMetadata);
- GraphicsImportGetMetaData(importComponent, imageMetadata);
- //GraphicsImportGetDescription(importComponent, &imageDescription);
-
- Rect naturalBounds, scaledBounds;
- GraphicsImportGetNaturalBounds(importComponent, &naturalBounds);
-
- NSSize scaledSize = getGoodSize(NSMakeSize(naturalBounds.right, naturalBounds.bottom), size);
-
- scaledBounds = naturalBounds;
- scaledBounds.right = scaledSize.width;
- scaledBounds.bottom = scaledSize.height;
-
- GraphicsImportSetBoundsRect( importComponent, &scaledBounds );
-
- // Now the exporter
- OpenADefaultComponent(GraphicsExporterComponentType, kQTFileTypeJPEG, &exportComponent);
-
- GraphicsExportSetInputGraphicsImporter(exportComponent, importComponent);
-
- Handle scaledImageDataH = NewHandle(0);
- GraphicsExportSetOutputHandle(exportComponent, scaledImageDataH);
-
- GraphicsExportSetMetaData(exportComponent, imageMetadata);
-// GraphicsExportSetDescription(exportComponent, imageDescription);
- GraphicsExportSetExifEnabled(exportComponent, TRUE);
-
- unsigned long actualSizeWritten = 0;
- GraphicsExportDoExport(exportComponent, &actualSizeWritten);
- HLock(scaledImageDataH);
- scaledImageData = [NSData dataWithBytes:*scaledImageDataH
- length:GetHandleSize(scaledImageDataH)];
- HUnlock(scaledImageDataH);
-
- DisposeHandle(scaledImageDataH);
- CloseComponent(exportComponent);
- DisposeUserData(imageMetadata);
- CloseComponent(importComponent);
- DisposeHandle(imageDataH);
-
- return scaledImageData;
-}
-
-NSSize getGoodSize(NSSize size, NSSize maxSize) {
- int old_x = size.width;
- int old_y = size.height;
- int new_x = maxSize.width;
- int new_y = maxSize.height;
-
- // flip the Max dimensions if our source is taller than wide
- if (old_y > old_x) {
- new_x = maxSize.height;
- new_y = maxSize.width;
- }
-
- int good_x;
- int good_y;
-
- float aspect = (float)old_x / (float)old_y;
-
- if (aspect >= 1) {
- good_x = new_x;
- good_y = new_x / aspect;
-
- if (good_y > new_y) {
- good_y = new_y;
- good_x = new_y * aspect;
- }
- }
- else {
- good_y = new_y;
- good_x = aspect * new_y;
-
- if (good_x > new_x) {
- good_x = new_x;
- good_y = new_x / aspect;
- }
- }
- // Don't go any bigger!
- if ((good_x > old_x) || (good_y > old_y)) {
- good_x = old_x;
- good_y = old_y;
- }
-
- return NSMakeSize(good_x, good_y);
-}
-
-Handle myCreateHandleDataRef(
- Handle dataHandle,
- Str255 fileName,
- OSType fileType,
- StringPtr mimeTypeString,
- Ptr initDataPtr,
- Size initDataByteCount
- )
-{
- OSErr err;
- Handle dataRef = nil;
- Str31 tempName;
- long atoms[3];
- StringPtr name;
-
-
- // First create a data reference handle for our data
- err = PtrToHand( &dataHandle, &dataRef, sizeof(Handle));
- if (err) goto bail;
-
- // If this is QuickTime 3 or later, we can add
- // the filename to the data ref to help importer
- // finding process. Find uses the extension.
-
- name = fileName;
- if (name == nil)
- {
- tempName[0] = 0;
- name = tempName;
- }
-
- // Only add the file name if we are also adding a
- // file type, MIME type or initialization data
- if ((fileType) || (mimeTypeString) || (initDataPtr))
- {
- err = PtrAndHand(name, dataRef, name[0]+1);
- if (err) goto bail;
- }
-
- // If this is QuickTime 4, the handle data handler
- // can also be told the filetype and/or
- // MIME type by adding data ref extensions. These
- // help the importer finding process.
- // NOTE: If you add either of these, you MUST add
- // a filename first -- even if it is an empty Pascal
- // string. Under QuickTime 3, any data ref extensions
- // will be ignored.
-
- // to add file type, you add a classic atom followed
- // by the MacOS filetype for the kind of file
-
- if (fileType)
- {
- atoms[0] = EndianU32_NtoB(sizeof(long) * 3);
- atoms[1] = EndianU32_NtoB(kDataRefExtensionMacOSFileType);
- atoms[2] = EndianU32_NtoB(fileType);
-
- err = PtrAndHand(atoms, dataRef, sizeof(long) * 3);
- if (err) goto bail;
- }
-
-
- // to add MIME type information, add a classic atom followed by
- // a Pascal string holding the MIME type
-
- if (mimeTypeString)
- {
- atoms[0] = EndianU32_NtoB(sizeof(long) * 2 + mimeTypeString[0]+1);
- atoms[1] = EndianU32_NtoB(kDataRefExtensionMIMEType);
-
- err = PtrAndHand(atoms, dataRef, sizeof(long) * 2);
- if (err) goto bail;
-
- err = PtrAndHand(mimeTypeString, dataRef, mimeTypeString[0]+1);
- if (err) goto bail;
- }
-
- // add any initialization data, but only if a dataHandle was
- // not already specified (any initialization data is ignored
- // in this case)
- if((dataHandle == nil) && (initDataPtr))
- {
-
- atoms[0] = EndianU32_NtoB(sizeof(long) * 2 + initDataByteCount);
- atoms[1] = EndianU32_NtoB(kDataRefExtensionInitializationData);
-
- err = PtrAndHand(atoms, dataRef, sizeof(long) * 2);
- if (err) goto bail;
-
- err = PtrAndHand(initDataPtr, dataRef, initDataByteCount);
- if (err) goto bail;
- }
-
- return dataRef;
-
-bail:
- if (dataRef)
- {
- // make sure and dispose the data reference handle
- // once we are done with it
- DisposeHandle(dataRef);
- }
-
- return nil;
-}
-
-
-@end
projects / horde.git / commitdiff