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Diffstat (limited to 'kolourpaint/kpdocumentsaveoptions.h')
-rw-r--r-- | kolourpaint/kpdocumentsaveoptions.h | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/kolourpaint/kpdocumentsaveoptions.h b/kolourpaint/kpdocumentsaveoptions.h new file mode 100644 index 00000000..0d77ec2c --- /dev/null +++ b/kolourpaint/kpdocumentsaveoptions.h @@ -0,0 +1,150 @@ + +/* + Copyright (c) 2003,2004,2005 Clarence Dang <[email protected]> + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. 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. + + THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. +*/ + + +#ifndef KP_DOCUMENT_SAVE_OPTIONS_H +#define KP_DOCUMENT_SAVE_OPTIONS_H + + +class QPixmap; +class QString; + +class KConfigBase; + + +class kpDocumentSaveOptions +{ +public: + kpDocumentSaveOptions (); + kpDocumentSaveOptions (const kpDocumentSaveOptions &rhs); + kpDocumentSaveOptions (QString mimeType, int colorDepth, bool dither, int quality); + virtual ~kpDocumentSaveOptions (); + + bool operator== (const kpDocumentSaveOptions &rhs) const; + bool operator!= (const kpDocumentSaveOptions &rhs) const; + + kpDocumentSaveOptions &operator= (const kpDocumentSaveOptions &rhs); + + + void printDebug (const QString &prefix) const; + + + QString mimeType () const; + void setMimeType (const QString &mimeType); + + static QString invalidMimeType (); + static bool mimeTypeIsInvalid (const QString &mimeType); + bool mimeTypeIsInvalid () const; + + + int colorDepth () const; + void setColorDepth (int depth); + + static int invalidColorDepth (); + static bool colorDepthIsInvalid (int colorDepth); + bool colorDepthIsInvalid () const; + + + bool dither () const; + void setDither (bool dither); + + static int initialDither (); + + + int quality () const; + void setQuality (int quality); + + static int invalidQuality (); + static bool qualityIsInvalid (int quality); + bool qualityIsInvalid () const; + + + // (All assume that <config>'s group has been set) + // (None of them call KConfigBase::reparseConfig() nor KConfigBase::sync()) + + static QString defaultMimeType (KConfigBase *config); + static void saveDefaultMimeType (KConfigBase *config, const QString &mimeType); + + static int defaultColorDepth (KConfigBase *config); + static void saveDefaultColorDepth (KConfigBase *config, int colorDepth); + + static int defaultDither (KConfigBase *config); + static void saveDefaultDither (KConfigBase *config, bool dither); + + static int defaultQuality (KConfigBase *config); + static void saveDefaultQuality (KConfigBase *config, int quality); + + + static kpDocumentSaveOptions defaultDocumentSaveOptions (KConfigBase *config); + // (returns true if it encountered a difference (and saved it to <config>)) + static bool saveDefaultDifferences (KConfigBase *config, + const kpDocumentSaveOptions &oldDocInfo, + const kpDocumentSaveOptions &newDocInfo); + + +public: + // (purely for informational purposes - not enforced by this class) + static int mimeTypeMaximumColorDepth (const QString &mimeType); + int mimeTypeMaximumColorDepth () const; + + + static bool mimeTypeHasConfigurableColorDepth (const QString &mimeType); + bool mimeTypeHasConfigurableColorDepth () const; + + static bool mimeTypeHasConfigurableQuality (const QString &mimeType); + bool mimeTypeHasConfigurableQuality () const; + + + // TODO: checking for mask loss due to format e.g. BMP + enum LossyType + { + LossLess = 0, + + // mimeTypeMaximumColorDepth() < <pixmap>.depth() + MimeTypeMaximumColorDepthLow = 1, + // i.e. colorDepth() < <pixmap>.depth() || + // colorDepth() < 32 && <pixmap>.mask() + ColorDepthLow = 2, + // i.e. mimeTypeHasConfigurableQuality() + Quality = 4 + }; + + // Returns whether saving <pixmap> with these options will result in + // loss of information. Returned value is the bitwise OR of + // LossType enum possiblities. + int isLossyForSaving (const QPixmap &pixmap) const; + + +private: + // There is no need to maintain binary compatibility at this stage. + // The d-pointer is just so that you can experiment without recompiling + // the kitchen sink. + class kpDocumentSaveOptionsPrivate *d; +}; + + +#endif // KP_DOCUMENT_SAVE_OPTIONS_H |