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103 lines
3.8 KiB
103 lines
3.8 KiB
#ifndef KRCOLORCACHE_H
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#define KRCOLORCACHE_H
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#include <tqobject.h>
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#include <tqdict.h>
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/*
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Design goals: Color calculation is done on one place only. Configuration through krConfig OR through local settings.
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Calculation must be fast through cacheing.
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This implementation exposes 3 classes:
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KrColorSettings: holds the color settings from krConfig, which can be changed locally
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KrColorItemType: specifies the colors to be calculated
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KrColorCache: perfomes the color calculation and caches the result. Uses KrColorSettings for the calculation
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*/
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/*
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Copies all used color settings from krConfig into a local cache on creation. It contains 3 types of properties:
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color, numeric (int) and boolean. Color properties can have string or color values. Property values can be
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changed. These changes does not go into krConfig!
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is*Valid checks, if a protery name is valid
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get*Names returns a list of all allowed property names
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set*Value overwrites a property with a new value
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get*Value retunrs the current value
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For colors teh value can be returned as text or as color. If a text representation is not a valid color,
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setColorValue(TQColor()) should be called.
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*/
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class KrColorSettings
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{
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class KrColorSettingsImpl * m_impl;
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public:
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KrColorSettings();
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KrColorSettings(const KrColorSettings &);
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~KrColorSettings();
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const KrColorSettings & operator= (const KrColorSettings &);
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static bool isColorNameValid(const TQString & settingName);
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static TQValueList<TQString> getColorNames();
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bool setColorValue(const TQString & settingName, const TQColor & color);
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TQColor getColorValue(const TQString & settingName) const;
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bool setColorTextValue(const TQString & settingName, const TQString & colorText);
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TQString getColorTextValue(const TQString & settingName) const;
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static bool isNumNameValid(const TQString & settingName);
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static TQValueList<TQString> getNumNames();
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bool setNumValue(const TQString & settingName, int value);
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int getNumValue(const TQString & settingName, int defaultValue = 0) const;
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static bool isBoolNameValid(const TQString & settingName);
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static TQValueList<TQString> getBoolNames();
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bool setBoolValue(const TQString & settingName, bool value);
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int getBoolValue(const TQString & settingName, bool defaultValue = false) const;
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};
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/*
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A colletcion of properties which describe the color group to be calculated
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*/
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class KrColorItemType
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{
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public:
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enum FileType {File, InvalidSymlink, Symlink, Directory, Executable};
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FileType m_fileType;
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bool m_alternateBackgroundColor, m_activePanel, m_currentItem, m_selectedItem;
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KrColorItemType();
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KrColorItemType(FileType type, bool alternateBackgroundColor, bool activePanel, bool currentItem, bool selectedItem);
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KrColorItemType(const KrColorItemType &);
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const KrColorItemType & operator= (const KrColorItemType &);
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};
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/*
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The color calculation. It bases on an internal KrColorSettings instance. Via setColors it can be changed.
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getColors does the color calculation. It sets the colors Base, Background, Text, HighlightedText and Highlight.
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All calculated values are cached. The cache is deleted on refreshColors and setColors, which also trigger
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colorsRefreshed. getColorCache returns a statis color cached for painting the panels. On the color cache
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setColors should NEVER be called!
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*/
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class KrColorCache : public TQObject
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{
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TQ_OBJECT
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static KrColorCache * m_instance;
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class KrColorCacheImpl * m_impl;
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KrColorCache(const KrColorCache &);
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const KrColorCache & operator= (const KrColorCache &);
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public:
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KrColorCache();
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~KrColorCache();
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static KrColorCache & getColorCache();
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void getColors(TQColorGroup & result, const KrColorItemType & type) const;
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static TQColor dimColor(const TQColor & color, int dim, const TQColor & targetColor);
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public slots:
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void refreshColors();
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void setColors(const KrColorSettings &);
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signals:
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void colorsRefreshed();
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};
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#endif
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