Differential D17493 Diff 47361 kcms/fonts/menupreview.h

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kcms/fonts/menupreview.h

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		1		/*
		2		* Copyright 2018 Max Harmathy
		3		*
		4		* This program is free software; you can redistribute it and/or modify it under
		5		* the terms of the GNU General Public License as published by the Free Software
		6		* Foundation; either version 3 of the License, or (at your option) any later
		7		* version.
		8		*
		9		* This program is distributed in the hope that it will be useful, but WITHOUT
		10		* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
		11		* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
		12		* details.
		13		*
		14		* You should have received a copy of the GNU General Public License along with
		15		* this program; if not, see <http://www.gnu.org/licenses/>.
		16		*/
		17
		18		#ifndef MENUPREVIEW_H
		19		#define MENUPREVIEW_H
		20
		21		#include "freetype-renderer.h"
		22		#include "kxftconfig.h"
		23
		24		#if defined(HAVE_FONTCONFIG)
		25
		26		#include <QButtonGroup>
		27		#include <QImage>
		28		#include <QList>
		29		#include <QPushButton>
		30		#include <QString>
		31
		32		/**
		33		* @brief The PreviewParameters is a helper class for communication between qml and
		34		* QQuickImageProvider.
		35		*/
		36		class PreviewParameters
		37		{
		38		public:
		39		QString fontFamily;
		40		double pointSize;
		41		KXftConfig* options;
		42
		43		PreviewParameters(const QString& fontFamily, double pointSize, KXftConfig* options);
		44		PreviewParameters(const PreviewParameters& value);
		45		virtual ~PreviewParameters();
		46		static PreviewParameters fromString(const QString& id);
		47		QString toFormatetString();
		48		};
		49
		50		class EntryMockup
		51		{
		52		QString label;
		53		QString iconName;
		54
		55		public:
		56		EntryMockup(const QString& label, const QString& iconName);
		57
		58		const QString& getIconName() const;
		59		const QString& getLabel() const;
		60		};
		61
		62		class MenuMockup
		63		{
		64		QList<EntryMockup> entries;
		65
		66		public:
		67		void add(const EntryMockup& item);
		68		QString getLabel(int index) const;
		69		QString getIconName(int index) const;
		70		static MenuMockup basicExample();
		71		int length() const;
		72		};
		73
		74		class MenuPreviewArea;
		75
		76		class MenuPreviewRenderer
		77		{
		78		private:
		79		FreeTypeFontPreviewRenderer renderer;
		80		const int iconSize;
		81		const int padding;
		82		const QColor background;
		83
		84		public:
		85		MenuPreviewRenderer(const QColor& background, int iconSize = 16, int padding = 2);
		86		QImage getImage(const PreviewParameters& parameters);
		87		};
		88
		89		class MenuPreviewButton : public QPushButton
		90		{
		91		Q_OBJECT
		92		private:
		93		PreviewParameters parameters;
		94		void _update();
		95
		96		public:
		97		MenuPreviewButton(const PreviewParameters& parameters, MenuPreviewArea* parent);
		98		KXftConfig::AntiAliasing::State getAntialiasing();
		99		KXftConfig::Hint::Style getHint();
		100		KXftConfig::SubPixel::Type getSubPixel();
		101		public slots:
		102		void setFont(const QString& fontFamily, double pointSize);
		103		};
		104
		105		class MenuPreviewArea : public QWidget
		106		{
		107		Q_OBJECT
		108		private:
		109		friend class MenuPreviewButton;
		110
		111		QString fontFamily;
		112		double pointSize;
		113
		114		MenuPreviewRenderer renderer;
		115		QButtonGroup group;
		116
		117		public:
		118		MenuPreviewArea(const QString& fontFamily, double pointSize, QWidget* parent = nullptr);
		119		virtual ~MenuPreviewArea();
		120
		121		public slots:
		122		void setFont(const QFont& font);
		123		void setFontFamily(const QFont& font);
		124		void setFontFamily(const QString& fontFamily);
		125		void setPointSize(double pointSize);
		126		void onSelectionChanged(QAbstractButton* button);
		127		void reset();
		128
		129		signals:
		130		void fontChanged(const QString& fontFamily, double pointSize);
		131		void selectionChanged(KXftConfig::AntiAliasing::State antiAliasing,
		132		KXftConfig::Hint::Style hint,
		133		KXftConfig::SubPixel::Type subPixel);
		134		};
		135
		136		#endif // defined(HAVE_FONTCONFIG)
		137
		138		#endif // MENUPREVIEW_H