92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#pragma once
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#include <rtl/ustring.hxx>
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#include <vcl/dllapi.h>
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#include <vector>
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// forward declaration of unit test class. Required for friend relationship.
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class IconThemeSelectorTest;
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namespace vcl {
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class IconThemeInfo;
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/** This class helps to choose an icon theme from a list of installed themes.
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*
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* The following factors influence the selection:
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* -# When high contrast mode is enabled, the high contrast icon theme is selected (if it is installed).
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* -# When a preferred theme has been set (e.g., in the gnome desktop settings), that theme is selected.
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*/
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class VCL_DLLPUBLIC IconThemeSelector {
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public:
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IconThemeSelector();
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/** Select an icon theme from the list of installed themes.
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*
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* If high contrast mode has been enabled, the highcontrast theme will be selected (if it is available).
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*
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* @pre
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* @p installedThemes must not be empty
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*/
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OUString
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SelectIconTheme(
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const std::vector<IconThemeInfo>& installedThemes,
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const OUString& theme
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) const;
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/** Select the standard icon theme for a desktop environment from a list of installed themes.
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*
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* If a preferred theme has been set, this one will take precedence.
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*
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* The same logic as in SelectIconTheme() will apply.
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*
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* @pre
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* @p installedThemes must not be empty
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*/
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OUString
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SelectIconThemeForDesktopEnvironment(
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const std::vector<IconThemeInfo>& installedThemes,
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const OUString& desktopEnvironment) const;
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void
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SetUseHighContrastTheme(bool);
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/** Returns true if the PreferredIconTheme was changed */
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bool
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SetPreferredIconTheme(const OUString&, bool bDarkIconTheme);
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bool
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operator==(const vcl::IconThemeSelector&) const = default;
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static OUString
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GetIconThemeForDesktopEnvironment(const OUString& desktopEnvironment, bool bPreferDarkIconTheme);
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private:
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/** Return the first element of the themes, or the fallback if the vector is empty */
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static OUString
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ReturnFallback(const std::vector<IconThemeInfo>& installedThemes);
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/** The name of the icon themes which are used as fallbacks */
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static constexpr OUString FALLBACK_LIGHT_ICON_THEME_ID = u"colibre"_ustr;
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static constexpr OUString FALLBACK_DARK_ICON_THEME_ID = u"colibre_dark"_ustr;
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OUString mPreferredIconTheme;
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bool mUseHighContrastTheme;
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bool mPreferDarkIconTheme;
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friend class ::IconThemeSelectorTest;
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};
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} /* namespace vcl */
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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