svx/source/inc/StylesPreviewWindow.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #ifndef INCLUDED_SVX_SOURCE_INC_STYLES_PREVIEW_WINDOW_HXX
  21 #define INCLUDED_SVX_SOURCE_INC_STYLES_PREVIEW_WINDOW_HXX
  22
  23 #include <vcl/InterimItemWindow.hxx>
  24 #include <svl/style.hxx>
  25 #include <com/sun/star/frame/XDispatchProvider.hpp>
  26 #include <com/sun/star/frame/XFrame.hpp>
  27 #include <sfx2/sfxstatuslistener.hxx>
  28
  29 class StylesPreviewWindow_Base;
  30
  31 /// Listener for style selection
  32 class StyleStatusListener final : public SfxStatusListener
  33 {
  34     StylesPreviewWindow_Base* m_pPreviewControl;
  35
  36 public:
  37     StyleStatusListener(
  38         StylesPreviewWindow_Base* pPreviewControl,
  39         const css::uno::Reference<css::frame::XDispatchProvider>& xDispatchProvider);
  40
  41     void StateChangedAtStatusListener(SfxItemState eState, const SfxPoolItem* pState) override;
  42 };
  43
  44 /// Listener for styles creation or modification
  45 class StylePoolChangeListener final : public SfxListener
  46 {
  47     StylesPreviewWindow_Base* m_pPreviewControl;
  48     SfxStyleSheetBasePool* m_pStyleSheetPool;
  49
  50 public:
  51     StylePoolChangeListener(StylesPreviewWindow_Base* pPreviewControl);
  52     ~StylePoolChangeListener();
  53
  54     virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override;
  55 };
  56
  57 class StyleItemController
  58 {
  59     static constexpr unsigned LEFT_MARGIN = 8;
  60
  61     SfxStyleFamily m_eStyleFamily;
  62     std::pair<OUString, OUString> m_aStyleName;
  63
  64 public:
  65     StyleItemController(std::pair<OUString, OUString> aStyleName);
  66
  67     void Paint(vcl::RenderContext& rRenderContext);
  68
  69 private:
  70     void DrawEntry(vcl::RenderContext& rRenderContext);
  71     void DrawText(vcl::RenderContext& rRenderContext);
  72     void DrawHighlight(vcl::RenderContext& rRenderContext, Color aFontBack);
  73     static void DrawContentBackground(vcl::RenderContext& rRenderContext,
  74                                       const tools::Rectangle& aContentRect, const Color& aColor);
  75 };
  76
  77 class StylesListUpdateTask final : public Idle
  78 {
  79     StylesPreviewWindow_Base& m_rStylesList;
  80
  81 public:
  82     StylesListUpdateTask(StylesPreviewWindow_Base& rStylesList)
  83         : Idle("StylesListUpdateTask")
  84         , m_rStylesList(rStylesList)
  85     {
  86         SetPriority(TaskPriority::HIGH_IDLE);
  87     }
  88
  89     virtual void Invoke() override;
  90 };
  91
  92 class StylesPreviewWindow_Base
  93 {
  94     friend class StylesListUpdateTask;
  95
  96 protected:
  97     static constexpr unsigned STYLES_COUNT = 6;
  98
  99     css::uno::Reference<css::frame::XFrame> m_xFrame;
 100
 101     std::unique_ptr<weld::IconView> m_xStylesView;
 102
 103     StylesListUpdateTask m_aUpdateTask;
 104
 105     rtl::Reference<StyleStatusListener> m_xStatusListener;
 106     std::unique_ptr<StylePoolChangeListener> m_pStylePoolChangeListener;
 107
 108     std::vector<std::pair<OUString, OUString>> m_aDefaultStyles;
 109     std::vector<std::pair<OUString, OUString>> m_aAllStyles;
 110
 111     OUString m_sSelectedStyle;
 112
 113     DECL_LINK(Selected, weld::IconView&, void);
 114     DECL_LINK(DoubleClick, weld::IconView&, bool);
 115     DECL_LINK(DoCommand, const CommandEvent&, bool);
 116     DECL_LINK(GetPreviewImage, const weld::encoded_image_query&, bool);
 117
 118 public:
 119     StylesPreviewWindow_Base(weld::Builder& xBuilder,
 120                              std::vector<std::pair<OUString, OUString>>&& aDefaultStyles,
 121                              const css::uno::Reference<css::frame::XFrame>& xFrame);
 122     ~StylesPreviewWindow_Base();
 123
 124     void Select(const OUString& rStyleName);
 125     void RequestStylesListUpdate();
 126     static VclPtr<VirtualDevice> GetCachedPreview(const std::pair<OUString, OUString>& rStyle);
 127     static OString GetCachedPreviewJson(const std::pair<OUString, OUString>& rStyle);
 128
 129 private:
 130     void UpdateStylesList();
 131     void UpdateSelection();
 132     bool Command(const CommandEvent& rEvent);
 133 };
 134
 135 class StylesPreviewWindow_Impl final : public InterimItemWindow, public StylesPreviewWindow_Base
 136 {
 137 public:
 138     StylesPreviewWindow_Impl(vcl::Window* pParent,
 139                              std::vector<std::pair<OUString, OUString>>&& aDefaultStyles,
 140                              const css::uno::Reference<css::frame::XFrame>& xFrame);
 141     ~StylesPreviewWindow_Impl();
 142
 143     void dispose();
 144
 145     void SetOptimalSize();
 146 };
 147
 148 #endif
 149
 150 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */