Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 505 insertions, 0 deletions

diff --git a/include/svtools/tabbar.hxx b/include/svtools/tabbar.hxx
new file mode 100644
index 000000000..948e60b35
--- /dev/null
+++ b/include/svtools/tabbar.hxx
@@ -0,0 +1,505 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#pragma once
+
+#include <svtools/svtdllapi.h>
+#include <tools/link.hxx>
+#include <vcl/window.hxx>
+#include <o3tl/typed_flags_set.hxx>
+#include <memory>
+
+class StyleSettings;
+
+/*
+
+Allowed StylbeBits
+------------------
+
+WB_SCROLL       - The tabs can be scrolled via an extra field
+WB_MINSCROLL    - The tabs can be scrolled via 2 additional buttons
+WB_RANGESELECT  - Connected ranges can be selected
+WB_MULTISELECT  - single tabs can be selected
+WB_BORDER       - a border is drawn in the top and in the bottom
+WB_DRAG         - A StartDrag handler is called by the TabBar, if drag
+                  and drop should be started. In addition, drag and drop
+                  is activated in the TabBar with EnableDrop().
+WB_SIZEABLE     - a Split handler is called by the TabBar, if the user
+                  wants to change the width of the TabBar
+WB_STDTABBAR    - WB_BORDER
+
+
+Allowed PageBits
+-----------------
+
+Setting page bits modify the display attributes of the tab name
+
+TabBarPageBits::Blue
+                - Display tab name in light blue, used in draw for
+                  invisible layers and in calc for scenario pages
+TabBarPageBits::Italic
+                - Display tab name italic, used in draw for
+                  locked layers
+TabBarPageBits::Underline
+                - Display tab name underlined, used in draw for
+                  non-printable layers
+
+
+Handlers
+-------
+
+Select          - is called when a tab is selected or unselected
+DoubleClick     - Is called when a DoubleClick has been fired in the
+                  TabBar. Inside of the handler, GetCurPageId() returns
+                  the clicked tab or 0, if no tab has been clicked.
+ActivatePage    - Is called, if another page is activated.
+                  GetCurPageId() returns the activated page.
+DeactivatePage  - Is called, when a page is deactivated. If another page
+                  may be activated, true must be returned; if another
+                  page shall be excluded from the activation, false must
+                  be returned. GetCurPageId() returns the page to be
+                  deactivated.
+
+
+Drag and Drop
+-------------
+
+For Drag and Drop, the WinBit WB_DRAG must be set. In addition, the
+Command handler, the QueryDrop handler and the Drop handler must be overlaid.
+In doing so, the following must be implemented in the handlers:
+
+Command         - If dragging should be started in this handler,
+                  StartDrag() must be called. This method
+                  then selects the respective entry or returns
+                  false, if dragging cannot be carried out.
+
+QueryDrop       - This handler is always called by StarView, when the
+                  mouse is pulled over the window while dragging
+                  (s.a. SV documentation). In this handler, it must be
+                  determined whether a drop is possible. The drop
+                  position can be shown in TabBar using ShowDropPos().
+                  When calling, the position of the Event must be passed.
+                  If the position is at the left or right border,
+                  scrolling automatically takes place in the TabBar.
+                  This method also returns the respective drop position,
+                  which is also needed for a drop. If the window is left
+                  while dragging, the drop position can be taken back
+                  using HideDropPos(). Thus, it is also possible to handle
+                  a drag which was triggered from outside the TabBar.
+
+Drop            - In the Drop handler, the pages have to be moved, or
+                  the new pages have to be inserted. The respective
+                  drop position can be determined using ShowDropPos().
+
+The following methods are needed for Drag and Drop and must be called
+by the handlers:
+
+StartDrag       - Must be called from the Command handler. As parameters,
+                  the CommandEvent and a reference to a Region must be
+                  passed. This vcl::Region then must be passed in
+                  ExecuteDrag(), if the return value indicates that
+                  ExecuteDrag shall be carried out. If the entry is not
+                  selected, it is set as the current entry beforehand.
+                  Because of this, attention must be paid that the Select
+                  handler can be called from this method.
+
+ShowDropPos     - This method must be called by the QueryDrop handler,
+                  so that the TabBar shows where the Tabs are
+                  inserted. This method can also be used in the Drop
+                  handler, in order to determine the position at which
+                  the Tabs shall be inserted. In the method, the
+                  position of the Event must be passed. This method
+                  returns the position, at which the Tabs shall be inserted.
+
+HideDropPos     - This method takes back the DropPosition previously
+                  displayed using ShowDropPos(). This method should be
+                  called, when the window is left in the QueryDrop()
+                  handler or the drag process has been ended.
+
+The following methods can be used if the pages should be switched
+in the Drag and Drop:
+
+SwitchPage      - This method must be called by the QueryDrop handler
+                  if the page, over which the mouse pointer resides,
+                  should be switched. This method should be called
+                  each time the QueryDrop-Handler is called.
+                  Switching the page happens with a delay (500 ms) and
+                  is automatically managed by this method.
+                  The Position of the Event must be passed in the method.
+                  This method returns true if the page has been switched.
+
+EndSwitchPage   - This method resets the data for the switching of the
+                  page. This method should be called when the window
+                  is left in QueryDrop() or the drag process has been
+                  ended.
+
+IsInSwitching   - With this method, it can be queried in
+                  ActivatePage()/DeactivatePage() whether this has been
+                  caused by SwitchPage(). Thus, for example, switching
+                  can be avoided in DeactivatePage() without an error
+                  box.
+
+
+Window Resize
+--------------
+
+If the window width can be changed by the user, the WinBit WB_SIZEABLE
+must be set. In this case, the following handler must be overlaid:
+
+Split           - When this handler is called, the window should be
+                  adapted to the width that is returned by GetSplitSize().
+                  In doing so, no minimal or maximum width is taken into
+                  account. A minimal size can be queried using
+                  GetMinSize() and the maximum width must be calculated
+                  by the application itself. As only Online Resize is
+                  supported, the window width must be changed inside
+                  this handler and possibly the width of dependent windows
+                  as well. For this handler, a link can also be set using
+                  SetSplitHdl().
+
+The following methods deliver more information while Splitting:
+
+GetSplitSize()  - Returns the width of the TabBar, to which the user
+                  wants to resize the window. No minimum or maximum
+                  width is taken into account. However, a width < 5
+                  is never returned. This method only returns valid
+                  values as long as splitting is active.
+
+GetMinSize()    - With this method, a minimum window width can be
+                  queried, so that at least something of a Tab is
+                  visible. Still, the TabBar can be set more narrow
+                  then the width that this method returns.
+                  This method can also be called, when no splitting
+                  is active.
+
+
+Edit Mode
+----------
+
+The TabBar also offers the user the possibility to change the names
+in the Tabs.
+
+EnableEditMode  - With this, it can be configured that on Alt+LeftClick,
+                  StartEditMode() is automatically called by the TabBar.
+                  In the StartRenaming() handler, the renaming can still
+                  be rejected.
+StartEditMode   - With this method, the EditMode is started on a Tab.
+                  false is returned, if the EditMode is already
+                  active, the mode is rejected with StartRenaming()
+                  or no space is available for editing.
+EndEditMode     - With this method, the EditMode is ended.
+SetEditText     - With this method, the text in the AllowRenaming()
+                  handler can still be replaced by another text.
+GetEditText     - With this method, the text, which the user has typed
+                  in, can be queried in the AllowRenaming() handler.
+IsInEditMode    - This method is used to query whether the EditMode
+                  is active.
+IsEditModeCanceled      - This method can be used in the EndRenaming()
+                          handler to query whether the renaming has
+                          been canceled.
+GetEditPageId   - With this method, the tab that is being/has been
+                  renamed is queried in the Renaming handlers.
+
+StartRenaming() - This handler is called when the EditMode hast been
+                  started using StartEditMode(). GetEditPageId()
+                  can be used to query which Tab should be renamed.
+                  false should be returned if the EditMod should
+                  not be started.
+AllowRenaming() - This handler is called when the EditMode is ended
+                  (not in case of Cancel). Within this handler, it
+                  can then be tested whether the text is OK.
+                  The Tab which was renamed can be queried using
+                  GetEditPageId().
+                  One of the following values should be returned:
+                  TAB_RENAMING_YES
+                  The Tab is renamed.
+                  TAB_RENAMING_NO
+                  The Tab is not renamed, but the EditMode remains
+                  active, so that the user can adapt the name
+                  accordingly.
+                  TAB_RENAMING_CANCEL
+                  The EditMode was cancelled and the old text
+                  is restored.
+EndRenaming()   - This handler is called when the EditMode has been
+                  ended. The tab that has been renamed can be
+                  queried using GetEditPageId(). Using
+                  IsEditModeCanceled(), it can be queried whether
+                  the mode has been cancelled and the name has
+                  thus not been changed.
+
+
+Maximum Page width
+-------------------
+
+The Page width of the tabs can be limited in order to make an easier
+navigation by them possible. If then, the text cannot be displayed
+completely, it is abbreviated with "..." and the whole text is
+displayed in the Tip or in the active help (if no help text is set).
+Using EnableAutoMaxPageWidth(), it can be configured whether the
+maximum page width should be based on the currently visible width
+(which is the default). Otherwise, the maximum page width can
+also be set using SetMaxPageWidth() (in pixels) (in this case, the
+AutoMaxPageWidth is ignored).
+
+ContextMenu
+-----------
+
+If a context-sensitive PopupMenu should be displayed, the Command
+handler must be overlaid. Using GetPageId() and when passing the
+mouse position, it can be determined whether the mouse click has been
+carried out over an item resp. over which item the mouse click has
+been carried out.
+*/
+
+namespace weld {
+class Button;
+}
+
+#define WB_RANGESELECT      (WinBits(0x00200000))
+#define WB_MULTISELECT      (WinBits(0x00400000))
+#define WB_MINSCROLL        (WinBits(0x20000000))
+#define WB_INSERTTAB        (WinBits(0x40000000))
+#define WB_STDTABBAR        WB_BORDER
+
+// Page bits
+
+enum class TabBarPageBits {
+    NONE       = 0x00,
+    Blue       = 0x01,
+    Italic     = 0x02,
+    Underline  = 0x04,
+};
+namespace o3tl {
+    template<> struct typed_flags<TabBarPageBits> : is_typed_flags<TabBarPageBits, 0x07> {};
+};
+
+    // interface checks only, do not use in regular control flow
+
+#define TPB_DISPLAY_NAME_ALLFLAGS  (TabBarPageBits::Blue | TabBarPageBits::Italic | TabBarPageBits::Underline)
+
+// - TabBar-Types - used in TabBar::AllowRenaming
+
+enum TabBarAllowRenamingReturnCode {
+   TABBAR_RENAMING_NO,
+   TABBAR_RENAMING_YES,
+   TABBAR_RENAMING_CANCEL
+};
+
+class MouseEvent;
+class DataChangedEvent;
+
+struct ImplTabBarItem;
+struct TabBar_Impl;
+
+
+class SVT_DLLPUBLIC TabBar : public vcl::Window
+{
+    friend class    ImplTabSizer;
+
+private:
+    std::unique_ptr<TabBar_Impl> mpImpl;
+
+    OUString        maEditText;
+    Size            maWinSize;
+    tools::Long            mnMaxPageWidth;
+    tools::Long            mnCurMaxWidth;
+    tools::Long            mnOffX;
+    tools::Long            mnOffY;
+    tools::Long            mnLastOffX;
+    tools::Long            mnSplitSize;
+    sal_uInt64      mnSwitchTime;
+    WinBits         mnWinStyle;
+    sal_uInt16      mnCurPageId;
+    sal_uInt16      mnFirstPos;
+    sal_uInt16      mnDropPos;
+    sal_uInt16      mnSwitchId;
+    sal_uInt16      mnEditId;
+
+    bool            mbFormat : 1;
+    bool            mbFirstFormat : 1;
+    bool            mbSizeFormat : 1;
+    bool            mbAutoEditMode : 1;
+    bool            mbEditCanceled : 1;
+    bool            mbDropPos : 1;
+    bool            mbInSelect : 1;
+    bool            mbMirrored : 1;
+    bool            mbScrollAlwaysEnabled : 1;
+
+    Link<TabBar*,void>              maSelectHdl;
+    Link<TabBar*,void>              maSplitHdl;
+    Link<const CommandEvent&, void> maScrollAreaContextHdl;
+    size_t          maCurrentItemList;
+
+    using Window::ImplInit;
+    SVT_DLLPRIVATE void            ImplInit( WinBits nWinStyle );
+    SVT_DLLPRIVATE void            ImplInitSettings( bool bFont, bool bBackground );
+    SVT_DLLPRIVATE void            ImplGetColors(const StyleSettings& rStyleSettings,
+                                                 Color& rFaceColor, Color& rFaceTextColor,
+                                                 Color& rSelectColor, Color& rSelectTextColor);
+    SVT_DLLPRIVATE void            ImplShowPage( sal_uInt16 nPos );
+    SVT_DLLPRIVATE bool            ImplCalcWidth();
+    SVT_DLLPRIVATE void            ImplFormat();
+    SVT_DLLPRIVATE sal_uInt16      ImplGetLastFirstPos();
+    SVT_DLLPRIVATE void            ImplInitControls();
+    SVT_DLLPRIVATE void            ImplEnableControls();
+    SVT_DLLPRIVATE void            ImplSelect();
+    SVT_DLLPRIVATE void            ImplActivatePage();
+    SVT_DLLPRIVATE bool            ImplDeactivatePage();
+    SVT_DLLPRIVATE void            ImplPrePaint();
+    SVT_DLLPRIVATE ImplTabBarItem* ImplGetLastTabBarItem( sal_uInt16 nItemCount );
+
+    DECL_DLLPRIVATE_LINK(ImplClickHdl, weld::Button&, void);
+    DECL_DLLPRIVATE_LINK(ImplAddClickHandler, weld::Button&, void);
+    DECL_DLLPRIVATE_LINK(MousePressHdl, const MouseEvent&, bool);
+    DECL_DLLPRIVATE_LINK(ContextMenuHdl, const CommandEvent&, void);
+
+    ImplTabBarItem* seek( size_t i );
+    ImplTabBarItem* prev();
+    ImplTabBarItem* next();
+
+protected:
+    virtual void AddTabClick();
+    OUString     GetAuxiliaryText(sal_uInt16 nPageId) const; // needed in derived class LayerTabBar
+    void         SetAuxiliaryText(sal_uInt16 nPageId, const OUString& rText );
+
+public:
+    static const sal_uInt16 APPEND;
+    static const sal_uInt16 PAGE_NOT_FOUND;
+
+                    TabBar( vcl::Window* pParent, WinBits nWinStyle );
+    virtual         ~TabBar() override;
+    virtual void    dispose() override;
+
+    virtual void    MouseMove( const MouseEvent& rMEvt ) override;
+    virtual void    MouseButtonDown( const MouseEvent& rMEvt ) override;
+    virtual void    MouseButtonUp( const MouseEvent& rMEvt ) override;
+    virtual void    Paint( vcl::RenderContext& rRenderContext, const tools::Rectangle& rRect ) override;
+    virtual void    Resize() override;
+    virtual void    RequestHelp( const HelpEvent& rHEvt ) override;
+    virtual void    StateChanged( StateChangedType nStateChange ) override;
+    virtual void    DataChanged( const DataChangedEvent& rDCEvt ) override;
+    virtual bool    PreNotify( NotifyEvent& rNEvt ) override;
+
+    virtual void    Select();
+    virtual void    DoubleClick();
+    void            Split();
+    virtual void    ActivatePage();
+    virtual bool    DeactivatePage();
+    virtual bool    StartRenaming();
+    virtual TabBarAllowRenamingReturnCode    AllowRenaming();
+    virtual void    EndRenaming();
+    virtual void    Mirror();
+
+    virtual void    InsertPage( sal_uInt16 nPageId, const OUString& rText,
+                                TabBarPageBits nBits = TabBarPageBits::NONE,
+                                sal_uInt16 nPos = TabBar::APPEND );
+    void            RemovePage( sal_uInt16 nPageId );
+    void            MovePage( sal_uInt16 nPageId, sal_uInt16 nNewPos );
+
+    Color           GetTabBgColor( sal_uInt16 nPageId ) const;
+    void            SetTabBgColor( sal_uInt16 nPageId, const Color& aTabBgColor );
+
+    void            Clear();
+
+    bool            IsPageEnabled( sal_uInt16 nPageId ) const;
+
+    void            SetPageBits( sal_uInt16 nPageId, TabBarPageBits nBits );
+    TabBarPageBits  GetPageBits( sal_uInt16 nPageId ) const;
+
+    sal_uInt16      GetPageCount() const;
+    sal_uInt16      GetPageId( sal_uInt16 nPos ) const;
+    sal_uInt16      GetPagePos( sal_uInt16 nPageId ) const;
+    sal_uInt16      GetCurPagePos() const { return GetPagePos(GetCurPageId()); }
+    sal_uInt16      GetPageId( const Point& rPos ) const;
+    tools::Rectangle       GetPageRect( sal_uInt16 nPageId ) const;
+    // returns the rectangle in which page tabs are drawn
+    tools::Rectangle       GetPageArea() const;
+
+    void            SetCurPageId( sal_uInt16 nPageId );
+    sal_uInt16      GetCurPageId() const { return mnCurPageId; }
+
+    void            SetFirstPageId( sal_uInt16 nPageId );
+    void            MakeVisible( sal_uInt16 nPageId );
+
+    void            SelectPage( sal_uInt16 nPageId, bool bSelect );
+    sal_uInt16      GetSelectPageCount() const;
+    bool            IsPageSelected( sal_uInt16 nPageId ) const;
+    void            SetProtectionSymbol( sal_uInt16 nPageId, bool bProtection );
+
+    void            SetMaxPageWidth( tools::Long nMaxWidth );
+
+    void            EnableEditMode() { mbAutoEditMode = true; }
+    bool            StartEditMode( sal_uInt16 nPageId );
+    void            EndEditMode( bool bCancel = false );
+    void            SetEditText( const OUString& rText ) { maEditText = rText; }
+    const OUString& GetEditText() const { return maEditText; }
+    bool            IsInEditMode() const;
+    bool            IsEditModeCanceled() const { return mbEditCanceled; }
+    sal_uInt16      GetEditPageId() const { return mnEditId; }
+
+    /** Mirrors the entire control including position of buttons and splitter.
+        Mirroring is done relative to the current direction of the GUI.
+        @param bMirrored  sal_True = the control will draw itself RTL in LTR GUI,
+            and vice versa; sal_False = the control behaves according to the
+            current direction of the GUI. */
+    void            SetMirrored(bool bMirrored);
+    /** Returns true, if the control is set to mirrored mode (see SetMirrored()). */
+    bool            IsMirrored() const { return mbMirrored; }
+
+    /** Sets the control to LTR or RTL mode regardless of the GUI direction.
+        @param bRTL  sal_False = the control will draw from left to right;
+            sal_True = the control will draw from right to left. */
+    void            SetEffectiveRTL( bool bRTL );
+    /** Returns true, if the control draws from right to left (see SetEffectiveRTL()). */
+    bool            IsEffectiveRTL() const;
+
+    bool            StartDrag( const CommandEvent& rCEvt, vcl::Region& rRegion );
+    sal_uInt16      ShowDropPos( const Point& rPos );
+    void            HideDropPos();
+    void            SwitchPage( const Point& rPos );
+    void            EndSwitchPage();
+
+    virtual void    SetPageText( sal_uInt16 nPageId, const OUString& rText );
+    OUString        GetPageText( sal_uInt16 nPageId ) const;
+    OUString        GetHelpText( sal_uInt16 nPageId ) const;
+
+    tools::Long            GetSplitSize() const { return mnSplitSize; }
+
+    using Window::SetHelpText;
+    using Window::GetHelpText;
+    using Window::SetHelpId;
+    using Window::GetHelpId;
+
+    void            SetStyle( WinBits nStyle );
+    WinBits         GetStyle() const { return mnWinStyle; }
+
+    void            SetScrollAlwaysEnabled(bool bScrollAlwaysEnabled);
+
+    Size            CalcWindowSizePixel() const;
+
+    void            SetSelectHdl( const Link<TabBar*,void>& rLink ) { maSelectHdl = rLink; }
+    void            SetSplitHdl( const Link<TabBar*,void>& rLink ) { maSplitHdl = rLink; }
+    void            SetScrollAreaContextHdl( const Link<const CommandEvent&,void>& rLink ) { maScrollAreaContextHdl = rLink; }
+    void            SetAddButtonEnabled(bool bAddButtonEnabled);
+
+    // accessibility
+    virtual css::uno::Reference<css::accessibility::XAccessible> CreateAccessible() override;
+};
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */