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/* -*- 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/.
*/
#ifndef INCLUDED_SW_INC_TEXTBOXHELPER_HXX
#define INCLUDED_SW_INC_TEXTBOXHELPER_HXX
#include <map>
#include <optional>
#include <set>
#include <vector>
#include <com/sun/star/uno/Any.h>
#include <com/sun/star/uno/Type.h>
#include <com/sun/star/text/TextContentAnchorType.hpp>
#include <svx/swframetypes.hxx>
#include "swdllapi.h"
class SdrPage;
class SdrObject;
class SfxItemSet;
class SwFrameFormat;
class SwFrameFormats;
class SwFormatContent;
class SwDoc;
namespace tools
{
class Rectangle;
}
class ZSortFly;
namespace com::sun::star::drawing
{
class XShape;
}
namespace com::sun::star::text
{
class XTextFrame;
}
/**
* A TextBox is a TextFrame, that is tied to a drawinglayer shape.
*
* This class provides helper methods to create, query and maintain such
* TextBoxes.
*/
class SW_DLLPUBLIC SwTextBoxHelper
{
public:
/// Maps a draw format to a fly format.
using SavedLink = std::map<const SwFrameFormat*, const SwFrameFormat*>;
/// Maps a draw format to content.
using SavedContent = std::map<const SwFrameFormat*, SwFormatContent>;
/// Create a TextBox for a shape. If the third parameter is true,
/// the original text in the shape will be copied to the frame
/// The textbox is created for the shape given by the pObject parameter.
static void create(SwFrameFormat* pShape, SdrObject* pObject, bool bCopyText = false);
/// Sets the given textframe as textbox for the given (group member) shape.
static void set(SwFrameFormat* pShape, SdrObject* pObject,
css::uno::Reference<css::text::XTextFrame> xNew);
/// Destroy a TextBox for a shape. If the format has more textboxes
/// like group shapes, it will destroy only that textbox what belongs
/// to the given pObject shape.
static void destroy(const SwFrameFormat* pShape, const SdrObject* pObject);
/// Get interface of a shape's TextBox, if there is any.
static css::uno::Any queryInterface(const SwFrameFormat* pShape, const css::uno::Type& rType,
SdrObject* pObj);
/// Sync property of TextBox with the one of the shape.
static void syncProperty(SwFrameFormat* pShape, sal_uInt16 nWID, sal_uInt8 nMemberID,
const css::uno::Any& rValue, SdrObject* pObj = nullptr);
/// Does the same, but works on properties which lack an sw-specific WID / MemberID.
static void syncProperty(SwFrameFormat* pShape, std::u16string_view rPropertyName,
const css::uno::Any& rValue, SdrObject* pObj = nullptr);
/// Get a property of the underlying TextFrame.
static void getProperty(SwFrameFormat const* pShape, sal_uInt16 nWID, sal_uInt8 nMemberID,
css::uno::Any& rValue);
/// Get a property of the underlying TextFrame.
static css::uno::Any getProperty(SwFrameFormat const* pShape, const OUString& rPropName);
/// There are two types of enum of anchor type, so this function maps this.
static css::text::TextContentAnchorType mapAnchorType(const RndStdIds& rAnchorID);
/// Similar to syncProperty(), but used by the internal API (e.g. for UI purposes).
static void syncFlyFrameAttr(SwFrameFormat& rShape, SfxItemSet const& rSet, SdrObject* pObj);
/// Copy shape attributes to the text frame
static void updateTextBoxMargin(SdrObject* pObj);
/// Sets the surround to through for the textframe of the given shape,
/// not to interfere with the layout. Returns true on success.
static bool setWrapThrough(SwFrameFormat* pShape);
/// Sets the anchor of the associated textframe of the given shape, and
/// returns true on success.
static bool changeAnchor(SwFrameFormat* pShape, SdrObject* pObj);
/// Does the positioning for the associated textframe of the shape, and
/// returns true on success.
static bool doTextBoxPositioning(SwFrameFormat* pShape, SdrObject* pObj);
/// Returns true if the anchor different for the given shape, and the
/// associated textframe of the given shape.
/// Note: In case of AS_CHAR anchor the anchor type must be different,
/// because if not, layout breaks, but this situation also handled by
/// this function, and returns true in that case too.
static std::optional<bool> isAnchorTypeDifferent(const SwFrameFormat* pShape);
/// Sets the correct size of textframe depending on the given SdrObject.
static bool syncTextBoxSize(SwFrameFormat* pShape, SdrObject* pObj);
/// Returns true if the given shape has a valid textframe.
static bool isTextBoxShapeHasValidTextFrame(const SwFrameFormat* pShape);
// Returns true on success. Synchronize z-order of the text frame of the given textbox
// by setting it one level higher than the z-order of the shape of the textbox.
static bool DoTextBoxZOrderCorrection(SwFrameFormat* pShape, const SdrObject* pObj);
/**
* If we have an associated TextFrame, then return that.
*
* If we have more textboxes for this format (group shape), that one will be
* returned, what belongs to the pObject.
*
* @param nType Expected frame format type.
* Valid types are RES_DRAWFRMFMT and RES_FLYFRMFMT.
*
* @see isTextBox
*/
static SwFrameFormat* getOtherTextBoxFormat(const SwFrameFormat* pFormat, sal_uInt16 nType,
const SdrObject* pObject = nullptr);
/// If we have an associated TextFrame, then return that.
static SwFrameFormat*
getOtherTextBoxFormat(css::uno::Reference<css::drawing::XShape> const& xShape);
/// If we have an associated TextFrame, then return its XTextFrame.
static css::uno::Reference<css::text::XTextFrame>
getUnoTextFrame(css::uno::Reference<css::drawing::XShape> const& xShape);
/// Return the textbox rectangle of a draw shape (in twips).
static tools::Rectangle getTextRectangle(SdrObject* pShape, bool bAbsolute = true);
/**
* Is the frame format a text box?
*
* A text box consists of a coupled fly and draw format. Most times you
* just want to check for a single type, otherwise you get duplicate results.
*
* @param pFormat: Is this format have a textbox?
*
* @param nType: Expected frame format input type.
* Valid types are RES_DRAWFRMFMT and RES_FLYFRMFMT.
*
* @param pObject: If the pFormat has more textboxes than one, like
* groupshapes, the textbox what belongs to the given
* pObject will be inspected. If this parameter nullptr,
* the textbox what belongs to the pObject will only be inspected.
*/
static bool isTextBox(const SwFrameFormat* pFormat, sal_uInt16 nType,
const SdrObject* pObject = nullptr);
/// Returns true if the SdrObject has a SwTextFrame otherwise false
static bool hasTextFrame(const SdrObject* pObj);
/// Count number of shapes in the document, excluding TextBoxes.
static sal_Int32 getCount(const SwDoc& rDoc);
/// Count number of shapes on the page, excluding TextBoxes.
static sal_Int32 getCount(SdrPage const* pPage);
/// Get a shape by index, excluding TextBoxes.
///
/// @throws css::lang::IndexOutOfBoundsException
static css::uno::Any getByIndex(SdrPage const* pPage, sal_Int32 nIndex);
/// Get the order of the shape, excluding TextBoxes.
static sal_Int32 getOrdNum(const SdrObject* pObject);
/// If pTextBox is a textbox, then set rWrapThrough to the surround of its shape.
static void getShapeWrapThrough(const SwFrameFormat* pTextBox, bool& rWrapThrough);
/// Saves the current shape -> textbox links in a map, so they can be restored later.
static void saveLinks(const SwFrameFormats& rFormats,
std::map<const SwFrameFormat*, const SwFrameFormat*>& rLinks);
/// Undo the effect of saveLinks() + individual resetLink() calls.
static void restoreLinks(std::set<ZSortFly>& rOld, std::vector<SwFrameFormat*>& rNew,
SavedLink& rSavedLinks);
/// Calls the method given by pFunc with every textboxes of the group given by pFormat.
static void synchronizeGroupTextBoxProperty(bool pFunc(SwFrameFormat*, SdrObject*),
SwFrameFormat* pFormat, SdrObject* pObj);
/// Collect all textboxes of the group given by the pGoupObj Parameter. Returns with a
/// vector filled with the textboxes.
static std::vector<SwFrameFormat*> CollectTextBoxes(SdrObject* pGroupObject,
SwFrameFormat* pFormat);
};
/// Textboxes are basically textframe + shape pairs. This means one shape has one frame.
/// This is not enough for group shapes, because they have only one shape format and
/// can have many frame formats. This class provides if there is a group shape for example,
/// it can have multiple textboxes.
class SwTextBoxNode
{
// One TextBox-entry
struct SwTextBoxElement
{
// The textframe format
SwFrameFormat* m_pTextBoxFormat;
// The Draw object where the textbox belongs to
SdrObject* m_pDrawObject;
// This is for indicating if the textbox is in special case: for example during undo.
bool m_bIsActive;
};
// This vector stores the textboxes what belongs to this node
std::vector<SwTextBoxElement> m_pTextBoxes;
// This is the pointer to the shape format, which has this node
// (and the textboxes)
SwFrameFormat* m_pOwnerShapeFormat;
public:
// Not needed.
SwTextBoxNode() = delete;
// ctor
SwTextBoxNode(SwFrameFormat* pOwnerShapeFormat);
// dtor
~SwTextBoxNode();
// default copy ctor is enough
SwTextBoxNode(SwTextBoxNode&) = default;
// This method adds a textbox entry to the shape
// Parameters:
// pDrawObject: The shape what the textbox be added to.
// pNewTextBox: The newly created textbox format what will be added to the shape.
void AddTextBox(SdrObject* pDrawObject, SwFrameFormat* pNewTextBox);
// This will remove the textbox entry.
// Parameters:
// pDrawObject: The shape which have the textbox to be deleted.
void DelTextBox(const SdrObject* pDrawObject);
// This will return with the frame format of the textbox what belongs
// to the given shape (pDrawObject)
SwFrameFormat* GetTextBox(const SdrObject* pDrawObject) const;
// Is this textbox has special state, undo for example?
bool IsTextBoxActive(const SdrObject* pDrawObject) const;
// Setters for the state flag.
void SetTextBoxInactive(const SdrObject* pDrawObject);
void SetTextBoxActive(const SdrObject* pDrawObject);
// If this is a group shape, that returns true.
bool IsGroupTextBox() const;
// This returns with the shape what this class belongs to.
SwFrameFormat* GetOwnerShape() { return m_pOwnerShapeFormat; };
// This will give the current number of textboxes.
size_t GetTextBoxCount() const { return m_pTextBoxes.size(); };
// Returns with a const collection of textboxes owned by this node.
std::map<SdrObject*, SwFrameFormat*> GetAllTextBoxes() const;
};
#endif // INCLUDED_SW_INC_TEXTBOXHELPER_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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