зеркало из https://github.com/mozilla/gecko-dev.git
296 строки
9.6 KiB
C++
296 строки
9.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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/*
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Created 3/18/96 - Tim Craycroft
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*/
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#pragma once
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#include <LView.h>
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#include "UStdBevels.h"
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//======================================
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class LTableHeader
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//======================================
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: public LView
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, public LBroadcaster
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{
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public:
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enum { class_ID = 'tblH' };
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enum { msg_SortedColumnChanged = 'srtC' };
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enum { kColumnStateResourceType = 'Cols' };
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typedef UInt16 ColumnIndexT;
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// This is the ioParam in the message broadcast
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// when the sort order is changed (msg_SortedColumnChanged).
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struct SortChange
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{
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PaneIDT sortColumnID; // pane id of header of sort column
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ColumnIndexT sortColumn; // physical sort column
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Boolean reverseSort; // was reverse sort specified ?
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};
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LTableHeader(LStream *inStream);
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virtual ~LTableHeader();
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// PowerPlant hooks
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virtual void FinishCreateSelf();
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virtual void DrawSelf();
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virtual void Click(SMouseDownEvent &inMouseDown);
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virtual void AdjustCursor( Point inPortPt,
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const EventRecord &inMacEvent);
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virtual void ResizeFrameBy( Int16 inWidthDelta,
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Int16 inHeightDelta,
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Boolean inRefresh);
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// Column info access
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inline ColumnIndexT CountColumns() const { return mColumnCount; };
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inline ColumnIndexT CountVisibleColumns() const { return mLastVisibleColumn; };
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void SetRightmostVisibleColumn(ColumnIndexT inLastDesiredColumn);
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ColumnIndexT SumOfVisibleResizableWidths() const;
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ColumnIndexT ColumnFromID(PaneIDT inPaneID) const;
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ColumnIndexT GetSortedColumn(PaneIDT& outHeaderPane) const;
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ColumnIndexT GetMinWidthOfRange(
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ColumnIndexT inFromColumn,
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ColumnIndexT inToColumn ) const;
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ColumnIndexT GetWidthOfRange(
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ColumnIndexT inFromColumn,
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ColumnIndexT inToColumn ) const;
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Boolean IsSortedBackwards() const { return mSortedBackwards; }
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Boolean IsColumnVisible(PaneIDT inID) {
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LPane *thePane = GetColumnPane(ColumnFromID(inID));
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return (thePane != nil ) ? thePane->IsVisible() : false;
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}
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virtual void SetSortedColumn(ColumnIndexT inColumn, Boolean inReverse, Boolean inRefresh=true);
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void SetWithoutSort(ColumnIndexT inColumn, Boolean inReverse ,Boolean inRefresh= true);
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virtual void SimulateClick(PaneIDT inID);
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virtual void SetSortOrder(Boolean inReverse);
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virtual bool CycleSortDirection ( ColumnIndexT & ioColumn ) ;
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inline PaneIDT GetColumnPaneID(ColumnIndexT inColumn) const; // returns PaneID of column's header
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SInt16 GetColumnWidth(ColumnIndexT inColumn) const; // returns column's width
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SInt16 GetColumnPosition(ColumnIndexT inColumn) const; // returns column's horiz position
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UInt16 GetHeaderWidth() const; // returns width occupied by columns
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typedef UInt32 HeaderFlags;
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enum { kHeaderCanHideColumns = 0x1 };
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//-----------------------------------
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typedef UInt32 ColumnFlags;
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struct SColumnData
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// All column data is stored in an array kept in a handle (resource type 'Cols')
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// This is the data we store for each column - an array element within the handle
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//-----------------------------------
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{
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PaneIDT GetPaneID() const
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{
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return paneID;
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}
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Boolean CanResize() const
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{
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return (flags & kColumnDoesNotResize) == 0;
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}
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Boolean CanResizeTo(UInt16 inNewSize) const
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{
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return CanResize()
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&& (inNewSize >= kMinWidth || inNewSize > columnWidth);
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}
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Boolean CanResizeBy(SInt16 inDelta) const
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{
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return CanResize()
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&& (inDelta > 0 || columnWidth + inDelta >= kMinWidth);
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}
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Boolean CanSort() const
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{
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return (flags & kColumnDoesNotSort) == 0;
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}
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Boolean HasSortIcon() const
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{
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return (flags & (kColumnDoesNotSort | kColumnSuppressSortIcon)) == 0;
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}
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Boolean CanDisplayTitle() const
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{
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return (flags & kColumnDoesNotDisplayTitle) == 0;
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}
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Boolean CanShow() const
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{
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return (flags & kColumnDoesNotShow) == 0;
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}
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private:
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enum
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{
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kColumnDoesNotSort = 1<<0
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, kColumnDoesNotResize = 1<<1
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, kColumnSuppressSortIcon = 1<<2
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, kColumnDoesNotMove = 1<<3
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, kColumnDoesNotDisplayTitle = 1<<4
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, kColumnDoesNotShow = 1<<5
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};
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public:
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enum { kMinWidth = 16 };
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// ---- Data:
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public:
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PaneIDT paneID;
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SInt16 columnWidth;
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SInt16 columnPosition; // meaningless when saved/read to/from disk
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ColumnFlags flags;
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}; // ----- struct SColumnData
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struct SavedHeaderState
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{
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ColumnIndexT columnCount;
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ColumnIndexT lastVisibleColumn;
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ColumnIndexT sortedColumn;
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UInt16 pad;
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SColumnData columnData[1];
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};
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virtual void WriteColumnState(LStream * inStream);
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virtual void ReadColumnState(LStream * inStream, Boolean inMoveHeaders = true);
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SColumnData* GetColumnData(ColumnIndexT inColumn) const
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{ return &(*mColumnData)[inColumn - 1]; }
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protected:
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// Column geometry
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ColumnIndexT FindColumn( Point inLocalPoint ) const;
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void LocateColumn( ColumnIndexT inColumn, Rect & outWhere) const;
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void InvalColumn( ColumnIndexT inColumn);
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void ComputeColumnPositions();
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virtual void PositionOneColumnHeader( ColumnIndexT inColumn, Boolean inRefresh = true);
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void PositionColumnHeaders(Boolean inRefresh = true);
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void ConvertWidthsToAbsolute();
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Boolean RedistributeSpace( ColumnIndexT inFromCol,
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ColumnIndexT inToCol,
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SInt16 inNewSpace,
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SInt16 inOldSpace);
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SInt16 GetFixedWidthInRange( ColumnIndexT inFromCol,
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ColumnIndexT inToCol );
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// Column resizing
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Boolean IsInHorizontalSizeArea(Point inLocalPt, ColumnIndexT& outLeftColumn);
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void TrackColumnResize(const SMouseDownEvent &inEvent, ColumnIndexT inLeftColumn);
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virtual void ComputeResizeDragRect(ColumnIndexT inLeftColumn, Rect &outDragRect);
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virtual void ResizeColumn(ColumnIndexT inLeftColumn, SInt16 inLeftColumnDelta);
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// Column dragging
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void TrackColumnDrag(const SMouseDownEvent & inEvent, ColumnIndexT inColumn);
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virtual void ComputeColumnDragRect(ColumnIndexT inColumn, Rect& outDragRect);
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virtual void MoveColumn(ColumnIndexT inColumn, ColumnIndexT inMoveTo);
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// Column drawing
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virtual void DrawColumnBackground(const Rect& inWhere, Boolean inSortColumn);
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virtual void RedrawColumns(ColumnIndexT inFrom, ColumnIndexT inTo);
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// Column hiding
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virtual void ShowHideRightmostColumn(Boolean inShow);
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// Private Column info
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//
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// These are all excellent candidates for inlines, but we'll
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// let the compiler decide...
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//
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Boolean CanColumnResize(ColumnIndexT inColumn) const;
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Boolean CanColumnSort(ColumnIndexT inColumn) const;
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Boolean CanColumnShow(ColumnIndexT inColumn) const;
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Boolean ColumnHasSortIcon(ColumnIndexT inColumn) const;
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Boolean CanHideColumns() const;
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#ifdef Debug_Signal
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void CheckVisible(ColumnIndexT inIndex) const
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{
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Assert_(inIndex > 0 && inIndex <= mLastVisibleColumn);
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}
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void CheckLegal(ColumnIndexT inIndex) const
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{
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Assert_(inIndex > 0 && inIndex <= mColumnCount);
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}
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void CheckLegalHigh(ColumnIndexT inIndex) const
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{
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Assert_(inIndex >= 0 && inIndex <= mColumnCount);
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}
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#else
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void CheckVisible(ColumnIndexT /*inIndex*/) const { }
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void CheckLegal(ColumnIndexT /*inIndex*/) const { }
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void CheckLegalHigh(ColumnIndexT /*inIndex*/) const { }
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#endif //Debug_Signal
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LPane* GetColumnPane(ColumnIndexT inColumn);
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protected:
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enum
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{
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kColumnMargin = 2,
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kColumnHidingWidgetWidth = 16
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};
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HeaderFlags mHeaderFlags;
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SColumnData ** mColumnData;
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SBevelColorDesc mUnsortedBevel;
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SBevelColorDesc mSortedBevel;
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ColumnIndexT mColumnCount; // 1-based count of all columns
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ColumnIndexT mLastShowableColumn; // 1-based count of cols that can show
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ColumnIndexT mLastVisibleColumn; // 1-based index of rightmost visible column
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ColumnIndexT mSortedColumn; // 1-based index of sorted columns
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Boolean mSortedBackwards;
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UInt16 mReverseModifiers; // key event modifier bit-mask for reverse-sort
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SInt16 mFixedWidth; // total width occupied by visible fixed-size columns
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Int16 mColumnListResID;
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};
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