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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
-
- /*
-
- Created 3/18/96 - Tim Craycroft
-
- */
-
-
- #pragma once
-
-
- #include <LView.h>
- #include "UStdBevels.h"
-
-
-
- //======================================
- class LTableHeader
- //======================================
- : public LView
- , public LBroadcaster
- {
- public:
- enum { class_ID = 'tblH' };
- enum { msg_SortedColumnChanged = 'srtC' };
- enum { kColumnStateResourceType = 'Cols' };
- typedef UInt16 ColumnIndexT;
-
- // This is the ioParam in the message broadcast
- // when the sort order is changed (msg_SortedColumnChanged).
- struct SortChange
- {
- PaneIDT sortColumnID; // pane id of header of sort column
- ColumnIndexT sortColumn; // physical sort column
- Boolean reverseSort; // was reverse sort specified ?
- };
-
- LTableHeader(LStream *inStream);
- virtual ~LTableHeader();
-
-
- // PowerPlant hooks
- virtual void FinishCreateSelf();
- virtual void DrawSelf();
- virtual void Click(SMouseDownEvent &inMouseDown);
-
- virtual void AdjustCursor( Point inPortPt,
- const EventRecord &inMacEvent);
-
- virtual void ResizeFrameBy( Int16 inWidthDelta,
- Int16 inHeightDelta,
- Boolean inRefresh);
-
- // Column info access
- inline ColumnIndexT CountColumns() const { return mColumnCount; };
- inline ColumnIndexT CountVisibleColumns() const { return mLastVisibleColumn; };
- void SetRightmostVisibleColumn(ColumnIndexT inLastDesiredColumn);
- ColumnIndexT SumOfVisibleResizableWidths() const;
- ColumnIndexT ColumnFromID(PaneIDT inPaneID) const;
- ColumnIndexT GetSortedColumn(PaneIDT& outHeaderPane) const;
- ColumnIndexT GetMinWidthOfRange(
- ColumnIndexT inFromColumn,
- ColumnIndexT inToColumn ) const;
- ColumnIndexT GetWidthOfRange(
- ColumnIndexT inFromColumn,
- ColumnIndexT inToColumn ) const;
- Boolean IsSortedBackwards() const { return mSortedBackwards; }
- Boolean IsColumnVisible(PaneIDT inID) {
- LPane *thePane = GetColumnPane(ColumnFromID(inID));
- return (thePane != nil ) ? thePane->IsVisible() : false;
- }
- virtual void SetSortedColumn(ColumnIndexT inColumn, Boolean inReverse, Boolean inRefresh=true);
- void SetWithoutSort(ColumnIndexT inColumn, Boolean inReverse ,Boolean inRefresh= true);
- virtual void SimulateClick(PaneIDT inID);
- virtual void SetSortOrder(Boolean inReverse);
- virtual bool CycleSortDirection ( ColumnIndexT & ioColumn ) ;
-
- inline PaneIDT GetColumnPaneID(ColumnIndexT inColumn) const; // returns PaneID of column's header
- SInt16 GetColumnWidth(ColumnIndexT inColumn) const; // returns column's width
- SInt16 GetColumnPosition(ColumnIndexT inColumn) const; // returns column's horiz position
- UInt16 GetHeaderWidth() const; // returns width occupied by columns
-
-
- typedef UInt32 HeaderFlags;
- enum { kHeaderCanHideColumns = 0x1 };
-
- //-----------------------------------
- typedef UInt32 ColumnFlags;
- struct SColumnData
- // All column data is stored in an array kept in a handle (resource type 'Cols')
- // This is the data we store for each column - an array element within the handle
- //-----------------------------------
- {
- PaneIDT GetPaneID() const
- {
- return paneID;
- }
- Boolean CanResize() const
- {
- return (flags & kColumnDoesNotResize) == 0;
- }
- Boolean CanResizeTo(UInt16 inNewSize) const
- {
- return CanResize()
- && (inNewSize >= kMinWidth || inNewSize > columnWidth);
- }
- Boolean CanResizeBy(SInt16 inDelta) const
- {
- return CanResize()
- && (inDelta > 0 || columnWidth + inDelta >= kMinWidth);
- }
- Boolean CanSort() const
- {
- return (flags & kColumnDoesNotSort) == 0;
- }
- Boolean HasSortIcon() const
- {
- return (flags & (kColumnDoesNotSort | kColumnSuppressSortIcon)) == 0;
- }
- Boolean CanDisplayTitle() const
- {
- return (flags & kColumnDoesNotDisplayTitle) == 0;
- }
- private:
- enum
- {
- kColumnDoesNotSort = 1<<0
- , kColumnDoesNotResize = 1<<1
- , kColumnSuppressSortIcon = 1<<2
- , kColumnDoesNotMove = 1<<3
- , kColumnDoesNotDisplayTitle = 1<<4
- };
- public:
- enum { kMinWidth = 16 };
- // ---- Data:
- public:
- PaneIDT paneID;
- SInt16 columnWidth;
- SInt16 columnPosition; // meaningless when saved/read to/from disk
- ColumnFlags flags;
- }; // ----- struct SColumnData
-
- struct SavedHeaderState
- {
- ColumnIndexT columnCount;
- ColumnIndexT lastVisibleColumn;
- ColumnIndexT sortedColumn;
- UInt16 pad;
- SColumnData columnData[1];
- };
-
- virtual void WriteColumnState(LStream * inStream);
- virtual void ReadColumnState(LStream * inStream, Boolean inMoveHeaders = true);
- SColumnData* GetColumnData(ColumnIndexT inColumn) const
- { return &(*mColumnData)[inColumn - 1]; }
-
- protected:
- // Column geometry
- ColumnIndexT FindColumn( Point inLocalPoint ) const;
- void LocateColumn( ColumnIndexT inColumn, Rect & outWhere) const;
- void InvalColumn( ColumnIndexT inColumn);
- void ComputeColumnPositions();
- virtual void PositionOneColumnHeader( ColumnIndexT inColumn, Boolean inRefresh = true);
- void PositionColumnHeaders(Boolean inRefresh = true);
- void ConvertWidthsToAbsolute();
- Boolean RedistributeSpace( ColumnIndexT inFromCol,
- ColumnIndexT inToCol,
- SInt16 inNewSpace,
- SInt16 inOldSpace);
-
- SInt16 GetFixedWidthInRange( ColumnIndexT inFromCol,
- ColumnIndexT inToCol );
-
-
- // Column resizing
- Boolean IsInHorizontalSizeArea(Point inLocalPt, ColumnIndexT& outLeftColumn);
- void TrackColumnResize(const SMouseDownEvent &inEvent, ColumnIndexT inLeftColumn);
- virtual void ComputeResizeDragRect(ColumnIndexT inLeftColumn, Rect &outDragRect);
- virtual void ResizeColumn(ColumnIndexT inLeftColumn, SInt16 inLeftColumnDelta);
-
- // Column dragging
- void TrackColumnDrag(const SMouseDownEvent & inEvent, ColumnIndexT inColumn);
- virtual void ComputeColumnDragRect(ColumnIndexT inColumn, Rect& outDragRect);
- virtual void MoveColumn(ColumnIndexT inColumn, ColumnIndexT inMoveTo);
-
-
- // Column drawing
- virtual void DrawColumnBackground(const Rect& inWhere, Boolean inSortColumn);
- virtual void RedrawColumns(ColumnIndexT inFrom, ColumnIndexT inTo);
-
- // Column hiding
- virtual void ShowHideRightmostColumn(Boolean inShow);
-
-
- // Private Column info
- //
- // These are all excellent candidates for inlines, but we'll
- // let the compiler decide...
- //
- Boolean CanColumnResize(ColumnIndexT inColumn) const;
- Boolean CanColumnSort(ColumnIndexT inColumn) const;
- Boolean ColumnHasSortIcon(ColumnIndexT inColumn) const;
- Boolean CanHideColumns() const;
-
- void CheckVisible(ColumnIndexT inIndex) const
- {
- Assert_(inIndex > 0 && inIndex <= mLastVisibleColumn);
- }
- void CheckLegal(ColumnIndexT inIndex) const
- {
- Assert_(inIndex > 0 && inIndex <= mColumnCount);
- }
- void CheckLegalHigh(ColumnIndexT inIndex) const
- {
- Assert_(inIndex >= 0 && inIndex <= mColumnCount);
- }
-
- LPane* GetColumnPane(ColumnIndexT inColumn);
-
- protected:
- enum
- {
- kColumnMargin = 2,
- kColumnHidingWidgetWidth = 15
- };
-
- HeaderFlags mHeaderFlags;
- SColumnData ** mColumnData;
- SBevelColorDesc mUnsortedBevel;
- SBevelColorDesc mSortedBevel;
-
- ColumnIndexT mColumnCount; // 1-based count of all columns
- ColumnIndexT mLastVisibleColumn; // 1-based index of rightmost visible column
- ColumnIndexT mSortedColumn; // 1-based index of sorted columns
- Boolean mSortedBackwards;
- UInt16 mReverseModifiers; // key event modifier bit-mask for reverse-sort
- SInt16 mFixedWidth; // total width occupied by visible fixed-size columns
- Int16 mColumnListResID;
-
- };
-
-
-
-
-