313 lines
11 KiB
C
313 lines
11 KiB
C
/*
|
|
* table.h
|
|
*
|
|
* public interface definition for table window class.
|
|
*
|
|
* include after gutils.h and commdlg.h
|
|
*/
|
|
|
|
/*
|
|
* The table class communicates with its 'owner' window to
|
|
* get the layout info and the data to display. The owner window handle
|
|
* can be sent as the lParam in CreateWindow - if not, the parent window will
|
|
* be used.
|
|
*
|
|
* After creating the window, send it a TM_NEWID message, with a 'data id'
|
|
* as the lParam. This is any non-zero 32-bit value. The table will then call
|
|
* back to its owner window to find out how many rows/columns, then to fetch
|
|
* the name/properties of each column, and finally to get the data to display.
|
|
*
|
|
* Send TM_NEWID of 0 to close (or destroy the window) - wait for TQ_CLOSE
|
|
* (in either case) before discarding data. Send
|
|
* TM_REFRESH if data or row-count changes; send TM_NEWLAYOUT if column
|
|
* properties or nr cols change etc - this is the same as sending TM_NEWID
|
|
* except that no TQ_CLOSE happens on TM_NEWLAYOUT.
|
|
*
|
|
* TQ_SELECT is sent whenever the current selection changes. TQ_ENTER is sent
|
|
* when enter or double-click occurs.
|
|
*/
|
|
|
|
/* -------class and message names --------------------------------------*/
|
|
|
|
/* create a window of this class */
|
|
#define TableClassName "GTableClass"
|
|
|
|
|
|
/* all messages to the owner window are sent with this message.
|
|
* call RegisterWindowsMessage with this string for the message UINT.
|
|
*/
|
|
#define TableMessage "GTableQuery"
|
|
|
|
/* -------- messages to and from table class --------------------------*/
|
|
|
|
/* messages to owner window are:
|
|
* message: TableMessage
|
|
* wParam: command code (below)
|
|
* lParam: struct pointer according to code
|
|
* below is list of wParam codes & associated lParam struct
|
|
*/
|
|
#define TQ_GETSIZE 1 /* lParam: lpTableHdr */
|
|
#define TQ_GETCOLPROPS 2 /* lParam: lpColPropList */
|
|
#define TQ_GETDATA 3 /* lParam: lpCellDataList */
|
|
#define TQ_PUTDATA 4 /* lParam: lpCellDataList */
|
|
#define TQ_SELECT 5 /* lParam: lpTableSelection */
|
|
#define TQ_ENTER 6 /* lParam: lpTableSelection */
|
|
#define TQ_CLOSE 7 /* lParam: the data id to be closed */
|
|
|
|
/* optional */
|
|
#define TQ_SCROLL 8 /* lParam: the new top row nr */
|
|
#define TQ_TABS 9 /* lParam: LONG *, write tab here */
|
|
#define TQ_SHOWWHITESPACE 10 /* lParam: LONG *, write show_whitespace value here */
|
|
|
|
/* messages to Table class */
|
|
|
|
/* data, or nrows has changed wParam/lParam null*/
|
|
#define TM_REFRESH (WM_USER)
|
|
|
|
/* nr cols/props/layout has changed - wparam/lparam null */
|
|
#define TM_NEWLAYOUT (WM_USER+1)
|
|
|
|
/* close old id, and display new - wParam null, lParam has new id */
|
|
#define TM_NEWID (WM_USER+2)
|
|
|
|
/* select and show this area - wParam null, lParam is lpTableSelection */
|
|
#define TM_SELECT (WM_USER+3)
|
|
|
|
/* please print current table - wParam null, lParam either null
|
|
* or lpPrintContext.
|
|
*/
|
|
#define TM_PRINT (WM_USER+4)
|
|
|
|
/* return the top row in the window. If wParam is TRUE, then set
|
|
* lParam to be the new toprow. top row is the number of rows scrolled down
|
|
* from the top. Thus the first visible non-fixed row is toprow+fixedrows
|
|
*/
|
|
#define TM_TOPROW (WM_USER+5)
|
|
|
|
|
|
/* return the end row visible. This is the 0-based rownr of the last
|
|
* visible row in the window
|
|
*/
|
|
#define TM_ENDROW (WM_USER+6)
|
|
|
|
/* new rows have been added to the end of the table, but no other
|
|
* rows or cols or properties have been changed.
|
|
* wParam contains the new total nr of rows. lParam contains the id
|
|
* in case this has changed.
|
|
*/
|
|
#define TM_APPEND (WM_USER+7)
|
|
|
|
/*
|
|
* return the current selection - lParam is a lpTableSelection
|
|
*/
|
|
#define TM_GETSELECTION (WM_USER+8)
|
|
|
|
/*
|
|
* set the tab width - wParam null, lParam is new tab width
|
|
*/
|
|
#define TM_SETTABWIDTH (WM_USER+9)
|
|
|
|
/*-----display properties -------------------------------------------------*/
|
|
|
|
/*
|
|
* display properties struct. can be set for whole table, for
|
|
* each column, or for each cell. When looking for
|
|
* a property, we search cell->column->table
|
|
*/
|
|
typedef struct {
|
|
UINT valid; /* flags (below) for what props we set */
|
|
|
|
/* remaining fields only valid when corresponding flag set in valid */
|
|
|
|
DWORD forecolour; /* RGB colour value */
|
|
DWORD forecolourws; /* ditto */
|
|
DWORD backcolour; /* ditto */
|
|
/* font to use - also set through WM_SETFONT. owner application
|
|
* is responsible for DeleteObject call when no longer used
|
|
*/
|
|
HFONT hFont; /* handle to font - caller should delete*/
|
|
UINT alignment; /* flags below */
|
|
UINT box; /* whether cell boxed (see below) */
|
|
|
|
/* width/height settings not valid at cell level - only table or col.*/
|
|
int width; /* pixel width of this cell/column */
|
|
int height; /* pixel cell height */
|
|
} Props, FAR * lpProps;
|
|
|
|
/* valid flags for fields that are changed in this Props struct */
|
|
#define P_FCOLOUR 0x01
|
|
#define P_FCOLOURWS 0x02
|
|
#define P_BCOLOUR 0x04
|
|
#define P_FONT 0x08
|
|
#define P_ALIGN 0x10
|
|
#define P_BOX 0x20
|
|
#define P_WIDTH 0x40
|
|
#define P_HEIGHT 0x80
|
|
|
|
/* box settings or-ed together */
|
|
#define P_BOXTOP 1
|
|
#define P_BOXBOTTOM 2
|
|
#define P_BOXLEFT 4
|
|
#define P_BOXRIGHT 8
|
|
#define P_BOXALL 0xF
|
|
|
|
/* alignment settings (expand later to include various tab-align settings */
|
|
#define P_LEFT 0
|
|
#define P_RIGHT 1
|
|
#define P_CENTRE 2
|
|
|
|
/* default tab width in chars */
|
|
#define TABWIDTH_DEFAULT 8
|
|
|
|
/* --- main header -------------------------------------------------------*/
|
|
|
|
/* this struct is the master information about a table. It is
|
|
* passed to the owner window with the id field filled in; fill in
|
|
* all remaining fields and return.
|
|
*/
|
|
typedef struct {
|
|
DWORD_PTR id; /* owner's data id */
|
|
|
|
/* please fill in rest: */
|
|
long nrows; /* how many rows ? TM_REFRESH to change */
|
|
int ncols; /* how many columns ? TM_NEWLAYOUT to chg */
|
|
|
|
int fixedrows; /* for headers - usually 0 or 1 */
|
|
int fixedcols; /* for hdrs - 0 or 1 normally */
|
|
BOOL fixedselectable; /* is fixed area selectable ? */
|
|
BOOL hseparator; /* is there a horz. line after fixed rows */
|
|
BOOL vseparator; /* is there a vert. line after fixed rows */
|
|
|
|
UINT selectmode; /* multiple/single selection - flags below*/
|
|
BOOL sendscroll; /* TRUE if TQ_SCROLL to be sent on scrolling*/
|
|
|
|
Props props;
|
|
} TableHdr, FAR * lpTableHdr;
|
|
|
|
/*
|
|
* selection mode;
|
|
*
|
|
* choose TM_CELL or TM_ROW, and TM_SINGLE or TM_MANY, and
|
|
* TM_SOLID or TM_FOCUS and or them together.
|
|
*
|
|
*/
|
|
#define TM_ROW 1 /* selectable items are rows */
|
|
#define TM_CELL 0 /* selectable items are cells */
|
|
|
|
#define TM_MANY 2 /* multiple selects possible */
|
|
#define TM_SINGLE 0 /* single item selectable at once only */
|
|
|
|
#define TM_SOLID 0 /* (default) use a solid black for selection*/
|
|
#define TM_FOCUS 4 /* use a dotted focus rect for selection */
|
|
|
|
|
|
/* --------- column header structs --------------------------------------*/
|
|
|
|
/*
|
|
* this struct is sent to request column width and properties -
|
|
* owner window must fill nchars and props.valid, at minimum.
|
|
*/
|
|
typedef struct {
|
|
int nchars; /* expected text width in chars */
|
|
Props props;
|
|
} ColProps, FAR * lpColProps;
|
|
|
|
|
|
/* this is a set of column requests - owner should fill each one*/
|
|
typedef struct {
|
|
DWORD_PTR id; /* caller's id for data */
|
|
int startcol; /* zero-based column nr of first request */
|
|
int ncols; /* nr of columns in this set */
|
|
lpColProps plist; /* ptr to _array_ of ColProps */
|
|
} ColPropsList, FAR * lpColPropsList;
|
|
|
|
|
|
/* --- cell data structs ---------------------------------------------*/
|
|
|
|
/* this is the per-cell data struct.
|
|
* When providing data (responding to TQ_GETDATA), fill out ptext[] and
|
|
* props as appropriate. ptext will be pre-allocated with nchars bytes of
|
|
* space. This may be larger than ColProps->nchars if the user has
|
|
* stretched this column's width on screen
|
|
*
|
|
* don't re-alloc ptext, or change flags.
|
|
*/
|
|
typedef struct {
|
|
int nchars; /* space in buffer */
|
|
LPSTR ptext; /* ptr to nchars of text space */
|
|
Props props; /* per-cell props */
|
|
DWORD flags; /* private table class flags */
|
|
LPWSTR pwzText; /* ptr to nchars of WCHAR space */
|
|
} CellData, FAR * lpCellData;
|
|
|
|
/* list of cell data structures - please fill out all of these*/
|
|
typedef struct {
|
|
DWORD_PTR id; /* caller's id for data */
|
|
long row; /* zero-based row nr to fetch */
|
|
int startcell; /* zero-based cell nr on this row */
|
|
int ncells; /* count of cells to fetch */
|
|
lpCellData plist; /* ptr to array CellData[ncells] */
|
|
} CellDataList, FAR * lpCellDataList;
|
|
|
|
|
|
/*----- current selection----------------------------------------------*/
|
|
|
|
/*
|
|
* describes the current selection - a rectangular selection area
|
|
*
|
|
* Note that if the TM_MANY selection mode is used, startrow and startcell will
|
|
* be the end-point (most recently selected end) of the selection, and
|
|
* nrows, ncells may be positive or negative. +1 and -1 both mean just the
|
|
* 1 row startrow, -2 means startrow and the one before, etc. 0 nrows means
|
|
* no valid selection.
|
|
*/
|
|
typedef struct {
|
|
DWORD_PTR id; /* caller's id for data */
|
|
long startrow; /* zero-based row nr of start of sel. */
|
|
long startcell; /* zero-based col nr of start of sel */
|
|
long nrows; /* vertical depth of selection */
|
|
long ncells; /* horz width of selection */
|
|
long dyRowsFromTop; /* -1 means used auto-center logic, otherwise put selection this many rows from top */
|
|
} TableSelection, FAR * lpTableSelection;
|
|
|
|
|
|
|
|
/*----- print context -----------------------------------------------*/
|
|
|
|
/* describes the margin settings for the print job - these are in CMs*/
|
|
typedef struct {
|
|
int left; /* edge of paper to start of print area */
|
|
int right; /* edge of paper to start of print area */
|
|
int top; /* edge of paper to start of hdr */
|
|
int bottom; /* end of hdr to end of paper */
|
|
int topinner; /* start of hdr to start of data */
|
|
int bottominner; /* end of data to start of hdr */
|
|
} Margin, FAR * lpMargin;
|
|
|
|
/* position and clipping info - only used by table class
|
|
*/
|
|
typedef struct {
|
|
int start; /* co-ord of cell start (left or top) */
|
|
int clipstart; /* start of clipping (vis area) */
|
|
int clipend; /* end of clipping (vis area) */
|
|
int size; /* pixel size of cell (width or height) */
|
|
} CellPos, FAR * lpCellPos;
|
|
|
|
|
|
/* one of these for each header lines (top and bottom) */
|
|
typedef struct {
|
|
CellPos xpos, ypos; /* private: for table-class use only */
|
|
Props props;
|
|
LPSTR ptext;
|
|
} Title, FAR * lpTitle;
|
|
|
|
/* Print context data structure - any or all 4 pointers may be null */
|
|
typedef struct {
|
|
DWORD_PTR id; /* id of table to print */
|
|
lpTitle head;
|
|
lpTitle foot;
|
|
lpMargin margin;
|
|
PRINTDLG FAR * pd;
|
|
} PrintContext, FAR * lpPrintContext;
|
|
|