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add destroy method, minor doc updates
git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@721 57a11ea4-9604-0410-9ed3-97b8803252fd
This commit is contained in:
Linas Vepstas
parent
2361bccd9d
commit
0b9528673d
@ -49,12 +49,12 @@ typedef struct _PopBox {
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static void selectCB (Widget w, XtPointer cd, XtPointer cb );
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static void dropDownCB (Widget w, XtPointer cd, XtPointer cb );
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static void realizeCombo (struct _BasicCell *bcell, void *w, int width);
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static void moveCombo (struct _BasicCell *bcell, int phys_row, int phys_col);
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static void destroyCombo (struct _BasicCell *bcell);
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static void setComboValue (struct _BasicCell *bcell, const char *value);
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static const char * enterCombo (struct _BasicCell *bcell, const char *value);
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static const char * leaveCombo (struct _BasicCell *bcell, const char *value);
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static void realizeCombo (BasicCell *bcell, void *w, int width);
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static void moveCombo (BasicCell *bcell, int phys_row, int phys_col);
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static void destroyCombo (BasicCell *bcell);
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static void setComboValue (BasicCell *bcell, const char *value);
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static const char * enterCombo (BasicCell *bcell, const char *value);
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static const char * leaveCombo (BasicCell *bcell, const char *value);
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#define SET(cell,str) { \
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if ((cell)->value) free ((cell)->value); \
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@ -76,12 +76,71 @@ void xaccInitComboCell (ComboCell *cell)
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xaccInitBasicCell ( &(cell->cell));
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cell->cell.realize = realizeCombo;
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cell->cell.set_value = setComboValue;
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cell->cell.destroy = destroyCombo;
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cell->menuitems = (char **) malloc (sizeof (char *));
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cell->menuitems[0] = NULL;
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}
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/* =============================================== */
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static
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void destroyCombo (BasicCell *bcell)
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{
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ComboCell *cell;
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cell = (ComboCell *) bcell;
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/* the realize callback will be null if the cell
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* gui has been realized. Therefore, if its null,
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* destroy the gui
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*/
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if (!(cell->cell.realize)) {
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PopBox *box;
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box = (PopBox *) (cell->cell.gui_private);
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moveCombo (bcell, -1, -1);
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XtDestroyWidget (box->combobox);
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free (box);
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/* allow the widget to be created again */
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cell->cell.gui_private = NULL;
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cell->cell.realize = realizeCombo;
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cell->cell.move = NULL;
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cell->cell.enter_cell = NULL;
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cell->cell.leave_cell = NULL;
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cell->cell.destroy = NULL;
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}
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}
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/* =============================================== */
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void xaccDestroyComboCell (ComboCell *cell)
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{
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int n = 0;
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char ** arr;
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destroyCombo (&(cell->cell));
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/* free malloced memory */
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arr = cell->menuitems;
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while (arr[n]) {
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free (arr[n]);
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n ++;
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}
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free (arr);
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cell->menuitems = NULL;
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cell->cell.realize = NULL;
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cell->cell.set_value = NULL;
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xaccDestroyBasicCell ( &(cell->cell));
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}
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/* =============================================== */
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void
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xaccAddComboCellMenuItem (ComboCell *cell, char * menustr)
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{
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@ -156,7 +215,7 @@ xaccSetComboCellValue (ComboCell *cell, const char * str)
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/* =============================================== */
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static void
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setComboValue (struct _BasicCell *_cell, const char *str)
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setComboValue (BasicCell *_cell, const char *str)
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{
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ComboCell * cell = (ComboCell *) _cell;
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xaccSetComboCellValue (cell, str);
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@ -165,7 +224,7 @@ setComboValue (struct _BasicCell *_cell, const char *str)
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/* =============================================== */
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static
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void realizeCombo (struct _BasicCell *bcell, void *w, int pixel_width)
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void realizeCombo (BasicCell *bcell, void *w, int pixel_width)
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{
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ComboCell *cell;
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PopBox *box;
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@ -246,7 +305,7 @@ void realizeCombo (struct _BasicCell *bcell, void *w, int pixel_width)
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/* =============================================== */
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static
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void moveCombo (struct _BasicCell *bcell, int phys_row, int phys_col)
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void moveCombo (BasicCell *bcell, int phys_row, int phys_col)
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{
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ComboCell *cell;
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PopBox *box;
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@ -270,7 +329,7 @@ void moveCombo (struct _BasicCell *bcell, int phys_row, int phys_col)
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/* =============================================== */
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static
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const char * enterCombo (struct _BasicCell *bcell, const char *value)
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const char * enterCombo (BasicCell *bcell, const char *value)
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{
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int phys_row, phys_col;
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String choice;
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@ -327,7 +386,7 @@ const char * enterCombo (struct _BasicCell *bcell, const char *value)
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/* =============================================== */
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static
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const char * leaveCombo (struct _BasicCell *bcell, const char *value)
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const char * leaveCombo (BasicCell *bcell, const char *value)
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{
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ComboCell *cell;
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PopBox *box;
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@ -350,31 +409,6 @@ const char * leaveCombo (struct _BasicCell *bcell, const char *value)
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/* =============================================== */
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static
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void destroyCombo (struct _BasicCell *bcell)
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{
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ComboCell *cell;
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PopBox *box;
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cell = (ComboCell *) bcell;
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box = (PopBox *) (cell->cell.gui_private);
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moveCombo (bcell, -1, -1);
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XtDestroyWidget (box->combobox);
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free (box);
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/* allow the widget to be created again */
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cell->cell.gui_private = NULL;
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cell->cell.realize = realizeCombo;
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cell->cell.move = NULL;
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cell->cell.enter_cell = NULL;
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cell->cell.leave_cell = NULL;
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cell->cell.destroy = NULL;
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}
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/* =============================================== */
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static void selectCB (Widget w, XtPointer cd, XtPointer cb )
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{
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@ -3,12 +3,38 @@
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* combocell.h
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*
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* FUNCTION:
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* Implements a combobox cell
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* The ComboCell object implements a cell handler with a
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* "combination-box" pull-down menu in it.
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*
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* On output, the currently selected menu item is displayed.
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* On input, the user can select from a list in the pull-down menu,
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* or use the keyboard to slect a menu entry by typing the first
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* few menu characters.
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*
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* METHODS:
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* The xaccAddComboCellMenuItem() method can be used to add a menu
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* item to the list.
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*
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*
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* HISTORY:
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* Created Jan 1998 Linas Vepstas
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* Copyright (c) 1998 Linas Vepstas
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*/
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/********************************************************************\
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License*
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* along with this program; if not, write to the Free Software *
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. *
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\********************************************************************/
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#ifndef __XACC_COMBO_CELL_C__
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#define __XACC_COMBO_CELL_C__
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@ -22,6 +48,8 @@ typedef struct _ComboCell {
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ComboCell * xaccMallocComboCell (void);
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void xaccInitComboCell (ComboCell *);
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void xaccDestroyComboCell (ComboCell *);
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void xaccSetComboCellValue (ComboCell *, const char *);
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void xaccAddComboCellMenuItem (ComboCell *, char * menustr);
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