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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Modifying cell contents</TITLE
><META
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CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="SEC-MODIFYINGCELLCONTENTS"
>Modifying cell contents</A
></H1
><P
>As previously stated , a cell may contain text, picture or other widgets.
GtkSheet functions can be categorized after the number of modified cells:</P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="SEC-FUNCTIONSTHATMODIFYACELL"
>Functions that modify a cell</A
></H2
><P
><I
CLASS="EMPHASIS"
> A cell text is set by:</I
> </P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>/* Set a cell text with justification */
void gtk_sheet_set_cell (GtkSheet *sheet,
gint row, gint col,
GtkJustification justification,
const gchar *text);
/* No justification is made */
void gtk_sheet_set_cell_text (GtkSheet *sheet,
gint row, gint col,
const gchar *text); </PRE
></TD
></TR
></TABLE
><P
>The text string will be strdup()ed by the gtkextra library so you may free your string after this line.
Do not free the internally allocated string !
This will be done by the library at the destruction of the sheet or when the gtk_sheet_set_cell is called again.</P
><P
>The text justification in the cell may be : GTK_JUSTIFY_LEFT, GTK_JUSTIFY_RIGHT, GTK_JUSTIFY_CENTER</P
><P
><I
CLASS="EMPHASIS"
> A cell text is read by:</I
> </P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>gchar * gtk_sheet_cell_get_text (GtkSheet *sheet, gint row, gint col);</PRE
></TD
></TR
></TABLE
><P
><SPAN
CLASS="INLINEMEDIAOBJECT"
><IMG
SRC="images/gtksheet_cell_text.jpg"></SPAN
></P
><P
><I
CLASS="EMPHASIS"
> A cell text is deleted by:</I
> </P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_sheet_cell_clear(GtkSheet *sheet, gint row, gint col); /*- delete cell contents */
void gtk_sheet_cell_delete(GGtSheet *sheet, gint row, gint col); /* - delete + remove links*/</PRE
></TD
></TR
></TABLE
><P
><I
CLASS="EMPHASIS"
> You can pack a xpm into a cell like this:</I
> </P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>GtkWidget *sheet,*bullet;
GdkPixmap *pixmap;
GdkColormap *colormap;
GdkBitmap *mask;
............
sheet=gtk_sheet_new(...);
.......
colormap = gdk_colormap_get_system();
pixmap = gdk_pixmap_colormap_create_from_xpm_d(NULL, colormap, &mask, NULL,
bullet_xpm);
bullet = gtk_pixmap_new(pixmap, mask);
gtk_sheet_attach(GTK_SHEET(sheet), bullet, 1, 1, 0,0 ,.5, .5);
........
gtk_widget_show_all (bullet);
gtk_widget_show_all (window);</PRE
></TD
></TR
></TABLE
><P
> See full example here: <A
HREF="xpm.c"
TARGET="_top"
>xpm.c</A
> </P
><P
><SPAN
CLASS="INLINEMEDIAOBJECT"
><IMG
SRC="images/gtksheet_pack_xpm.jpg"></SPAN
></P
><P
><I
CLASS="EMPHASIS"
> You can pack a combo box into a cell:</I
> </P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>GtkWidget *sheet,*combo;
GList *combo_items;
..................
combo=gtk_combo_new();
combo_items=NULL;
combo_items=g_list_append (combo_items, "NULL");
combo_items=g_list_append (combo_items, "NOT NULL");
gtk_combo_set_popdown_strings (GTK_COMBO (nul_combo), combo_items);
g_list_free(combo_items);
// From GtkExtra 1.0 the cell may be resized automatically to fit the widget
gtk_sheet_attach_default (GTK_SHEET(sheet), current_combo, row, col,0,0);</PRE
></TD
></TR
></TABLE
><P
><SPAN
CLASS="INLINEMEDIAOBJECT"
><IMG
SRC="images/gtksheet_pack_combo.jpg"></SPAN
></P
><P
>The widgets can be added to a cell using these functions.
Some of them expand/shrink cell depending of widget size ,others don't.
See the GtkSheet manual for details.</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>/* Attach widget at (row x,col y) starting at the upper left of the cell */
GtkSheetChild *gtk_sheet_put (GtkSheet *sheet, GtkWidget *widget, gint x, gint y);
void gtk_sheet_attach (GtkSheet *sheet,GtkWidget *widget,gint row, gint col,gint xoptions,gint yoptions,gint xpadding,gint ypadding);
void gtk_sheet_attach_default (GtkSheet *sheet,GtkWidget *widget,gint row, gint col);
void gtk_sheet_attach_floating (GtkSheet *sheet,GtkWidget *widget,gint row, gint col);</PRE
></TD
></TR
></TABLE
><P
><I
CLASS="EMPHASIS"
>You can set a link for each cell.</I
>
This is in fact a pointer you want to be associated to the cell.</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_sheet_link_cell(GtkSheet *sheet, gint row, gint col,gpointer link);
gpointer gtk_sheet_get_link(GtkSheet *sheet, gint row, gint col);
void gtk_sheet_remove_link(GtkSheet *sheet, gint row, gint col);</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="SEC-FUNCTIONSTHATMODIFYARANGE"
>Functions that modify a range of cells</A
></H2
><P
><I
CLASS="EMPHASIS"
>A range of cells</I
>is in fact:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>struct _GtkSheetRange
{
gint row0,col0; /* upper-left cell */
gint rowi,coli; /* lower-right cell */
};</PRE
></TD
></TR
></TABLE
><P
>Some functions operating on range of cells:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_sheet_get_visible_range (GtkSheet *sheet,GtkSheetRange *range);
void gtk_sheet_range_set_background (GtkSheet *sheet, const GtkSheetRange *range, const GdkColor *color);
void gtk_sheet_range_set_foreground (GtkSheet *sheet, const GtkSheetRange *range,const GdkColor *color);
void gtk_sheet_select_range (GtkSheet *sheet, const GtkSheetRange *range);
void gtk_sheet_unselect_range (GtkSheet *sheet);
void gtk_sheet_range_clear (GtkSheet *sheet, const GtkSheetRange *range);
void gtk_sheet_range_delete (GtkSheet *sheet, const GtkSheetRange *range);
void gtk_sheet_range_set_editable (GtkSheet *sheet, const GtkSheetRange *range, gint editable);
void gtk_sheet_range_set_visible (GtkSheet *sheet, const GtkSheetRange *range, gboolean visible);
void gtk_sheet_range_set_border (GtkSheet *sheet, const GtkSheetRange *range, gint mask, guint width, gint line_style);
void gtk_sheet_range_set_border_color GtkSheet *sheet, const GtkSheetRange *range, const GdkColor *color);</PRE
></TD
></TR
></TABLE
><P
><I
CLASS="EMPHASIS"
>Remark:</I
></P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>/* When you declare a range like this:*/
......
GtkSheetRange range;
.................
/* You must call the range functions like this : */
void gtk_sheet_range_clear (sheet, &range); </PRE
></TD
></TR
></TABLE
><P
><I
CLASS="EMPHASIS"
>Screenshot:</I
>Modifying the background color of a range.</P
><P
><SPAN
CLASS="INLINEMEDIAOBJECT"
><IMG
SRC="images/gtksheet_range_bg.jpg"></SPAN
></P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="SEC-FUNCTIONSTHATMODIFYALLCELLS"
>Functions that modify all cells from sheet</A
></H2
><P
>These functions are used if you want the cells to contain the same widget.
These are some of them:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>GtkWidget *gtk_sheet_new_with_custom_entry (guint rows, guint columns, const gchar *title,GtkType entry_type);
void gtk_sheet_set_foreground (GtkSheet *sheet,GdkColor *fg_color);
void gtk_sheet_set_background (GtkSheet *sheet,GdkColor *bg_color);</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="SEC-FUNCTIONSTHATSETROWCOLUMNS"
>Functions that set row/column titles , sheet title , etc</A
></H2
><P
><I
CLASS="EMPHASIS"
>A row/column title </I
>can be set with:</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_sheet_row_button_add_label (GtkSheet *sheet, gint row, const gchar *label);
void gtk_sheet_column_button_add_label (GtkSheet *sheet, gint row, const gchar *label); </PRE
></TD
></TR
></TABLE
><P
><I
CLASS="EMPHASIS"
>gtk_sheet_set_row_title() </I
> is used for setting an internal label associated with a row.</P
><P
><I
CLASS="EMPHASIS"
>The sheet title </I
> may be set with : </P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_sheet_set_title (GtkSheet *sheet, const gchar *title);</PRE
></TD
></TR
></TABLE
><P
><I
CLASS="EMPHASIS"
>The dimensions of the row/column titles </I
> may be set with the next functions:
These functions exist because you may want to resize the width of a column or height of a row,
unless you set the autoresize flag, which will do it automaticaly for you.</P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_sheet_set_row_titles_width(GtkSheet *sheet, guint width);
void gtk_sheet_set_column_titles_height(GtkSheet *sheet, guint height);</PRE
></TD
></TR
></TABLE
><P
><I
CLASS="EMPHASIS"
> Row/column title justification </I
> is done by: </P
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="PROGRAMLISTING"
>void gtk_sheet_set_row_titles_width(GtkSheet *sheet, guint width);
void gtk_sheet_set_column_titles_height(GtkSheet *sheet, guint height);</PRE
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