--- /dev/null
+/* GSheetRow --- an abstract model of the row geometry of a
+ * GSheet widget.
+ * Copyright (C) 2006 Free Software Foundation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <glib.h>
+#include <glib/gprintf.h>
+#include <gobject/gvaluecollector.h>
+#include "gsheet-row-iface.h"
+#include "gtkextra-marshal.h"
+
+
+enum {
+ ROWS_CHANGED,
+ LAST_SIGNAL
+};
+
+static guint sheet_row_signals[LAST_SIGNAL];
+
+
+
+static void g_sheet_row_base_init (gpointer g_class);
+
+
+GType
+g_sheet_row_get_type (void)
+{
+ static GType sheet_row_type = 0;
+
+ if (! sheet_row_type)
+ {
+ static const GTypeInfo sheet_row_info =
+
+ {
+ sizeof (GSheetRowIface), /* class_size */
+ g_sheet_row_base_init, /* base_init */
+ NULL, /* base_finalize */
+ NULL,
+ NULL, /* class_finalize */
+ NULL, /* class_data */
+ 0,
+ 0, /* n_preallocs */
+ NULL
+ };
+
+ sheet_row_type =
+ g_type_register_static (G_TYPE_INTERFACE, "GSheetRow",
+ &sheet_row_info, 0);
+
+ g_type_interface_add_prerequisite (sheet_row_type, G_TYPE_OBJECT);
+ }
+
+ return sheet_row_type;
+}
+
+
+static GtkSheetButton default_button;
+
+static void
+g_sheet_row_base_init (gpointer g_class)
+{
+ static gboolean initialized = FALSE;
+
+ if (! initialized)
+ {
+
+ sheet_row_signals[ROWS_CHANGED] =
+ g_signal_new ("rows_changed",
+ G_TYPE_SHEET_ROW,
+ G_SIGNAL_RUN_LAST,
+ G_STRUCT_OFFSET (GSheetRowIface, rows_changed),
+ NULL, NULL,
+ gtkextra_VOID__INT_INT,
+ G_TYPE_NONE, 2,
+ G_TYPE_INT,
+ G_TYPE_INT);
+
+
+ default_button.state = GTK_STATE_NORMAL;
+ default_button.label = NULL;
+ default_button.label_visible = TRUE;
+ default_button.child = NULL;
+ default_button.justification = GTK_JUSTIFY_FILL;
+
+ initialized = TRUE;
+ }
+}
+
+void
+g_sheet_row_set_height (GSheetRow *row_geo,
+ gint row, gint size, const GtkSheet *sheet)
+{
+ g_return_if_fail (G_IS_SHEET_ROW (row_geo));
+
+ if ((G_SHEET_ROW_GET_IFACE (row_geo)->set_height) )
+ (G_SHEET_ROW_GET_IFACE (row_geo)->set_height) (row_geo, row,
+ size, sheet);
+}
+
+
+gint
+g_sheet_row_get_height (const GSheetRow *row_geo,
+ gint row, const GtkSheet *sheet)
+{
+ g_return_val_if_fail (G_IS_SHEET_ROW (row_geo), -1);
+
+ g_assert (G_SHEET_ROW_GET_IFACE (row_geo)->get_height);
+
+ return (G_SHEET_ROW_GET_IFACE (row_geo)->get_height) (row_geo, row,
+ sheet);
+}
+
+
+
+gboolean
+g_sheet_row_get_visibility(const GSheetRow *row_geo,
+ gint row, const GtkSheet *sheet)
+{
+ g_return_val_if_fail (G_IS_SHEET_ROW (row_geo), FALSE);
+
+ g_assert (G_SHEET_ROW_GET_IFACE (row_geo)->get_visibility);
+
+ return (G_SHEET_ROW_GET_IFACE (row_geo)->get_visibility) (row_geo,
+ row, sheet);
+
+}
+
+gboolean
+g_sheet_row_get_sensitivity(const GSheetRow *row_geo,
+ gint row, const GtkSheet *sheet)
+{
+ g_return_val_if_fail (G_IS_SHEET_ROW (row_geo), FALSE);
+
+ g_assert (G_SHEET_ROW_GET_IFACE (row_geo)->get_sensitivity);
+
+ return (G_SHEET_ROW_GET_IFACE (row_geo)->get_sensitivity) (row_geo,
+ row, sheet);
+
+}
+
+
+const GtkSheetButton *
+g_sheet_row_get_button(const GSheetRow *row_geo,
+ gint row, const GtkSheet *sheet)
+{
+ g_return_val_if_fail (G_IS_SHEET_ROW (row_geo), FALSE);
+
+ GSheetRowIface *iface = G_SHEET_ROW_GET_IFACE (row_geo);
+
+ static GtkSheetButton button ;
+ memcpy(&button, &default_button, sizeof (button));
+
+ if ( iface->get_button_label)
+ button.label = iface->get_button_label(row_geo, row, sheet);
+
+ return &button;
+}
+
+
+gint
+g_sheet_row_get_row_count(const GSheetRow *geo, const GtkSheet *sheet)
+{
+ g_return_val_if_fail (G_IS_SHEET_ROW (geo), -1);
+
+ g_assert ( G_SHEET_ROW_GET_IFACE (geo)->get_row_count);
+
+ return (G_SHEET_ROW_GET_IFACE (geo)->get_row_count) (geo, sheet);
+}
+
+/**
+ * g_sheet_row_start_pixel:
+ * @geo: the row model
+ * @row: the row number
+ * @sheet: pointer to the sheet
+ *
+ * Returns the top y pixel for ROW.
+ * Instances may override this method in order to achieve time and/or memory
+ * optmisation.
+ *
+ * Returns: the y coordinate of the top of the row.
+ */
+
+gint
+g_sheet_row_start_pixel(const GSheetRow *geo, gint row, const GtkSheet *sheet)
+{
+ g_return_val_if_fail (G_IS_SHEET_ROW (geo), -1);
+ g_return_val_if_fail (row >= 0, -1);
+ g_return_val_if_fail (row <
+ g_sheet_row_get_row_count(geo, sheet),-1);
+
+ gint i;
+ gint start_pixel = 0;
+
+ if ( G_SHEET_ROW_GET_IFACE(geo)->top_ypixel)
+ return (G_SHEET_ROW_GET_IFACE(geo)->top_ypixel)(geo, row, sheet);
+
+ for ( i = 0 ; i < row ; ++i )
+ {
+ if ( g_sheet_row_get_visibility(geo, i, sheet))
+ start_pixel += g_sheet_row_get_height(geo, i, sheet);
+ }
+
+ return start_pixel;
+}
+
+
+gint
+g_sheet_row_pixel_to_row(const GSheetRow *geo, gint pixel,
+ const GtkSheet *s)
+{
+ gint i, cy;
+ g_return_val_if_fail (G_IS_SHEET_ROW (geo), -1);
+ g_return_val_if_fail (pixel >= 0, -1) ;
+
+ if ( G_SHEET_ROW_GET_IFACE(geo)->pixel_to_row)
+ return (G_SHEET_ROW_GET_IFACE(geo)->pixel_to_row)(geo, pixel, s);
+
+ cy = 0;
+ for (i = 0; i < g_sheet_row_get_row_count(geo, s); ++i )
+ {
+ if (pixel >= cy &&
+ pixel <= (cy + g_sheet_row_get_height(geo, i, s)) &&
+ g_sheet_row_get_visibility(geo, i, s))
+ return i;
+
+ if(g_sheet_row_get_visibility(geo, i, s))
+ cy += g_sheet_row_get_height(geo, i, s);
+ }
+
+ /* no match */
+ return g_sheet_row_get_row_count(geo, s) - 1;
+}
+
+
+
+void
+g_sheet_row_rows_deleted(GSheetRow *geo,
+ gint first, gint n_rows)
+{
+ g_return_if_fail (G_IS_SHEET_ROW (geo));
+
+ g_signal_emit (geo, sheet_row_signals[ROWS_CHANGED], 0,
+ first, n_rows);
+}
projects / pspp-builds.git / blobdiff