1 /* GSheetRow --- an abstract model of the row geometry of a
3 * Copyright (C) 2006 Free Software Foundation
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <glib/gprintf.h>
23 #include <gobject/gvaluecollector.h>
24 #include "gsheet-row-iface.h"
25 #include "gtkextra-marshal.h"
33 static guint sheet_row_signals[LAST_SIGNAL];
37 static void g_sheet_row_base_init (gpointer g_class);
41 g_sheet_row_get_type (void)
43 static GType sheet_row_type = 0;
47 static const GTypeInfo sheet_row_info =
50 sizeof (GSheetRowIface), /* class_size */
51 g_sheet_row_base_init, /* base_init */
52 NULL, /* base_finalize */
54 NULL, /* class_finalize */
55 NULL, /* class_data */
62 g_type_register_static (G_TYPE_INTERFACE, "GSheetRow",
65 g_type_interface_add_prerequisite (sheet_row_type, G_TYPE_OBJECT);
68 return sheet_row_type;
72 static GtkSheetButton default_button;
75 g_sheet_row_base_init (gpointer g_class)
77 static gboolean initialized = FALSE;
82 sheet_row_signals[ROWS_CHANGED] =
83 g_signal_new ("rows_changed",
86 G_STRUCT_OFFSET (GSheetRowIface, rows_changed),
88 gtkextra_VOID__INT_INT,
94 default_button.state = GTK_STATE_NORMAL;
95 default_button.label = NULL;
96 default_button.label_visible = TRUE;
97 default_button.child = NULL;
98 default_button.justification = GTK_JUSTIFY_FILL;
105 g_sheet_row_set_height (GSheetRow *row_geo,
106 gint row, gint size, const GtkSheet *sheet)
108 g_return_if_fail (G_IS_SHEET_ROW (row_geo));
110 if ((G_SHEET_ROW_GET_IFACE (row_geo)->set_height) )
111 (G_SHEET_ROW_GET_IFACE (row_geo)->set_height) (row_geo, row,
117 g_sheet_row_get_height (const GSheetRow *row_geo,
118 gint row, const GtkSheet *sheet)
120 g_return_val_if_fail (G_IS_SHEET_ROW (row_geo), -1);
122 g_assert (G_SHEET_ROW_GET_IFACE (row_geo)->get_height);
124 return (G_SHEET_ROW_GET_IFACE (row_geo)->get_height) (row_geo, row,
131 g_sheet_row_get_visibility(const GSheetRow *row_geo,
132 gint row, const GtkSheet *sheet)
134 g_return_val_if_fail (G_IS_SHEET_ROW (row_geo), FALSE);
136 g_assert (G_SHEET_ROW_GET_IFACE (row_geo)->get_visibility);
138 return (G_SHEET_ROW_GET_IFACE (row_geo)->get_visibility) (row_geo,
144 g_sheet_row_get_sensitivity(const GSheetRow *row_geo,
145 gint row, const GtkSheet *sheet)
147 g_return_val_if_fail (G_IS_SHEET_ROW (row_geo), FALSE);
149 g_assert (G_SHEET_ROW_GET_IFACE (row_geo)->get_sensitivity);
151 return (G_SHEET_ROW_GET_IFACE (row_geo)->get_sensitivity) (row_geo,
157 const GtkSheetButton *
158 g_sheet_row_get_button(const GSheetRow *row_geo,
159 gint row, const GtkSheet *sheet)
161 g_return_val_if_fail (G_IS_SHEET_ROW (row_geo), FALSE);
163 GSheetRowIface *iface = G_SHEET_ROW_GET_IFACE (row_geo);
165 static GtkSheetButton button ;
166 memcpy(&button, &default_button, sizeof (button));
168 if ( iface->get_button_label)
169 button.label = iface->get_button_label(row_geo, row, sheet);
176 g_sheet_row_get_row_count(const GSheetRow *geo, const GtkSheet *sheet)
178 g_return_val_if_fail (G_IS_SHEET_ROW (geo), -1);
180 g_assert ( G_SHEET_ROW_GET_IFACE (geo)->get_row_count);
182 return (G_SHEET_ROW_GET_IFACE (geo)->get_row_count) (geo, sheet);
186 * g_sheet_row_start_pixel:
187 * @geo: the row model
188 * @row: the row number
189 * @sheet: pointer to the sheet
191 * Returns the top y pixel for ROW.
192 * Instances may override this method in order to achieve time and/or memory
195 * Returns: the y coordinate of the top of the row.
199 g_sheet_row_start_pixel(const GSheetRow *geo, gint row, const GtkSheet *sheet)
201 g_return_val_if_fail (G_IS_SHEET_ROW (geo), -1);
202 g_return_val_if_fail (row >= 0, -1);
203 g_return_val_if_fail (row <
204 g_sheet_row_get_row_count(geo, sheet),-1);
207 gint start_pixel = 0;
209 if ( G_SHEET_ROW_GET_IFACE(geo)->top_ypixel)
210 return (G_SHEET_ROW_GET_IFACE(geo)->top_ypixel)(geo, row, sheet);
212 for ( i = 0 ; i < row ; ++i )
214 if ( g_sheet_row_get_visibility(geo, i, sheet))
215 start_pixel += g_sheet_row_get_height(geo, i, sheet);
223 g_sheet_row_pixel_to_row(const GSheetRow *geo, gint pixel,
227 g_return_val_if_fail (G_IS_SHEET_ROW (geo), -1);
228 g_return_val_if_fail (pixel >= 0, -1) ;
230 if ( G_SHEET_ROW_GET_IFACE(geo)->pixel_to_row)
231 return (G_SHEET_ROW_GET_IFACE(geo)->pixel_to_row)(geo, pixel, s);
234 for (i = 0; i < g_sheet_row_get_row_count(geo, s); ++i )
237 pixel <= (cy + g_sheet_row_get_height(geo, i, s)) &&
238 g_sheet_row_get_visibility(geo, i, s))
241 if(g_sheet_row_get_visibility(geo, i, s))
242 cy += g_sheet_row_get_height(geo, i, s);
246 return g_sheet_row_get_row_count(geo, s) - 1;
252 g_sheet_row_rows_deleted(GSheetRow *geo,
253 gint first, gint n_rows)
255 g_return_if_fail (G_IS_SHEET_ROW (geo));
257 g_signal_emit (geo, sheet_row_signals[ROWS_CHANGED], 0,