676 lines
16 KiB
C
676 lines
16 KiB
C
/*
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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 Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) version 3.
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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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with the program; if not, see <http://www.gnu.org/licenses/>
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*
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*
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* Authors:
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* Miguel de Icaza <miguel@ximian.com>
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* Chris Lahey <clahey@ximian.com>
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*
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* Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <gtk/gtk.h>
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#include "e-cell.h"
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G_DEFINE_TYPE (ECell, e_cell, G_TYPE_OBJECT)
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static ECellView *
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ec_new_view (ECell *ecell,
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ETableModel *table_model,
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gpointer e_table_item_view)
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{
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return NULL;
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}
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static void
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ec_realize (ECellView *e_cell)
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{
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}
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static void
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ec_kill_view (ECellView *ecell_view)
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{
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}
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static void
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ec_unrealize (ECellView *e_cell)
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{
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}
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static void
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ec_draw (ECellView *ecell_view,
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cairo_t *cr,
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gint model_col,
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gint view_col,
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gint row,
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ECellFlags flags,
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gint x1,
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gint y1,
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gint x2,
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gint y2)
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{
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g_critical ("e-cell-draw invoked");
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}
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static gint
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ec_event (ECellView *ecell_view,
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GdkEvent *event,
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gint model_col,
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gint view_col,
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gint row,
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ECellFlags flags,
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ECellActions *actions)
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{
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g_critical ("e-cell-event invoked");
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return 0;
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}
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static gint
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ec_height (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row)
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{
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g_critical ("e-cell-height invoked");
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return 0;
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}
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static void
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ec_focus (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row,
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gint x1,
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gint y1,
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gint x2,
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gint y2)
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{
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ecell_view->focus_col = view_col;
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ecell_view->focus_row = row;
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ecell_view->focus_x1 = x1;
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ecell_view->focus_y1 = y1;
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ecell_view->focus_x2 = x2;
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ecell_view->focus_y2 = y2;
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}
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static void
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ec_unfocus (ECellView *ecell_view)
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{
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ecell_view->focus_col = -1;
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ecell_view->focus_row = -1;
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ecell_view->focus_x1 = -1;
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ecell_view->focus_y1 = -1;
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ecell_view->focus_x2 = -1;
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ecell_view->focus_y2 = -1;
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}
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static gpointer
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ec_enter_edit (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row)
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{
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return NULL;
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}
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static void
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ec_leave_edit (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row,
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gpointer context)
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{
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}
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static gpointer
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ec_save_state (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row,
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gpointer context)
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{
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return NULL;
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}
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static void
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ec_load_state (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row,
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gpointer context,
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gpointer save_state)
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{
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}
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static void
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ec_free_state (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row,
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gpointer save_state)
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{
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}
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static void
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e_cell_class_init (ECellClass *class)
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{
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class->realize = ec_realize;
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class->unrealize = ec_unrealize;
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class->new_view = ec_new_view;
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class->kill_view = ec_kill_view;
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class->draw = ec_draw;
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class->event = ec_event;
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class->focus = ec_focus;
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class->unfocus = ec_unfocus;
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class->height = ec_height;
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class->enter_edit = ec_enter_edit;
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class->leave_edit = ec_leave_edit;
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class->save_state = ec_save_state;
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class->load_state = ec_load_state;
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class->free_state = ec_free_state;
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class->print = NULL;
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class->print_height = NULL;
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class->max_width = NULL;
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class->max_width_by_row = NULL;
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}
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static void
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e_cell_init (ECell *cell)
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{
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}
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/**
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* e_cell_event:
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* @ecell_view: The ECellView where the event will be dispatched
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* @event: The GdkEvent.
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* @model_col: the column in the model
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* @view_col: the column in the view
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* @row: the row
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* @flags: flags about the current state
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* @actions: a second return value in case the cell wants to take some action
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* (specifically grabbing & ungrabbing)
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*
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* Dispatches the event @event to the @ecell_view for.
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*
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* Returns: processing state from the GdkEvent handling.
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*/
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gint
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e_cell_event (ECellView *ecell_view,
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GdkEvent *event,
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gint model_col,
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gint view_col,
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gint row,
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ECellFlags flags,
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ECellActions *actions)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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return class->event (
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ecell_view, event, model_col,
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view_col, row, flags, actions);
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}
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/**
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* e_cell_new_view:
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* @ecell: the Ecell that will create the new view
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* @table_model: the table model the ecell is bound to
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* @e_table_item_view: an ETableItem object (the CanvasItem that
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* reprensents the view of the table)
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*
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* ECell renderers new to be bound to a table_model and to the actual view
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* during their life time to actually render the data. This method is invoked
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* by the ETableItem canvas item to instatiate a new view of the ECell.
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*
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* This is invoked when the ETableModel is attached to the ETableItem
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* (a CanvasItem that can render ETableModels in the screen).
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*
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* Returns: a new ECellView for this @ecell on the @table_model displayed
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* on the @e_table_item_view.
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*/
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ECellView *
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e_cell_new_view (ECell *ecell,
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ETableModel *table_model,
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gpointer e_table_item_view)
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{
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return E_CELL_GET_CLASS (ecell)->new_view (
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ecell, table_model, e_table_item_view);
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}
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/**
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* e_cell_realize:
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* @ecell_view: The ECellView to be realized.
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*
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* This function is invoked to give a chance to the ECellView to allocate
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* any resources it needs from Gdk, equivalent to the GtkWidget::realize
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* signal.
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*/
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void
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e_cell_realize (ECellView *ecell_view)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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g_return_if_fail (class->realize != NULL);
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class->realize (ecell_view);
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}
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/**
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* e_cell_kill_view:
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* @ecell_view: view to be destroyed.
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*
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* This method it used to destroy a view of an ECell renderer
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*/
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void
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e_cell_kill_view (ECellView *ecell_view)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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g_return_if_fail (class->kill_view != NULL);
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class->kill_view (ecell_view);
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}
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/**
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* e_cell_unrealize:
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* @ecell_view: The ECellView to be unrealized.
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*
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* This function is invoked to give a chance to the ECellView to
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* release any resources it allocated during the realize method,
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* equivalent to the GtkWidget::unrealize signal.
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*/
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void
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e_cell_unrealize (ECellView *ecell_view)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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g_return_if_fail (class->unrealize != NULL);
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class->unrealize (ecell_view);
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}
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/**
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* e_cell_draw:
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* @ecell_view: the ECellView to redraw
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* @cr: a Cairo context
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* @model_col: the column in the model being drawn.
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* @view_col: the column in the view being drawn (what the model maps to).
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* @row: the row being drawn
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* @flags: rendering flags.
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* @x1: boudary for the rendering
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* @y1: boudary for the rendering
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* @x2: boudary for the rendering
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* @y2: boudary for the rendering
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*
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* This instructs the ECellView to render itself into the Cairo context.
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* The region to be drawn in given by (x1,y1)-(x2,y2).
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*
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* The most important flags are %E_CELL_SELECTED and %E_CELL_FOCUSED, other
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* flags include alignments and justifications.
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*/
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void
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e_cell_draw (ECellView *ecell_view,
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cairo_t *cr,
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gint model_col,
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gint view_col,
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gint row,
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ECellFlags flags,
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gint x1,
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gint y1,
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gint x2,
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gint y2)
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{
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ECellClass *class;
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g_return_if_fail (ecell_view != NULL);
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g_return_if_fail (row >= 0);
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g_return_if_fail (row < e_table_model_row_count (ecell_view->e_table_model));
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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g_return_if_fail (class->draw != NULL);
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cairo_save (cr);
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class->draw (
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ecell_view, cr,
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model_col, view_col,
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row, flags, x1, y1, x2, y2);
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cairo_restore (cr);
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}
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/**
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* e_cell_print:
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* @ecell_view: the ECellView to redraw
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* @context: The GtkPrintContext where we output our printed data.
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* @model_col: the column in the model being drawn.
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* @view_col: the column in the view being drawn (what the model maps to).
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* @row: the row being drawn
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* @width: width
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* @height: height
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*
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* FIXME:
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*/
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void
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e_cell_print (ECellView *ecell_view,
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GtkPrintContext *context,
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gint model_col,
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gint view_col,
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gint row,
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gdouble width,
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gdouble height)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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if (class->print != NULL)
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class->print (
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ecell_view, context,
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model_col, view_col,
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row, width, height);
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}
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/**
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* e_cell_print:
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*
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* FIXME:
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*/
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gdouble
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e_cell_print_height (ECellView *ecell_view,
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GtkPrintContext *context,
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gint model_col,
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gint view_col,
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gint row,
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gdouble width)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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if (class->print_height == NULL)
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return 0.0;
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return class->print_height (
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ecell_view, context,
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model_col, view_col,
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row, width);
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}
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/**
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* e_cell_height:
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* @ecell_view: the ECellView.
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* @model_col: the column in the model
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* @view_col: the column in the view.
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* @row: the row to me measured
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*
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* Returns: the height of the cell at @model_col, @row rendered at
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* @view_col, @row.
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*/
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gint
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e_cell_height (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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g_return_val_if_fail (class->height != NULL, 0);
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return class->height (ecell_view, model_col, view_col, row);
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}
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/**
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* e_cell_enter_edit:
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* @ecell_view: the ECellView that will enter editing
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* @model_col: the column in the model
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* @view_col: the column in the view
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* @row: the row
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*
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* Notifies the ECellView that it is about to enter editing mode for
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* @model_col, @row rendered at @view_col, @row.
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*/
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gpointer
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e_cell_enter_edit (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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g_return_val_if_fail (class->enter_edit != NULL, NULL);
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return class->enter_edit (ecell_view, model_col, view_col, row);
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}
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/**
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* e_cell_leave_edit:
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* @ecell_view: the ECellView that will leave editing
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* @model_col: the column in the model
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* @view_col: the column in the view
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* @row: the row
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* @edit_context: the editing context
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*
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* Notifies the ECellView that editing is finished at @model_col, @row
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* rendered at @view_col, @row.
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*/
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void
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e_cell_leave_edit (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row,
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gpointer edit_context)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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g_return_if_fail (class->leave_edit != NULL);
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class->leave_edit (ecell_view, model_col, view_col, row, edit_context);
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}
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/**
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* e_cell_save_state:
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* @ecell_view: the ECellView to save
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* @model_col: the column in the model
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* @view_col: the column in the view
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* @row: the row
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* @edit_context: the editing context
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*
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* Returns: The save state.
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*
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* Requests that the ECellView return a gpointer representing the state
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* of the ECell. This is primarily intended for things like selection
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* or scrolling.
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*/
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gpointer
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e_cell_save_state (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row,
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gpointer edit_context)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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if (class->save_state == NULL)
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return NULL;
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return class->save_state (
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ecell_view, model_col, view_col, row, edit_context);
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}
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/**
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* e_cell_load_state:
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* @ecell_view: the ECellView to load
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* @model_col: the column in the model
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* @view_col: the column in the view
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* @row: the row
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* @edit_context: the editing context
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* @save_state: the save state to load from
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*
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* Requests that the ECellView load from the given save state.
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*/
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void
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e_cell_load_state (ECellView *ecell_view,
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gint model_col,
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gint view_col,
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gint row,
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gpointer edit_context,
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gpointer save_state)
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{
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ECellClass *class;
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class = E_CELL_GET_CLASS (ecell_view->ecell);
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if (class->load_state != NULL)
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class->load_state (
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ecell_view, model_col, view_col,
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row, edit_context, save_state);
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}
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/**
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* e_cell_free_state:
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* @ecell_view: the ECellView
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* @model_col: the column in the model
|
|
* @view_col: the column in the view
|
|
* @row: the row
|
|
* @save_state: the save state to free
|
|
*
|
|
* Requests that the ECellView free the given save state.
|
|
*/
|
|
void
|
|
e_cell_free_state (ECellView *ecell_view,
|
|
gint model_col,
|
|
gint view_col,
|
|
gint row,
|
|
gpointer save_state)
|
|
{
|
|
ECellClass *class;
|
|
|
|
class = E_CELL_GET_CLASS (ecell_view->ecell);
|
|
|
|
if (class->free_state != NULL)
|
|
class->free_state (
|
|
ecell_view, model_col, view_col, row, save_state);
|
|
}
|
|
|
|
/**
|
|
* e_cell_max_width:
|
|
* @ecell_view: the ECellView that will leave editing
|
|
* @model_col: the column in the model
|
|
* @view_col: the column in the view.
|
|
*
|
|
* Returns: the maximum width for the ECellview at @model_col which
|
|
* is being rendered as @view_col
|
|
*/
|
|
gint
|
|
e_cell_max_width (ECellView *ecell_view,
|
|
gint model_col,
|
|
gint view_col)
|
|
{
|
|
ECellClass *class;
|
|
|
|
class = E_CELL_GET_CLASS (ecell_view->ecell);
|
|
g_return_val_if_fail (class->max_width != NULL, 0);
|
|
|
|
return class->max_width (ecell_view, model_col, view_col);
|
|
}
|
|
|
|
/**
|
|
* e_cell_max_width_by_row:
|
|
* @ecell_view: the ECellView that we are curious about
|
|
* @model_col: the column in the model
|
|
* @view_col: the column in the view.
|
|
* @row: The row in the model.
|
|
*
|
|
* Returns: the maximum width for the ECellview at @model_col which
|
|
* is being rendered as @view_col for the data in @row.
|
|
*/
|
|
gint
|
|
e_cell_max_width_by_row (ECellView *ecell_view,
|
|
gint model_col,
|
|
gint view_col,
|
|
gint row)
|
|
{
|
|
ECellClass *class;
|
|
|
|
class = E_CELL_GET_CLASS (ecell_view->ecell);
|
|
|
|
if (class->max_width_by_row == NULL)
|
|
return e_cell_max_width (ecell_view, model_col, view_col);
|
|
|
|
return class->max_width_by_row (ecell_view, model_col, view_col, row);
|
|
}
|
|
|
|
/**
|
|
* e_cell_max_width_by_row_implemented:
|
|
* @ecell_view: the ECellView that we are curious about
|
|
*
|
|
* Returns: the maximum width for the ECellview at @model_col which
|
|
* is being rendered as @view_col for the data in @row.
|
|
*/
|
|
gboolean
|
|
e_cell_max_width_by_row_implemented (ECellView *ecell_view)
|
|
{
|
|
ECellClass *class;
|
|
|
|
class = E_CELL_GET_CLASS (ecell_view->ecell);
|
|
|
|
return (class->max_width_by_row != NULL);
|
|
}
|
|
|
|
gchar *
|
|
e_cell_get_bg_color (ECellView *ecell_view,
|
|
gint row)
|
|
{
|
|
ECellClass *class;
|
|
|
|
class = E_CELL_GET_CLASS (ecell_view->ecell);
|
|
|
|
if (class->get_bg_color == NULL)
|
|
return NULL;
|
|
|
|
return class->get_bg_color (ecell_view, row);
|
|
}
|
|
|
|
void
|
|
e_cell_style_set (ECellView *ecell_view,
|
|
GtkStyle *previous_style)
|
|
{
|
|
ECellClass *class;
|
|
|
|
class = E_CELL_GET_CLASS (ecell_view->ecell);
|
|
|
|
if (class->style_set != NULL)
|
|
class->style_set (ecell_view, previous_style);
|
|
}
|
|
|