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-rw-r--r--e-util/e-cell-text.c2810
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diff --git a/e-util/e-cell-text.c b/e-util/e-cell-text.c
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+/*
+ * This program 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 of the License, or (at your option) version 3.
+ *
+ * This program 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 the program; if not, see <http://www.gnu.org/licenses/>
+ *
+ *
+ * Authors:
+ * Miguel de Icaza <miguel@ximian.com>
+ * Chris Lahey <clahey@ximian.com>
+ *
+ * A lot of code taken from:
+ *
+ * Text item type for GnomeCanvas widget
+ *
+ * GnomeCanvas is basically a port of the Tk toolkit's most excellent
+ * canvas widget. Tk is copyrighted by the Regents of the University
+ * of California, Sun Microsystems, and other parties.
+ *
+ * Copyright (C) 1998 The Free Software Foundation
+ *
+ * Author: Federico Mena <federico@nuclecu.unam.mx>
+ *
+ * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+#include <ctype.h>
+#include <math.h>
+#include <string.h>
+
+#include <gtk/gtk.h>
+#include <glib/gi18n.h>
+#include <gdk/gdkkeysyms.h>
+
+#include <libgnomecanvas/libgnomecanvas.h>
+
+#include "e-canvas.h"
+#include "e-cell-text.h"
+#include "e-table-item.h"
+#include "e-table.h"
+#include "e-text-event-processor-emacs-like.h"
+#include "e-text-event-processor.h"
+#include "e-text.h"
+#include "e-unicode.h"
+
+#define d(x)
+#define DO_SELECTION 1
+#define VIEW_TO_CELL(view) E_CELL_TEXT (((ECellView *)view)->ecell)
+
+#if d(!)0
+#define e_table_item_leave_edit_(x) (e_table_item_leave_edit((x)), g_print ("%s: e_table_item_leave_edit\n", __FUNCTION__))
+#else
+#define e_table_item_leave_edit_(x) (e_table_item_leave_edit((x)))
+#endif
+
+/* This defines a line of text */
+struct line {
+ gchar *text; /* Line's text UTF-8, it is a pointer into the text->text string */
+ gint length; /* Line's length in BYTES */
+ gint width; /* Line's width in pixels */
+ gint ellipsis_length; /* Length before adding ellipsis in BYTES */
+};
+
+/* Object argument IDs */
+enum {
+ PROP_0,
+
+ PROP_STRIKEOUT_COLUMN,
+ PROP_UNDERLINE_COLUMN,
+ PROP_BOLD_COLUMN,
+ PROP_COLOR_COLUMN,
+ PROP_EDITABLE,
+ PROP_BG_COLOR_COLUMN
+};
+
+enum {
+ E_SELECTION_PRIMARY,
+ E_SELECTION_CLIPBOARD
+};
+
+/* signals */
+enum {
+ TEXT_INSERTED,
+ TEXT_DELETED,
+ LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+static GdkAtom clipboard_atom = GDK_NONE;
+
+G_DEFINE_TYPE (ECellText, e_cell_text, E_TYPE_CELL)
+
+#define UTF8_ATOM gdk_atom_intern ("UTF8_STRING", FALSE)
+
+#define TEXT_PAD 4
+
+typedef struct {
+ gpointer lines; /* Text split into lines (private field) */
+ gint num_lines; /* Number of lines of text */
+ gint max_width;
+ gint ref_count;
+} ECellTextLineBreaks;
+
+typedef struct _CellEdit CellEdit;
+
+typedef struct {
+ ECellView cell_view;
+ GdkCursor *i_cursor;
+
+ GnomeCanvas *canvas;
+
+ /*
+ * During editing.
+ */
+ CellEdit *edit;
+
+ gint xofs, yofs; /* This gets added to the x
+ and y for the cell text. */
+ gdouble ellipsis_width[2]; /* The width of the ellipsis. */
+} ECellTextView;
+
+struct _CellEdit {
+
+ ECellTextView *text_view;
+
+ gint model_col, view_col, row;
+ gint cell_width;
+
+ PangoLayout *layout;
+
+ gchar *text;
+
+ gchar *old_text;
+
+ /*
+ * Where the editing is taking place
+ */
+
+ gint xofs_edit, yofs_edit; /* Offset because of editing.
+ This is negative compared
+ to the other offsets. */
+
+ /* This needs to be reworked a bit once we get line wrapping. */
+ gint selection_start; /* Start of selection - IN BYTES */
+ gint selection_end; /* End of selection - IN BYTES */
+ gboolean select_by_word; /* Current selection is by word */
+
+ /* This section is for drag scrolling and blinking cursor. */
+ /* Cursor handling. */
+ gint timeout_id; /* Current timeout id for scrolling */
+ GTimer *timer; /* Timer for blinking cursor and scrolling */
+
+ gint lastx, lasty; /* Last x and y motion events */
+ gint last_state; /* Last state */
+ gulong scroll_start; /* Starting time for scroll (microseconds) */
+
+ gint show_cursor; /* Is cursor currently shown */
+ gboolean button_down; /* Is mouse button 1 down */
+
+ ETextEventProcessor *tep; /* Text Event Processor */
+
+ gboolean has_selection; /* TRUE if we have the selection */
+
+ guint pointer_in : 1;
+ guint default_cursor_shown : 1;
+ GtkIMContext *im_context;
+ gboolean need_im_reset;
+ gboolean im_context_signals_registered;
+
+ guint16 preedit_length; /* length of preedit string, in bytes */
+ gint preedit_pos; /* position of preedit cursor */
+
+ ECellActions actions;
+};
+
+static void e_cell_text_view_command (ETextEventProcessor *tep, ETextEventProcessorCommand *command, gpointer data);
+
+static void e_cell_text_view_get_selection (CellEdit *edit, GdkAtom selection, guint32 time);
+static void e_cell_text_view_supply_selection (CellEdit *edit, guint time, GdkAtom selection, gchar *data, gint length);
+
+static void _get_tep (CellEdit *edit);
+
+static gint get_position_from_xy (CellEdit *edit, gint x, gint y);
+static gboolean _blink_scroll_timeout (gpointer data);
+
+static void e_cell_text_preedit_changed_cb (GtkIMContext *context, ECellTextView *text_view);
+static void e_cell_text_commit_cb (GtkIMContext *context, const gchar *str, ECellTextView *text_view);
+static gboolean e_cell_text_retrieve_surrounding_cb (GtkIMContext *context, ECellTextView *text_view);
+static gboolean e_cell_text_delete_surrounding_cb (GtkIMContext *context, gint offset, gint n_chars, ECellTextView *text_view);
+static void _insert (ECellTextView *text_view, const gchar *string, gint value);
+static void _delete_selection (ECellTextView *text_view);
+static PangoAttrList * build_attr_list (ECellTextView *text_view, gint row, gint text_length);
+static void update_im_cursor_location (ECellTextView *tv);
+
+static gchar *
+ect_real_get_text (ECellText *cell,
+ ETableModel *model,
+ gint col,
+ gint row)
+{
+ return e_table_model_value_at (model, col, row);
+}
+
+static void
+ect_real_free_text (ECellText *cell,
+ gchar *text)
+{
+}
+
+/* This is the default method for setting the ETableModel value based on
+ * the text in the ECellText. This simply uses the text as it is - it assumes
+ * the value in the model is a gchar *. Subclasses may parse the text into
+ * data structures to pass to the model. */
+static void
+ect_real_set_value (ECellText *cell,
+ ETableModel *model,
+ gint col,
+ gint row,
+ const gchar *text)
+{
+ e_table_model_set_value_at (model, col, row, text);
+}
+
+static void
+ect_queue_redraw (ECellTextView *text_view,
+ gint view_col,
+ gint view_row)
+{
+ e_table_item_redraw_range (
+ text_view->cell_view.e_table_item_view,
+ view_col, view_row, view_col, view_row);
+}
+
+/*
+ * Shuts down the editing process
+ */
+static void
+ect_stop_editing (ECellTextView *text_view,
+ gboolean commit)
+{
+ GdkWindow *window;
+ CellEdit *edit = text_view->edit;
+ gint row, view_col, model_col;
+ gchar *old_text, *text;
+
+ if (!edit)
+ return;
+
+ window = gtk_widget_get_window (GTK_WIDGET (text_view->canvas));
+
+ row = edit->row;
+ view_col = edit->view_col;
+ model_col = edit->model_col;
+
+ old_text = edit->old_text;
+ text = edit->text;
+ if (edit->tep)
+ g_object_unref (edit->tep);
+ if (!edit->default_cursor_shown) {
+ gdk_window_set_cursor (window, NULL);
+ edit->default_cursor_shown = TRUE;
+ }
+ if (edit->timeout_id) {
+ g_source_remove (edit->timeout_id);
+ edit->timeout_id = 0;
+ }
+ if (edit->timer) {
+ g_timer_stop (edit->timer);
+ g_timer_destroy (edit->timer);
+ edit->timer = NULL;
+ }
+
+ g_signal_handlers_disconnect_matched (
+ edit->im_context,
+ G_SIGNAL_MATCH_DATA, 0, 0,
+ NULL, NULL, text_view);
+
+ if (edit->layout)
+ g_object_unref (edit->layout);
+
+ g_free (edit);
+
+ text_view->edit = NULL;
+ if (commit) {
+ /*
+ * Accept the currently edited text. if it's the same as what's in the cell, do nothing.
+ */
+ ECellView *ecell_view = (ECellView *) text_view;
+ ECellText *ect = (ECellText *) ecell_view->ecell;
+
+ if (strcmp (old_text, text)) {
+ e_cell_text_set_value (
+ ect, ecell_view->e_table_model,
+ model_col, row, text);
+ }
+ }
+ g_free (text);
+ g_free (old_text);
+
+ ect_queue_redraw (text_view, view_col, row);
+}
+
+/*
+ * Cancels the edits
+ */
+static void
+ect_cancel_edit (ECellTextView *text_view)
+{
+ ect_stop_editing (text_view, FALSE);
+ e_table_item_leave_edit_ (text_view->cell_view.e_table_item_view);
+}
+
+/*
+ * ECell::new_view method
+ */
+static ECellView *
+ect_new_view (ECell *ecell,
+ ETableModel *table_model,
+ gpointer e_table_item_view)
+{
+ ECellTextView *text_view = g_new0 (ECellTextView, 1);
+ GnomeCanvas *canvas = GNOME_CANVAS_ITEM (e_table_item_view)->canvas;
+
+ text_view->cell_view.ecell = ecell;
+ text_view->cell_view.e_table_model = table_model;
+ text_view->cell_view.e_table_item_view = e_table_item_view;
+ text_view->cell_view.kill_view_cb = NULL;
+ text_view->cell_view.kill_view_cb_data = NULL;
+
+ text_view->canvas = canvas;
+
+ text_view->xofs = 0.0;
+ text_view->yofs = 0.0;
+
+ return (ECellView *) text_view;
+}
+
+/*
+ * ECell::kill_view method
+ */
+static void
+ect_kill_view (ECellView *ecv)
+{
+ ECellTextView *text_view = (ECellTextView *) ecv;
+
+ if (text_view->cell_view.kill_view_cb)
+ (text_view->cell_view.kill_view_cb)(ecv, text_view->cell_view.kill_view_cb_data);
+
+ if (text_view->cell_view.kill_view_cb_data)
+ g_list_free (text_view->cell_view.kill_view_cb_data);
+
+ g_free (text_view);
+}
+
+/*
+ * ECell::realize method
+ */
+static void
+ect_realize (ECellView *ecell_view)
+{
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+
+ text_view->i_cursor = gdk_cursor_new (GDK_XTERM);
+
+ if (E_CELL_CLASS (e_cell_text_parent_class)->realize)
+ (* E_CELL_CLASS (e_cell_text_parent_class)->realize) (ecell_view);
+}
+
+/*
+ * ECell::unrealize method
+ */
+static void
+ect_unrealize (ECellView *ecv)
+{
+ ECellTextView *text_view = (ECellTextView *) ecv;
+
+ if (text_view->edit) {
+ ect_cancel_edit (text_view);
+ }
+
+ g_object_unref (text_view->i_cursor);
+
+ if (E_CELL_CLASS (e_cell_text_parent_class)->unrealize)
+ (* E_CELL_CLASS (e_cell_text_parent_class)->unrealize) (ecv);
+
+}
+
+static PangoAttrList *
+build_attr_list (ECellTextView *text_view,
+ gint row,
+ gint text_length)
+{
+
+ ECellView *ecell_view = (ECellView *) text_view;
+ ECellText *ect = E_CELL_TEXT (ecell_view->ecell);
+ PangoAttrList *attrs = pango_attr_list_new ();
+ gboolean bold, strikeout, underline;
+
+ bold = ect->bold_column >= 0 &&
+ row >= 0 &&
+ e_table_model_value_at (ecell_view->e_table_model, ect->bold_column, row);
+ strikeout = ect->strikeout_column >= 0 &&
+ row >= 0 &&
+ e_table_model_value_at (ecell_view->e_table_model, ect->strikeout_column, row);
+ underline = ect->underline_column >= 0 &&
+ row >= 0 &&
+ e_table_model_value_at (ecell_view->e_table_model, ect->underline_column, row);
+
+ if (bold || strikeout || underline) {
+ if (bold) {
+ PangoAttribute *attr = pango_attr_weight_new (PANGO_WEIGHT_BOLD);
+ attr->start_index = 0;
+ attr->end_index = text_length;
+
+ pango_attr_list_insert_before (attrs, attr);
+ }
+ if (strikeout) {
+ PangoAttribute *attr = pango_attr_strikethrough_new (TRUE);
+ attr->start_index = 0;
+ attr->end_index = text_length;
+
+ pango_attr_list_insert_before (attrs, attr);
+ }
+ if (underline) {
+ PangoAttribute *attr = pango_attr_underline_new (TRUE);
+ attr->start_index = 0;
+ attr->end_index = text_length;
+
+ pango_attr_list_insert_before (attrs, attr);
+ }
+ }
+ return attrs;
+}
+
+static PangoLayout *
+layout_with_preedit (ECellTextView *text_view,
+ gint row,
+ const gchar *text,
+ gint width)
+{
+ CellEdit *edit = text_view->edit;
+ PangoAttrList *attrs;
+ PangoLayout *layout;
+ GString *tmp_string = g_string_new (NULL);
+ PangoAttrList *preedit_attrs = NULL;
+ gchar *preedit_string = NULL;
+ gint preedit_length = 0;
+ gint text_length = strlen (text);
+ gint mlen = MIN (edit->selection_start,text_length);
+
+ gtk_im_context_get_preedit_string (
+ edit->im_context,
+ &preedit_string,&preedit_attrs,
+ NULL);
+ preedit_length = edit->preedit_length = strlen (preedit_string);;
+
+ layout = edit->layout;
+
+ g_string_prepend_len (tmp_string, text,text_length);
+
+ if (preedit_length) {
+
+ /* mlen is the text_length in bytes, not chars
+ * check whether we are not inserting into
+ * the middle of a utf8 character
+ */
+
+ if (mlen < text_length) {
+ if (!g_utf8_validate (text + mlen, -1, NULL)) {
+ gchar *tc;
+ tc = g_utf8_find_next_char (text + mlen,NULL);
+ if (tc) {
+ mlen = (gint) (tc - text);
+ }
+ }
+ }
+
+ g_string_insert (tmp_string, mlen, preedit_string);
+ }
+
+ pango_layout_set_text (layout, tmp_string->str, tmp_string->len);
+
+ attrs = (PangoAttrList *) build_attr_list (text_view, row, text_length);
+
+ if (preedit_length)
+ pango_attr_list_splice (attrs, preedit_attrs, mlen, preedit_length);
+ pango_layout_set_attributes (layout, attrs);
+ g_string_free (tmp_string, TRUE);
+ if (preedit_string)
+ g_free (preedit_string);
+ if (preedit_attrs)
+ pango_attr_list_unref (preedit_attrs);
+ pango_attr_list_unref (attrs);
+
+ update_im_cursor_location (text_view);
+
+ return layout;
+}
+
+static PangoLayout *
+build_layout (ECellTextView *text_view,
+ gint row,
+ const gchar *text,
+ gint width)
+{
+ ECellView *ecell_view = (ECellView *) text_view;
+ ECellText *ect = E_CELL_TEXT (ecell_view->ecell);
+ PangoAttrList *attrs;
+ PangoLayout *layout;
+
+ layout = gtk_widget_create_pango_layout (GTK_WIDGET (((GnomeCanvasItem *) ecell_view->e_table_item_view)->canvas), text);
+
+ attrs = (PangoAttrList *) build_attr_list (text_view, row, text ? strlen (text) : 0);
+
+ pango_layout_set_attributes (layout, attrs);
+ pango_attr_list_unref (attrs);
+
+ if (text_view->edit || width <= 0)
+ return layout;
+
+ if (ect->font_name)
+ {
+ PangoFontDescription *desc = NULL, *fixed_desc = NULL;
+ gchar *fixed_family = NULL;
+ gint fixed_size = 0;
+ gboolean fixed_points = TRUE;
+
+ fixed_desc = pango_font_description_from_string (ect->font_name);
+ if (fixed_desc) {
+ fixed_family = (gchar *) pango_font_description_get_family (fixed_desc);
+ fixed_size = pango_font_description_get_size (fixed_desc);
+ fixed_points = !pango_font_description_get_size_is_absolute (fixed_desc);
+ }
+
+ desc = pango_font_description_copy (gtk_widget_get_style (GTK_WIDGET (((GnomeCanvasItem *) ecell_view->e_table_item_view)->canvas))->font_desc);
+ pango_font_description_set_family (desc, fixed_family);
+ if (fixed_points)
+ pango_font_description_set_size (desc, fixed_size);
+ else
+ pango_font_description_set_absolute_size (desc, fixed_size);
+/* pango_font_description_set_style (desc, PANGO_STYLE_OBLIQUE); */
+ pango_layout_set_font_description (layout, desc);
+ pango_font_description_free (desc);
+ pango_font_description_free (fixed_desc);
+ }
+
+ pango_layout_set_width (layout, width * PANGO_SCALE);
+ pango_layout_set_wrap (layout, PANGO_WRAP_WORD_CHAR);
+
+ pango_layout_set_ellipsize (layout, PANGO_ELLIPSIZE_END);
+ pango_layout_set_height (layout, 0);
+
+ switch (ect->justify) {
+ case GTK_JUSTIFY_RIGHT:
+ pango_layout_set_alignment (layout, PANGO_ALIGN_RIGHT);
+ break;
+ case GTK_JUSTIFY_CENTER:
+ pango_layout_set_alignment (layout, PANGO_ALIGN_CENTER);
+ break;
+ case GTK_JUSTIFY_LEFT:
+ default:
+ break;
+ }
+
+ return layout;
+}
+
+static PangoLayout *
+generate_layout (ECellTextView *text_view,
+ gint model_col,
+ gint view_col,
+ gint row,
+ gint width)
+{
+ ECellView *ecell_view = (ECellView *) text_view;
+ ECellText *ect = E_CELL_TEXT (ecell_view->ecell);
+ PangoLayout *layout;
+ CellEdit *edit = text_view->edit;
+
+ if (edit && edit->layout && edit->model_col == model_col && edit->row == row) {
+ g_object_ref (edit->layout);
+ return edit->layout;
+ }
+
+ if (row >= 0) {
+ gchar *temp = e_cell_text_get_text (ect, ecell_view->e_table_model, model_col, row);
+ layout = build_layout (text_view, row, temp ? temp : "?", width);
+ e_cell_text_free_text (ect, temp);
+ } else
+ layout = build_layout (text_view, row, "Mumbo Jumbo", width);
+
+ return layout;
+}
+
+static void
+draw_cursor (cairo_t *cr,
+ gint x1,
+ gint y1,
+ PangoRectangle rect)
+{
+ gdouble scaled_x;
+ gdouble scaled_y;
+ gdouble scaled_height;
+
+ /* Pango stores each cursor position as a zero-width rectangle. */
+ scaled_x = x1 + ((gdouble) rect.x) / PANGO_SCALE;
+ scaled_y = y1 + ((gdouble) rect.y) / PANGO_SCALE;
+ scaled_height = ((gdouble) rect.height) / PANGO_SCALE;
+
+ /* Adding 0.5 to scaled_x gives a sharp, one-pixel line. */
+ cairo_move_to (cr, scaled_x + 0.5, scaled_y);
+ cairo_line_to (cr, scaled_x + 0.5, scaled_y + scaled_height);
+ cairo_set_line_width (cr, 1);
+ cairo_stroke (cr);
+}
+
+static gboolean
+show_pango_rectangle (CellEdit *edit,
+ PangoRectangle rect)
+{
+ gint x1 = rect.x / PANGO_SCALE;
+ gint x2 = (rect.x + rect.width) / PANGO_SCALE;
+#if 0
+ gint y1 = rect.y / PANGO_SCALE;
+ gint y2 = (rect.y + rect.height) / PANGO_SCALE;
+#endif
+
+ gint new_xofs_edit = edit->xofs_edit;
+ gint new_yofs_edit = edit->yofs_edit;
+
+ if (x1 < new_xofs_edit)
+ new_xofs_edit = x1;
+ if (2 + x2 - edit->cell_width > new_xofs_edit)
+ new_xofs_edit = 2 + x2 - edit->cell_width;
+ if (new_xofs_edit < 0)
+ new_xofs_edit = 0;
+
+#if 0
+ if (y1 < new_yofs_edit)
+ new_yofs_edit = y1;
+ if (2 + y2 - edit->cell_height > new_yofs_edit)
+ new_yofs_edit = 2 + y2 - edit->cell_height;
+ if (new_yofs_edit < 0)
+ new_yofs_edit = 0;
+#endif
+
+ if (new_xofs_edit != edit->xofs_edit ||
+ new_yofs_edit != edit->yofs_edit) {
+ edit->xofs_edit = new_xofs_edit;
+ edit->yofs_edit = new_yofs_edit;
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static gint
+get_vertical_spacing (GtkWidget *canvas)
+{
+ GtkWidget *widget;
+ gint vspacing = 0;
+
+ g_return_val_if_fail (E_IS_CANVAS (canvas), 3);
+
+ /* The parent should be either an ETable or ETree. */
+ widget = gtk_widget_get_parent (canvas);
+
+ gtk_widget_style_get (widget, "vertical-spacing", &vspacing, NULL);
+
+ return vspacing;
+}
+
+/*
+ * ECell::draw method
+ */
+static void
+ect_draw (ECellView *ecell_view,
+ cairo_t *cr,
+ gint model_col,
+ gint view_col,
+ gint row,
+ ECellFlags flags,
+ gint x1,
+ gint y1,
+ gint x2,
+ gint y2)
+{
+ PangoLayout *layout;
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ ECellText *ect = E_CELL_TEXT (ecell_view->ecell);
+ CellEdit *edit = text_view->edit;
+ gboolean selected;
+ GtkWidget *canvas = GTK_WIDGET (text_view->canvas);
+ GtkStyle *style;
+ gint x_origin, y_origin, vspacing;
+
+ cairo_save (cr);
+ style = gtk_widget_get_style (canvas);
+
+ selected = flags & E_CELL_SELECTED;
+
+ if (selected) {
+ if (gtk_widget_has_focus (canvas))
+ gdk_cairo_set_source_color (cr, &style->fg[GTK_STATE_SELECTED]);
+ else
+ gdk_cairo_set_source_color (cr, &style->fg[GTK_STATE_ACTIVE]);
+ } else {
+ gdk_cairo_set_source_color (cr, &style->text[GTK_STATE_NORMAL]);
+
+ if (ect->color_column != -1) {
+ gchar *color_spec;
+ GdkColor color;
+
+ color_spec = e_table_model_value_at (
+ ecell_view->e_table_model,
+ ect->color_column, row);
+ if (color_spec && gdk_color_parse (color_spec, &color))
+ gdk_cairo_set_source_color (cr, &color);
+ }
+ }
+
+ vspacing = get_vertical_spacing (canvas);
+
+ x1 += 4;
+ y1 += vspacing;
+ x2 -= 4;
+ y2 -= vspacing;
+
+ x_origin = x1 + ect->x + text_view->xofs - (edit ? edit->xofs_edit : 0);
+ y_origin = y1 + ect->y + text_view->yofs - (edit ? edit->yofs_edit : 0);
+
+ cairo_rectangle (cr, x1, y1, x2 - x1, y2 - y1);
+ cairo_clip (cr);
+
+ layout = generate_layout (text_view, model_col, view_col, row, x2 - x1);
+
+ if (edit && edit->view_col == view_col && edit->row == row) {
+ layout = layout_with_preedit (text_view, row, edit->text ? edit->text : "?", x2 - x1);
+ }
+
+ cairo_move_to (cr, x_origin, y_origin);
+ pango_cairo_show_layout (cr, layout);
+
+ if (edit && edit->view_col == view_col && edit->row == row) {
+ if (edit->selection_start != edit->selection_end) {
+ cairo_region_t *clip_region;
+ gint indices[2];
+ GtkStateType state;
+
+ state = edit->has_selection ? GTK_STATE_SELECTED : GTK_STATE_ACTIVE;
+
+ indices[0] = MIN (edit->selection_start, edit->selection_end);
+ indices[1] = MAX (edit->selection_start, edit->selection_end);
+
+ clip_region = gdk_pango_layout_get_clip_region (
+ layout, x_origin, y_origin, indices, 1);
+ gdk_cairo_region (cr, clip_region);
+ cairo_clip (cr);
+ cairo_region_destroy (clip_region);
+
+ gdk_cairo_set_source_color (cr, &style->base[state]);
+ cairo_paint (cr);
+
+ gdk_cairo_set_source_color (cr, &style->text[state]);
+ cairo_move_to (cr, x_origin, y_origin);
+ pango_cairo_show_layout (cr, layout);
+ } else {
+ if (edit->show_cursor) {
+ PangoRectangle strong_pos, weak_pos;
+ pango_layout_get_cursor_pos (layout, edit->selection_start + edit->preedit_length, &strong_pos, &weak_pos);
+
+ draw_cursor (cr, x_origin, y_origin, strong_pos);
+ if (strong_pos.x != weak_pos.x ||
+ strong_pos.y != weak_pos.y ||
+ strong_pos.width != weak_pos.width ||
+ strong_pos.height != weak_pos.height)
+ draw_cursor (cr, x_origin, y_origin, weak_pos);
+ }
+ }
+ }
+
+ g_object_unref (layout);
+ cairo_restore (cr);
+}
+
+/*
+ * Get the background color
+ */
+static gchar *
+ect_get_bg_color (ECellView *ecell_view,
+ gint row)
+{
+ ECellText *ect = E_CELL_TEXT (ecell_view->ecell);
+ gchar *color_spec;
+
+ if (ect->bg_color_column == -1)
+ return NULL;
+
+ color_spec = e_table_model_value_at (
+ ecell_view->e_table_model,
+ ect->bg_color_column, row);
+
+ return color_spec;
+}
+
+/*
+ * Selects the entire string
+ */
+
+static void
+ect_edit_select_all (ECellTextView *text_view)
+{
+ g_return_if_fail (text_view->edit);
+
+ text_view->edit->selection_start = 0;
+ text_view->edit->selection_end = strlen (text_view->edit->text);
+}
+
+static gboolean
+key_begins_editing (GdkEventKey *event)
+{
+ if (event->length == 0)
+ return FALSE;
+
+ return TRUE;
+}
+
+/*
+ * ECell::event method
+ */
+static gint
+ect_event (ECellView *ecell_view,
+ GdkEvent *event,
+ gint model_col,
+ gint view_col,
+ gint row,
+ ECellFlags flags,
+ ECellActions *actions)
+{
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ ETextEventProcessorEvent e_tep_event;
+ gboolean edit_display = FALSE;
+ gint preedit_len;
+ CellEdit *edit = text_view->edit;
+ GtkWidget *canvas = GTK_WIDGET (text_view->canvas);
+ gint return_val = 0;
+ d (gboolean press = FALSE);
+
+ if (!(flags & E_CELL_EDITING))
+ return 0;
+
+ if (edit && !edit->preedit_length && flags & E_CELL_PREEDIT)
+ return 1;
+
+ if (edit && edit->view_col == view_col && edit->row == row) {
+ edit_display = TRUE;
+ }
+
+ e_tep_event.type = event->type;
+ switch (event->type) {
+ case GDK_FOCUS_CHANGE:
+ break;
+ case GDK_KEY_PRESS: /* Fall Through */
+ if (edit_display) {
+ edit->show_cursor = FALSE;
+ } else {
+ ect_stop_editing (text_view, TRUE);
+ }
+ return_val = TRUE;
+ /* Fallthrough */
+ case GDK_KEY_RELEASE:
+ preedit_len = edit_display ? edit->preedit_length : 0;
+ if (edit_display && edit->im_context &&
+ gtk_im_context_filter_keypress (\
+ edit->im_context,
+ (GdkEventKey *) event)) {
+
+ edit->need_im_reset = TRUE;
+ if (preedit_len && flags & E_CELL_PREEDIT)
+ return 0;
+ else
+ return 1;
+ }
+
+ if (event->key.keyval == GDK_KEY_Escape) {
+ /* if not changed, then pass this even to parent */
+ return_val = text_view->edit != NULL && text_view->edit->text && text_view->edit->old_text && 0 != strcmp (text_view->edit->text, text_view->edit->old_text);
+ ect_cancel_edit (text_view);
+ break;
+ }
+
+ if ((!edit_display) &&
+ e_table_model_is_cell_editable (ecell_view->e_table_model, model_col, row) &&
+ key_begins_editing (&event->key)) {
+ e_table_item_enter_edit (text_view->cell_view.e_table_item_view, view_col, row);
+ ect_edit_select_all (text_view);
+ edit = text_view->edit;
+ edit_display = TRUE;
+ }
+ if (edit_display) {
+ GdkEventKey key = event->key;
+ if (key.type == GDK_KEY_PRESS &&
+ (key.keyval == GDK_KEY_KP_Enter || key.keyval == GDK_KEY_Return)) {
+ /* stop editing when it's only GDK_KEY_PRESS event */
+ e_table_item_leave_edit_ (text_view->cell_view.e_table_item_view);
+ } else {
+ e_tep_event.key.time = key.time;
+ e_tep_event.key.state = key.state;
+ e_tep_event.key.keyval = key.keyval;
+
+ /* This is probably ugly hack, but we have to handle UTF-8 input somehow */
+#if 0
+ e_tep_event.key.length = key.length;
+ e_tep_event.key.string = key.string;
+#else
+ e_tep_event.key.string = e_utf8_from_gtk_event_key (canvas, key.keyval, key.string);
+ if (e_tep_event.key.string != NULL) {
+ e_tep_event.key.length = strlen (e_tep_event.key.string);
+ } else {
+ e_tep_event.key.length = 0;
+ }
+#endif
+ _get_tep (edit);
+ return_val = e_text_event_processor_handle_event (edit->tep, &e_tep_event);
+ if (e_tep_event.key.string)
+ g_free ((gpointer) e_tep_event.key.string);
+ break;
+ }
+ }
+
+ break;
+ case GDK_BUTTON_PRESS: /* Fall Through */
+ d (press = TRUE);
+ case GDK_BUTTON_RELEASE:
+ d (g_print ("%s: %s\n", __FUNCTION__, press ? "GDK_BUTTON_PRESS" : "GDK_BUTTON_RELEASE"));
+ event->button.x -= 4;
+ event->button.y -= 1;
+ if ((!edit_display)
+ && e_table_model_is_cell_editable (ecell_view->e_table_model, model_col, row)
+ && event->type == GDK_BUTTON_RELEASE
+ && event->button.button == 1) {
+ GdkEventButton button = event->button;
+
+ e_table_item_enter_edit (text_view->cell_view.e_table_item_view, view_col, row);
+ edit = text_view->edit;
+ edit_display = TRUE;
+
+ e_tep_event.button.type = GDK_BUTTON_PRESS;
+ e_tep_event.button.time = button.time;
+ e_tep_event.button.state = button.state;
+ e_tep_event.button.button = button.button;
+ e_tep_event.button.position = get_position_from_xy (edit, event->button.x, event->button.y);
+ e_tep_event.button.device =
+ gdk_event_get_device (event);
+ _get_tep (edit);
+ edit->actions = 0;
+ return_val = e_text_event_processor_handle_event (
+ edit->tep, &e_tep_event);
+ *actions = edit->actions;
+ if (event->button.button == 1) {
+ if (event->type == GDK_BUTTON_PRESS)
+ edit->button_down = TRUE;
+ else
+ edit->button_down = FALSE;
+ }
+ edit->lastx = button.x;
+ edit->lasty = button.y;
+ edit->last_state = button.state;
+
+ e_tep_event.button.type = GDK_BUTTON_RELEASE;
+ }
+ if (edit_display) {
+ GdkEventButton button = event->button;
+ e_tep_event.button.time = button.time;
+ e_tep_event.button.state = button.state;
+ e_tep_event.button.button = button.button;
+ e_tep_event.button.position = get_position_from_xy (edit, event->button.x, event->button.y);
+ e_tep_event.button.device =
+ gdk_event_get_device (event);
+ _get_tep (edit);
+ edit->actions = 0;
+ return_val = e_text_event_processor_handle_event (
+ edit->tep, &e_tep_event);
+ *actions = edit->actions;
+ if (event->button.button == 1) {
+ if (event->type == GDK_BUTTON_PRESS)
+ edit->button_down = TRUE;
+ else
+ edit->button_down = FALSE;
+ }
+ edit->lastx = button.x;
+ edit->lasty = button.y;
+ edit->last_state = button.state;
+ }
+ break;
+ case GDK_MOTION_NOTIFY:
+ event->motion.x -= 4;
+ event->motion.y -= 1;
+ if (edit_display) {
+ GdkEventMotion motion = event->motion;
+ e_tep_event.motion.time = motion.time;
+ e_tep_event.motion.state = motion.state;
+ e_tep_event.motion.position = get_position_from_xy (edit, event->motion.x, event->motion.y);
+ _get_tep (edit);
+ edit->actions = 0;
+ return_val = e_text_event_processor_handle_event (
+ edit->tep, &e_tep_event);
+ *actions = edit->actions;
+ edit->lastx = motion.x;
+ edit->lasty = motion.y;
+ edit->last_state = motion.state;
+ }
+ break;
+ case GDK_ENTER_NOTIFY:
+#if 0
+ edit->pointer_in = TRUE;
+#endif
+ if (edit_display) {
+ if (edit->default_cursor_shown) {
+ GdkWindow *window;
+
+ window = gtk_widget_get_window (canvas);
+ gdk_window_set_cursor (window, text_view->i_cursor);
+ edit->default_cursor_shown = FALSE;
+ }
+ }
+ break;
+ case GDK_LEAVE_NOTIFY:
+#if 0
+ text_view->pointer_in = FALSE;
+#endif
+ if (edit_display) {
+ if (!edit->default_cursor_shown) {
+ GdkWindow *window;
+
+ window = gtk_widget_get_window (canvas);
+ gdk_window_set_cursor (window, NULL);
+ edit->default_cursor_shown = TRUE;
+ }
+ }
+ break;
+ default:
+ break;
+ }
+
+ return return_val;
+}
+
+/*
+ * ECell::height method
+ */
+static gint
+ect_height (ECellView *ecell_view,
+ gint model_col,
+ gint view_col,
+ gint row)
+{
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ gint height;
+ PangoLayout *layout;
+
+ layout = generate_layout (text_view, model_col, view_col, row, 0);
+ pango_layout_get_pixel_size (layout, NULL, &height);
+ g_object_unref (layout);
+ return height + (get_vertical_spacing (GTK_WIDGET (text_view->canvas)) * 2);
+}
+
+/*
+ * ECellView::enter_edit method
+ */
+static gpointer
+ect_enter_edit (ECellView *ecell_view,
+ gint model_col,
+ gint view_col,
+ gint row)
+{
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ CellEdit *edit;
+ ECellText *ect = E_CELL_TEXT (ecell_view->ecell);
+ gchar *temp;
+
+ edit = g_new0 (CellEdit, 1);
+ text_view->edit = edit;
+
+ edit->im_context = E_CANVAS (text_view->canvas)->im_context;
+ edit->need_im_reset = FALSE;
+ edit->im_context_signals_registered = FALSE;
+ edit->view_col = -1;
+ edit->model_col = -1;
+ edit->row = -1;
+
+ edit->text_view = text_view;
+ edit->model_col = model_col;
+ edit->view_col = view_col;
+ edit->row = row;
+ edit->cell_width = e_table_header_get_column (
+ ((ETableItem *) ecell_view->e_table_item_view)->header,
+ view_col)->width - 8;
+
+ edit->layout = generate_layout (text_view, model_col, view_col, row, edit->cell_width);
+
+ edit->xofs_edit = 0.0;
+ edit->yofs_edit = 0.0;
+
+ edit->selection_start = 0;
+ edit->selection_end = 0;
+ edit->select_by_word = FALSE;
+
+ edit->timeout_id = g_timeout_add (10, _blink_scroll_timeout, text_view);
+ edit->timer = g_timer_new ();
+ g_timer_elapsed (edit->timer, &(edit->scroll_start));
+ g_timer_start (edit->timer);
+
+ edit->lastx = 0;
+ edit->lasty = 0;
+ edit->last_state = 0;
+
+ edit->scroll_start = 0;
+ edit->show_cursor = TRUE;
+ edit->button_down = FALSE;
+
+ edit->tep = NULL;
+
+ edit->has_selection = FALSE;
+
+ edit->pointer_in = FALSE;
+ edit->default_cursor_shown = TRUE;
+
+ temp = e_cell_text_get_text (ect, ecell_view->e_table_model, model_col, row);
+ edit->old_text = g_strdup (temp);
+ e_cell_text_free_text (ect, temp);
+ edit->text = g_strdup (edit->old_text);
+
+ if (edit->im_context) {
+ gtk_im_context_reset (edit->im_context);
+ if (!edit->im_context_signals_registered) {
+ g_signal_connect (
+ edit->im_context, "preedit_changed",
+ G_CALLBACK (e_cell_text_preedit_changed_cb),
+ text_view);
+ g_signal_connect (
+ edit->im_context, "commit",
+ G_CALLBACK (e_cell_text_commit_cb),
+ text_view);
+ g_signal_connect (
+ edit->im_context, "retrieve_surrounding",
+ G_CALLBACK (e_cell_text_retrieve_surrounding_cb),
+ text_view);
+ g_signal_connect (
+ edit->im_context, "delete_surrounding",
+ G_CALLBACK (e_cell_text_delete_surrounding_cb),
+ text_view);
+
+ edit->im_context_signals_registered = TRUE;
+ }
+ gtk_im_context_focus_in (edit->im_context);
+ }
+
+#if 0
+ if (edit->pointer_in) {
+ if (edit->default_cursor_shown) {
+ gdk_window_set_cursor (GTK_WIDGET (item->canvas)->window, text_view->i_cursor);
+ edit->default_cursor_shown = FALSE;
+ }
+ }
+#endif
+ ect_queue_redraw (text_view, view_col, row);
+
+ return NULL;
+}
+
+/*
+ * ECellView::leave_edit method
+ */
+static void
+ect_leave_edit (ECellView *ecell_view,
+ gint model_col,
+ gint view_col,
+ gint row,
+ gpointer edit_context)
+{
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ CellEdit *edit = text_view->edit;
+
+ if (edit) {
+ if (edit->im_context) {
+ gtk_im_context_focus_out (edit->im_context);
+
+ if (edit->im_context_signals_registered) {
+ g_signal_handlers_disconnect_matched (edit->im_context, G_SIGNAL_MATCH_DATA, 0, 0, NULL, NULL, edit);
+ edit->im_context_signals_registered = FALSE;
+ }
+ }
+ ect_stop_editing (text_view, TRUE);
+ } else {
+ /*
+ * We did invoke this leave edit internally
+ */
+ }
+}
+
+/*
+ * ECellView::save_state method
+ */
+static gpointer
+ect_save_state (ECellView *ecell_view,
+ gint model_col,
+ gint view_col,
+ gint row,
+ gpointer edit_context)
+{
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ CellEdit *edit = text_view->edit;
+
+ gint *save_state = g_new (int, 2);
+
+ save_state[0] = edit->selection_start;
+ save_state[1] = edit->selection_end;
+ return save_state;
+}
+
+/*
+ * ECellView::load_state method
+ */
+static void
+ect_load_state (ECellView *ecell_view,
+ gint model_col,
+ gint view_col,
+ gint row,
+ gpointer edit_context,
+ gpointer save_state)
+{
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ CellEdit *edit = text_view->edit;
+ gint length;
+ gint *selection = save_state;
+
+ length = strlen (edit->text);
+
+ edit->selection_start = MIN (selection[0], length);
+ edit->selection_end = MIN (selection[1], length);
+
+ ect_queue_redraw (text_view, view_col, row);
+}
+
+/*
+ * ECellView::free_state method
+ */
+static void
+ect_free_state (ECellView *ecell_view,
+ gint model_col,
+ gint view_col,
+ gint row,
+ gpointer save_state)
+{
+ g_free (save_state);
+}
+
+static void
+get_font_size (PangoLayout *layout,
+ PangoFontDescription *font,
+ const gchar *text,
+ gdouble *width,
+ gdouble *height)
+{
+ gint w;
+ gint h;
+
+ g_return_if_fail (layout != NULL);
+ pango_layout_set_font_description (layout, font);
+ pango_layout_set_text (layout, text, -1);
+ pango_layout_set_width (layout, -1);
+ pango_layout_set_indent (layout, 0);
+
+ pango_layout_get_size (layout, &w, &h);
+
+ *width = (gdouble)w/(gdouble)PANGO_SCALE;
+ *height = (gdouble)h/(gdouble)PANGO_SCALE;
+}
+
+static void
+ect_print (ECellView *ecell_view,
+ GtkPrintContext *context,
+ gint model_col,
+ gint view_col,
+ gint row,
+ gdouble width,
+ gdouble height)
+{
+ PangoFontDescription *font_des;
+ PangoLayout *layout;
+ PangoContext *pango_context;
+ PangoFontMetrics *font_metrics;
+ ECellText *ect = E_CELL_TEXT (ecell_view->ecell);
+ ECellTextView *ectView = (ECellTextView *) ecell_view;
+ GtkWidget *canvas = GTK_WIDGET (ectView->canvas);
+ GtkStyle *style;
+ PangoDirection dir;
+ gboolean strikeout, underline;
+ cairo_t *cr;
+ gchar *string;
+ gdouble ty, ly, text_width = 0.0, text_height = 0.0;
+
+ cr = gtk_print_context_get_cairo_context (context);
+ string = e_cell_text_get_text (ect, ecell_view->e_table_model, model_col, row);
+
+ cairo_save (cr);
+ layout = gtk_print_context_create_pango_layout (context);
+ font_des = pango_font_description_from_string ("sans 10"); /* fix me font hardcoded */
+ pango_layout_set_font_description (layout, font_des);
+
+ pango_layout_set_text (layout, string, -1);
+ get_font_size (layout, font_des, string, &text_width, &text_height);
+
+ cairo_move_to (cr, 2, 2);
+ cairo_rectangle (cr, 2, 2, width + 2, height + 2);
+ cairo_clip (cr);
+
+ style = gtk_widget_get_style (canvas);
+ pango_context = gtk_widget_get_pango_context (canvas);
+ font_metrics = pango_context_get_metrics (
+ pango_context, style->font_desc,
+ pango_context_get_language (pango_context));
+ ty = (gdouble)(text_height -
+ pango_font_metrics_get_ascent (font_metrics) -
+ pango_font_metrics_get_descent (font_metrics)) / 2.0 /(gdouble) PANGO_SCALE;
+
+ strikeout = ect->strikeout_column >= 0 && row >= 0 &&
+ e_table_model_value_at (ecell_view->e_table_model, ect->strikeout_column, row);
+ underline = ect->underline_column >= 0 && row >= 0 &&
+ e_table_model_value_at (ecell_view->e_table_model, ect->underline_column, row);
+
+ dir = pango_find_base_dir (string, strlen (string));
+
+ if (underline) {
+ ly = ty + (gdouble) pango_font_metrics_get_underline_position (font_metrics) / (gdouble) PANGO_SCALE;
+ cairo_new_path (cr);
+ if (dir == PANGO_DIRECTION_RTL) {
+ cairo_move_to (cr, width - 2, ly + text_height + 6);
+ cairo_line_to (cr, MAX (width - 2 - text_width, 2), ly + text_height + 6);
+ }
+ else {
+ cairo_move_to (cr, 2, ly + text_height + 6);
+ cairo_line_to (cr, MIN (2 + text_width, width - 2), ly + text_height + 6);
+ }
+ cairo_set_line_width (cr, (gdouble) pango_font_metrics_get_underline_thickness (font_metrics) / (gdouble) PANGO_SCALE);
+ cairo_stroke (cr);
+ }
+
+ if (strikeout) {
+ ly = ty + (gdouble) pango_font_metrics_get_strikethrough_position (font_metrics) / (gdouble) PANGO_SCALE;
+ cairo_new_path (cr);
+ if (dir == PANGO_DIRECTION_RTL) {
+ cairo_move_to (cr, width - 2, ly + text_height + 6);
+ cairo_line_to (cr, MAX (width - 2 - text_width, 2), ly + text_height + 6);
+ }
+ else {
+ cairo_move_to (cr, 2, ly + text_height + 6);
+ cairo_line_to (cr, MIN (2 + text_width, width - 2), ly + text_height + 6);
+ }
+ cairo_set_line_width (cr,(gdouble) pango_font_metrics_get_strikethrough_thickness (font_metrics) / (gdouble) PANGO_SCALE);
+
+ cairo_stroke (cr);
+ }
+
+ cairo_move_to (cr, 2, text_height- 5);
+ pango_layout_set_width (layout, (width - 4) * PANGO_SCALE);
+ pango_layout_set_wrap (layout, PANGO_WRAP_CHAR);
+ pango_cairo_show_layout (cr, layout);
+ cairo_restore (cr);
+
+ pango_font_description_free (font_des);
+ g_object_unref (layout);
+ e_cell_text_free_text (ect, string);
+}
+
+static gdouble
+ect_print_height (ECellView *ecell_view,
+ GtkPrintContext *context,
+ gint model_col,
+ gint view_col,
+ gint row,
+ gdouble width)
+{
+ /*
+ * Font size is 16 by default. To leave some margin for cell
+ * text area, 2 for footer, 2 for header, actual print height
+ * should be 16 + 4.
+ * Height of some special font is much higher than others,
+ * such as Arabic. So leave some more margin for cell.
+ */
+ PangoFontDescription *font_des;
+ PangoLayout *layout;
+ ECellText *ect = E_CELL_TEXT (ecell_view->ecell);
+ gchar *string;
+ gdouble text_width = 0.0, text_height = 0.0;
+ gint lines = 1;
+
+ string = e_cell_text_get_text (ect, ecell_view->e_table_model, model_col, row);
+
+ layout = gtk_print_context_create_pango_layout (context);
+ font_des = pango_font_description_from_string ("sans 10"); /* fix me font hardcoded */
+ pango_layout_set_font_description (layout, font_des);
+
+ pango_layout_set_text (layout, string, -1);
+ get_font_size (layout, font_des, string, &text_width, &text_height);
+ /* Checking if the text width goes beyond the column width to increase the
+ * number of lines.
+ */
+ if (text_width > width - 4)
+ lines = (text_width / (width - 4)) + 1;
+ return 16 *lines + 8;
+}
+
+static gint
+ect_max_width (ECellView *ecell_view,
+ gint model_col,
+ gint view_col)
+{
+ /* New ECellText */
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ gint row;
+ gint number_of_rows;
+ gint max_width = 0;
+
+ number_of_rows = e_table_model_row_count (ecell_view->e_table_model);
+
+ for (row = 0; row < number_of_rows; row++) {
+ PangoLayout *layout = generate_layout (text_view, model_col, view_col, row, 0);
+ gint width;
+
+ pango_layout_get_pixel_size (layout, &width, NULL);
+
+ max_width = MAX (max_width, width);
+ g_object_unref (layout);
+ }
+
+ return max_width + 8;
+}
+
+static gint
+ect_max_width_by_row (ECellView *ecell_view,
+ gint model_col,
+ gint view_col,
+ gint row)
+{
+ /* New ECellText */
+ ECellTextView *text_view = (ECellTextView *) ecell_view;
+ gint width;
+ PangoLayout *layout;
+
+ if (row >= e_table_model_row_count (ecell_view->e_table_model))
+ return 0;
+
+ layout = generate_layout (text_view, model_col, view_col, row, 0);
+ pango_layout_get_pixel_size (layout, &width, NULL);
+ g_object_unref (layout);
+
+ return width + 8;
+}
+
+static void
+ect_finalize (GObject *object)
+{
+ ECellText *ect = E_CELL_TEXT (object);
+
+ g_free (ect->font_name);
+
+ G_OBJECT_CLASS (e_cell_text_parent_class)->finalize (object);
+}
+
+/* Set_arg handler for the text item */
+static void
+ect_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ ECellText *text;
+
+ text = E_CELL_TEXT (object);
+
+ switch (property_id) {
+ case PROP_STRIKEOUT_COLUMN:
+ text->strikeout_column = g_value_get_int (value);
+ break;
+
+ case PROP_UNDERLINE_COLUMN:
+ text->underline_column = g_value_get_int (value);
+ break;
+
+ case PROP_BOLD_COLUMN:
+ text->bold_column = g_value_get_int (value);
+ break;
+
+ case PROP_COLOR_COLUMN:
+ text->color_column = g_value_get_int (value);
+ break;
+
+ case PROP_EDITABLE:
+ text->editable = g_value_get_boolean (value);
+ break;
+
+ case PROP_BG_COLOR_COLUMN:
+ text->bg_color_column = g_value_get_int (value);
+ break;
+
+ default:
+ return;
+ }
+}
+
+/* Get_arg handler for the text item */
+static void
+ect_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ ECellText *text;
+
+ text = E_CELL_TEXT (object);
+
+ switch (property_id) {
+ case PROP_STRIKEOUT_COLUMN:
+ g_value_set_int (value, text->strikeout_column);
+ break;
+
+ case PROP_UNDERLINE_COLUMN:
+ g_value_set_int (value, text->underline_column);
+ break;
+
+ case PROP_BOLD_COLUMN:
+ g_value_set_int (value, text->bold_column);
+ break;
+
+ case PROP_COLOR_COLUMN:
+ g_value_set_int (value, text->color_column);
+ break;
+
+ case PROP_EDITABLE:
+ g_value_set_boolean (value, text->editable);
+ break;
+
+ case PROP_BG_COLOR_COLUMN:
+ g_value_set_int (value, text->bg_color_column);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static gchar *ellipsis_default = NULL;
+static gboolean use_ellipsis_default = TRUE;
+
+static void
+e_cell_text_class_init (ECellTextClass *class)
+{
+ ECellClass *ecc = E_CELL_CLASS (class);
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+ const gchar *ellipsis_env;
+
+ object_class->finalize = ect_finalize;
+
+ ecc->new_view = ect_new_view;
+ ecc->kill_view = ect_kill_view;
+ ecc->realize = ect_realize;
+ ecc->unrealize = ect_unrealize;
+ ecc->draw = ect_draw;
+ ecc->event = ect_event;
+ ecc->height = ect_height;
+ ecc->enter_edit = ect_enter_edit;
+ ecc->leave_edit = ect_leave_edit;
+ ecc->save_state = ect_save_state;
+ ecc->load_state = ect_load_state;
+ ecc->free_state = ect_free_state;
+ ecc->print = ect_print;
+ ecc->print_height = ect_print_height;
+ ecc->max_width = ect_max_width;
+ ecc->max_width_by_row = ect_max_width_by_row;
+ ecc->get_bg_color = ect_get_bg_color;
+
+ class->get_text = ect_real_get_text;
+ class->free_text = ect_real_free_text;
+ class->set_value = ect_real_set_value;
+
+ object_class->get_property = ect_get_property;
+ object_class->set_property = ect_set_property;
+
+ signals[TEXT_INSERTED] = g_signal_new (
+ "text_inserted",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (ECellTextClass, text_inserted),
+ NULL, NULL,
+ e_marshal_VOID__POINTER_INT_INT_INT_INT,
+ G_TYPE_NONE, 5,
+ G_TYPE_POINTER,
+ G_TYPE_INT,
+ G_TYPE_INT,
+ G_TYPE_INT,
+ G_TYPE_INT);
+
+ signals[TEXT_DELETED] = g_signal_new (
+ "text_deleted",
+ G_TYPE_FROM_CLASS (object_class),
+ G_SIGNAL_RUN_FIRST,
+ G_STRUCT_OFFSET (ECellTextClass, text_deleted),
+ NULL, NULL,
+ e_marshal_VOID__POINTER_INT_INT_INT_INT,
+ G_TYPE_NONE, 5,
+ G_TYPE_POINTER,
+ G_TYPE_INT,
+ G_TYPE_INT,
+ G_TYPE_INT,
+ G_TYPE_INT);
+
+ g_object_class_install_property (
+ object_class,
+ PROP_STRIKEOUT_COLUMN,
+ g_param_spec_int (
+ "strikeout_column",
+ "Strikeout Column",
+ NULL,
+ -1, G_MAXINT, -1,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_UNDERLINE_COLUMN,
+ g_param_spec_int (
+ "underline_column",
+ "Underline Column",
+ NULL,
+ -1, G_MAXINT, -1,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_BOLD_COLUMN,
+ g_param_spec_int (
+ "bold_column",
+ "Bold Column",
+ NULL,
+ -1, G_MAXINT, -1,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_COLOR_COLUMN,
+ g_param_spec_int (
+ "color_column",
+ "Color Column",
+ NULL,
+ -1, G_MAXINT, -1,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_EDITABLE,
+ g_param_spec_boolean (
+ "editable",
+ "Editable",
+ NULL,
+ FALSE,
+ G_PARAM_READWRITE));
+
+ g_object_class_install_property (
+ object_class,
+ PROP_BG_COLOR_COLUMN,
+ g_param_spec_int (
+ "bg_color_column",
+ "BG Color Column",
+ NULL,
+ -1, G_MAXINT, -1,
+ G_PARAM_READWRITE));
+
+ if (!clipboard_atom)
+ clipboard_atom = gdk_atom_intern ("CLIPBOARD", FALSE);
+
+ ellipsis_env = g_getenv ("GAL_ELLIPSIS");
+ if (ellipsis_env) {
+ if (*ellipsis_env) {
+ ellipsis_default = g_strdup (ellipsis_env);
+ } else {
+ use_ellipsis_default = FALSE;
+ }
+ }
+}
+
+/* IM Context Callbacks */
+
+static void
+e_cell_text_get_cursor_locations (ECellTextView *tv,
+ GdkRectangle *strong_pos,
+ GdkRectangle *weak_pos)
+{
+ GdkRectangle area;
+ CellEdit *edit = tv->edit;
+ ECellView *cell_view = (ECellView *) tv;
+ ETableItem *item = E_TABLE_ITEM ((cell_view)->e_table_item_view);
+ GnomeCanvasItem *parent_item = GNOME_CANVAS_ITEM (item)->parent;
+ PangoRectangle pango_strong_pos;
+ PangoRectangle pango_weak_pos;
+ gint x, y, col, row;
+ gdouble x1,y1;
+ gint cx, cy;
+ gint index;
+
+ row = edit->row;
+ col = edit->view_col;
+
+ e_table_item_get_cell_geometry (
+ item, &row, &col, &x, &y, NULL, &area.height);
+
+ gnome_canvas_item_get_bounds (GNOME_CANVAS_ITEM (parent_item), &x1, &y1, NULL, NULL);
+
+ gnome_canvas_get_scroll_offsets (GNOME_CANVAS (GNOME_CANVAS_ITEM (parent_item)->canvas), &cx, &cy);
+
+ index = edit->selection_end + edit->preedit_pos;
+
+ pango_layout_get_cursor_pos (
+ edit->layout,
+ index,
+ strong_pos ? &pango_strong_pos : NULL,
+ weak_pos ? &pango_weak_pos : NULL);
+
+ if (strong_pos) {
+ strong_pos->x = x + x1 - cx - edit->xofs_edit + pango_strong_pos.x / PANGO_SCALE;
+ strong_pos->y = y + y1 - cy - edit->yofs_edit + pango_strong_pos.y / PANGO_SCALE;
+ strong_pos->width = 0;
+ strong_pos->height = pango_strong_pos.height / PANGO_SCALE;
+ }
+
+ if (weak_pos) {
+ weak_pos->x = x + x1 - cx - edit->xofs_edit + pango_weak_pos.x / PANGO_SCALE;
+ weak_pos->y = y + y1 - cy - edit->yofs_edit + pango_weak_pos.y / PANGO_SCALE;
+ weak_pos->width = 0;
+ weak_pos->height = pango_weak_pos.height / PANGO_SCALE;
+ }
+}
+
+static void
+update_im_cursor_location (ECellTextView *tv)
+{
+ CellEdit *edit = tv->edit;
+ GdkRectangle area;
+
+ e_cell_text_get_cursor_locations (tv, &area, NULL);
+
+ gtk_im_context_set_cursor_location (edit->im_context, &area);
+}
+
+static void
+e_cell_text_preedit_changed_cb (GtkIMContext *context,
+ ECellTextView *tv)
+{
+ gchar *preedit_string;
+ gint cursor_pos;
+ CellEdit *edit = tv->edit;
+ gtk_im_context_get_preedit_string (
+ edit->im_context, &preedit_string,
+ NULL, &cursor_pos);
+
+ edit->preedit_length = strlen (preedit_string);
+ cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (preedit_string, -1));
+ edit->preedit_pos = g_utf8_offset_to_pointer (preedit_string, cursor_pos) - preedit_string;
+ g_free (preedit_string);
+
+ ect_queue_redraw (tv, edit->view_col, edit->row);
+}
+
+static void
+e_cell_text_commit_cb (GtkIMContext *context,
+ const gchar *str,
+ ECellTextView *tv)
+{
+ CellEdit *edit = tv->edit;
+ ETextEventProcessorCommand command = { 0 };
+
+ if (g_utf8_validate (str, strlen (str), NULL)) {
+ command.action = E_TEP_INSERT;
+ command.position = E_TEP_SELECTION;
+ command.string = (gchar *) str;
+ command.value = strlen (str);
+ e_cell_text_view_command (edit->tep, &command, edit);
+ }
+
+}
+
+static gboolean
+e_cell_text_retrieve_surrounding_cb (GtkIMContext *context,
+ ECellTextView *tv)
+{
+ CellEdit *edit = tv->edit;
+
+ gtk_im_context_set_surrounding (
+ context,
+ edit->text,
+ strlen (edit->text),
+ MIN (edit->selection_start, edit->selection_end));
+
+ return TRUE;
+}
+
+static gboolean
+e_cell_text_delete_surrounding_cb (GtkIMContext *context,
+ gint offset,
+ gint n_chars,
+ ECellTextView *tv)
+{
+ gint begin_pos, end_pos;
+ glong text_len;
+ CellEdit *edit = tv->edit;
+
+ text_len = g_utf8_strlen (edit->text, -1);
+ begin_pos = g_utf8_pointer_to_offset (
+ edit->text,
+ edit->text + MIN (edit->selection_start, edit->selection_end));
+ begin_pos += offset;
+ end_pos = begin_pos + n_chars;
+ if (begin_pos < 0 || text_len < begin_pos)
+ return FALSE;
+ if (end_pos > text_len)
+ end_pos = text_len;
+ edit->selection_start = g_utf8_offset_to_pointer (edit->text, begin_pos)
+ - edit->text;
+ edit->selection_end = g_utf8_offset_to_pointer (edit->text, end_pos)
+ - edit->text;
+
+ _delete_selection (tv);
+
+ return TRUE;
+}
+
+static void
+e_cell_text_init (ECellText *ect)
+{
+ ect->ellipsis = g_strdup (ellipsis_default);
+ ect->use_ellipsis = use_ellipsis_default;
+ ect->strikeout_column = -1;
+ ect->underline_column = -1;
+ ect->bold_column = -1;
+ ect->color_column = -1;
+ ect->bg_color_column = -1;
+ ect->editable = TRUE;
+}
+
+/**
+ * e_cell_text_new:
+ * @fontname: this param is no longer used, but left here for api stability
+ * @justify: Justification of the string in the cell.
+ *
+ * Creates a new ECell renderer that can be used to render strings that
+ * that come from the model. The value returned from the model is
+ * interpreted as being a gchar *.
+ *
+ * The ECellText object support a large set of properties that can be
+ * configured through the Gtk argument system and allows the user to have
+ * a finer control of the way the string is displayed. The arguments supported
+ * allow the control of strikeout, underline, bold, and color.
+ *
+ * The arguments "strikeout_column", "underline_column", "bold_column"
+ * and "color_column" set and return an integer that points to a
+ * column in the model that controls these settings. So controlling
+ * the way things are rendered is achieved by having special columns
+ * in the model that will be used to flag whether the text should be
+ * rendered with strikeout, or bolded. In the case of the
+ * "color_column" argument, the column in the model is expected to
+ * have a string that can be parsed by gdk_color_parse().
+ *
+ * Returns: an ECell object that can be used to render strings.
+ */
+ECell *
+e_cell_text_new (const gchar *fontname,
+ GtkJustification justify)
+{
+ ECellText *ect = g_object_new (E_TYPE_CELL_TEXT, NULL);
+
+ e_cell_text_construct (ect, fontname, justify);
+
+ return (ECell *) ect;
+}
+
+/**
+ * e_cell_text_construct:
+ * @cell: The cell to construct
+ * @fontname: this param is no longer used, but left here for api stability
+ * @justify: Justification of the string in the cell
+ *
+ * constructs the ECellText. To be used by subclasses and language
+ * bindings.
+ *
+ * Returns: The ECellText.
+ */
+ECell *
+e_cell_text_construct (ECellText *cell,
+ const gchar *fontname,
+ GtkJustification justify)
+{
+ if (!cell)
+ return E_CELL (NULL);
+ if (fontname)
+ cell->font_name = g_strdup (fontname);
+ cell->justify = justify;
+ return E_CELL (cell);
+}
+
+gchar *
+e_cell_text_get_text (ECellText *cell,
+ ETableModel *model,
+ gint col,
+ gint row)
+{
+ ECellTextClass *class;
+
+ g_return_val_if_fail (E_IS_CELL_TEXT (cell), NULL);
+
+ class = E_CELL_TEXT_GET_CLASS (cell);
+ if (class->get_text == NULL)
+ return NULL;
+
+ return class->get_text (cell, model, col, row);
+}
+
+void
+e_cell_text_free_text (ECellText *cell,
+ gchar *text)
+{
+ ECellTextClass *class;
+
+ g_return_if_fail (E_IS_CELL_TEXT (cell));
+
+ class = E_CELL_TEXT_GET_CLASS (cell);
+ if (class->free_text == NULL)
+ return;
+
+ class->free_text (cell, text);
+}
+
+void
+e_cell_text_set_value (ECellText *cell,
+ ETableModel *model,
+ gint col,
+ gint row,
+ const gchar *text)
+{
+ ECellTextClass *class;
+
+ g_return_if_fail (E_IS_CELL_TEXT (cell));
+
+ class = E_CELL_TEXT_GET_CLASS (cell);
+ if (class->set_value == NULL)
+ return;
+
+ class->set_value (cell, model, col, row, text);
+}
+
+/* fixme: Handle Font attributes */
+/* position is in BYTES */
+
+static gint
+get_position_from_xy (CellEdit *edit,
+ gint x,
+ gint y)
+{
+ gint index;
+ gint trailing;
+ const gchar *text;
+
+ PangoLayout *layout = generate_layout (edit->text_view, edit->model_col, edit->view_col, edit->row, edit->cell_width);
+ ECellTextView *text_view = edit->text_view;
+ ECellText *ect = (ECellText *) ((ECellView *) text_view)->ecell;
+
+ x -= (ect->x + text_view->xofs - edit->xofs_edit);
+ y -= (ect->y + text_view->yofs - edit->yofs_edit);
+
+ pango_layout_xy_to_index (layout, x * PANGO_SCALE, y * PANGO_SCALE, &index, &trailing);
+
+ text = pango_layout_get_text (layout);
+
+ return g_utf8_offset_to_pointer (text + index, trailing) - text;
+}
+
+#define SCROLL_WAIT_TIME 30000
+
+static gboolean
+_blink_scroll_timeout (gpointer data)
+{
+ ECellTextView *text_view = (ECellTextView *) data;
+ ECellText *ect = E_CELL_TEXT (((ECellView *) text_view)->ecell);
+ CellEdit *edit = text_view->edit;
+
+ gulong current_time;
+ gboolean scroll = FALSE;
+ gboolean redraw = FALSE;
+ gint width, height;
+
+ g_timer_elapsed (edit->timer, &current_time);
+
+ if (edit->scroll_start + SCROLL_WAIT_TIME > 1000000) {
+ if (current_time > edit->scroll_start - (1000000 - SCROLL_WAIT_TIME) &&
+ current_time < edit->scroll_start)
+ scroll = TRUE;
+ } else {
+ if (current_time > edit->scroll_start + SCROLL_WAIT_TIME ||
+ current_time < edit->scroll_start)
+ scroll = TRUE;
+ }
+
+ pango_layout_get_pixel_size (edit->layout, &width, &height);
+
+ if (scroll && edit->button_down) {
+ /* FIXME: Copy this for y. */
+ if (edit->lastx - ect->x > edit->cell_width) {
+ if (edit->xofs_edit < width - edit->cell_width) {
+ edit->xofs_edit += 4;
+ if (edit->xofs_edit > width - edit->cell_width + 1)
+ edit->xofs_edit = width - edit->cell_width + 1;
+ redraw = TRUE;
+ }
+ }
+ if (edit->lastx - ect->x < 0 &&
+ edit->xofs_edit > 0) {
+ edit->xofs_edit -= 4;
+ if (edit->xofs_edit < 0)
+ edit->xofs_edit = 0;
+ redraw = TRUE;
+ }
+ if (redraw) {
+ ETextEventProcessorEvent e_tep_event;
+ e_tep_event.type = GDK_MOTION_NOTIFY;
+ e_tep_event.motion.state = edit->last_state;
+ e_tep_event.motion.time = 0;
+ e_tep_event.motion.position = get_position_from_xy (edit, edit->lastx, edit->lasty);
+ _get_tep (edit);
+ e_text_event_processor_handle_event (
+ edit->tep,
+ &e_tep_event);
+ edit->scroll_start = current_time;
+ }
+ }
+
+ if (!((current_time / 500000) % 2)) {
+ if (!edit->show_cursor)
+ redraw = TRUE;
+ edit->show_cursor = TRUE;
+ } else {
+ if (edit->show_cursor)
+ redraw = TRUE;
+ edit->show_cursor = FALSE;
+ }
+ if (redraw) {
+ ect_queue_redraw (text_view, edit->view_col, edit->row);
+ }
+ return TRUE;
+}
+
+static gint
+next_word (CellEdit *edit,
+ gint start)
+{
+ gchar *p;
+ gint length;
+
+ length = strlen (edit->text);
+ if (start >= length)
+ return length;
+
+ p = g_utf8_next_char (edit->text + start);
+
+ while (*p && g_unichar_validate (g_utf8_get_char (p))) {
+ gunichar unival = g_utf8_get_char (p);
+ if (g_unichar_isspace (unival))
+ return p - edit->text;
+ p = g_utf8_next_char (p);
+ }
+
+ return p - edit->text;
+}
+
+static gint
+_get_position (ECellTextView *text_view,
+ ETextEventProcessorCommand *command)
+{
+ gint length;
+ CellEdit *edit = text_view->edit;
+ gchar *p;
+ gint unival;
+ gint index;
+ gint trailing;
+
+ switch (command->position) {
+
+ case E_TEP_VALUE:
+ return command->value;
+
+ case E_TEP_SELECTION:
+ return edit->selection_end;
+
+ case E_TEP_START_OF_BUFFER:
+ return 0;
+
+ /* fixme: this probably confuses TEP */
+
+ case E_TEP_END_OF_BUFFER:
+ return strlen (edit->text);
+
+ case E_TEP_START_OF_LINE:
+
+ if (edit->selection_end < 1) return 0;
+
+ p = g_utf8_find_prev_char (edit->text, edit->text + edit->selection_end);
+
+ if (p == edit->text) return 0;
+
+ p = g_utf8_find_prev_char (edit->text, p);
+
+ while (p && p > edit->text) {
+ if (*p == '\n') return p - edit->text + 1;
+ p = g_utf8_find_prev_char (edit->text, p);
+ }
+
+ return 0;
+
+ case E_TEP_END_OF_LINE:
+
+ length = strlen (edit->text);
+ if (edit->selection_end >= length) return length;
+
+ p = g_utf8_next_char (edit->text + edit->selection_end);
+
+ while (*p && g_unichar_validate (g_utf8_get_char (p))) {
+ if (*p == '\n') return p - edit->text;
+ p = g_utf8_next_char (p);
+ }
+
+ return p - edit->text;
+
+ case E_TEP_FORWARD_CHARACTER:
+
+ length = strlen (edit->text);
+ if (edit->selection_end >= length) return length;
+
+ p = g_utf8_next_char (edit->text + edit->selection_end);
+
+ return p - edit->text;
+
+ case E_TEP_BACKWARD_CHARACTER:
+
+ if (edit->selection_end < 1) return 0;
+
+ p = g_utf8_find_prev_char (edit->text, edit->text + edit->selection_end);
+
+ if (p == NULL) return 0;
+
+ return p - edit->text;
+
+ case E_TEP_FORWARD_WORD:
+ return next_word (edit, edit->selection_end);
+
+ case E_TEP_BACKWARD_WORD:
+
+ if (edit->selection_end < 1) return 0;
+
+ p = g_utf8_find_prev_char (edit->text, edit->text + edit->selection_end);
+
+ if (p == edit->text) return 0;
+
+ p = g_utf8_find_prev_char (edit->text, p);
+
+ while (p && p > edit->text && g_unichar_validate (g_utf8_get_char (p))) {
+ unival = g_utf8_get_char (p);
+ if (g_unichar_isspace (unival)) {
+ return (g_utf8_next_char (p) - edit->text);
+ }
+ p = g_utf8_find_prev_char (edit->text, p);
+ }
+
+ return 0;
+
+ case E_TEP_FORWARD_LINE:
+ pango_layout_move_cursor_visually (
+ edit->layout,
+ TRUE,
+ edit->selection_end,
+ 0,
+ TRUE,
+ &index,
+ &trailing);
+ index = g_utf8_offset_to_pointer (edit->text + index, trailing) - edit->text;
+ if (index < 0)
+ return 0;
+ length = strlen (edit->text);
+ if (index >= length)
+ return length;
+ return index;
+ case E_TEP_BACKWARD_LINE:
+ pango_layout_move_cursor_visually (
+ edit->layout,
+ TRUE,
+ edit->selection_end,
+ 0,
+ TRUE,
+ &index,
+ &trailing);
+
+ index = g_utf8_offset_to_pointer (edit->text + index, trailing) - edit->text;
+ if (index < 0)
+ return 0;
+ length = strlen (edit->text);
+ if (index >= length)
+ return length;
+ return index;
+ case E_TEP_FORWARD_PARAGRAPH:
+ case E_TEP_BACKWARD_PARAGRAPH:
+
+ case E_TEP_FORWARD_PAGE:
+ case E_TEP_BACKWARD_PAGE:
+ return edit->selection_end;
+ default:
+ return edit->selection_end;
+ }
+
+ g_return_val_if_reached (0);
+
+ return 0; /* Kill warning */
+}
+
+static void
+_delete_selection (ECellTextView *text_view)
+{
+ CellEdit *edit = text_view->edit;
+ gint length;
+ gchar *sp, *ep;
+
+ if (edit->selection_end == edit->selection_start) return;
+
+ if (edit->selection_end < edit->selection_start) {
+ edit->selection_end ^= edit->selection_start;
+ edit->selection_start ^= edit->selection_end;
+ edit->selection_end ^= edit->selection_start;
+ }
+
+ sp = edit->text + edit->selection_start;
+ ep = edit->text + edit->selection_end;
+ length = strlen (ep) + 1;
+
+ memmove (sp, ep, length);
+
+ edit->selection_end = edit->selection_start;
+
+ g_signal_emit (VIEW_TO_CELL (text_view), signals[TEXT_DELETED], 0, text_view, edit->selection_start, ep - sp, edit->row, edit->model_col);
+}
+
+/* fixme: */
+/* NB! We expect value to be length IN BYTES */
+
+static void
+_insert (ECellTextView *text_view,
+ const gchar *string,
+ gint value)
+{
+ CellEdit *edit = text_view->edit;
+ gchar *temp;
+
+ if (value <= 0) return;
+
+ edit->selection_start = MIN (strlen (edit->text), edit->selection_start);
+
+ temp = g_new (gchar, strlen (edit->text) + value + 1);
+
+ strncpy (temp, edit->text, edit->selection_start);
+ strncpy (temp + edit->selection_start, string, value);
+ strcpy (temp + edit->selection_start + value, edit->text + edit->selection_end);
+
+ g_free (edit->text);
+
+ edit->text = temp;
+
+ edit->selection_start += value;
+ edit->selection_end = edit->selection_start;
+
+ g_signal_emit (VIEW_TO_CELL (text_view), signals[TEXT_INSERTED], 0, text_view, edit->selection_end - value, value, edit->row, edit->model_col);
+}
+
+static void
+capitalize (CellEdit *edit,
+ gint start,
+ gint end,
+ ETextEventProcessorCaps type)
+{
+ ECellTextView *text_view = edit->text_view;
+
+ gboolean first = TRUE;
+ gint character_length = g_utf8_strlen (edit->text + start, start - end);
+ const gchar *p = edit->text + start;
+ const gchar *text_end = edit->text + end;
+ gchar *new_text = g_new0 (char, character_length * 6 + 1);
+ gchar *output = new_text;
+
+ while (p && *p && p < text_end && g_unichar_validate (g_utf8_get_char (p))) {
+ gunichar unival = g_utf8_get_char (p);
+ gunichar newval = unival;
+
+ switch (type) {
+ case E_TEP_CAPS_UPPER:
+ newval = g_unichar_toupper (unival);
+ break;
+ case E_TEP_CAPS_LOWER:
+ newval = g_unichar_tolower (unival);
+ break;
+ case E_TEP_CAPS_TITLE:
+ if (g_unichar_isalpha (unival)) {
+ if (first)
+ newval = g_unichar_totitle (unival);
+ else
+ newval = g_unichar_tolower (unival);
+ first = FALSE;
+ } else {
+ first = TRUE;
+ }
+ break;
+ }
+ g_unichar_to_utf8 (newval, output);
+ output = g_utf8_next_char (output);
+
+ p = g_utf8_next_char (p);
+ }
+ *output = 0;
+
+ edit->selection_end = end;
+ edit->selection_start = start;
+ _delete_selection (text_view);
+
+ _insert (text_view, new_text, output - new_text);
+
+ g_free (new_text);
+}
+
+static void
+e_cell_text_view_command (ETextEventProcessor *tep,
+ ETextEventProcessorCommand *command,
+ gpointer data)
+{
+ CellEdit *edit = (CellEdit *) data;
+ ECellTextView *text_view = edit->text_view;
+ ECellText *ect = E_CELL_TEXT (text_view->cell_view.ecell);
+
+ gboolean change = FALSE;
+ gboolean redraw = FALSE;
+
+ gint sel_start, sel_end;
+
+ /* If the EText isn't editable, then ignore any commands that would
+ * modify the text. */
+ if (!ect->editable && (command->action == E_TEP_DELETE
+ || command->action == E_TEP_INSERT
+ || command->action == E_TEP_PASTE
+ || command->action == E_TEP_GET_SELECTION))
+ return;
+
+ switch (command->action) {
+ case E_TEP_MOVE:
+ edit->selection_start = _get_position (text_view, command);
+ edit->selection_end = edit->selection_start;
+ if (edit->timer) {
+ g_timer_reset (edit->timer);
+ }
+ redraw = TRUE;
+ break;
+ case E_TEP_SELECT:
+ edit->selection_end = _get_position (text_view, command);
+ sel_start = MIN (edit->selection_start, edit->selection_end);
+ sel_end = MAX (edit->selection_start, edit->selection_end);
+ if (sel_start != sel_end) {
+ e_cell_text_view_supply_selection (
+ edit, command->time, GDK_SELECTION_PRIMARY,
+ edit->text + sel_start,
+ sel_end - sel_start);
+ } else if (edit->timer) {
+ g_timer_reset (edit->timer);
+ }
+ redraw = TRUE;
+ break;
+ case E_TEP_DELETE:
+ if (edit->selection_end == edit->selection_start) {
+ edit->selection_end = _get_position (text_view, command);
+ }
+ _delete_selection (text_view);
+ if (edit->timer) {
+ g_timer_reset (edit->timer);
+ }
+ redraw = TRUE;
+ change = TRUE;
+ break;
+
+ case E_TEP_INSERT:
+ if (!edit->preedit_length && edit->selection_end != edit->selection_start) {
+ _delete_selection (text_view);
+ }
+ _insert (text_view, command->string, command->value);
+ if (edit->timer) {
+ g_timer_reset (edit->timer);
+ }
+ redraw = TRUE;
+ change = TRUE;
+ break;
+ case E_TEP_COPY:
+ sel_start = MIN (edit->selection_start, edit->selection_end);
+ sel_end = MAX (edit->selection_start, edit->selection_end);
+ if (sel_start != sel_end) {
+ e_cell_text_view_supply_selection (
+ edit, command->time, clipboard_atom,
+ edit->text + sel_start,
+ sel_end - sel_start);
+ }
+ if (edit->timer) {
+ g_timer_reset (edit->timer);
+ }
+ break;
+ case E_TEP_PASTE:
+ e_cell_text_view_get_selection (edit, clipboard_atom, command->time);
+ if (edit->timer) {
+ g_timer_reset (edit->timer);
+ }
+ redraw = TRUE;
+ change = TRUE;
+ break;
+ case E_TEP_GET_SELECTION:
+ e_cell_text_view_get_selection (edit, GDK_SELECTION_PRIMARY, command->time);
+ break;
+ case E_TEP_ACTIVATE:
+ e_table_item_leave_edit_ (text_view->cell_view.e_table_item_view);
+ break;
+ case E_TEP_SET_SELECT_BY_WORD:
+ edit->select_by_word = command->value;
+ break;
+ case E_TEP_GRAB:
+ edit->actions = E_CELL_GRAB;
+ break;
+ case E_TEP_UNGRAB:
+ edit->actions = E_CELL_UNGRAB;
+ break;
+ case E_TEP_CAPS:
+ if (edit->selection_start == edit->selection_end) {
+ capitalize (edit, edit->selection_start, next_word (edit, edit->selection_start), command->value);
+ } else {
+ gint selection_start = MIN (edit->selection_start, edit->selection_end);
+ gint selection_end = edit->selection_start + edit->selection_end - selection_start; /* Slightly faster than MAX */
+ capitalize (edit, selection_start, selection_end, command->value);
+ }
+ if (edit->timer) {
+ g_timer_reset (edit->timer);
+ }
+ redraw = TRUE;
+ change = TRUE;
+ break;
+ case E_TEP_NOP:
+ break;
+ }
+
+ if (change) {
+ if (edit->layout)
+ g_object_unref (edit->layout);
+ edit->layout = build_layout (text_view, edit->row, edit->text, edit->cell_width);
+ }
+
+ if (!edit->button_down) {
+ PangoRectangle strong_pos, weak_pos;
+ pango_layout_get_cursor_pos (edit->layout, edit->selection_end, &strong_pos, &weak_pos);
+ if (strong_pos.x != weak_pos.x ||
+ strong_pos.y != weak_pos.y ||
+ strong_pos.width != weak_pos.width ||
+ strong_pos.height != weak_pos.height) {
+ if (show_pango_rectangle (edit, weak_pos))
+ redraw = TRUE;
+ }
+ if (show_pango_rectangle (edit, strong_pos)) {
+ redraw = TRUE;
+ }
+ }
+
+ if (redraw) {
+ ect_queue_redraw (text_view, edit->view_col, edit->row);
+ }
+}
+
+static void
+e_cell_text_view_supply_selection (CellEdit *edit,
+ guint time,
+ GdkAtom selection,
+ gchar *data,
+ gint length)
+{
+#if DO_SELECTION
+ GtkClipboard *clipboard;
+
+ clipboard = gtk_widget_get_clipboard (GTK_WIDGET (edit->text_view->canvas), selection);
+
+ if (selection == GDK_SELECTION_PRIMARY) {
+ edit->has_selection = TRUE;
+ }
+
+ gtk_clipboard_set_text (clipboard, data, length);
+#endif
+}
+
+#ifdef DO_SELECTION
+static void
+paste_received (GtkClipboard *clipboard,
+ const gchar *text,
+ gpointer data)
+{
+ CellEdit *edit;
+
+ g_return_if_fail (data);
+
+ edit = (CellEdit *) data;
+
+ if (text && g_utf8_validate (text, strlen (text), NULL)) {
+ ETextEventProcessorCommand command = { 0 };
+ command.action = E_TEP_INSERT;
+ command.position = E_TEP_SELECTION;
+ command.string = (gchar *) text;
+ command.value = strlen (text);
+ command.time = GDK_CURRENT_TIME;
+ e_cell_text_view_command (edit->tep, &command, edit);
+ }
+}
+#endif
+
+static void
+e_cell_text_view_get_selection (CellEdit *edit,
+ GdkAtom selection,
+ guint32 time)
+{
+#if DO_SELECTION
+ gtk_clipboard_request_text (
+ gtk_widget_get_clipboard (GTK_WIDGET (edit->text_view->canvas),
+ selection),
+ paste_received, edit);
+#endif
+}
+
+static void
+_get_tep (CellEdit *edit)
+{
+ if (!edit->tep) {
+ edit->tep = e_text_event_processor_emacs_like_new ();
+ g_signal_connect (
+ edit->tep, "command",
+ G_CALLBACK (e_cell_text_view_command), edit);
+ }
+}
+
+/**
+ * e_cell_text_set_selection:
+ * @cell_view: the given cell view
+ * @col: column of the given cell in the view
+ * @row: row of the given cell in the view
+ * @start: start offset of the selection
+ * @end: end offset of the selection
+ *
+ * Sets the selection of given text cell.
+ * If the current editing cell is not the given cell, this function
+ * will return FALSE;
+ *
+ * If success, the [start, end) part of the text will be selected.
+ *
+ * This API is most likely to be used by a11y implementations.
+ *
+ * Returns: whether the action is successful.
+ */
+gboolean
+e_cell_text_set_selection (ECellView *cell_view,
+ gint col,
+ gint row,
+ gint start,
+ gint end)
+{
+ ECellTextView *ectv;
+ CellEdit *edit;
+ ETextEventProcessorCommand command1 = { 0 }, command2 = { 0 };
+
+ g_return_val_if_fail (cell_view != NULL, FALSE);
+
+ ectv = (ECellTextView *) cell_view;
+ edit = ectv->edit;
+ if (!edit)
+ return FALSE;
+
+ if (edit->view_col != col || edit->row != row)
+ return FALSE;
+
+ command1.action = E_TEP_MOVE;
+ command1.position = E_TEP_VALUE;
+ command1.value = start;
+ e_cell_text_view_command (edit->tep, &command1, edit);
+
+ command2.action = E_TEP_SELECT;
+ command2.position = E_TEP_VALUE;
+ command2.value = end;
+ e_cell_text_view_command (edit->tep, &command2, edit);
+
+ return TRUE;
+}
+
+/**
+ * e_cell_text_get_selection:
+ * @cell_view: the given cell view
+ * @col: column of the given cell in the view
+ * @row: row of the given cell in the view
+ * @start: a pointer to an gint value indicates the start offset of the selection
+ * @end: a pointer to an gint value indicates the end offset of the selection
+ *
+ * Gets the selection of given text cell.
+ * If the current editing cell is not the given cell, this function
+ * will return FALSE;
+ *
+ * This API is most likely to be used by a11y implementations.
+ *
+ * Returns: whether the action is successful.
+ */
+gboolean
+e_cell_text_get_selection (ECellView *cell_view,
+ gint col,
+ gint row,
+ gint *start,
+ gint *end)
+{
+ ECellTextView *ectv;
+ CellEdit *edit;
+
+ g_return_val_if_fail (cell_view != NULL, FALSE);
+
+ ectv = (ECellTextView *) cell_view;
+ edit = ectv->edit;
+ if (!edit)
+ return FALSE;
+
+ if (edit->view_col != col || edit->row != row)
+ return FALSE;
+
+ if (start)
+ *start = edit->selection_start;
+ if (end)
+ *end = edit->selection_end;
+ return TRUE;
+}
+
+/**
+ * e_cell_text_copy_clipboard:
+ * @cell_view: the given cell view
+ * @col: column of the given cell in the view
+ * @row: row of the given cell in the view
+ *
+ * Copys the selected text to clipboard.
+ *
+ * This API is most likely to be used by a11y implementations.
+ */
+void
+e_cell_text_copy_clipboard (ECellView *cell_view,
+ gint col,
+ gint row)
+{
+ ECellTextView *ectv;
+ CellEdit *edit;
+ ETextEventProcessorCommand command = { 0 };
+
+ g_return_if_fail (cell_view != NULL);
+
+ ectv = (ECellTextView *) cell_view;
+ edit = ectv->edit;
+ if (!edit)
+ return;
+
+ if (edit->view_col != col || edit->row != row)
+ return;
+
+ command.action = E_TEP_COPY;
+ command.time = GDK_CURRENT_TIME;
+ e_cell_text_view_command (edit->tep, &command, edit);
+}
+
+/**
+ * e_cell_text_paste_clipboard:
+ * @cell_view: the given cell view
+ * @col: column of the given cell in the view
+ * @row: row of the given cell in the view
+ *
+ * Pastes the text from the clipboardt.
+ *
+ * This API is most likely to be used by a11y implementations.
+ */
+void
+e_cell_text_paste_clipboard (ECellView *cell_view,
+ gint col,
+ gint row)
+{
+ ECellTextView *ectv;
+ CellEdit *edit;
+ ETextEventProcessorCommand command = { 0 };
+
+ g_return_if_fail (cell_view != NULL);
+
+ ectv = (ECellTextView *) cell_view;
+ edit = ectv->edit;
+ if (!edit)
+ return;
+
+ if (edit->view_col != col || edit->row != row)
+ return;
+
+ command.action = E_TEP_PASTE;
+ command.time = GDK_CURRENT_TIME;
+ e_cell_text_view_command (edit->tep, &command, edit);
+}
+
+/**
+ * e_cell_text_delete_selection:
+ * @cell_view: the given cell view
+ * @col: column of the given cell in the view
+ * @row: row of the given cell in the view
+ *
+ * Deletes the selected text of the cell.
+ *
+ * This API is most likely to be used by a11y implementations.
+ */
+void
+e_cell_text_delete_selection (ECellView *cell_view,
+ gint col,
+ gint row)
+{
+ ECellTextView *ectv;
+ CellEdit *edit;
+ ETextEventProcessorCommand command = { 0 };
+
+ g_return_if_fail (cell_view != NULL);
+
+ ectv = (ECellTextView *) cell_view;
+ edit = ectv->edit;
+ if (!edit)
+ return;
+
+ if (edit->view_col != col || edit->row != row)
+ return;
+
+ command.action = E_TEP_DELETE;
+ command.position = E_TEP_SELECTION;
+ e_cell_text_view_command (edit->tep, &command, edit);
+}
+
+/**
+ * e_cell_text_get_text_by_view:
+ * @cell_view: the given cell view
+ * @col: column of the given cell in the model
+ * @row: row of the given cell in the model
+ *
+ * Get the cell's text directly from CellEdit,
+ * during editting this cell, the cell's text value maybe inconsistant
+ * with the text got from table_model.
+ * The caller should free the text after using it.
+ *
+ * This API is most likely to be used by a11y implementations.
+ */
+gchar *
+e_cell_text_get_text_by_view (ECellView *cell_view,
+ gint col,
+ gint row)
+{
+ ECellTextView *ectv;
+ CellEdit *edit;
+ gchar *ret, *model_text;
+
+ g_return_val_if_fail (cell_view != NULL, NULL);
+
+ ectv = (ECellTextView *) cell_view;
+ edit = ectv->edit;
+
+ if (edit && ectv->edit->row == row && ectv->edit->model_col == col) { /* being editted now */
+ ret = g_strdup (edit->text);
+ } else{
+ model_text = e_cell_text_get_text (
+ E_CELL_TEXT (cell_view->ecell),
+ cell_view->e_table_model, col, row);
+ ret = g_strdup (model_text);
+ e_cell_text_free_text (E_CELL_TEXT (cell_view->ecell), model_text);
+ }
+
+ return ret;
+
+}
generated by cgit (git 2.34.1) at 2024-11-12 02:39:11 +0800