/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4; coding: utf-8 -*- * * mootextview.c * * Copyright (C) 2004-2005 by Yevgen Muntyan * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * See COPYING file that comes with this distribution. */ #define MOOEDIT_COMPILATION #include "mooedit/mooedit-private.h" #include "mooedit/mootextview.h" #include "mooedit/mootextbuffer.h" #include "mooutils/moomarshals.h" #include "mooutils/moosignal.h" #include #define LIGHT_BLUE "#EEF6FF" MooTextSearchParams *_moo_text_search_params; static MooTextSearchParams search_params = {-1, NULL, NULL, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE}; static GObject *moo_text_view_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_param); static void moo_text_view_finalize (GObject *object); static void moo_text_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec); static void moo_text_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec); static void moo_text_view_realize (GtkWidget *widget); static void moo_text_view_unrealize (GtkWidget *widget); static gboolean moo_text_view_expose (GtkWidget *widget, GdkEventExpose *event); static void create_current_line_gc (MooTextView *view); static GtkTextBuffer *get_buffer (MooTextView *view); static GtkSourceBuffer *get_source_buffer (MooTextView *view); static MooTextBuffer *get_moo_buffer (MooTextView *view); static void cursor_moved (MooTextView *view, GtkTextIter *where); static void has_selection_notify (MooTextView *view); static void has_text_notify (MooTextView *view); static void goto_line (MooTextView *view); static void can_redo_cb (MooTextView *view, gboolean arg); static void can_undo_cb (MooTextView *view, gboolean arg); static void insert_text_cb (GtkTextBuffer *buffer, GtkTextIter *iter, gchar *text, gint len, MooTextView *view); enum { DELETE_SELECTION, CAN_UNDO, CAN_REDO, FIND, FIND_NEXT, FIND_PREVIOUS, REPLACE, GOTO_LINE, CURSOR_MOVED, LAST_SIGNAL }; static guint signals[LAST_SIGNAL]; enum { PROP_0, PROP_BUFFER, PROP_INDENTER, PROP_HIGHLIGHT_CURRENT_LINE, PROP_CURRENT_LINE_COLOR, PROP_CURRENT_LINE_COLOR_GDK, PROP_SHOW_TABS, PROP_HAS_TEXT, PROP_HAS_SELECTION }; /* MOO_TYPE_TEXT_VIEW */ G_DEFINE_TYPE (MooTextView, moo_text_view, GTK_TYPE_SOURCE_VIEW) static void moo_text_view_class_init (MooTextViewClass *klass) { GObjectClass *gobject_class = G_OBJECT_CLASS (klass); GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass); GtkTextViewClass *text_view_class = GTK_TEXT_VIEW_CLASS (klass); _moo_text_search_params = &search_params; gobject_class->set_property = moo_text_view_set_property; gobject_class->get_property = moo_text_view_get_property; gobject_class->constructor = moo_text_view_constructor; gobject_class->finalize = moo_text_view_finalize; widget_class->key_press_event = _moo_text_view_key_press_event; widget_class->button_press_event = _moo_text_view_button_press_event; widget_class->button_release_event = _moo_text_view_button_release_event; widget_class->motion_notify_event = _moo_text_view_motion_event; widget_class->realize = moo_text_view_realize; widget_class->unrealize = moo_text_view_unrealize; widget_class->expose_event = moo_text_view_expose; text_view_class->move_cursor = _moo_text_view_move_cursor; text_view_class->delete_from_cursor = _moo_text_view_delete_from_cursor; klass->delete_selection = moo_text_view_delete_selection; klass->extend_selection = _moo_text_view_extend_selection; klass->find = _moo_text_view_find; klass->find_next = _moo_text_view_find_next; klass->find_previous = _moo_text_view_find_previous; klass->replace = _moo_text_view_replace; klass->goto_line = goto_line; g_object_class_install_property (gobject_class, PROP_BUFFER, g_param_spec_object ("buffer", "buffer", "buffer", MOO_TYPE_TEXT_BUFFER, G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY)); g_object_class_install_property (gobject_class, PROP_HIGHLIGHT_CURRENT_LINE, g_param_spec_boolean ("highlight-current-line", "highlight-current-line", "highlight-current-line", TRUE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); g_object_class_install_property (gobject_class, PROP_CURRENT_LINE_COLOR_GDK, g_param_spec_boxed ("current-line-color-gdk", "current-line-color-gdk", "current-line-color-gdk", GDK_TYPE_COLOR, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_CURRENT_LINE_COLOR, g_param_spec_string ("current-line-color", "current-line-color", "current-line-color", LIGHT_BLUE, G_PARAM_WRITABLE)); g_object_class_install_property (gobject_class, PROP_SHOW_TABS, g_param_spec_boolean ("show-tabs", "show-tabs", "show-tabs", TRUE, G_PARAM_READWRITE | G_PARAM_CONSTRUCT)); g_object_class_install_property (gobject_class, PROP_INDENTER, g_param_spec_object ("indenter", "indenter", "indenter", MOO_TYPE_INDENTER, G_PARAM_READWRITE)); g_object_class_install_property (gobject_class, PROP_HAS_TEXT, g_param_spec_boolean ("has-text", "has-text", "has-text", FALSE, G_PARAM_READABLE)); g_object_class_install_property (gobject_class, PROP_HAS_SELECTION, g_param_spec_boolean ("has-selection", "has-selection", "has-selection", FALSE, G_PARAM_READABLE)); signals[DELETE_SELECTION] = g_signal_new ("delete-selection", G_OBJECT_CLASS_TYPE (klass), (GSignalFlags) (G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION), G_STRUCT_OFFSET (MooTextViewClass, delete_selection), NULL, NULL, _moo_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[CAN_UNDO] = g_signal_new ("can-undo", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (MooTextViewClass, can_undo), NULL, NULL, _moo_marshal_VOID__BOOLEAN, G_TYPE_NONE, 1, G_TYPE_BOOLEAN); signals[CAN_REDO] = g_signal_new ("can-redo", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, G_STRUCT_OFFSET (MooTextViewClass, can_redo), NULL, NULL, _moo_marshal_VOID__BOOLEAN, G_TYPE_NONE, 1, G_TYPE_BOOLEAN); signals[FIND] = g_signal_new ("find", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (MooTextViewClass, find), NULL, NULL, _moo_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[FIND_NEXT] = g_signal_new ("find-next", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (MooTextViewClass, find_next), NULL, NULL, _moo_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[FIND_PREVIOUS] = g_signal_new ("find-previous", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (MooTextViewClass, find_previous), NULL, NULL, _moo_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[REPLACE] = g_signal_new ("replace", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (MooTextViewClass, replace), NULL, NULL, _moo_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[GOTO_LINE] = g_signal_new ("goto-line", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION, G_STRUCT_OFFSET (MooTextViewClass, goto_line), NULL, NULL, _moo_marshal_VOID__VOID, G_TYPE_NONE, 0); signals[CURSOR_MOVED] = moo_signal_new_cb ("cursor-moved", G_OBJECT_CLASS_TYPE (klass), G_SIGNAL_RUN_LAST, NULL, NULL, NULL, _moo_marshal_VOID__BOXED, G_TYPE_NONE, 1, GTK_TYPE_TEXT_ITER); } static void moo_text_view_init (MooTextView *view) { view->priv = _moo_text_view_private_new (); } static GObject* moo_text_view_constructor (GType type, guint n_construct_properties, GObjectConstructParam *construct_param) { GObject *object; MooTextView *view; object = G_OBJECT_CLASS (moo_text_view_parent_class)->constructor ( type, n_construct_properties, construct_param); view = MOO_TEXT_VIEW (object); view->priv->constructed = TRUE; view->priv->can_undo_handler_id = g_signal_connect_swapped (get_buffer (view), "can-undo", G_CALLBACK (can_undo_cb), view); view->priv->can_redo_handler_id = g_signal_connect_swapped (get_buffer (view), "can-redo", G_CALLBACK (can_redo_cb), view); g_signal_connect_swapped (get_buffer (view), "cursor_moved", G_CALLBACK (cursor_moved), view); g_signal_connect_swapped (get_buffer (view), "notify::has-selection", G_CALLBACK (has_selection_notify), view); g_signal_connect_swapped (get_buffer (view), "notify::has-text", G_CALLBACK (has_text_notify), view); g_signal_connect_after (get_buffer (view), "insert-text", G_CALLBACK (insert_text_cb), view); return object; } static void moo_text_view_finalize (GObject *object) { MooTextView *view = MOO_TEXT_VIEW (object); if (view->priv->indenter) g_object_unref (view->priv->indenter); g_free (view->priv); view->priv = NULL; G_OBJECT_CLASS (moo_text_view_parent_class)->finalize (object); } MooTextView* moo_text_view_new (void) { return g_object_new (MOO_TYPE_TEXT_VIEW, NULL); } void moo_text_view_delete_selection (MooTextView *view) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); gtk_text_buffer_delete_selection (get_buffer (view), TRUE, TRUE); } static void can_redo_cb (MooTextView *view, gboolean arg) { g_signal_emit (view, signals[CAN_REDO], 0, arg, NULL); } static void can_undo_cb (MooTextView *view, gboolean arg) { g_signal_emit (view, signals[CAN_UNDO], 0, arg, NULL); } MooTextViewPrivate* _moo_text_view_private_new (void) { MooTextViewPrivate *priv = g_new0 (MooTextViewPrivate, 1); gdk_color_parse (LIGHT_BLUE, &priv->current_line_color); priv->drag_button = GDK_BUTTON_RELEASE; priv->drag_type = MOO_TEXT_VIEW_DRAG_NONE; priv->drag_start_x = -1; priv->drag_start_y = -1; priv->last_search_stamp = -1; priv->tab_indents = TRUE; priv->shift_tab_unindents = TRUE; priv->backspace_indents = TRUE; priv->enter_indents = TRUE; priv->ctrl_up_down_scrolls = TRUE; priv->ctrl_page_up_down_scrolls = TRUE; return priv; } void moo_text_view_find (MooTextView *view) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); g_signal_emit (view, signals[FIND], 0, NULL); } void moo_text_view_replace (MooTextView *view) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); g_signal_emit (view, signals[REPLACE], 0, NULL); } void moo_text_view_find_next (MooTextView *view) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); g_signal_emit (view, signals[FIND_NEXT], 0, NULL); } void moo_text_view_find_previous (MooTextView *view) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); g_signal_emit (view, signals[FIND_PREVIOUS], 0, NULL); } static void goto_line (MooTextView *view) { moo_text_view_goto_line (view, -1); } void moo_text_view_set_font_from_string (MooTextView *view, const char *font) { PangoFontDescription *font_desc = NULL; g_return_if_fail (MOO_IS_TEXT_VIEW (view)); if (font) font_desc = pango_font_description_from_string (font); gtk_widget_modify_font (GTK_WIDGET (view), font_desc); if (font_desc) pango_font_description_free (font_desc); } gboolean moo_text_view_can_redo (MooTextView *view) { g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), FALSE); return gtk_source_buffer_can_redo (get_source_buffer (view)); } gboolean moo_text_view_can_undo (MooTextView *view) { g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), FALSE); return gtk_source_buffer_can_undo (get_source_buffer (view)); } void moo_text_view_select_all (MooTextView *view) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); g_signal_emit_by_name (view, "select-all", TRUE, NULL); } static void moo_text_view_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec) { MooTextView *view = MOO_TEXT_VIEW (object); GtkTextBuffer *buffer; GdkColor color; switch (prop_id) { case PROP_BUFFER: buffer = g_value_get_object (value); if (buffer && !MOO_IS_TEXT_BUFFER (buffer)) { g_warning ("%s: ignoring buffer not of type MooTextBuffer", G_STRLOC); buffer = g_object_new (MOO_TYPE_TEXT_BUFFER, NULL); } else if (!buffer) { buffer = g_object_new (MOO_TYPE_TEXT_BUFFER, NULL); } else { g_object_ref (buffer); } gtk_text_view_set_buffer (GTK_TEXT_VIEW (view), buffer); g_object_unref (buffer); break; case PROP_INDENTER: moo_text_view_set_indenter (view, g_value_get_object (value)); break; case PROP_HIGHLIGHT_CURRENT_LINE: moo_text_view_set_highlight_current_line (view, g_value_get_boolean (value)); break; case PROP_CURRENT_LINE_COLOR_GDK: moo_text_view_set_current_line_color (view, g_value_get_boxed (value)); break; case PROP_CURRENT_LINE_COLOR: g_return_if_fail (g_value_get_string (value) != NULL); gdk_color_parse (g_value_get_string (value), &color); moo_text_view_set_current_line_color (view, &color); break; case PROP_SHOW_TABS: moo_text_view_set_show_tabs (view, g_value_get_boolean (value)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } static void moo_text_view_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { MooTextView *view = MOO_TEXT_VIEW (object); switch (prop_id) { case PROP_BUFFER: g_value_set_object (value, get_buffer (view)); break; case PROP_INDENTER: g_value_set_object (value, view->priv->indenter); break; case PROP_HIGHLIGHT_CURRENT_LINE: g_value_set_boolean (value, view->priv->highlight_current_line); break; case PROP_CURRENT_LINE_COLOR_GDK: g_value_set_boxed (value, &view->priv->current_line_color); break; case PROP_SHOW_TABS: g_value_set_boolean (value, view->priv->show_tabs); break; case PROP_HAS_TEXT: g_value_set_boolean (value, moo_text_view_has_text (view)); break; case PROP_HAS_SELECTION: g_value_set_boolean (value, moo_text_view_has_selection (view)); break; default: G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); break; } } GType moo_text_selection_type_get_type (void) { static GType type = 0; if (!type) { static const GEnumValue values[] = { { MOO_TEXT_SELECT_CHARS, (char*)"MOO_TEXT_SELECT_CHARS", (char*)"select-chars" }, { MOO_TEXT_SELECT_WORDS, (char*)"MOO_TEXT_SELECT_WORDS", (char*)"select-words" }, { MOO_TEXT_SELECT_LINES, (char*)"MOO_TEXT_SELECT_LINES", (char*)"select-lines" }, { 0, NULL, NULL } }; type = g_enum_register_static ("MooTextSelectionType", values); } return type; } char* moo_text_view_get_selection (MooTextView *view) { GtkTextBuffer *buf; GtkTextIter start, end; g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), NULL); buf = get_buffer (view); if (gtk_text_buffer_get_selection_bounds (buf, &start, &end)) return gtk_text_buffer_get_text (buf, &start, &end, TRUE); else return NULL; } gboolean moo_text_view_has_selection (MooTextView *view) { g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), FALSE); return moo_text_buffer_has_selection (get_moo_buffer (view)); } gboolean moo_text_view_has_text (MooTextView *view) { g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), FALSE); return moo_text_buffer_has_text (get_moo_buffer (view)); } char* moo_text_view_get_text (MooTextView *view) { GtkTextBuffer *buf; GtkTextIter start, end; char *text; g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), NULL); buf = get_buffer (view); gtk_text_buffer_get_bounds (buf, &start, &end); text = gtk_text_buffer_get_text (buf, &start, &end, TRUE); if (text && *text) { return text; } else { g_free (text); return NULL; } } static void insert_text_cb (GtkTextBuffer *buffer, GtkTextIter *iter, gchar *text, gint len, MooTextView *view) { if (view->priv->in_key_press && view->priv->indenter && g_utf8_strlen (text, len) == 1) { gtk_text_buffer_begin_user_action (buffer); moo_indenter_character (view->priv->indenter, buffer, g_utf8_get_char (text), iter); gtk_text_buffer_end_user_action (buffer); } } static void cursor_moved (MooTextView *view, GtkTextIter *where) { g_signal_emit (view, signals[CURSOR_MOVED], 0, where); } static void has_selection_notify (MooTextView *view) { g_object_notify (G_OBJECT (view), "has-selection"); } static void has_text_notify (MooTextView *view) { g_object_notify (G_OBJECT (view), "has-text"); } MooIndenter* moo_text_view_get_indenter (MooTextView *view) { g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), NULL); return view->priv->indenter; } void moo_text_view_set_indenter (MooTextView *view, MooIndenter *indenter) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); g_return_if_fail (!indenter || MOO_IS_INDENTER (indenter)); if (view->priv->indenter == indenter) return; if (view->priv->indenter) g_object_unref (view->priv->indenter); view->priv->indenter = indenter; if (view->priv->indenter) g_object_ref (view->priv->indenter); g_object_notify (G_OBJECT (view), "indenter"); } typedef struct { MooTextView *view; int line; int character; } Scroll; static gboolean do_move_cursor (Scroll *scroll) { GtkTextBuffer *buffer; GtkTextIter iter; g_return_val_if_fail (scroll != NULL, FALSE); g_return_val_if_fail (MOO_IS_TEXT_VIEW (scroll->view), FALSE); g_return_val_if_fail (scroll->line >= 0, FALSE); buffer = get_buffer (scroll->view); if (scroll->line >= gtk_text_buffer_get_line_count (buffer)) scroll->line = gtk_text_buffer_get_line_count (buffer) - 1; gtk_text_buffer_get_iter_at_line (buffer, &iter, scroll->line); if (scroll->character >= 0) { if (scroll->character >= gtk_text_iter_get_chars_in_line (&iter) - 1) scroll->character = gtk_text_iter_get_chars_in_line (&iter) - 2; if (scroll->character < 0) scroll->character = 0; gtk_text_iter_set_line_offset (&iter, scroll->character); } gtk_text_buffer_place_cursor (buffer, &iter); gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (scroll->view), gtk_text_buffer_get_insert (buffer), 0.2, FALSE, 0, 0); return FALSE; } void moo_text_view_move_cursor (MooTextView *view, int line, int character, gboolean in_idle) { Scroll *scroll = g_new (Scroll, 1); scroll->view = view; scroll->line = line; scroll->character = character; if (in_idle) g_idle_add ((GSourceFunc) do_move_cursor, scroll); else do_move_cursor (scroll); } static GtkTextBuffer* get_buffer (MooTextView *view) { return gtk_text_view_get_buffer (GTK_TEXT_VIEW (view)); } static GtkSourceBuffer* get_source_buffer (MooTextView *view) { return GTK_SOURCE_BUFFER (get_buffer (view)); } static MooTextBuffer* get_moo_buffer (MooTextView *view) { return MOO_TEXT_BUFFER (get_buffer (view)); } void moo_text_view_set_highlight_current_line (MooTextView *view, gboolean highlight) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); if (view->priv->highlight_current_line == highlight) return; view->priv->highlight_current_line = highlight; g_object_notify (G_OBJECT (view), "highlight-current-line"); if (GTK_WIDGET_DRAWABLE (view)) gtk_widget_queue_draw (GTK_WIDGET (view)); } void moo_text_view_set_current_line_color (MooTextView *view, const GdkColor *color) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); g_return_if_fail (color != NULL); view->priv->current_line_color = *color; if (view->priv->current_line_gc) { g_object_unref (view->priv->current_line_gc); view->priv->current_line_gc = NULL; create_current_line_gc (view); if (GTK_WIDGET_DRAWABLE (view)) gtk_widget_queue_draw (GTK_WIDGET (view)); } g_object_notify (G_OBJECT (view), "current-line-color-gdk"); } static void moo_text_view_realize (GtkWidget *widget) { GTK_WIDGET_CLASS(moo_text_view_parent_class)->realize (widget); create_current_line_gc (MOO_TEXT_VIEW (widget)); } static void moo_text_view_unrealize (GtkWidget *widget) { MooTextView *view = MOO_TEXT_VIEW (widget); if (view->priv->current_line_gc) g_object_unref (view->priv->current_line_gc); view->priv->current_line_gc = NULL; GTK_WIDGET_CLASS(moo_text_view_parent_class)->unrealize (widget); } static void create_current_line_gc (MooTextView *view) { GtkWidget *widget = GTK_WIDGET (view); GdkColormap *colormap; gboolean success; GdkWindow *window; g_return_if_fail (GTK_WIDGET_REALIZED (widget)); g_return_if_fail (view->priv->current_line_gc == NULL); colormap = gtk_widget_get_colormap (widget); g_return_if_fail (colormap != NULL); window = gtk_text_view_get_window (GTK_TEXT_VIEW (view), GTK_TEXT_WINDOW_TEXT); g_return_if_fail (window != NULL); success = gdk_colormap_alloc_color (colormap, &view->priv->current_line_color, FALSE, TRUE); if (!success) { g_warning ("%s: failed to allocate color", G_STRLOC); view->priv->current_line_color = widget->style->bg[GTK_STATE_NORMAL]; } view->priv->current_line_gc = gdk_gc_new (window); gdk_gc_set_foreground (view->priv->current_line_gc, &view->priv->current_line_color); } static void moo_text_view_draw_current_line (GtkTextView *text_view, GdkEventExpose *event) { GdkRectangle visible_rect; GdkRectangle redraw_rect; GtkTextIter cur; gint y; gint height; gint win_y; gtk_text_buffer_get_iter_at_mark (text_view->buffer, &cur, gtk_text_buffer_get_insert (text_view->buffer)); gtk_text_view_get_line_yrange (text_view, &cur, &y, &height); gtk_text_view_get_visible_rect (text_view, &visible_rect); gtk_text_view_buffer_to_window_coords (text_view, GTK_TEXT_WINDOW_TEXT, visible_rect.x, visible_rect.y, &redraw_rect.x, &redraw_rect.y); gtk_text_view_buffer_to_window_coords (text_view, GTK_TEXT_WINDOW_TEXT, 0, y, NULL, &win_y); redraw_rect.width = visible_rect.width; redraw_rect.height = visible_rect.height; gdk_draw_rectangle (event->window, MOO_TEXT_VIEW(text_view)->priv->current_line_gc, TRUE, redraw_rect.x + MAX (0, gtk_text_view_get_left_margin (text_view) - 1), win_y, redraw_rect.width, height); } static void draw_tab_at_iter (GtkTextView *text_view, GdkEventExpose *event, GtkTextIter *iter) { GdkRectangle rect; GdkPoint points[3]; gtk_text_view_get_iter_location (text_view, iter, &rect); gtk_text_view_buffer_to_window_coords (text_view, GTK_TEXT_WINDOW_TEXT, rect.x, rect.y + rect.height - 2, &points[0].x, &points[0].y); points[1] = points[0]; points[2] = points[0]; points[1].y += 1; points[2].x += 1; points[2].y += 1; gdk_draw_polygon (event->window, GTK_WIDGET(text_view)->style->text_gc[GTK_STATE_NORMAL], FALSE, points, 3); } static void moo_text_view_draw_tab_markers (GtkTextView *text_view, GdkEventExpose *event, GtkTextIter *start, GtkTextIter *end) { while (gtk_text_iter_compare (start, end) < 0) { if (gtk_text_iter_get_char (start) == '\t') draw_tab_at_iter (text_view, event, start); if (!gtk_text_iter_forward_char (start)) break; } } static gboolean moo_text_view_expose (GtkWidget *widget, GdkEventExpose *event) { gboolean handled; MooTextView *view = MOO_TEXT_VIEW (widget); GtkTextView *text_view = GTK_TEXT_VIEW (widget); GdkWindow *text_window = gtk_text_view_get_window (text_view, GTK_TEXT_WINDOW_TEXT); if (view->priv->highlight_current_line && event->window == text_window) { moo_text_view_draw_current_line (text_view, event); } handled = GTK_WIDGET_CLASS(moo_text_view_parent_class)->expose_event (widget, event); if (event->window == text_window && view->priv->show_tabs) { GdkRectangle visible_rect; GtkTextIter start, end; gtk_text_view_get_visible_rect (text_view, &visible_rect); gtk_text_view_get_line_at_y (text_view, &start, visible_rect.y, NULL); gtk_text_iter_backward_line (&start); gtk_text_view_get_line_at_y (text_view, &end, visible_rect.y + visible_rect.height, NULL); gtk_text_iter_forward_line (&end); moo_text_view_draw_tab_markers (text_view, event, &start, &end); } return handled; } void moo_text_view_set_show_tabs (MooTextView *view, gboolean show) { g_return_if_fail (MOO_IS_TEXT_VIEW (view)); if (view->priv->show_tabs == show) return; view->priv->show_tabs = show; g_object_notify (G_OBJECT (view), "show-tabs"); if (GTK_WIDGET_DRAWABLE (view)) gtk_widget_queue_draw (GTK_WIDGET (view)); } GtkTextTag* moo_text_view_lookup_tag (MooTextView *view, const char *name) { GtkTextBuffer *buffer; GtkTextTagTable *table; g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), NULL); g_return_val_if_fail (name != NULL, NULL); buffer = get_buffer (view); table = gtk_text_buffer_get_tag_table (buffer); return gtk_text_tag_table_lookup (table, name); }