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medit/moo/mooedit/mootextview.c

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/* -*- 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 <muntyan@math.tamu.edu>
*
* 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/mootextview-private.h"
#include "mooedit/mootextview.h"
#include "mooedit/mootextbuffer.h"
#include "mooedit/mootextfind.h"
#include "mooutils/moomarshals.h"
#include "mooutils/mooutils-gobject.h"
#include "mooutils/mooundomanager.h"
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include <string.h>
#define LIGHT_BLUE "#EEF6FF"
#define BOOL_CMP(b1,b2) ((b1 && b2) || (!b1 && !b2))
#define UPDATE_PRIORITY (GTK_TEXT_VIEW_PRIORITY_VALIDATE - 5)
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 gboolean moo_text_view_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gboolean moo_text_view_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static void moo_text_view_cut_clipboard (GtkTextView *text_view);
static void moo_text_view_paste_clipboard (GtkTextView *text_view);
static void moo_text_view_populate_popup(GtkTextView *text_view,
GtkMenu *menu);
static void create_current_line_gc (MooTextView *view);
static GtkTextBuffer *get_buffer (MooTextView *view);
static MooTextBuffer *get_moo_buffer (MooTextView *view);
static GtkTextMark *get_insert (MooTextView *view);
static void cursor_moved (MooTextView *view,
GtkTextIter *where);
static void proxy_prop_notify (MooTextView *view,
GParamSpec *pspec);
static void find_interactive (MooTextView *view);
static void replace_interactive (MooTextView *view);
static void find_next_interactive (MooTextView *view);
static void find_prev_interactive (MooTextView *view);
static void goto_line_interactive (MooTextView *view);
static void insert_text_cb (MooTextView *view,
GtkTextIter *iter,
gchar *text,
gint len);
static gboolean moo_text_view_char_inserted (MooTextView *view,
GtkTextIter *where,
guint character);
static void set_draw_tabs (MooTextView *view,
gboolean draw);
static void set_draw_trailing_spaces (MooTextView *view,
gboolean draw);
static void set_manage_clipboard (MooTextView *view,
gboolean manage);
static void selection_changed (MooTextView *view,
MooTextBuffer *buffer);
static void highlighting_changed (GtkTextView *view,
const GtkTextIter *start,
const GtkTextIter *end);
static void overwrite_changed (MooTextView *view);
static void check_cursor_blink (MooTextView *view);
static void moo_text_view_draw_cursor (GtkTextView *view,
GdkEventExpose *event);
enum {
DELETE_SELECTION,
FIND_INTERACTIVE,
FIND_NEXT_INTERACTIVE,
FIND_PREV_INTERACTIVE,
REPLACE_INTERACTIVE,
GOTO_LINE_INTERACTIVE,
CURSOR_MOVED,
CHAR_INSERTED,
UNDO,
REDO,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL];
enum {
PROP_0,
PROP_BUFFER,
PROP_INDENTER,
PROP_HIGHLIGHT_CURRENT_LINE,
PROP_CHECK_BRACKETS,
PROP_CURRENT_LINE_COLOR,
PROP_CURRENT_LINE_COLOR_GDK,
PROP_DRAW_TABS,
PROP_DRAW_TRAILING_SPACES,
PROP_HAS_TEXT,
PROP_HAS_SELECTION,
PROP_CAN_UNDO,
PROP_CAN_REDO,
PROP_MANAGE_CLIPBOARD
};
/* MOO_TYPE_TEXT_VIEW */
G_DEFINE_TYPE (MooTextView, moo_text_view, GTK_TYPE_TEXT_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);
GtkBindingSet *binding_set;
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;
widget_class->focus_in_event = moo_text_view_focus_in;
widget_class->focus_out_event = moo_text_view_focus_out;
#if 0
widget_class->drag_data_received = _moo_text_view_drag_data_received;
widget_class->drag_drop = _moo_text_view_drag_drop;
widget_class->drag_leave = _moo_text_view_drag_leave;
widget_class->drag_motion = _moo_text_view_drag_motion;
#endif
text_view_class->move_cursor = _moo_text_view_move_cursor;
text_view_class->page_horizontally = _moo_text_view_page_horizontally;
text_view_class->delete_from_cursor = _moo_text_view_delete_from_cursor;
text_view_class->cut_clipboard = moo_text_view_cut_clipboard;
text_view_class->paste_clipboard = moo_text_view_paste_clipboard;
text_view_class->populate_popup = moo_text_view_populate_popup;
klass->delete_selection = moo_text_view_delete_selection;
klass->extend_selection = _moo_text_view_extend_selection;
klass->find_interactive = find_interactive;
klass->find_next_interactive = find_next_interactive;
klass->find_prev_interactive = find_prev_interactive;
klass->replace_interactive = replace_interactive;
klass->goto_line_interactive = goto_line_interactive;
klass->undo = moo_text_view_undo;
klass->redo = moo_text_view_redo;
klass->char_inserted = moo_text_view_char_inserted;
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_CHECK_BRACKETS,
g_param_spec_boolean ("check-brackets",
"check-brackets",
"check-brackets",
TRUE,
G_PARAM_READWRITE));
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_DRAW_TABS,
g_param_spec_boolean ("draw-tabs",
"draw-tabs",
"draw-tabs",
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_DRAW_TRAILING_SPACES,
g_param_spec_boolean ("draw-trailing-spaces",
"draw-trailing-spaces",
"draw-trailing-spaces",
FALSE,
G_PARAM_READWRITE));
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));
g_object_class_install_property (gobject_class,
PROP_CAN_UNDO,
g_param_spec_boolean ("can-undo",
"can-undo",
"can-undo",
FALSE,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_CAN_REDO,
g_param_spec_boolean ("can-redo",
"can-redo",
"can-redo",
FALSE,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_MANAGE_CLIPBOARD,
g_param_spec_boolean ("manage-clipboard",
"manage-clipboard",
"manage-clipboard",
TRUE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT));
signals[UNDO] =
g_signal_new ("undo",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooTextViewClass, undo),
g_signal_accumulator_true_handled, NULL,
_moo_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
signals[REDO] =
g_signal_new ("redo",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooTextViewClass, redo),
g_signal_accumulator_true_handled, NULL,
_moo_marshal_BOOLEAN__VOID,
G_TYPE_BOOLEAN, 0);
signals[DELETE_SELECTION] =
g_signal_new ("delete-selection",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooTextViewClass, delete_selection),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[FIND_INTERACTIVE] =
g_signal_new ("find-interactive",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooTextViewClass, find_interactive),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[FIND_NEXT_INTERACTIVE] =
g_signal_new ("find-next-interactive",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooTextViewClass, find_next_interactive),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[FIND_PREV_INTERACTIVE] =
g_signal_new ("find-prev-interactive",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooTextViewClass, find_prev_interactive),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[REPLACE_INTERACTIVE] =
g_signal_new ("replace-interactive",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooTextViewClass, replace_interactive),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[GOTO_LINE_INTERACTIVE] =
g_signal_new ("goto-line-interactive",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (MooTextViewClass, goto_line_interactive),
NULL, NULL,
_moo_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[CHAR_INSERTED] =
g_signal_new ("char-inserted",
G_OBJECT_CLASS_TYPE (klass),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (MooTextViewClass, char_inserted),
g_signal_accumulator_true_handled, NULL,
_moo_marshal_BOOLEAN__BOXED_UINT,
G_TYPE_BOOLEAN, 2,
GTK_TYPE_TEXT_ITER | G_SIGNAL_TYPE_STATIC_SCOPE,
G_TYPE_UINT);
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 | G_SIGNAL_TYPE_STATIC_SCOPE);
binding_set = gtk_binding_set_by_class (klass);
gtk_binding_entry_add_signal (binding_set, GDK_z, GDK_CONTROL_MASK,
"undo", 0);
gtk_binding_entry_add_signal (binding_set, GDK_z, GDK_CONTROL_MASK | GDK_SHIFT_MASK,
"redo", 0);
}
static void moo_text_view_init (MooTextView *view)
{
char *name;
view->priv = g_new0 (MooTextViewPrivate, 1);
gdk_color_parse (LIGHT_BLUE, &view->priv->current_line_color);
view->priv->drag_button = GDK_BUTTON_RELEASE;
view->priv->drag_type = MOO_TEXT_VIEW_DRAG_NONE;
view->priv->drag_start_x = -1;
view->priv->drag_start_y = -1;
view->priv->last_search_stamp = -1;
view->priv->tab_indents = TRUE;
view->priv->shift_tab_unindents = TRUE;
view->priv->backspace_indents = TRUE;
view->priv->enter_indents = TRUE;
view->priv->ctrl_up_down_scrolls = TRUE;
view->priv->ctrl_page_up_down_scrolls = TRUE;
view->priv->smart_home_end = TRUE;
view->priv->check_brackets = TRUE;
#if 0
gtk_drag_dest_unset (GTK_WIDGET (view));
gtk_drag_dest_set (GTK_WIDGET (view), 0, NULL, 0, GDK_ACTION_DEFAULT);
view->priv->targets = gtk_target_list_new (NULL, 0);
gtk_target_list_add_text_targets (view->priv->targets, DND_TARGET_TEXT);
#endif
name = g_strdup_printf ("moo-text-view-%p", view);
gtk_widget_set_name (GTK_WIDGET (view), name);
g_free (name);
}
static GObject*
moo_text_view_constructor (GType type,
guint n_construct_properties,
GObjectConstructParam *construct_param)
{
GObject *object;
MooTextView *view;
MooUndoMgr *undo_mgr;
GtkTextIter iter;
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;
g_object_set (get_buffer (view), "check-brackets",
view->priv->check_brackets, NULL);
g_signal_connect_swapped (get_buffer (view), "cursor_moved",
G_CALLBACK (cursor_moved), view);
g_signal_connect_swapped (get_buffer (view), "selection-changed",
G_CALLBACK (selection_changed), view);
g_signal_connect_swapped (get_buffer (view), "highlighting-changed",
G_CALLBACK (highlighting_changed), view);
g_signal_connect_swapped (get_buffer (view), "notify::has-selection",
G_CALLBACK (proxy_prop_notify), view);
g_signal_connect_swapped (get_buffer (view), "notify::has-text",
G_CALLBACK (proxy_prop_notify), view);
undo_mgr = moo_text_buffer_get_undo_mgr (get_moo_buffer (view));
g_signal_connect_swapped (undo_mgr, "notify::can-undo",
G_CALLBACK (proxy_prop_notify), view);
g_signal_connect_swapped (undo_mgr, "notify::can-redo",
G_CALLBACK (proxy_prop_notify), view);
g_signal_connect_data (get_buffer (view), "insert-text",
G_CALLBACK (insert_text_cb), view,
NULL, G_CONNECT_AFTER | G_CONNECT_SWAPPED);
gtk_text_buffer_get_start_iter (get_buffer (view), &iter);
view->priv->dnd_mark = gtk_text_buffer_create_mark (get_buffer (view), NULL, &iter, FALSE);
gtk_text_mark_set_visible (view->priv->dnd_mark, FALSE);
g_signal_connect (view, "notify::overwrite", G_CALLBACK (overwrite_changed), NULL);
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);
/* XXX free view->priv->targets */
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
find_interactive (MooTextView *view)
{
moo_text_view_run_find (GTK_TEXT_VIEW (view));
}
static void
replace_interactive (MooTextView *view)
{
moo_text_view_run_replace (GTK_TEXT_VIEW (view));
}
static void
find_next_interactive (MooTextView *view)
{
moo_text_view_run_find_next (GTK_TEXT_VIEW (view));
}
static void
find_prev_interactive (MooTextView *view)
{
moo_text_view_run_find_prev (GTK_TEXT_VIEW (view));
}
static void
goto_line_interactive (MooTextView *view)
{
moo_text_view_run_goto_line (GTK_TEXT_VIEW (view));
}
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);
}
static MooUndoMgr *
get_undo_mgr (MooTextView *view)
{
return moo_text_buffer_get_undo_mgr (get_moo_buffer (view));
}
gboolean
moo_text_view_can_redo (MooTextView *view)
{
g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), FALSE);
return moo_undo_mgr_can_redo (get_undo_mgr (view));
}
gboolean
moo_text_view_can_undo (MooTextView *view)
{
g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), FALSE);
return moo_undo_mgr_can_undo (get_undo_mgr (view));
}
void
moo_text_view_begin_not_undoable_action (MooTextView *view)
{
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
moo_undo_mgr_freeze (get_undo_mgr (view));
gtk_text_buffer_begin_user_action (get_buffer (view));
}
void
moo_text_view_end_not_undoable_action (MooTextView *view)
{
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
gtk_text_buffer_end_user_action (get_buffer (view));
moo_undo_mgr_thaw (get_undo_mgr (view));
}
gboolean
moo_text_view_redo (MooTextView *view)
{
g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), FALSE);
if (moo_undo_mgr_can_redo (get_undo_mgr (view)))
{
moo_text_buffer_freeze (get_moo_buffer (view));
moo_undo_mgr_redo (get_undo_mgr (view));
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
get_insert (view),
0, FALSE, 0, 0);
moo_text_buffer_thaw (get_moo_buffer (view));
return TRUE;
}
else
{
return FALSE;
}
}
gboolean
moo_text_view_undo (MooTextView *view)
{
g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), FALSE);
if (moo_undo_mgr_can_undo (get_undo_mgr (view)))
{
moo_text_buffer_freeze (get_moo_buffer (view));
moo_undo_mgr_undo (get_undo_mgr (view));
gtk_text_view_scroll_to_mark (GTK_TEXT_VIEW (view),
get_insert (view),
0, FALSE, 0, 0);
moo_text_buffer_thaw (get_moo_buffer (view));
return TRUE;
}
else
{
return FALSE;
}
}
static void
moo_text_view_cut_clipboard (GtkTextView *text_view)
{
MooTextBuffer *buffer = get_moo_buffer (MOO_TEXT_VIEW (text_view));
moo_text_buffer_begin_interactive_action (buffer);
GTK_TEXT_VIEW_CLASS(moo_text_view_parent_class)->cut_clipboard (text_view);
moo_text_buffer_end_interactive_action (buffer);
}
static void
moo_text_view_paste_clipboard (GtkTextView *text_view)
{
MooTextBuffer *buffer = get_moo_buffer (MOO_TEXT_VIEW (text_view));
moo_text_buffer_begin_interactive_action (buffer);
GTK_TEXT_VIEW_CLASS(moo_text_view_parent_class)->paste_clipboard (text_view);
moo_text_buffer_end_interactive_action (buffer);
}
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 = moo_text_buffer_new (NULL);
}
else if (!buffer)
{
buffer = moo_text_buffer_new (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_CHECK_BRACKETS:
view->priv->check_brackets = g_value_get_boolean (value);
if (view->priv->constructed)
g_object_set (get_buffer (view), "check-brackets",
view->priv->check_brackets, NULL);
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_DRAW_TABS:
set_draw_tabs (view, g_value_get_boolean (value));
break;
case PROP_DRAW_TRAILING_SPACES:
set_draw_trailing_spaces (view, g_value_get_boolean (value));
break;
case PROP_MANAGE_CLIPBOARD:
set_manage_clipboard (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);
gboolean val;
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_CHECK_BRACKETS:
g_object_get (get_buffer (view), "check-brackets", &val, NULL);
g_value_set_boolean (value, val);
break;
case PROP_CURRENT_LINE_COLOR_GDK:
g_value_set_boxed (value, &view->priv->current_line_color);
break;
case PROP_DRAW_TABS:
g_value_set_boolean (value, view->priv->draw_tabs != 0);
break;
case PROP_DRAW_TRAILING_SPACES:
g_value_set_boolean (value, view->priv->draw_trailing_spaces != 0);
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;
case PROP_CAN_UNDO:
g_value_set_boolean (value, moo_text_view_can_undo (view));
break;
case PROP_CAN_REDO:
g_value_set_boolean (value, moo_text_view_can_redo (view));
break;
case PROP_MANAGE_CLIPBOARD:
g_value_set_boolean (value, view->priv->manage_clipboard != 0);
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 (MooTextView *view,
GtkTextIter *iter,
gchar *text,
gint len)
{
if (view->priv->in_key_press && g_utf8_strlen (text, len) == 1)
{
view->priv->in_key_press = FALSE;
view->priv->char_inserted = g_utf8_get_char (text);
view->priv->char_inserted_pos = *iter;
}
}
void
_moo_text_view_check_char_inserted (MooTextView *view)
{
if (view->priv->char_inserted)
{
gboolean result;
g_signal_emit (view, signals[CHAR_INSERTED], 0,
&view->priv->char_inserted_pos,
(guint) view->priv->char_inserted,
&result);
view->priv->char_inserted = 0;
}
}
static gboolean
moo_text_view_char_inserted (MooTextView *view,
GtkTextIter *where,
guint character)
{
if (view->priv->indenter)
{
GtkTextBuffer *buffer = get_buffer (view);
gtk_text_buffer_begin_user_action (buffer);
moo_indenter_character (view->priv->indenter,
character, where);
gtk_text_buffer_end_user_action (buffer);
return TRUE;
}
return FALSE;
}
static void
cursor_moved (MooTextView *view,
GtkTextIter *where)
{
g_signal_emit (view, signals[CURSOR_MOVED], 0, where);
}
static void
proxy_prop_notify (MooTextView *view,
GParamSpec *pspec)
{
g_object_notify (G_OBJECT (view), pspec->name);
}
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))
scroll->character = gtk_text_iter_get_chars_in_line (&iter);
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);
g_free (scroll);
return FALSE;
}
void
moo_text_view_move_cursor (MooTextView *view,
int line,
int character,
gboolean in_idle)
{
Scroll *scroll;
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
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);
}
void
moo_text_view_get_cursor (MooTextView *view,
GtkTextIter *iter)
{
GtkTextBuffer *buffer;
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
g_return_if_fail (iter != NULL);
buffer = get_buffer (view);
gtk_text_buffer_get_iter_at_mark (buffer, iter,
gtk_text_buffer_get_insert (buffer));
}
static GtkTextBuffer*
get_buffer (MooTextView *view)
{
return gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
}
static MooTextBuffer*
get_moo_buffer (MooTextView *view)
{
return MOO_TEXT_BUFFER (get_buffer (view));
}
static GtkTextMark*
get_insert (MooTextView *view)
{
return gtk_text_buffer_get_insert (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));
if (color)
{
view->priv->current_line_color = *color;
view->priv->highlight_current_line = TRUE;
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_freeze_notify (G_OBJECT (view));
g_object_notify (G_OBJECT (view), "current-line-color-gdk");
g_object_notify (G_OBJECT (view), "current-line-color");
g_object_notify (G_OBJECT (view), "highlight-current-line");
g_object_thaw_notify (G_OBJECT (view));
}
else
{
view->priv->highlight_current_line = FALSE;
if (view->priv->current_line_gc)
{
g_object_unref (view->priv->current_line_gc);
view->priv->current_line_gc = NULL;
}
if (GTK_WIDGET_DRAWABLE (view))
gtk_widget_queue_draw (GTK_WIDGET (view));
g_object_notify (G_OBJECT (view), "highlight-current-line");
}
}
static void
add_selection_clipboard (MooTextView *view)
{
GtkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (view), GDK_SELECTION_PRIMARY);
gtk_text_buffer_add_selection_clipboard (get_buffer (view), clipboard);
}
static void
remove_selection_clipboard (MooTextView *view)
{
GtkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (view), GDK_SELECTION_PRIMARY);
gtk_text_buffer_remove_selection_clipboard (get_buffer (view), clipboard);
}
static void
clipboard_get_selection (G_GNUC_UNUSED GtkClipboard *clipboard,
GtkSelectionData *selection_data,
G_GNUC_UNUSED guint info,
gpointer data)
{
MooTextView *view = data;
GtkTextIter start, end;
if (gtk_text_buffer_get_selection_bounds (get_buffer (view), &start, &end))
{
char *text = gtk_text_iter_get_text (&start, &end);
gtk_selection_data_set_text (selection_data, text, -1);
g_free (text);
}
}
static const GtkTargetEntry targets[] = {
{ (char*) "STRING", 0, 0 },
{ (char*) "TEXT", 0, 0 },
{ (char*) "COMPOUND_TEXT", 0, 0 },
{ (char*) "UTF8_STRING", 0, 0 }
};
static void
clear_clipboard (MooTextView *view)
{
GtkClipboard *clipboard;
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (view),
GDK_SELECTION_PRIMARY);
if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (view))
gtk_clipboard_clear (clipboard);
}
static void
selection_changed (MooTextView *view,
MooTextBuffer *buffer)
{
GtkClipboard *clipboard;
if (!view->priv->manage_clipboard)
return;
clipboard = gtk_widget_get_clipboard (GTK_WIDGET (view),
GDK_SELECTION_PRIMARY);
if (moo_text_buffer_has_selection (buffer))
gtk_clipboard_set_with_owner (clipboard, targets,
G_N_ELEMENTS (targets),
clipboard_get_selection,
NULL, G_OBJECT (view));
else
clear_clipboard (view);
}
static void
set_manage_clipboard (MooTextView *view,
gboolean manage)
{
if (BOOL_CMP (view->priv->manage_clipboard, manage))
return;
view->priv->manage_clipboard = manage;
if (GTK_WIDGET_REALIZED (view))
{
if (manage)
{
remove_selection_clipboard (view);
selection_changed (view, get_moo_buffer (view));
}
else
{
clear_clipboard (view);
add_selection_clipboard (view);
}
}
g_object_notify (G_OBJECT (view), "manage-clipboard");
}
static void
moo_text_view_realize (GtkWidget *widget)
{
MooTextView *view = MOO_TEXT_VIEW (widget);
GTK_WIDGET_CLASS(moo_text_view_parent_class)->realize (widget);
create_current_line_gc (view);
if (view->priv->manage_clipboard)
{
remove_selection_clipboard (view);
selection_changed (view, get_moo_buffer (view));
}
}
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;
if (view->priv->manage_clipboard)
{
clear_clipboard (view);
add_selection_clipboard (view);
}
if (view->priv->blink_timeout)
{
g_warning ("%s: oops", G_STRLOC);
g_source_remove (view->priv->blink_timeout);
view->priv->blink_timeout = 0;
}
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_tabs (GtkTextView *text_view,
GdkEventExpose *event,
const GtkTextIter *start,
const GtkTextIter *end)
{
GtkTextIter iter = *start;
while (gtk_text_iter_compare (&iter, end) < 0)
{
if (gtk_text_iter_get_char (&iter) == '\t')
draw_tab_at_iter (text_view, event, &iter);
if (!gtk_text_iter_forward_char (&iter))
break;
}
}
static void
moo_text_view_draw_trailing_spaces (GtkTextView *text_view,
GdkEventExpose *event,
const GtkTextIter *start,
const GtkTextIter *end)
{
GtkTextIter iter = *start;
do
{
if (!gtk_text_iter_ends_line (&iter))
gtk_text_iter_forward_to_line_end (&iter);
while (!gtk_text_iter_starts_line (&iter))
{
gunichar c;
gtk_text_iter_backward_char (&iter);
c = gtk_text_iter_get_char (&iter);
if (g_unichar_isspace (c))
draw_tab_at_iter (text_view, event, &iter);
else
break;
}
gtk_text_iter_forward_line (&iter);
}
while (gtk_text_iter_compare (&iter, end) < 0);
}
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);
GtkTextIter start, end;
if (view->priv->highlight_current_line &&
event->window == text_window && view->priv->current_line_gc)
moo_text_view_draw_current_line (text_view, event);
if (event->window == text_window)
{
int first_line, last_line;
GdkRectangle rect = event->area;
gtk_text_view_window_to_buffer_coords (text_view,
GTK_TEXT_WINDOW_TEXT,
rect.x,
rect.y,
&rect.x,
&rect.y);
gtk_text_view_get_line_at_y (text_view, &start, rect.y, NULL);
gtk_text_view_get_line_at_y (text_view, &end, rect.y + rect.height, NULL);
gtk_text_iter_forward_line (&end);
first_line = gtk_text_iter_get_line (&start);
last_line = gtk_text_iter_get_line (&end);
/* it reports bogus values sometimes, like on opening huge file */
if (last_line - first_line < 2000)
_moo_text_buffer_ensure_highlight (get_moo_buffer (view),
first_line, last_line);
}
handled = GTK_WIDGET_CLASS(moo_text_view_parent_class)->expose_event (widget, event);
if (event->window == text_window && view->priv->draw_tabs)
moo_text_view_draw_tabs (text_view, event, &start, &end);
if (event->window == text_window && view->priv->draw_trailing_spaces)
moo_text_view_draw_trailing_spaces (text_view, event, &start, &end);
if (event->window == text_window && view->priv->cursor_visible)
moo_text_view_draw_cursor (text_view, event);
return handled;
}
static void
highlighting_changed (GtkTextView *text_view,
const GtkTextIter *start,
const GtkTextIter *end)
{
GdkRectangle visible, changed, update;
int y, height;
if (!GTK_WIDGET_DRAWABLE (text_view))
return;
gtk_text_view_get_visible_rect (text_view, &visible);
gtk_text_view_get_line_yrange (text_view, start, &changed.y, &height);
gtk_text_view_get_line_yrange (text_view, end, &y, &height);
changed.height = y - changed.y + height;
changed.x = visible.x;
changed.width = visible.width;
if (gdk_rectangle_intersect (&changed, &visible, &update))
{
GdkWindow *window = gtk_text_view_get_window (text_view, GTK_TEXT_WINDOW_TEXT);
gtk_text_view_buffer_to_window_coords (text_view,
GTK_TEXT_WINDOW_TEXT,
update.x,
update.y,
&update.x,
&update.y);
gdk_window_invalidate_rect (window, &update, TRUE);
}
}
static void
set_draw_tabs (MooTextView *view,
gboolean draw)
{
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
if (BOOL_CMP (view->priv->draw_tabs, draw))
return;
view->priv->draw_tabs = draw != 0;
g_object_notify (G_OBJECT (view), "draw-tabs");
if (GTK_WIDGET_DRAWABLE (view))
gtk_widget_queue_draw (GTK_WIDGET (view));
}
static void
set_draw_trailing_spaces (MooTextView *view,
gboolean draw)
{
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
if (BOOL_CMP (view->priv->draw_trailing_spaces, draw))
return;
view->priv->draw_trailing_spaces = draw != 0;
g_object_notify (G_OBJECT (view), "draw-trailing-spaces");
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);
}
void
moo_text_view_set_cursor_color (MooTextView *view,
const GdkColor *color)
{
char *rc_string;
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
if (!color)
{
gtk_widget_ensure_style (GTK_WIDGET (view));
g_return_if_fail (GTK_WIDGET (view)->style != NULL);
color = &GTK_WIDGET(view)->style->text[GTK_STATE_NORMAL];
}
g_return_if_fail (color != NULL);
rc_string = g_strdup_printf (
"style \"%p\"\n"
"{\n"
" GtkWidget::cursor-color = \"#%02x%02x%02x\"\n"
"}\n"
"widget \"*.%s\" style \"%p\"\n",
view,
color->red >> 8, color->green >> 8, color->blue >> 8,
gtk_widget_get_name (GTK_WIDGET (view)), view
);
gtk_rc_parse_string (rc_string);
g_free (rc_string);
}
void
moo_text_view_set_lang (MooTextView *view,
MooLang *lang)
{
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
moo_text_buffer_set_lang (get_moo_buffer (view), lang);
gtk_widget_queue_draw (GTK_WIDGET (view));
}
MooLang*
moo_text_view_get_lang (MooTextView *view)
{
g_return_val_if_fail (MOO_IS_TEXT_VIEW (view), NULL);
return moo_text_buffer_get_lang (get_moo_buffer (view));
}
void
moo_text_view_apply_scheme (MooTextView *view,
MooTextStyleScheme *scheme)
{
GdkColor color;
GdkColor *color_ptr;
MooTextBuffer *buffer;
GtkWidget *widget;
g_return_if_fail (scheme != NULL);
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
widget = GTK_WIDGET (view);
buffer = get_moo_buffer (view);
gtk_widget_ensure_style (widget);
color_ptr = NULL;
if (scheme->text_colors[MOO_TEXT_COLOR_FG])
{
if (gdk_color_parse (scheme->text_colors[MOO_TEXT_COLOR_FG], &color))
color_ptr = &color;
else
g_warning ("%s: could not parse color '%s'", G_STRLOC,
scheme->text_colors[MOO_TEXT_COLOR_FG]);
}
gtk_widget_modify_text (widget, GTK_STATE_NORMAL, color_ptr);
gtk_widget_modify_text (widget, GTK_STATE_ACTIVE, color_ptr);
gtk_widget_modify_text (widget, GTK_STATE_PRELIGHT, color_ptr);
gtk_widget_modify_text (widget, GTK_STATE_INSENSITIVE, color_ptr);
moo_text_view_set_cursor_color (view, color_ptr);
color_ptr = NULL;
if (scheme->text_colors[MOO_TEXT_COLOR_BG])
{
if (gdk_color_parse (scheme->text_colors[MOO_TEXT_COLOR_BG], &color))
color_ptr = &color;
else
g_warning ("%s: could not parse color '%s'", G_STRLOC,
scheme->text_colors[MOO_TEXT_COLOR_BG]);
}
gtk_widget_modify_base (widget, GTK_STATE_NORMAL, color_ptr);
gtk_widget_modify_base (widget, GTK_STATE_ACTIVE, color_ptr);
gtk_widget_modify_base (widget, GTK_STATE_PRELIGHT, color_ptr);
gtk_widget_modify_base (widget, GTK_STATE_INSENSITIVE, color_ptr);
color_ptr = NULL;
if (scheme->text_colors[MOO_TEXT_COLOR_SEL_FG])
{
if (gdk_color_parse (scheme->text_colors[MOO_TEXT_COLOR_SEL_FG], &color))
color_ptr = &color;
else
g_warning ("%s: could not parse color '%s'", G_STRLOC,
scheme->text_colors[MOO_TEXT_COLOR_SEL_FG]);
}
gtk_widget_modify_text (widget, GTK_STATE_SELECTED, color_ptr);
color_ptr = NULL;
if (scheme->text_colors[MOO_TEXT_COLOR_SEL_BG])
{
if (gdk_color_parse (scheme->text_colors[MOO_TEXT_COLOR_SEL_BG], &color))
color_ptr = &color;
else
g_warning ("%s: could not parse color '%s'", G_STRLOC,
scheme->text_colors[MOO_TEXT_COLOR_SEL_BG]);
}
gtk_widget_modify_base (widget, GTK_STATE_SELECTED, color_ptr);
color_ptr = NULL;
if (scheme->text_colors[MOO_TEXT_COLOR_CUR_LINE])
{
if (gdk_color_parse (scheme->text_colors[MOO_TEXT_COLOR_CUR_LINE], &color))
color_ptr = &color;
else
g_warning ("%s: could not parse color '%s'", G_STRLOC,
scheme->text_colors[MOO_TEXT_COLOR_CUR_LINE]);
}
moo_text_view_set_current_line_color (view, color_ptr);
moo_text_view_set_highlight_current_line (view, color_ptr != NULL);
moo_text_buffer_apply_scheme (buffer, scheme);
}
void
moo_text_view_strip_whitespace (MooTextView *view)
{
GtkTextBuffer *buffer;
GtkTextIter iter;
g_return_if_fail (MOO_IS_TEXT_VIEW (view));
buffer = get_buffer (view);
gtk_text_buffer_begin_user_action (buffer);
for (gtk_text_buffer_get_start_iter (buffer, &iter);
!gtk_text_iter_is_end (&iter);
gtk_text_iter_forward_line (&iter))
{
GtkTextIter end;
char *slice, *p;
int len;
if (gtk_text_iter_ends_line (&iter))
continue;
end = iter;
gtk_text_iter_forward_to_line_end (&end);
slice = gtk_text_buffer_get_slice (buffer, &iter, &end, TRUE);
len = strlen (slice);
g_assert (len > 0);
for (p = slice + len; p > slice && (p[-1] == ' ' || p[-1] == '\t'); --p) ;
if (*p)
{
gtk_text_iter_forward_chars (&iter, g_utf8_pointer_to_offset (slice, p));
gtk_text_buffer_delete (buffer, &iter, &end);
}
g_free (slice);
}
gtk_text_buffer_end_user_action (buffer);
}
static void
moo_text_view_populate_popup (GtkTextView *text_view,
GtkMenu *menu)
{
MooTextView *view = MOO_TEXT_VIEW (text_view);
GtkWidget *item;
item = gtk_separator_menu_item_new ();
gtk_widget_show (item);
gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
item = gtk_image_menu_item_new_from_stock (GTK_STOCK_REDO, NULL);
gtk_widget_show (item);
gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
g_signal_connect_swapped (item, "activate", G_CALLBACK (moo_text_view_redo), view);
gtk_widget_set_sensitive (item, moo_text_view_can_redo (view));
item = gtk_image_menu_item_new_from_stock (GTK_STOCK_UNDO, NULL);
gtk_widget_show (item);
gtk_menu_shell_prepend (GTK_MENU_SHELL (menu), item);
g_signal_connect_swapped (item, "activate", G_CALLBACK (moo_text_view_undo), view);
gtk_widget_set_sensitive (item, moo_text_view_can_undo (view));
}
static void
overwrite_changed (MooTextView *view)
{
GtkTextView *text_view;
text_view = GTK_TEXT_VIEW (view);
if (text_view->overwrite_mode)
{
view->priv->saved_cursor_visible = text_view->cursor_visible != 0;
gtk_text_view_set_cursor_visible (text_view, FALSE);
view->priv->overwrite_mode = TRUE;
}
else
{
gtk_text_view_set_cursor_visible (text_view,
view->priv->saved_cursor_visible);
view->priv->overwrite_mode = FALSE;
}
check_cursor_blink (view);
}
static gboolean
moo_text_view_focus_in (GtkWidget *widget,
GdkEventFocus *event)
{
gboolean ret;
ret = GTK_WIDGET_CLASS(moo_text_view_parent_class)->focus_in_event (widget, event);
check_cursor_blink (MOO_TEXT_VIEW (widget));
return ret;
}
static gboolean
moo_text_view_focus_out (GtkWidget *widget,
GdkEventFocus *event)
{
gboolean ret;
ret = GTK_WIDGET_CLASS(moo_text_view_parent_class)->focus_out_event (widget, event);
check_cursor_blink (MOO_TEXT_VIEW (widget));
return ret;
}
#define CURSOR_ON_MULTIPLIER 0.66
#define CURSOR_OFF_MULTIPLIER 0.34
#define CURSOR_PEND_MULTIPLIER 0.5
static gboolean
get_cursor_rectangle (GtkTextView *view,
GdkRectangle *cursor_rect)
{
GtkTextIter iter;
GdkRectangle visible_rect;
GtkTextBuffer *buffer;
GtkTextMark *insert;
buffer = gtk_text_view_get_buffer (view);
insert = gtk_text_buffer_get_insert (buffer);
gtk_text_buffer_get_iter_at_mark (buffer, &iter, insert);
gtk_text_view_get_iter_location (view, &iter, cursor_rect);
gtk_text_view_get_visible_rect (view, &visible_rect);
if (gtk_text_iter_ends_line (&iter))
cursor_rect->width = 6;
if (gdk_rectangle_intersect (cursor_rect, &visible_rect, cursor_rect))
{
gtk_text_view_buffer_to_window_coords (view, GTK_TEXT_WINDOW_TEXT,
cursor_rect->x, cursor_rect->y,
&cursor_rect->x, &cursor_rect->y);
return TRUE;
}
else
{
return FALSE;
}
}
static void
moo_text_view_draw_cursor (GtkTextView *view,
GdkEventExpose *event)
{
GdkRectangle cursor_rect;
if (!get_cursor_rectangle (view, &cursor_rect))
return;
if (!gdk_rectangle_intersect (&cursor_rect, &event->area, &cursor_rect))
return;
gdk_draw_rectangle (event->window,
GTK_WIDGET(view)->style->text_gc[GTK_STATE_NORMAL],
TRUE,
cursor_rect.x,
cursor_rect.y,
cursor_rect.width,
cursor_rect.height);
}
static void
invalidate_cursor (GtkTextView *view)
{
GdkRectangle rect;
if (get_cursor_rectangle (view, &rect))
{
GdkWindow *window = gtk_text_view_get_window (view, GTK_TEXT_WINDOW_TEXT);
g_return_if_fail (window != NULL);
gdk_window_invalidate_rect (window, &rect, FALSE);
}
}
static gboolean
cursor_blinks (GtkWidget *widget)
{
gboolean blink;
GtkSettings *settings = gtk_widget_get_settings (widget);
g_object_get (settings, "gtk-cursor-blink", &blink, NULL);
return blink;
}
static int
get_cursor_time (GtkWidget *widget)
{
int time;
GtkSettings *settings = gtk_widget_get_settings (widget);
g_object_get (settings, "gtk-cursor-blink-time", &time, NULL);
return time;
}
static gboolean
blink_cb (MooTextView *view)
{
GtkTextView *text_view = GTK_TEXT_VIEW (view);
int time;
g_return_val_if_fail (view->priv->overwrite_mode, FALSE);
time = get_cursor_time (GTK_WIDGET (view));
if (view->priv->cursor_visible)
time *= CURSOR_OFF_MULTIPLIER;
else
time *= CURSOR_ON_MULTIPLIER;
view->priv->blink_timeout = g_timeout_add (time, (GSourceFunc) blink_cb, view);
view->priv->cursor_visible = !view->priv->cursor_visible;
invalidate_cursor (text_view);
return FALSE;
}
static void
stop_cursor_blink (MooTextView *view)
{
if (view->priv->blink_timeout)
{
g_source_remove (view->priv->blink_timeout);
view->priv->blink_timeout = 0;
}
}
static void
check_cursor_blink (MooTextView *view)
{
GtkTextView *text_view = GTK_TEXT_VIEW (view);
if (view->priv->overwrite_mode && GTK_WIDGET_HAS_FOCUS (view))
{
if (cursor_blinks (GTK_WIDGET (view)))
{
if (!view->priv->blink_timeout)
{
int time = get_cursor_time (GTK_WIDGET (view)) * CURSOR_OFF_MULTIPLIER;
view->priv->cursor_visible = TRUE;
view->priv->blink_timeout = g_timeout_add (time, (GSourceFunc) blink_cb, view);
}
}
else
{
view->priv->cursor_visible = TRUE;
}
}
else
{
view->priv->cursor_visible = FALSE;
stop_cursor_blink (view);
if (GTK_WIDGET_DRAWABLE (text_view))
invalidate_cursor (text_view);
}
}
void
_moo_text_view_pend_cursor_blink (MooTextView *view)
{
if (view->priv->overwrite_mode &&
GTK_WIDGET_HAS_FOCUS (view) &&
cursor_blinks (GTK_WIDGET (view)))
{
int time;
if (view->priv->blink_timeout != 0)
{
g_source_remove (view->priv->blink_timeout);
view->priv->blink_timeout = 0;
}
view->priv->cursor_visible = TRUE;
time = get_cursor_time (GTK_WIDGET (view)) * CURSOR_PEND_MULTIPLIER;
view->priv->blink_timeout = g_timeout_add (time, (GSourceFunc) blink_cb, view);
}
}
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