forked from AuroraMiddleware/gtk
a6101f0181
This allows developers to modify the pango context that is used when rendering text within the text view. Such access can be useful to alter how rounding occurs with API such as pango_context_set_round_glyph_positions() and is needed by GtkSourceView for proper placement of glyphs within the overview map.
438 lines
21 KiB
C
438 lines
21 KiB
C
/* GTK - The GIMP Toolkit
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* gtktextview.h Copyright (C) 2000 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GTK_TEXT_VIEW_H__
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#define __GTK_TEXT_VIEW_H__
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#include <gtk/gtkwidget.h>
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#include <gtk/gtkimcontext.h>
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#include <gtk/gtktextbuffer.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_TEXT_VIEW (gtk_text_view_get_type ())
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#define GTK_TEXT_VIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TEXT_VIEW, GtkTextView))
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#define GTK_TEXT_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_VIEW, GtkTextViewClass))
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#define GTK_IS_TEXT_VIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TEXT_VIEW))
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#define GTK_IS_TEXT_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_VIEW))
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#define GTK_TEXT_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewClass))
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/**
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* GtkTextWindowType:
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* @GTK_TEXT_WINDOW_WIDGET: Window that floats over scrolling areas.
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* @GTK_TEXT_WINDOW_TEXT: Scrollable text window.
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* @GTK_TEXT_WINDOW_LEFT: Left side border window.
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* @GTK_TEXT_WINDOW_RIGHT: Right side border window.
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* @GTK_TEXT_WINDOW_TOP: Top border window.
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* @GTK_TEXT_WINDOW_BOTTOM: Bottom border window.
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*
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* Used to reference the parts of `GtkTextView`.
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*/
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typedef enum
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{
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GTK_TEXT_WINDOW_WIDGET = 1,
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GTK_TEXT_WINDOW_TEXT,
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GTK_TEXT_WINDOW_LEFT,
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GTK_TEXT_WINDOW_RIGHT,
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GTK_TEXT_WINDOW_TOP,
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GTK_TEXT_WINDOW_BOTTOM
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} GtkTextWindowType;
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/**
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* GtkTextViewLayer:
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* @GTK_TEXT_VIEW_LAYER_BELOW_TEXT: The layer rendered below the text (but above the background).
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* @GTK_TEXT_VIEW_LAYER_ABOVE_TEXT: The layer rendered above the text.
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*
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* Used to reference the layers of `GtkTextView` for the purpose of customized
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* drawing with the ::snapshot_layer vfunc.
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*/
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typedef enum
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{
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GTK_TEXT_VIEW_LAYER_BELOW_TEXT,
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GTK_TEXT_VIEW_LAYER_ABOVE_TEXT
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} GtkTextViewLayer;
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/**
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* GtkTextExtendSelection:
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* @GTK_TEXT_EXTEND_SELECTION_WORD: Selects the current word. It is triggered by
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* a double-click for example.
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* @GTK_TEXT_EXTEND_SELECTION_LINE: Selects the current line. It is triggered by
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* a triple-click for example.
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*
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* Granularity types that extend the text selection. Use the
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* `GtkTextView::extend-selection` signal to customize the selection.
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*/
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typedef enum
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{
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GTK_TEXT_EXTEND_SELECTION_WORD,
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GTK_TEXT_EXTEND_SELECTION_LINE
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} GtkTextExtendSelection;
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/**
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* GTK_TEXT_VIEW_PRIORITY_VALIDATE: (value 125)
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*
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* The priority at which the text view validates onscreen lines
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* in an idle job in the background.
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*/
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#define GTK_TEXT_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)
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typedef struct _GtkTextView GtkTextView;
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typedef struct _GtkTextViewPrivate GtkTextViewPrivate;
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typedef struct _GtkTextViewClass GtkTextViewClass;
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struct _GtkTextView
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{
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GtkWidget parent_instance;
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/*< private >*/
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GtkTextViewPrivate *priv;
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};
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/**
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* GtkTextViewClass:
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* @parent_class: The object class structure needs to be the first
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* @move_cursor: The class handler for the `GtkTextView::move-cursor`
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* keybinding signal.
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* @set_anchor: The class handler for the `GtkTextView::set-anchor`
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* keybinding signal.
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* @insert_at_cursor: The class handler for the `GtkTextView::insert-at-cursor`
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* keybinding signal.
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* @delete_from_cursor: The class handler for the `GtkTextView::delete-from-cursor`
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* keybinding signal.
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* @backspace: The class handler for the `GtkTextView::backspace`
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* keybinding signal.
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* @cut_clipboard: The class handler for the `GtkTextView::cut-clipboard`
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* keybinding signal
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* @copy_clipboard: The class handler for the `GtkTextView::copy-clipboard`
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* keybinding signal.
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* @paste_clipboard: The class handler for the `GtkTextView::paste-clipboard`
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* keybinding signal.
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* @toggle_overwrite: The class handler for the `GtkTextView::toggle-overwrite`
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* keybinding signal.
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* @create_buffer: The create_buffer vfunc is called to create a `GtkTextBuffer`
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* for the text view. The default implementation is to just call
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* gtk_text_buffer_new().
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* @snapshot_layer: The snapshot_layer vfunc is called before and after the text
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* view is drawing its own text. Applications can override this vfunc
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* in a subclass to draw customized content underneath or above the
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* text. In the %GTK_TEXT_VIEW_LAYER_BELOW_TEXT and %GTK_TEXT_VIEW_LAYER_ABOVE_TEXT
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* layers the drawing is done in the buffer coordinate space.
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* @extend_selection: The class handler for the `GtkTextView::extend-selection` signal.
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* @insert_emoji: The class handler for the `GtkTextView::insert-emoji` signal.
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*/
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struct _GtkTextViewClass
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{
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GtkWidgetClass parent_class;
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/*< public >*/
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void (* move_cursor) (GtkTextView *text_view,
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GtkMovementStep step,
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int count,
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gboolean extend_selection);
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void (* set_anchor) (GtkTextView *text_view);
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void (* insert_at_cursor) (GtkTextView *text_view,
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const char *str);
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void (* delete_from_cursor) (GtkTextView *text_view,
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GtkDeleteType type,
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int count);
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void (* backspace) (GtkTextView *text_view);
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void (* cut_clipboard) (GtkTextView *text_view);
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void (* copy_clipboard) (GtkTextView *text_view);
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void (* paste_clipboard) (GtkTextView *text_view);
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void (* toggle_overwrite) (GtkTextView *text_view);
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GtkTextBuffer * (* create_buffer) (GtkTextView *text_view);
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void (* snapshot_layer) (GtkTextView *text_view,
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GtkTextViewLayer layer,
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GtkSnapshot *snapshot);
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gboolean (* extend_selection) (GtkTextView *text_view,
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GtkTextExtendSelection granularity,
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const GtkTextIter *location,
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GtkTextIter *start,
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GtkTextIter *end);
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void (* insert_emoji) (GtkTextView *text_view);
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/*< private >*/
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gpointer padding[8];
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};
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GDK_AVAILABLE_IN_ALL
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GType gtk_text_view_get_type (void) G_GNUC_CONST;
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GDK_AVAILABLE_IN_ALL
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GtkWidget * gtk_text_view_new (void);
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GDK_AVAILABLE_IN_ALL
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GtkWidget * gtk_text_view_new_with_buffer (GtkTextBuffer *buffer);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_buffer (GtkTextView *text_view,
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GtkTextBuffer *buffer);
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GDK_AVAILABLE_IN_ALL
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GtkTextBuffer *gtk_text_view_get_buffer (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_scroll_to_iter (GtkTextView *text_view,
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GtkTextIter *iter,
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double within_margin,
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gboolean use_align,
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double xalign,
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double yalign);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_scroll_to_mark (GtkTextView *text_view,
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GtkTextMark *mark,
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double within_margin,
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gboolean use_align,
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double xalign,
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double yalign);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
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GtkTextMark *mark);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
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GtkTextMark *mark);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_place_cursor_onscreen (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_get_visible_rect (GtkTextView *text_view,
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GdkRectangle *visible_rect);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_cursor_visible (GtkTextView *text_view,
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gboolean setting);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_get_cursor_visible (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_reset_cursor_blink (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_get_cursor_locations (GtkTextView *text_view,
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const GtkTextIter *iter,
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GdkRectangle *strong,
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GdkRectangle *weak);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_get_iter_location (GtkTextView *text_view,
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const GtkTextIter *iter,
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GdkRectangle *location);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_get_iter_at_location (GtkTextView *text_view,
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GtkTextIter *iter,
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int x,
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int y);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_get_iter_at_position (GtkTextView *text_view,
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GtkTextIter *iter,
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int *trailing,
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int x,
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int y);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_get_line_yrange (GtkTextView *text_view,
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const GtkTextIter *iter,
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int *y,
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int *height);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_get_line_at_y (GtkTextView *text_view,
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GtkTextIter *target_iter,
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int y,
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int *line_top);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
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GtkTextWindowType win,
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int buffer_x,
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int buffer_y,
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int *window_x,
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int *window_y);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
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GtkTextWindowType win,
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int window_x,
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int window_y,
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int *buffer_x,
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int *buffer_y);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_forward_display_line (GtkTextView *text_view,
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GtkTextIter *iter);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_backward_display_line (GtkTextView *text_view,
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GtkTextIter *iter);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_forward_display_line_end (GtkTextView *text_view,
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GtkTextIter *iter);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_backward_display_line_start (GtkTextView *text_view,
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GtkTextIter *iter);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_starts_display_line (GtkTextView *text_view,
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const GtkTextIter *iter);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_move_visually (GtkTextView *text_view,
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GtkTextIter *iter,
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int count);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_im_context_filter_keypress (GtkTextView *text_view,
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GdkEvent *event);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_reset_im_context (GtkTextView *text_view);
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/* Adding child widgets */
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GDK_AVAILABLE_IN_ALL
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GtkWidget *gtk_text_view_get_gutter (GtkTextView *text_view,
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GtkTextWindowType win);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_gutter (GtkTextView *text_view,
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GtkTextWindowType win,
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GtkWidget *widget);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
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GtkWidget *child,
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GtkTextChildAnchor *anchor);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_add_overlay (GtkTextView *text_view,
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GtkWidget *child,
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int xpos,
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int ypos);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_move_overlay (GtkTextView *text_view,
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GtkWidget *child,
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int xpos,
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int ypos);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_remove (GtkTextView *text_view,
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GtkWidget *child);
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/* Default style settings (fallbacks if no tag affects the property) */
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_wrap_mode (GtkTextView *text_view,
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GtkWrapMode wrap_mode);
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GDK_AVAILABLE_IN_ALL
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GtkWrapMode gtk_text_view_get_wrap_mode (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_editable (GtkTextView *text_view,
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gboolean setting);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_get_editable (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_overwrite (GtkTextView *text_view,
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gboolean overwrite);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_get_overwrite (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_accepts_tab (GtkTextView *text_view,
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gboolean accepts_tab);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_get_accepts_tab (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
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int pixels_above_lines);
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GDK_AVAILABLE_IN_ALL
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int gtk_text_view_get_pixels_above_lines (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
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int pixels_below_lines);
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GDK_AVAILABLE_IN_ALL
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int gtk_text_view_get_pixels_below_lines (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
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int pixels_inside_wrap);
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GDK_AVAILABLE_IN_ALL
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int gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_justification (GtkTextView *text_view,
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GtkJustification justification);
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GDK_AVAILABLE_IN_ALL
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GtkJustification gtk_text_view_get_justification (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_left_margin (GtkTextView *text_view,
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int left_margin);
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GDK_AVAILABLE_IN_ALL
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int gtk_text_view_get_left_margin (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_right_margin (GtkTextView *text_view,
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int right_margin);
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GDK_AVAILABLE_IN_ALL
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int gtk_text_view_get_right_margin (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_top_margin (GtkTextView *text_view,
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int top_margin);
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GDK_AVAILABLE_IN_ALL
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int gtk_text_view_get_top_margin (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_bottom_margin (GtkTextView *text_view,
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int bottom_margin);
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GDK_AVAILABLE_IN_ALL
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int gtk_text_view_get_bottom_margin (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_indent (GtkTextView *text_view,
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int indent);
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GDK_AVAILABLE_IN_ALL
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int gtk_text_view_get_indent (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_tabs (GtkTextView *text_view,
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PangoTabArray *tabs);
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GDK_AVAILABLE_IN_ALL
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PangoTabArray* gtk_text_view_get_tabs (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_input_purpose (GtkTextView *text_view,
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GtkInputPurpose purpose);
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GDK_AVAILABLE_IN_ALL
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GtkInputPurpose gtk_text_view_get_input_purpose (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_input_hints (GtkTextView *text_view,
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GtkInputHints hints);
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GDK_AVAILABLE_IN_ALL
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GtkInputHints gtk_text_view_get_input_hints (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_monospace (GtkTextView *text_view,
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gboolean monospace);
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GDK_AVAILABLE_IN_ALL
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gboolean gtk_text_view_get_monospace (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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void gtk_text_view_set_extra_menu (GtkTextView *text_view,
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GMenuModel *model);
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GDK_AVAILABLE_IN_ALL
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GMenuModel * gtk_text_view_get_extra_menu (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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PangoContext *gtk_text_view_get_rtl_context (GtkTextView *text_view);
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GDK_AVAILABLE_IN_ALL
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PangoContext *gtk_text_view_get_ltr_context (GtkTextView *text_view);
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G_END_DECLS
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#endif /* __GTK_TEXT_VIEW_H__ */
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