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6915aba952601c51ffce7ba8b1eec44b242cfb03
gtk3/gtk/gtktextview.h
Alexander Larsson 0af457639d TextView: Use saner coordinate space in draw_layer. 
When I added the draw_layer vfunc it accidentally got passed a cairo_t
that was configured with to draw in the viewport coordinate space (rather
than the buffer coordinate space). This makes things unnecessary complex,
because you have to convert between the two.

The pixel cache is shared between the text and the layers, so there is
no way to use draw_layer to get a stationary overlay effect. Thus it makes
much more sense for the draw_layer vfunc to draw in the buffer space.

Just changing this would break ABI for existing code, so this is fixed
by adding new layer types and deprecating the old ones.

Also, we use the new layer types to fix gtk3-widget-factory.

https://bugzilla.gnome.org/show_bug.cgi?id=757856
2015-11-10 08:39:47 +01:00

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/* GTK - The GIMP Toolkit
* gtktextview.h Copyright (C) 2000 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#ifndef __GTK_TEXT_VIEW_H__
#define __GTK_TEXT_VIEW_H__
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#include <gtk/gtkcontainer.h>
#include <gtk/gtkimcontext.h>
#include <gtk/gtktextbuffer.h>
#include <gtk/gtkmenu.h>
G_BEGIN_DECLS
#define GTK_TYPE_TEXT_VIEW (gtk_text_view_get_type ())
#define GTK_TEXT_VIEW(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_TEXT_VIEW, GtkTextView))
#define GTK_TEXT_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_TEXT_VIEW, GtkTextViewClass))
#define GTK_IS_TEXT_VIEW(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_TEXT_VIEW))
#define GTK_IS_TEXT_VIEW_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_TEXT_VIEW))
#define GTK_TEXT_VIEW_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_TEXT_VIEW, GtkTextViewClass))
/**
* GtkTextWindowType:
* @GTK_TEXT_WINDOW_WIDGET: Window that floats over scrolling areas.
* @GTK_TEXT_WINDOW_TEXT: Scrollable text window.
* @GTK_TEXT_WINDOW_LEFT: Left side border window.
* @GTK_TEXT_WINDOW_RIGHT: Right side border window.
* @GTK_TEXT_WINDOW_TOP: Top border window.
* @GTK_TEXT_WINDOW_BOTTOM: Bottom border window.
*
* Used to reference the parts of #GtkTextView.
*/
typedef enum
{
/*< private >*/
GTK_TEXT_WINDOW_PRIVATE,
/*< public >*/
GTK_TEXT_WINDOW_WIDGET,
GTK_TEXT_WINDOW_TEXT,
GTK_TEXT_WINDOW_LEFT,
GTK_TEXT_WINDOW_RIGHT,
GTK_TEXT_WINDOW_TOP,
GTK_TEXT_WINDOW_BOTTOM
} GtkTextWindowType;
/**
* GtkTextViewLayer:
* @GTK_TEXT_VIEW_LAYER_BELOW: Old deprecated layer, use %GTK_TEXT_VIEW_LAYER_BELOW_TEXT instead
* @GTK_TEXT_VIEW_LAYER_ABOVE: Old deprecated layer, use %GTK_TEXT_VIEW_LAYER_ABOVE_TEXT instead
* @GTK_TEXT_VIEW_LAYER_BELOW_TEXT: The layer rendered below the text (but above the background). Since: 3.20
* @GTK_TEXT_VIEW_LAYER_ABOVE_TEXT: The layer rendered above the text. Since: 3.20
*
* Used to reference the layers of #GtkTextView for the purpose of customized
* drawing with the ::draw_layer vfunc.
*/
typedef enum
{
GTK_TEXT_VIEW_LAYER_BELOW,
GTK_TEXT_VIEW_LAYER_ABOVE,
GTK_TEXT_VIEW_LAYER_BELOW_TEXT,
GTK_TEXT_VIEW_LAYER_ABOVE_TEXT
} GtkTextViewLayer;
/**
* GtkTextExtendSelection:
* @GTK_TEXT_EXTEND_SELECTION_WORD: Selects the current word. It is triggered by
* a double-click for example.
* @GTK_TEXT_EXTEND_SELECTION_LINE: Selects the current line. It is triggered by
* a triple-click for example.
*
* Granularity types that extend the text selection. Use the
* #GtkTextView::extend-selection signal to customize the selection.
*
* Since: 3.16
*/
typedef enum
{
GTK_TEXT_EXTEND_SELECTION_WORD,
GTK_TEXT_EXTEND_SELECTION_LINE
} GtkTextExtendSelection;
/**
* GTK_TEXT_VIEW_PRIORITY_VALIDATE:
*
* The priority at which the text view validates onscreen lines
* in an idle job in the background.
*/
#define GTK_TEXT_VIEW_PRIORITY_VALIDATE (GDK_PRIORITY_REDRAW + 5)
typedef struct _GtkTextView GtkTextView;
typedef struct _GtkTextViewPrivate GtkTextViewPrivate;
typedef struct _GtkTextViewClass GtkTextViewClass;
struct _GtkTextView
{
GtkContainer parent_instance;
/*< private >*/
GtkTextViewPrivate *priv;
};
/**
* GtkTextViewClass:
* @parent_class: The object class structure needs to be the first
* @populate_popup: The class handler for the #GtkTextView::populate-popup
* signal.
* @move_cursor: The class handler for the #GtkTextView::move-cursor
* keybinding signal.
* @set_anchor: The class handler for the #GtkTextView::set-anchor
* keybinding signal.
* @insert_at_cursor: The class handler for the #GtkTextView::insert-at-cursor
* keybinding signal.
* @delete_from_cursor: The class handler for the #GtkTextView::delete-from-cursor
* keybinding signal.
* @backspace: The class handler for the #GtkTextView::backspace
* keybinding signal.
* @cut_clipboard: The class handler for the #GtkTextView::cut-clipboard
* keybinding signal
* @copy_clipboard: The class handler for the #GtkTextview::copy-clipboard
* keybinding signal.
* @paste_clipboard: The class handler for the #GtkTextView::paste-clipboard
* keybinding signal.
* @toggle_overwrite: The class handler for the #GtkTextView::toggle-overwrite
* keybinding signal.
* @create_buffer: The create_buffer vfunc is called to create a #GtkTextBuffer
* for the text view. The default implementation is to just call
* gtk_text_buffer_new(). Since: 3.10
* @draw_layer: The draw_layer vfunc is called before and after the text
* view is drawing its own text. Applications can override this vfunc
* in a subclass to draw customized content underneath or above the
* text. In the %GTK_TEXT_VIEW_LAYER_BELOW_TEXT and %GTK_TEXT_VIEW_LAYER_ABOVE_TEXT
* the drawing is done in the buffer coordinate space, but the older (deprecated)
* layers %GTK_TEXT_VIEW_LAYER_BELOW and %GTK_TEXT_VIEW_LAYER_ABOVE work in viewport
* coordinates, which makes them unnecessarily hard to use. Since: 3.14
* @extend_selection: The class handler for the #GtkTextView::extend-selection
* signal. Since 3.16
*/
struct _GtkTextViewClass
{
GtkContainerClass parent_class;
/*< public */
void (* populate_popup) (GtkTextView *text_view,
GtkWidget *popup);
void (* move_cursor) (GtkTextView *text_view,
GtkMovementStep step,
gint count,
gboolean extend_selection);
void (* set_anchor) (GtkTextView *text_view);
void (* insert_at_cursor) (GtkTextView *text_view,
const gchar *str);
void (* delete_from_cursor) (GtkTextView *text_view,
GtkDeleteType type,
gint count);
void (* backspace) (GtkTextView *text_view);
void (* cut_clipboard) (GtkTextView *text_view);
void (* copy_clipboard) (GtkTextView *text_view);
void (* paste_clipboard) (GtkTextView *text_view);
void (* toggle_overwrite) (GtkTextView *text_view);
GtkTextBuffer * (* create_buffer) (GtkTextView *text_view);
void (* draw_layer) (GtkTextView *text_view,
GtkTextViewLayer layer,
cairo_t *cr);
gboolean (* extend_selection) (GtkTextView *text_view,
GtkTextExtendSelection granularity,
const GtkTextIter *location,
GtkTextIter *start,
GtkTextIter *end);
/*< private >*/
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);
void (*_gtk_reserved3) (void);
void (*_gtk_reserved4) (void);
void (*_gtk_reserved5) (void);
};
GDK_AVAILABLE_IN_ALL
GType gtk_text_view_get_type (void) G_GNUC_CONST;
GDK_AVAILABLE_IN_ALL
GtkWidget * gtk_text_view_new (void);
GDK_AVAILABLE_IN_ALL
GtkWidget * gtk_text_view_new_with_buffer (GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_buffer (GtkTextView *text_view,
GtkTextBuffer *buffer);
GDK_AVAILABLE_IN_ALL
GtkTextBuffer *gtk_text_view_get_buffer (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_scroll_to_iter (GtkTextView *text_view,
GtkTextIter *iter,
gdouble within_margin,
gboolean use_align,
gdouble xalign,
gdouble yalign);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_scroll_to_mark (GtkTextView *text_view,
GtkTextMark *mark,
gdouble within_margin,
gboolean use_align,
gdouble xalign,
gdouble yalign);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_scroll_mark_onscreen (GtkTextView *text_view,
GtkTextMark *mark);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_move_mark_onscreen (GtkTextView *text_view,
GtkTextMark *mark);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_place_cursor_onscreen (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_get_visible_rect (GtkTextView *text_view,
GdkRectangle *visible_rect);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_cursor_visible (GtkTextView *text_view,
gboolean setting);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_get_cursor_visible (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_get_cursor_locations (GtkTextView *text_view,
const GtkTextIter *iter,
GdkRectangle *strong,
GdkRectangle *weak);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_get_iter_location (GtkTextView *text_view,
const GtkTextIter *iter,
GdkRectangle *location);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_get_iter_at_location (GtkTextView *text_view,
GtkTextIter *iter,
gint x,
gint y);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_get_iter_at_position (GtkTextView *text_view,
GtkTextIter *iter,
gint *trailing,
gint x,
gint y);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_get_line_yrange (GtkTextView *text_view,
const GtkTextIter *iter,
gint *y,
gint *height);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_get_line_at_y (GtkTextView *text_view,
GtkTextIter *target_iter,
gint y,
gint *line_top);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_buffer_to_window_coords (GtkTextView *text_view,
GtkTextWindowType win,
gint buffer_x,
gint buffer_y,
gint *window_x,
gint *window_y);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_window_to_buffer_coords (GtkTextView *text_view,
GtkTextWindowType win,
gint window_x,
gint window_y,
gint *buffer_x,
gint *buffer_y);
GDK_DEPRECATED_IN_3_0_FOR(gtk_scrollable_get_hadjustment)
GtkAdjustment* gtk_text_view_get_hadjustment (GtkTextView *text_view);
GDK_DEPRECATED_IN_3_0_FOR(gtk_scrollable_get_vadjustment)
GtkAdjustment* gtk_text_view_get_vadjustment (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
GdkWindow* gtk_text_view_get_window (GtkTextView *text_view,
GtkTextWindowType win);
GDK_AVAILABLE_IN_ALL
GtkTextWindowType gtk_text_view_get_window_type (GtkTextView *text_view,
GdkWindow *window);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_border_window_size (GtkTextView *text_view,
GtkTextWindowType type,
gint size);
GDK_AVAILABLE_IN_ALL
gint gtk_text_view_get_border_window_size (GtkTextView *text_view,
GtkTextWindowType type);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_forward_display_line (GtkTextView *text_view,
GtkTextIter *iter);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_backward_display_line (GtkTextView *text_view,
GtkTextIter *iter);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_forward_display_line_end (GtkTextView *text_view,
GtkTextIter *iter);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_backward_display_line_start (GtkTextView *text_view,
GtkTextIter *iter);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_starts_display_line (GtkTextView *text_view,
const GtkTextIter *iter);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_move_visually (GtkTextView *text_view,
GtkTextIter *iter,
gint count);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_im_context_filter_keypress (GtkTextView *text_view,
GdkEventKey *event);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_reset_im_context (GtkTextView *text_view);
/* Adding child widgets */
GDK_AVAILABLE_IN_ALL
void gtk_text_view_add_child_at_anchor (GtkTextView *text_view,
GtkWidget *child,
GtkTextChildAnchor *anchor);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_add_child_in_window (GtkTextView *text_view,
GtkWidget *child,
GtkTextWindowType which_window,
/* window coordinates */
gint xpos,
gint ypos);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_move_child (GtkTextView *text_view,
GtkWidget *child,
/* window coordinates */
gint xpos,
gint ypos);
/* Default style settings (fallbacks if no tag affects the property) */
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_wrap_mode (GtkTextView *text_view,
GtkWrapMode wrap_mode);
GDK_AVAILABLE_IN_ALL
GtkWrapMode gtk_text_view_get_wrap_mode (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_editable (GtkTextView *text_view,
gboolean setting);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_get_editable (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_overwrite (GtkTextView *text_view,
gboolean overwrite);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_get_overwrite (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_accepts_tab (GtkTextView *text_view,
gboolean accepts_tab);
GDK_AVAILABLE_IN_ALL
gboolean gtk_text_view_get_accepts_tab (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_pixels_above_lines (GtkTextView *text_view,
gint pixels_above_lines);
GDK_AVAILABLE_IN_ALL
gint gtk_text_view_get_pixels_above_lines (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_pixels_below_lines (GtkTextView *text_view,
gint pixels_below_lines);
GDK_AVAILABLE_IN_ALL
gint gtk_text_view_get_pixels_below_lines (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_pixels_inside_wrap (GtkTextView *text_view,
gint pixels_inside_wrap);
GDK_AVAILABLE_IN_ALL
gint gtk_text_view_get_pixels_inside_wrap (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_justification (GtkTextView *text_view,
GtkJustification justification);
GDK_AVAILABLE_IN_ALL
GtkJustification gtk_text_view_get_justification (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_left_margin (GtkTextView *text_view,
gint left_margin);
GDK_AVAILABLE_IN_ALL
gint gtk_text_view_get_left_margin (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_right_margin (GtkTextView *text_view,
gint right_margin);
GDK_AVAILABLE_IN_ALL
gint gtk_text_view_get_right_margin (GtkTextView *text_view);
GDK_AVAILABLE_IN_3_18
void gtk_text_view_set_top_margin (GtkTextView *text_view,
gint top_margin);
GDK_AVAILABLE_IN_3_18
gint gtk_text_view_get_top_margin (GtkTextView *text_view);
GDK_AVAILABLE_IN_3_18
void gtk_text_view_set_bottom_margin (GtkTextView *text_view,
gint bottom_margin);
GDK_AVAILABLE_IN_3_18
gint gtk_text_view_get_bottom_margin (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_indent (GtkTextView *text_view,
gint indent);
GDK_AVAILABLE_IN_ALL
gint gtk_text_view_get_indent (GtkTextView *text_view);
GDK_AVAILABLE_IN_ALL
void gtk_text_view_set_tabs (GtkTextView *text_view,
PangoTabArray *tabs);
GDK_AVAILABLE_IN_ALL
PangoTabArray* gtk_text_view_get_tabs (GtkTextView *text_view);
/* note that the return value of this changes with the theme */
GDK_AVAILABLE_IN_ALL
GtkTextAttributes* gtk_text_view_get_default_attributes (GtkTextView *text_view);
GDK_AVAILABLE_IN_3_6
void gtk_text_view_set_input_purpose (GtkTextView *text_view,
GtkInputPurpose purpose);
GDK_AVAILABLE_IN_3_6
GtkInputPurpose gtk_text_view_get_input_purpose (GtkTextView *text_view);
GDK_AVAILABLE_IN_3_6
void gtk_text_view_set_input_hints (GtkTextView *text_view,
GtkInputHints hints);
GDK_AVAILABLE_IN_3_6
GtkInputHints gtk_text_view_get_input_hints (GtkTextView *text_view);
GDK_AVAILABLE_IN_3_16
void gtk_text_view_set_monospace (GtkTextView *text_view,
gboolean monospace);
GDK_AVAILABLE_IN_3_16
gboolean gtk_text_view_get_monospace (GtkTextView *text_view);
G_END_DECLS
#endif /* __GTK_TEXT_VIEW_H__ */
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