86b5c82a97
2000-10-23 Havoc Pennington <hp@redhat.com>
* gtk/testtext.c: Re-enable the "find" dialog
* gtk/testgtk.c: Add test for gdk_drawable_get_image
* gdk/gdkwindow.c (gdk_window_begin_paint_region): Fix bug where
the arguments to gdk_draw_drawable were in the wrong order
(gdk_window_paint_init_bg): This function was ignoring the
init_region, instead of clipping to it, so the entire backing
pixmap was cleared on every begin_paint()
(gdk_window_begin_paint_region): Hmm, the same list-walking bug
was in here again, the loop kept using the same GtkWindowPaint
over and over.
(gdk_window_begin_paint_region): Fix a bug where we had two
x_offset instead of x_offset and y_offset
* gdk/gdkdraw.c (gdk_drawable_get_image): get composite drawable
before we get the image.
(gdk_draw_drawable): get the composite before we draw the drawable.
(gdk_drawable_real_get_composite_drawable): default
get_composite_drawable implementation that returns the drawable
itself
* gdk/gdkdrawable.h (struct _GdkDrawableClass ): Add
get_composite_drawable virtual function
* gdk/gdkwindow.c (gdk_window_begin_paint_region): Fix a cheesy
list-walking bug
* gdk/x11/gdkdrawable-x11.c (gdk_x11_draw_drawable): Add a hack to
make this work if the source drawable is a GdkDrawableImplX11
instead of a public drawable type. This is really broken; the
problem is that GdkDrawable needs a virtual method get_xid(), but
of course that doesn't work in practice. Enter RTTI.
Also, improve mismatched depth message.
* gdk/gdkpixmap.c (gdk_pixmap_get_image): Implement get_image for
GdkPixmap
* gdk/x11/gdkdrawable-x11.c (gdk_drawable_impl_x11_class_init):
install _gdk_x11_get_image as our implementation of get_image
* gdk/x11/gdkimage-x11.c (gdk_image_get): Rename to
_gdk_x11_get_image and export for use in gdkdrawable-x11.c
* gdk/gdkimage.c (gdk_image_get): Make this just a wrapper around
gdk_drawable_get_image
* gdk/gdkdraw.c (gdk_drawable_get_image): call virtual get_image
* gdk/gdkdrawable.h (struct _GdkDrawableClass ): Virtualize
get_image
* gtk/gtktreestore.c (gtk_tree_store_get_node): remove weird
trailing semicolon after for loop
106 lines
2.3 KiB
Plaintext
106 lines
2.3 KiB
Plaintext
<!-- ##### SECTION Title ##### -->
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GtkTextMark
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<!-- ##### SECTION Short_Description ##### -->
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A position in the buffer preserved across buffer modifications
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<!-- ##### SECTION Long_Description ##### -->
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<para>
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You may wish to begin by reading the <link linkend="TextWidget">text widget
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conceptual overview</link> which gives an overview of all the objects and data
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types related to the text widget and how they work together.
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</para>
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<para>
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A #GtkTextMark is like a bookmark in a text buffer; it preserves a position in
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the text. You can convert the mark to an iterator using
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gtk_text_buffer_get_iter_at_mark(). Unlike iterators, marks remain valid across
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buffer mutations, because their behavior is defined when text is inserted or
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deleted. When text containing a mark is deleted, the mark remains in the
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position originally occupied by the deleted text. When text is inserted at a
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mark, a mark with <firstterm>left gravity</firstterm> will be moved to the
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beginning of the newly-inserted text, and a mark with <firstterm>right
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gravity</firstterm> will be moved to the end.
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<footnote>
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<para>
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"left" and "right" here refer to logical direction (left is the toward the start
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of the buffer); in some languages such as Hebrew the logically-leftmost text is
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not actually on the left when displayed.
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</para>
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</footnote>
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</para>
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<para>
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Marks are reference counted, but the reference count only controls the validity
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of the memory; marks can be deleted from the buffer at any time with
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gtk_text_buffer_delete_mark(). Once deleted from the buffer, a mark is
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essentially useless.
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</para>
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<para>
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Marks optionally have names; these can be convenient to avoid passing the
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#GtkTextMark object around.
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</para>
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<para>
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Marks are typically created using the gtk_text_buffer_create_mark() function.
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</para>
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<!-- ##### SECTION See_Also ##### -->
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<para>
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</para>
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<!-- ##### STRUCT GtkTextMark ##### -->
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<para>
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</para>
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<!-- ##### FUNCTION gtk_text_mark_set_visible ##### -->
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<para>
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</para>
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@mark:
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@setting:
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<!-- ##### FUNCTION gtk_text_mark_is_visible ##### -->
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<para>
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</para>
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@mark:
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@Returns:
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<!-- ##### FUNCTION gtk_text_mark_ref ##### -->
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<para>
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</para>
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@mark:
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@Returns:
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<!-- ##### FUNCTION gtk_text_mark_unref ##### -->
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<para>
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</para>
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@mark:
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<!-- ##### FUNCTION gtk_text_mark_get_deleted ##### -->
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<para>
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</para>
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@mark:
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@Returns:
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