forked from AuroraMiddleware/gtk
319 lines
8.1 KiB
C
319 lines
8.1 KiB
C
/* GDK - The GIMP Drawing Kit
|
|
* Copyright (C) 2020 Red Hat
|
|
*
|
|
* 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/>.
|
|
*
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "gdkpopuplayout.h"
|
|
|
|
#include "gdksurface.h"
|
|
|
|
/**
|
|
* SECTION:gdkpopuplayout
|
|
* @Title: GdkPopupLayout
|
|
* @Short_description: Information for presenting popups
|
|
*
|
|
* Popups are positioned relative to their parent surface.
|
|
* The GdkPopupLayout struct contains information that is
|
|
* necessary to do so.
|
|
*/
|
|
|
|
struct _GdkPopupLayout
|
|
{
|
|
/* < private >*/
|
|
grefcount ref_count;
|
|
|
|
GdkRectangle anchor_rect;
|
|
GdkGravity rect_anchor;
|
|
GdkGravity surface_anchor;
|
|
GdkAnchorHints anchor_hints;
|
|
int dx;
|
|
int dy;
|
|
};
|
|
|
|
G_DEFINE_BOXED_TYPE (GdkPopupLayout, gdk_popup_layout,
|
|
gdk_popup_layout_ref,
|
|
gdk_popup_layout_unref)
|
|
|
|
/**
|
|
* gdk_popup_layout_new: (constructor)
|
|
* @anchor_rect: (not nullable): the anchor #GdkRectangle to align @surface with
|
|
* @rect_anchor: the point on @anchor_rect to align with @surface's anchor point
|
|
* @surface_anchor: the point on @surface to align with @rect's anchor point
|
|
*
|
|
* Create a popup layout description. Used together with
|
|
* gdk_surface_present_popup() to describe how a popup surface should be placed
|
|
* and behave on-screen.
|
|
*
|
|
* @anchor_rect is relative to the top-left corner of the surface's parent.
|
|
* @rect_anchor and @surface_anchor determine anchor points on @anchor_rect and
|
|
* surface to pin together.
|
|
*
|
|
* The position of @anchor_rect's anchor point can optionally be offset using
|
|
* gdk_popup_layout_set_offset(), which is equivalent to offsetting the
|
|
* position of surface.
|
|
*
|
|
* Returns: (transfer full): newly created instance of #GdkPopupLayout
|
|
*/
|
|
GdkPopupLayout *
|
|
gdk_popup_layout_new (const GdkRectangle *anchor_rect,
|
|
GdkGravity rect_anchor,
|
|
GdkGravity surface_anchor)
|
|
{
|
|
GdkPopupLayout *layout;
|
|
|
|
layout = g_new0 (GdkPopupLayout, 1);
|
|
g_ref_count_init (&layout->ref_count);
|
|
layout->anchor_rect = *anchor_rect;
|
|
layout->rect_anchor = rect_anchor;
|
|
layout->surface_anchor = surface_anchor;
|
|
|
|
return layout;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_ref:
|
|
* @layout: a #GdkPopupLayout
|
|
*
|
|
* Increases the reference count of @value.
|
|
*
|
|
* Returns: the same @layout
|
|
*/
|
|
GdkPopupLayout *
|
|
gdk_popup_layout_ref (GdkPopupLayout *layout)
|
|
{
|
|
g_ref_count_inc (&layout->ref_count);
|
|
return layout;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_unref:
|
|
* @layout: a #GdkPopupLayout
|
|
*
|
|
* Decreases the reference count of @value.
|
|
*/
|
|
void
|
|
gdk_popup_layout_unref (GdkPopupLayout *layout)
|
|
{
|
|
if (g_ref_count_dec (&layout->ref_count))
|
|
g_free (layout);
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_copy:
|
|
* @layout: a #GdkPopupLayout
|
|
*
|
|
* Create a new #GdkPopupLayout and copy the contents of @layout into it.
|
|
*
|
|
* Returns: (transfer full): a copy of @layout.
|
|
*/
|
|
GdkPopupLayout *
|
|
gdk_popup_layout_copy (GdkPopupLayout *layout)
|
|
{
|
|
GdkPopupLayout *new_layout;
|
|
|
|
new_layout = g_new0 (GdkPopupLayout, 1);
|
|
g_ref_count_init (&new_layout->ref_count);
|
|
|
|
new_layout->anchor_rect = layout->anchor_rect;
|
|
new_layout->rect_anchor = layout->rect_anchor;
|
|
new_layout->surface_anchor = layout->surface_anchor;
|
|
new_layout->anchor_hints = layout->anchor_hints;
|
|
new_layout->dx = layout->dx;
|
|
new_layout->dy = layout->dy;
|
|
|
|
return new_layout;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_equal:
|
|
* @layout: a #GdkPopupLayout
|
|
* @other: another #GdkPopupLayout
|
|
*
|
|
* Check whether @layout and @other has identical layout properties.
|
|
*
|
|
* Returns: %TRUE if @layout and @other have identical layout properties,
|
|
* otherwise %FALSE.
|
|
*/
|
|
gboolean
|
|
gdk_popup_layout_equal (GdkPopupLayout *layout,
|
|
GdkPopupLayout *other)
|
|
{
|
|
g_return_val_if_fail (layout, FALSE);
|
|
g_return_val_if_fail (other, FALSE);
|
|
|
|
return (gdk_rectangle_equal (&layout->anchor_rect, &other->anchor_rect) &&
|
|
layout->rect_anchor == other->rect_anchor &&
|
|
layout->surface_anchor == other->surface_anchor &&
|
|
layout->anchor_hints == other->anchor_hints &&
|
|
layout->dx == other->dx &&
|
|
layout->dy == other->dy);
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_set_anchor_rect:
|
|
* @layout: a #GdkPopupLayout
|
|
* @anchor_rect: the new anchor rectangle
|
|
*
|
|
* Set the anchor rectangle.
|
|
*/
|
|
void
|
|
gdk_popup_layout_set_anchor_rect (GdkPopupLayout *layout,
|
|
const GdkRectangle *anchor_rect)
|
|
{
|
|
layout->anchor_rect = *anchor_rect;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_get_anchor_rect:
|
|
* @layout: a #GdkPopupLayout
|
|
*
|
|
* Get the anchor rectangle.
|
|
*
|
|
* Returns: The anchor rectangle.
|
|
*/
|
|
const GdkRectangle *
|
|
gdk_popup_layout_get_anchor_rect (GdkPopupLayout *layout)
|
|
{
|
|
return &layout->anchor_rect;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_set_rect_anchor:
|
|
* @layout: a #GdkPopupLayout
|
|
* @anchor: the new rect anchor
|
|
*
|
|
* Set the anchor on the anchor rectangle.
|
|
*/
|
|
void
|
|
gdk_popup_layout_set_rect_anchor (GdkPopupLayout *layout,
|
|
GdkGravity anchor)
|
|
{
|
|
layout->rect_anchor = anchor;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_get_rect_anchor:
|
|
* @layout: a #GdkPopupLayout
|
|
*
|
|
* Returns the anchor position on the anchor rectangle.
|
|
*
|
|
* Returns: the anchor on the anchor rectangle.
|
|
*/
|
|
GdkGravity
|
|
gdk_popup_layout_get_rect_anchor (GdkPopupLayout *layout)
|
|
{
|
|
return layout->rect_anchor;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_set_surface_anchor:
|
|
* @layout: a #GdkPopupLayout
|
|
* @anchor: the new popup surface anchor
|
|
*
|
|
* Set the anchor on the popup surface.
|
|
*/
|
|
void
|
|
gdk_popup_layout_set_surface_anchor (GdkPopupLayout *layout,
|
|
GdkGravity anchor)
|
|
{
|
|
layout->surface_anchor = anchor;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_get_surface_anchor:
|
|
* @layout: a #GdkPopupLayout
|
|
*
|
|
* Returns the anchor position on the popup surface.
|
|
*
|
|
* Returns: the anchor on the popup surface.
|
|
*/
|
|
GdkGravity
|
|
gdk_popup_layout_get_surface_anchor (GdkPopupLayout *layout)
|
|
{
|
|
return layout->surface_anchor;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_set_anchor_hints:
|
|
* @layout: a #GdkPopupLayout
|
|
* @anchor_hints: the new #GdkAnchorHints
|
|
*
|
|
* Set new anchor hints.
|
|
*
|
|
* The set @anchor_hints determines how @surface will be moved if the anchor
|
|
* points cause it to move off-screen. For example, %GDK_ANCHOR_FLIP_X will
|
|
* replace %GDK_GRAVITY_NORTH_WEST with %GDK_GRAVITY_NORTH_EAST and vice versa
|
|
* if @surface extends beyond the left or right edges of the monitor.
|
|
*/
|
|
void
|
|
gdk_popup_layout_set_anchor_hints (GdkPopupLayout *layout,
|
|
GdkAnchorHints anchor_hints)
|
|
{
|
|
layout->anchor_hints = anchor_hints;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_get_anchor_hints:
|
|
* @layout: a #GdkPopupLayout
|
|
*
|
|
* Get the #GdkAnchorHints.
|
|
*
|
|
* Returns: the #GdkAnchorHints.
|
|
*/
|
|
GdkAnchorHints
|
|
gdk_popup_layout_get_anchor_hints (GdkPopupLayout *layout)
|
|
{
|
|
return layout->anchor_hints;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_set_offset:
|
|
* @layout: a #GdkPopupLayout
|
|
* @dx: x delta to offset the anchor rectangle with
|
|
* @dy: y delta to offset the anchor rectangle with
|
|
*
|
|
* Offset the position of the anchor rectangle with the given delta.
|
|
*/
|
|
void
|
|
gdk_popup_layout_set_offset (GdkPopupLayout *layout,
|
|
int dx,
|
|
int dy)
|
|
{
|
|
layout->dx = dx;
|
|
layout->dy = dy;
|
|
}
|
|
|
|
/**
|
|
* gdk_popup_layout_get_offset:
|
|
* @layout: a #GdkPopupLayout
|
|
* @dx: a pointer to where to store the delta x coordinate
|
|
* @dy: a pointer to where to store the delta y coordinate
|
|
*
|
|
* Get the delta the anchor rectangle is offset with
|
|
*/
|
|
void
|
|
gdk_popup_layout_get_offset (GdkPopupLayout *layout,
|
|
int *dx,
|
|
int *dy)
|
|
{
|
|
if (dx)
|
|
*dx = layout->dx;
|
|
if (dy)
|
|
*dy = layout->dy;
|
|
}
|