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https://github.com/brl/mutter.git
synced 2024-11-25 17:40:40 -05:00
layout: Add BoxLayout, a single line layout manager
The BoxLayout layout manager implements a layout policy for arranging children on a single line, either alongside the X axis or alongside the Y axis.
This commit is contained in:
Emmanuele Bassi
parent
c4b2d4ce79
commit
b526b76593
1
.gitignore
vendored
1
.gitignore
vendored
@ -135,6 +135,7 @@ TAGS
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/tests/interactive/test-clutter-cairo-flowers
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/tests/interactive/test-bin-layout
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/tests/interactive/test-flow-layout
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/tests/interactive/test-box-layout
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/tests/conform/stamp-test-conformance
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/tests/conform/test-anchors
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/tests/conform/test-conformance
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@ -67,6 +67,7 @@ source_h = \
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$(srcdir)/clutter-binding-pool.h \
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$(srcdir)/clutter-bin-layout.h \
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$(srcdir)/clutter-box.h \
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$(srcdir)/clutter-box-layout.h \
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$(srcdir)/clutter-cairo-texture.h \
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$(srcdir)/clutter-child-meta.h \
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$(srcdir)/clutter-clone.h \
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@ -137,6 +138,7 @@ source_c = \
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$(srcdir)/clutter-binding-pool.c \
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$(srcdir)/clutter-bin-layout.c \
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$(srcdir)/clutter-box.c \
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$(srcdir)/clutter-box-layout.c \
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$(srcdir)/clutter-cairo-texture.c \
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$(srcdir)/clutter-child-meta.c \
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$(srcdir)/clutter-clone.c \
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1496
clutter/clutter-box-layout.c
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1496
clutter/clutter-box-layout.c
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File diff suppressed because it is too large
Load Diff
143
clutter/clutter-box-layout.h
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143
clutter/clutter-box-layout.h
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@ -0,0 +1,143 @@
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/*
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* Clutter.
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*
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* An OpenGL based 'interactive canvas' library.
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*
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* Copyright (C) 2009 Intel Corporation.
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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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* Author:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*
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* Based on the NBTK NbtkBoxLayout actor by:
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* Thomas Wood <thomas.wood@intel.com>
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*/
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_BOX_LAYOUT_H__
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#define __CLUTTER_BOX_LAYOUT_H__
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#include <clutter/clutter-layout-manager.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_BOX_LAYOUT (clutter_box_layout_get_type ())
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#define CLUTTER_BOX_LAYOUT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_BOX_LAYOUT, ClutterBoxLayout))
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#define CLUTTER_IS_BOX_LAYOUT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_BOX_LAYOUT))
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#define CLUTTER_BOX_LAYOUT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_BOX_LAYOUT, ClutterBoxLayoutClass))
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#define CLUTTER_IS_BOX_LAYOUT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_BOX_LAYOUT))
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#define CLUTTER_BOX_LAYOUT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_BOX_LAYOUT, ClutterBoxLayoutClass))
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typedef struct _ClutterBoxLayout ClutterBoxLayout;
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typedef struct _ClutterBoxLayoutPrivate ClutterBoxLayoutPrivate;
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typedef struct _ClutterBoxLayoutClass ClutterBoxLayoutClass;
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/**
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* ClutterBoxAlignment:
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* @CLUTTER_BOX_ALIGNMENT_START: Align the child to the top or to
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* to the left, depending on the used axis
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* @CLUTTER_BOX_ALIGNMENT_CENTER: Align the child to the center
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* @CLUTTER_BOX_ALIGNMENT_END: Align the child to the bottom or to
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* the right, depending on the used axis
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*
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* The alignment policies available on each axis of the #ClutterBoxLayout
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*
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* Since: 1.2
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*/
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typedef enum {
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CLUTTER_BOX_ALIGNMENT_START,
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CLUTTER_BOX_ALIGNMENT_END,
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CLUTTER_BOX_ALIGNMENT_CENTER
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} ClutterBoxAlignment;
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/**
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* ClutterBoxLayout:
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*
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* The #ClutterBoxLayout structure contains only private data
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* and should be accessed using the provided API
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*
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* Since: 1.2
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*/
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struct _ClutterBoxLayout
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{
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/*< private >*/
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ClutterLayoutManager parent_instance;
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ClutterBoxLayoutPrivate *priv;
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};
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/**
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* ClutterBoxLayoutClass:
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*
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* The #ClutterBoxLayoutClass structure contains only private
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* data and should be accessed using the provided API
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*
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* Since: 1.2
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*/
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struct _ClutterBoxLayoutClass
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{
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/*< private >*/
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ClutterLayoutManagerClass parent_class;
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};
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GType clutter_box_layout_get_type (void) G_GNUC_CONST;
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ClutterLayoutManager *clutter_box_layout_new (void);
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void clutter_box_layout_set_spacing (ClutterBoxLayout *layout,
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guint spacing);
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guint clutter_box_layout_get_spacing (ClutterBoxLayout *layout);
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void clutter_box_layout_set_vertical (ClutterBoxLayout *layout,
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gboolean vertical);
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gboolean clutter_box_layout_get_vertical (ClutterBoxLayout *layout);
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void clutter_box_layout_set_pack_start (ClutterBoxLayout *layout,
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gboolean pack_start);
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gboolean clutter_box_layout_get_pack_start (ClutterBoxLayout *layout);
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void clutter_box_layout_pack (ClutterBoxLayout *layout,
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ClutterActor *actor,
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gboolean expand,
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gboolean x_fill,
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gboolean y_fill,
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ClutterBoxAlignment x_align,
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ClutterBoxAlignment y_align);
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void clutter_box_layout_set_alignment (ClutterBoxLayout *layout,
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ClutterActor *actor,
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ClutterBoxAlignment x_align,
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ClutterBoxAlignment y_align);
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void clutter_box_layout_get_alignment (ClutterBoxLayout *layout,
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ClutterActor *actor,
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ClutterBoxAlignment *x_align,
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ClutterBoxAlignment *y_align);
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void clutter_box_layout_set_fill (ClutterBoxLayout *layout,
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ClutterActor *actor,
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gboolean x_fill,
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gboolean y_fill);
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void clutter_box_layout_get_fill (ClutterBoxLayout *layout,
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ClutterActor *actor,
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gboolean *x_fill,
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gboolean *y_fill);
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void clutter_box_layout_set_expand (ClutterBoxLayout *layout,
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ClutterActor *actor,
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gboolean expand);
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gboolean clutter_box_layout_get_expand (ClutterBoxLayout *layout,
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ClutterActor *actor);
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G_END_DECLS
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#endif /* __CLUTTER_BOX_LAYOUT_H__ */
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@ -45,6 +45,7 @@
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#include "clutter-binding-pool.h"
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#include "clutter-bin-layout.h"
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#include "clutter-box.h"
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#include "clutter-box-layout.h"
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#include "clutter-cairo-texture.h"
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#include "clutter-child-meta.h"
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#include "clutter-clone.h"
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@ -45,7 +45,8 @@ UNIT_TESTS = \
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test-clutter-cairo-flowers.c \
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test-cogl-vertex-buffer.c \
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test-bin-layout.c \
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test-flow-layout.c
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test-flow-layout.c \
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test-box-layout.c
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if X11_TESTS
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UNIT_TESTS += test-pixmap.c
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207
tests/interactive/test-box-layout.c
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207
tests/interactive/test-box-layout.c
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@ -0,0 +1,207 @@
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/*
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* Copyright 2009 Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU Lesser General Public License,
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* version 2.1, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for
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* more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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* Boston, MA 02111-1307, USA.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <gmodule.h>
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#include <clutter/clutter.h>
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static ClutterActor *hover_actor = NULL;
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static void
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enter_event (ClutterActor *actor,
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ClutterEvent *event,
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gpointer data)
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{
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ClutterColor color = { 0x00, 0x00, 0x00, 0xff };
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clutter_rectangle_set_border_width (CLUTTER_RECTANGLE (actor), 2);
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clutter_rectangle_set_border_color (CLUTTER_RECTANGLE (actor), &color);
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hover_actor = actor;
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}
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static void
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leave_event (ClutterActor *actor,
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ClutterEvent *event,
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gpointer data)
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{
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clutter_rectangle_set_border_width (CLUTTER_RECTANGLE (actor), 0);
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hover_actor = NULL;
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}
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static gboolean
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button_release_event (ClutterActor *actor,
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ClutterEvent *event,
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ClutterBoxLayout *box)
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{
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gboolean xfill, yfill;
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ClutterBoxAlignment xalign, yalign;
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gint button;
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button = clutter_event_get_button (event);
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if (button == 1)
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{
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clutter_box_layout_get_fill (box, actor, &xfill, &yfill);
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clutter_box_layout_set_fill (box, actor,
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xfill ? FALSE : TRUE,
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yfill ? FALSE : TRUE);
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}
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else
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{
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clutter_box_layout_get_alignment (box, actor, &xalign, &yalign);
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if (xalign < 2)
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xalign += 1;
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else
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xalign = 0;
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if (yalign < 2)
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yalign += 1;
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else
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yalign = 0;
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clutter_box_layout_set_alignment (box, actor, xalign, yalign);
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}
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return TRUE;
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}
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static void
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add_actor (ClutterBoxLayout *box)
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{
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ClutterActor *rect;
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ClutterColor color = { 0xff, 0xff, 0xff, 255 };
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static gboolean expand = TRUE;
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clutter_color_from_hls (&color,
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g_random_double_range (0.0, 360.0),
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0.5,
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0.5);
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rect = clutter_rectangle_new_with_color (&color);
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clutter_actor_set_size (rect, 32, 64);
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clutter_box_layout_pack (box, rect, expand,
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FALSE, /* x-fill */
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FALSE, /* y-fill */
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CLUTTER_BOX_ALIGNMENT_CENTER,
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CLUTTER_BOX_ALIGNMENT_CENTER);
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clutter_actor_set_reactive (rect, TRUE);
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g_signal_connect (rect, "enter-event", G_CALLBACK (enter_event), NULL);
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g_signal_connect (rect, "leave-event", G_CALLBACK (leave_event), NULL);
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g_signal_connect (rect, "button-release-event",
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G_CALLBACK (button_release_event),
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box);
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expand = !expand;
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}
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static gboolean
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key_release_cb (ClutterActor *actor,
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ClutterEvent *event,
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ClutterBoxLayout *layout)
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{
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gboolean toggle;
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guint spacing;
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switch (clutter_event_get_key_symbol (event))
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{
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case CLUTTER_v:
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toggle = clutter_box_layout_get_vertical (layout);
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clutter_box_layout_set_vertical (layout, !toggle);
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break;
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case CLUTTER_p:
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toggle = clutter_box_layout_get_pack_start (layout);
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clutter_box_layout_set_pack_start (layout, !toggle);
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break;
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case CLUTTER_s:
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spacing = clutter_box_layout_get_spacing (layout);
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if (spacing > 12)
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spacing = 0;
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else
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spacing++;
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clutter_box_layout_set_spacing (layout, spacing);
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break;
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case '+':
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add_actor (layout);
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break;
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default:
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return FALSE;
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}
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return TRUE;
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}
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static void
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stage_size_changed_cb (ClutterActor *stage,
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const ClutterActorBox *allocation,
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ClutterAllocationFlags flags,
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ClutterActor *box)
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{
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gfloat width, height;
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clutter_actor_box_get_size (allocation, &width, &height);
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clutter_actor_set_size (box, width - 100, height - 100);
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}
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G_MODULE_EXPORT int
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test_box_layout_main (int argc, char *argv[])
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{
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ClutterActor *stage, *box;
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ClutterLayoutManager *layout;
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gint i;
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clutter_init (&argc, &argv);
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stage = clutter_stage_get_default ();
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clutter_stage_set_title (CLUTTER_STAGE (stage), "Box Layout");
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clutter_stage_set_user_resizable (CLUTTER_STAGE (stage), TRUE);
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clutter_actor_set_size (stage, 640, 480);
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layout = clutter_box_layout_new ();
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box = clutter_box_new (layout);
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clutter_container_add_actor (CLUTTER_CONTAINER (stage), box);
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for (i = 0; i < 5; i++)
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add_actor (CLUTTER_BOX_LAYOUT (layout));
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g_signal_connect (stage, "key-release-event",
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G_CALLBACK (key_release_cb),
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layout);
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g_signal_connect (stage, "allocation-changed",
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G_CALLBACK (stage_size_changed_cb),
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box);
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clutter_actor_show (stage);
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clutter_main ();
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return EXIT_SUCCESS;
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}
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