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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
namespace ElmSharp
{
public enum ScrollBarVisiblePolicy
{
Auto = 0,
Visible,
Invisible
}
public enum ScrollBlock
{
None = 1,
Vertical = 2,
Horizontal = 4
}
public class Scroller : Layout
{
SmartEvent _scroll;
SmartEvent _dragStart;
SmartEvent _dragStop;
SmartEvent _scrollpage;
public Scroller(EvasObject parent) : base(parent)
{
_scroll = new SmartEvent(this, this.RealHandle, "scroll");
_dragStart = new SmartEvent(this, this.RealHandle, "scroll,drag,start");
_dragStop = new SmartEvent(this, this.RealHandle, "scroll,drag,stop");
_scrollpage = new SmartEvent(this, this.RealHandle, "scroll,page,changed");
}
public event EventHandler Scrolled
{
add
{
_scroll.On += value;
}
remove
{
_scroll.On -= value;
}
}
public event EventHandler DragStart
{
add
{
_dragStart.On += value;
}
remove
{
_dragStart.On -= value;
}
}
public event EventHandler DragStop
{
add
{
_dragStop.On += value;
}
remove
{
_dragStop.On -= value;
}
}
public event EventHandler PageScrolled
{
add
{
_scrollpage.On += value;
}
remove
{
_scrollpage.On -= value;
}
}
public Rect CurrentRegion
{
get
{
int x, y, w, h;
Interop.Elementary.elm_scroller_region_get(RealHandle, out x, out y, out w, out h);
return new Rect(x, y, w, h);
}
}
public ScrollBarVisiblePolicy HorizontalScrollBarVisiblePolicy
{
get
{
int policy;
Interop.Elementary.elm_scroller_policy_get(RealHandle, out policy, IntPtr.Zero);
return (ScrollBarVisiblePolicy)policy;
}
set
{
ScrollBarVisiblePolicy v = VerticalScrollBarVisiblePolicy;
Interop.Elementary.elm_scroller_policy_set(RealHandle, (int)value, (int)v);
}
}
public ScrollBarVisiblePolicy VerticalScrollBarVisiblePolicy
{
get
{
int policy;
Interop.Elementary.elm_scroller_policy_get(RealHandle, IntPtr.Zero, out policy);
return (ScrollBarVisiblePolicy)policy;
}
set
{
ScrollBarVisiblePolicy h = HorizontalScrollBarVisiblePolicy;
Interop.Elementary.elm_scroller_policy_set(RealHandle, (int)h, (int)value);
}
}
public ScrollBlock ScrollBlock
{
get
{
return (ScrollBlock)Interop.Elementary.elm_scroller_movement_block_get(RealHandle);
}
set
{
Interop.Elementary.elm_scroller_movement_block_set(RealHandle, (int)value);
}
}
public int VerticalPageIndex
{
get
{
int v, h;
Interop.Elementary.elm_scroller_current_page_get(RealHandle, out h, out v);
return v;
}
}
public int HorizontalPageIndex
{
get
{
int v, h;
Interop.Elementary.elm_scroller_current_page_get(RealHandle, out h, out v);
return h;
}
}
public int VerticalPageScrollLimit
{
get
{
int v, h;
Interop.Elementary.elm_scroller_page_scroll_limit_get(RealHandle, out h, out v);
return v;
}
set
{
int h = HorizontalPageScrollLimit;
Interop.Elementary.elm_scroller_page_scroll_limit_set(RealHandle, h, value);
}
}
public int HorizontalPageScrollLimit
{
get
{
int v, h;
Interop.Elementary.elm_scroller_page_scroll_limit_get(RealHandle, out h, out v);
return h;
}
set
{
int v = VerticalPageScrollLimit;
Interop.Elementary.elm_scroller_page_scroll_limit_set(RealHandle, value, v);
}
}
public void SetPageSize(int width, int height)
{
Interop.Elementary.elm_scroller_page_size_set(RealHandle, width, height);
}
public void SetPageSize(double width, double height)
{
Interop.Elementary.elm_scroller_page_relative_set(RealHandle, width, height);
}
public void ScrollTo(int horizontalPageIndex, int verticalPageIndex, bool animated)
{
if (animated)
{
Interop.Elementary.elm_scroller_page_bring_in(RealHandle, horizontalPageIndex, verticalPageIndex);
}
else
{
Interop.Elementary.elm_scroller_page_show(RealHandle, horizontalPageIndex, verticalPageIndex);
}
}
public void ScrollTo(Rect region, bool animated)
{
if (animated)
{
Interop.Elementary.elm_scroller_region_bring_in(RealHandle, region.X, region.Y, region.Width, region.Height);
}
else
{
Interop.Elementary.elm_scroller_region_show(RealHandle, region.X, region.Y, region.Width, region.Height);
}
}
protected override IntPtr CreateHandle(EvasObject parent)
{
IntPtr handle = Interop.Elementary.elm_layout_add(parent.Handle);
Interop.Elementary.elm_layout_theme_set(handle, "layout", "elm_widget", "default");
RealHandle = Interop.Elementary.elm_scroller_add(handle);
Interop.Elementary.elm_object_part_content_set(handle, "elm.swallow.content", RealHandle);
return handle;
}
}
}
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