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// -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
/*
* Copyright (C) 2010 Canonical Ltd
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authored by: Jason Smith <jason.smith@canonical.com>
*/
#include "Nux/Nux.h"
#include "Nux/BaseWindow.h"
#include "NuxGraphics/GraphicsEngine.h"
#include "Nux/TextureArea.h"
#include "LauncherDragWindow.h"
NUX_IMPLEMENT_OBJECT_TYPE (LauncherDragWindow);
LauncherDragWindow::LauncherDragWindow (nux::IntrusiveSP<nux::IOpenGLBaseTexture> icon)
: nux::BaseWindow ("")
{
_icon = icon;
_anim_handle = 0;
SetBaseSize (_icon->GetWidth(), _icon->GetHeight());
}
LauncherDragWindow::~LauncherDragWindow ()
{
if (_anim_handle)
g_source_remove (_anim_handle);
}
bool
LauncherDragWindow::Animating ()
{
return _anim_handle != 0;
}
void
LauncherDragWindow::SetAnimationTarget (int x, int y)
{
_animation_target = nux::Point2 (x, y);
}
void
LauncherDragWindow::StartAnimation ()
{
if (_anim_handle)
return;
_anim_handle = g_timeout_add (15, &LauncherDragWindow::OnAnimationTimeout, this);
}
gboolean
LauncherDragWindow::OnAnimationTimeout (gpointer data)
{
LauncherDragWindow *self = (LauncherDragWindow*) data;
nux::Geometry geo = self->GetGeometry ();
int half_size = geo.width / 2;
int target_x = (int) (self->_animation_target.x) - half_size;
int target_y = (int) (self->_animation_target.y) - half_size;
int x_delta = (int) ((float) (target_x - geo.x) * .3f);
if (abs (x_delta) < 5)
x_delta = (x_delta >= 0) ? MIN (5, target_x - geo.x) : MAX (-5, target_x - geo.x);
int y_delta = (int) ((float) (target_y - geo.y) * .3f);
if (abs (y_delta) < 5)
y_delta = (y_delta >= 0) ? MIN (5, target_y - geo.y) : MAX (-5, target_y - geo.y);
self->SetBaseXY (geo.x + x_delta, geo.y + y_delta);
geo = self->GetGeometry ();
if (geo.x == target_x && geo.y == target_y)
{
self->anim_completed.emit ();
self->_anim_handle = 0;
return false;
}
return true;
}
void
LauncherDragWindow::DrawContent (nux::GraphicsEngine& GfxContext, bool force_draw)
{
nux::Geometry geo = GetGeometry ();
geo.SetX (0);
geo.SetY (0);
GfxContext.PushClippingRectangle (geo);
nux::TexCoordXForm texxform;
texxform.FlipVCoord (true);
GfxContext.QRP_1Tex (0,
0,
_icon->GetWidth(),
_icon->GetHeight(),
_icon,
texxform,
nux::Color::White);
GfxContext.PopClippingRectangle ();
}
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