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/*
* Copyright 2011 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser 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 warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License version 3 along with this program. If not, see
* <http://www.gnu.org/licenses/>
*
* Authored by: Gordon Allott <gord.allott@canonical.com>
*
*/
#include "Nux/Nux.h"
#include "PlacesTile.h"
PlacesTile::PlacesTile (NUX_FILE_LINE_DECL) :
View (NUX_FILE_LINE_PARAM),
_hilight_background (NULL),
_hilight_layer (NULL),
_last_width (0),
_last_height (0)
{
_state = STATE_DEFAULT;
OnMouseDown.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseDown));
OnMouseUp.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseUp));
OnMouseClick.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseClick));
OnMouseMove.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseMove));
//OnMouseDrag.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseDrag));
OnMouseEnter.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseEnter));
OnMouseLeave.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseLeave));
_hilight_view = this;
}
PlacesTile::~PlacesTile ()
{
}
void
PlacesTile::UpdateBackground ()
{
nux::Geometry base = GetGeometry ();
if ((base.width == _last_width) && (base.height == _last_height))
return;
_last_width = base.width;
_last_height = base.height;
nux::CairoGraphics *cairo_graphics = new nux::CairoGraphics (CAIRO_FORMAT_ARGB32, base.width, base.height);
cairo_t *cr = cairo_graphics->GetContext();
cairo_scale (cr, 1.0f, 1.0f);
cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.0);
cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
cairo_paint (cr);
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
DrawRoundedRectangle (cr, 1.0, 6.0, 6.0, 15.0, base.width - 12 , base.height - 12);
cairo_set_source_rgba (cr, 0.25, 0.25, 0.25, 0.25);
cairo_fill_preserve (cr);
cairo_set_source_rgba (cr, 1, 1, 1, 1.0);
cairo_set_line_width (cr, 1.0);
cairo_stroke (cr);
cairo_destroy (cr);
nux::NBitmapData* bitmap = cairo_graphics->GetBitmap();
if (_hilight_background)
_hilight_background->UnReference ();
_hilight_background = nux::GetThreadGLDeviceFactory()->CreateSystemCapableTexture ();
_hilight_background->Update (bitmap);
delete bitmap;
nux::ROPConfig rop;
rop.Blend = true;
rop.SrcBlend = GL_ONE;
rop.DstBlend = GL_ONE_MINUS_SRC_ALPHA;
nux::TexCoordXForm texxform;
texxform.SetTexCoordType (nux::TexCoordXForm::OFFSET_COORD);
texxform.SetWrap (nux::TEXWRAP_REPEAT, nux::TEXWRAP_REPEAT);
if (_hilight_layer)
delete _hilight_layer;
_hilight_layer = new nux::TextureLayer (_hilight_background->GetDeviceTexture(),
texxform,
nux::Color::White,
true,
rop);
_hilight_background->UnReference ();
_hilight_background = NULL;
delete cairo_graphics;
}
static inline double
_align (double val)
{
double fract = val - (int) val;
if (fract != 0.5f)
return (double) ((int) val + 0.5f);
else
return val;
}
void
PlacesTile::DrawRoundedRectangle (cairo_t* cr,
double aspect,
double x,
double y,
double cornerRadius,
double width,
double height)
{
double radius = cornerRadius / aspect;
// top-left, right of the corner
cairo_move_to (cr, _align (x + radius), _align (y));
// top-right, left of the corner
cairo_line_to (cr, _align (x + width - radius), _align (y));
// top-right, below the corner
cairo_arc (cr,
_align (x + width - radius),
_align (y + radius),
radius,
-90.0f * G_PI / 180.0f,
0.0f * G_PI / 180.0f);
// bottom-right, above the corner
cairo_line_to (cr, _align (x + width), _align (y + height - radius));
// bottom-right, left of the corner
cairo_arc (cr,
_align (x + width - radius),
_align (y + height - radius),
radius,
0.0f * G_PI / 180.0f,
90.0f * G_PI / 180.0f);
// bottom-left, right of the corner
cairo_line_to (cr, _align (x + radius), _align (y + height));
// bottom-left, above the corner
cairo_arc (cr,
_align (x + radius),
_align (y + height - radius),
radius,
90.0f * G_PI / 180.0f,
180.0f * G_PI / 180.0f);
// top-left, right of the corner
cairo_arc (cr,
_align (x + radius),
_align (y + radius),
radius,
180.0f * G_PI / 180.0f,
270.0f * G_PI / 180.0f);
}
long PlacesTile::ProcessEvent (nux::IEvent &ievent, long TraverseInfo, long ProcessEventInfo)
{
long ret = TraverseInfo;
ret = PostProcessEvent2 (ievent, ret, ProcessEventInfo);
return ret;
}
void PlacesTile::Draw (nux::GraphicsEngine& gfxContext,
bool forceDraw)
{
UpdateBackground ();
nux::Geometry base = GetGeometry ();
gfxContext.PushClippingRectangle (base);
nux::GetPainter ().PaintBackground (gfxContext, GetGeometry ());
if (_state == STATE_HOVER)
{
gPainter.PushDrawLayer (gfxContext, GetGeometry (), _hilight_layer);
gPainter.PopBackground ();
}
gfxContext.PopClippingRectangle ();
}
void PlacesTile::DrawContent (nux::GraphicsEngine &GfxContext, bool force_draw)
{
UpdateBackground ();
GfxContext.PushClippingRectangle (GetGeometry() );
if (_state == STATE_HOVER)
nux::GetPainter ().PushLayer (GfxContext, GetGeometry (), _hilight_layer);
_layout->ProcessDraw (GfxContext, force_draw);
if (_state == STATE_HOVER)
nux::GetPainter ().PopBackground ();
GfxContext.PopClippingRectangle();
}
void PlacesTile::PostDraw (nux::GraphicsEngine &GfxContext, bool force_draw)
{
}
void
PlacesTile::PreLayoutManagement ()
{
nux::View::PreLayoutManagement ();
}
long
PlacesTile::PostLayoutManagement (long LayoutResult)
{
return nux::View::PostLayoutManagement (LayoutResult);
}
void PlacesTile::SetState (TileState state)
{
_state = state;
NeedRedraw ();
}
PlacesTile::TileState PlacesTile::GetState ()
{
return _state;
}
void PlacesTile::RecvMouseClick (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
sigClick.emit(this);
NeedRedraw();
_layout->NeedRedraw ();
}
void PlacesTile::RecvMouseUp (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
NeedRedraw();
_layout->NeedRedraw ();
}
void PlacesTile::RecvMouseDown (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
_state = STATE_PRESSED;
NeedRedraw();
_layout->NeedRedraw ();
}
void PlacesTile::RecvMouseMove (int x, int y, int dx, int dy, unsigned long button_flags, unsigned long key_flags)
{
}
void PlacesTile::RecvMouseEnter (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
SetState (STATE_HOVER);
NeedRedraw();
_layout->NeedRedraw ();
}
void PlacesTile::RecvMouseLeave (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
SetState (STATE_DEFAULT);
NeedRedraw();
_layout->NeedRedraw ();
}
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