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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 "config.h"
#include "TextureCache.h"
#include "Nux/Nux.h"
#include "PlacesTile.h"
#define PADDING 8
#define BLUR_SIZE 5
PlacesTile::PlacesTile (NUX_FILE_LINE_DECL, const void *id) :
View (NUX_FILE_LINE_PARAM),
_id (id),
_hilight_background (NULL),
_hilight_layer (NULL),
_last_width (0),
_last_height (0)
{
OnMouseDown.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseDown));
OnMouseUp.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseUp));
OnMouseClick.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseClick));
OnMouseEnter.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseEnter));
OnMouseLeave.connect (sigc::mem_fun (this, &PlacesTile::RecvMouseLeave));
FocusChanged.connect (sigc::mem_fun (this, &PlacesTile::OnFocusChanged));
FocusActivated.connect (sigc::mem_fun (this, &PlacesTile::OnFocusActivated));
_can_pass_focus_to_composite_layout = false;
}
PlacesTile::~PlacesTile ()
{
if (_hilight_background)
{
_hilight_background->UnReference ();
con_obj.disconnect ();
}
if (_hilight_layer)
delete _hilight_layer;
}
const void *
PlacesTile::GetId ()
{
return _id;
}
void
PlacesTile::OnFocusChanged (nux::Area *area)
{
QueueDraw ();
}
nux::Geometry
PlacesTile::GetHighlightGeometry ()
{
return GetGeometry ();
}
void
PlacesTile::DrawHighlight (const char *texid, int width, int height, nux::BaseTexture **texture)
{
nux::Geometry base = GetGeometry ();
nux::Geometry highlight_geo = GetHighlightGeometry ();
nux::CairoGraphics *cairo_graphics = new nux::CairoGraphics (CAIRO_FORMAT_ARGB32,
highlight_geo.width + PADDING + (BLUR_SIZE*3),
highlight_geo.height + PADDING + (BLUR_SIZE*3));
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);
int bg_width = highlight_geo.width + PADDING;
int bg_height = highlight_geo.height + PADDING;
int bg_x = BLUR_SIZE;
int bg_y = BLUR_SIZE;
// draw the glow
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_set_line_width (cr, 1.0f);
cairo_set_source_rgba (cr, 1.0f, 1.0f, 1.0f, 0.75f);
cairo_graphics->DrawRoundedRectangle (cr,
1.0f,
bg_x,
bg_y,
5.0,
bg_width,
bg_height,
true);
cairo_fill (cr);
cairo_graphics->BlurSurface (BLUR_SIZE - 2);
// draw tiled background
// set up clip path
cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
cairo_graphics->DrawRoundedRectangle (cr,
1.0,
bg_x,
bg_y,
5.0,
bg_width,
bg_height,
true);
cairo_clip (cr);
int w, h;
cairo_surface_t *image;
cairo_pattern_t *pattern;
cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 1.0);
image = cairo_image_surface_create_from_png (PKGDATADIR"/places-tile-bg-tilable.png");
w = cairo_image_surface_get_width (image);
h = cairo_image_surface_get_height (image);
pattern = cairo_pattern_create_for_surface (image);
cairo_pattern_set_extend (pattern, CAIRO_EXTEND_REPEAT);
cairo_set_source (cr, pattern);
cairo_rectangle (cr, 0, 0, base.width, base.height);
cairo_fill (cr);
cairo_pattern_destroy (pattern);
cairo_surface_destroy (image);
// draw the outline
cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
cairo_graphics->DrawRoundedRectangle (cr,
1.0,
bg_x,
bg_y,
5.0,
bg_width,
bg_height,
true);
cairo_set_source_rgba (cr, 0.66, 0.66, 0.66, 1.0);
cairo_set_line_width (cr, 1.0);
cairo_stroke (cr);
cairo_destroy (cr);
nux::NBitmapData *bitmap = cairo_graphics->GetBitmap();
nux::BaseTexture *tex = nux::GetThreadGLDeviceFactory()->CreateSystemCapableTexture ();
tex->Update (bitmap);
*texture = tex;
delete bitmap;
}
void
PlacesTile::OnDestroyNotify (nux::Trackable *Object)
{
g_warning ("Texture destroyed before we were ready");
_hilight_background = NULL;
UpdateBackground ();
}
void
PlacesTile::UpdateBackground ()
{
nux::Geometry base = GetGeometry ();
nux::Geometry highlight_geo = GetHighlightGeometry ();
if ((base.width == _last_width) && (base.height == _last_height))
return;
_last_width = base.width;
_last_height = base.height;
// try and get a texture from the texture cache
TextureCache *cache = TextureCache::GetDefault ();
nux::BaseTexture * hilight_tex = cache->FindTexture ("PlacesTile.HilightTexture",
highlight_geo.width, highlight_geo.height,
sigc::mem_fun (this, &PlacesTile::DrawHighlight));
if (_hilight_background)
{
_hilight_background->UnReference ();
con_obj.disconnect ();
}
con_obj = hilight_tex->OnDestroyed.connect (sigc::mem_fun (this, &PlacesTile::OnDestroyNotify));
_hilight_background = hilight_tex;
_hilight_background->Reference ();
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);
}
long
PlacesTile::ProcessEvent(nux::IEvent &ievent, long TraverseInfo, long ProcessEventInfo)
{
return PostProcessEvent2 (ievent, TraverseInfo, ProcessEventInfo);
}
void
PlacesTile::Draw (nux::GraphicsEngine& gfxContext,
bool forceDraw)
{
nux::Geometry base = GetGeometry ();
nux::GetPainter ().PaintBackground (gfxContext, base);
gfxContext.PushClippingRectangle (base);
if (GetFocused () || IsMouseInside ())
{
UpdateBackground ();
nux::Geometry hl_geo = GetHighlightGeometry ();
nux::Geometry total_highlight_geo = nux::Geometry (base.x + hl_geo.x - (PADDING)/2 - BLUR_SIZE - 1,
base.y + hl_geo.y - (PADDING)/2 - BLUR_SIZE - 1,
hl_geo.width + PADDING + 1 + BLUR_SIZE*2,
hl_geo.height + PADDING + 1 + BLUR_SIZE*2);
_hilight_layer->SetGeometry (total_highlight_geo);
nux::GetPainter ().RenderSinglePaintLayer (gfxContext, total_highlight_geo, _hilight_layer);
}
gfxContext.PopClippingRectangle ();
}
void
PlacesTile::DrawContent (nux::GraphicsEngine &GfxContext, bool force_draw)
{
nux::Geometry base = GetGeometry ();
GfxContext.PushClippingRectangle (base);
if (GetFocused () || IsMouseInside ())
{
UpdateBackground ();
nux::Geometry hl_geo = GetHighlightGeometry ();
nux::Geometry total_highlight_geo = nux::Geometry (base.x + hl_geo.x - (PADDING)/2 - BLUR_SIZE - 1,
base.y + hl_geo.y - (PADDING)/2 - BLUR_SIZE - 1,
hl_geo.width + PADDING + 1 + BLUR_SIZE*2,
hl_geo.height + PADDING + 1 + BLUR_SIZE*2);
nux::GetPainter ().PushLayer (GfxContext, total_highlight_geo, _hilight_layer);
}
if (GetCompositionLayout ())
GetCompositionLayout ()->ProcessDraw (GfxContext, force_draw);
if (IsMouseInside () || GetFocused ())
nux::GetPainter ().PopBackground ();
GfxContext.PopClippingRectangle();
}
void
PlacesTile::RecvMouseClick (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
if (nux::GetEventButton (button_flags) == 1)
sigClick.emit (this);
QueueDraw ();
}
void
PlacesTile::RecvMouseUp (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
QueueDraw ();
}
void
PlacesTile::RecvMouseDown (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
QueueDraw ();
}
void
PlacesTile::RecvMouseEnter (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
QueueDraw ();
}
void
PlacesTile::RecvMouseLeave (int x, int y, unsigned long button_flags, unsigned long key_flags)
{
QueueDraw ();
}
void
PlacesTile::OnFocusActivated (nux::Area *area)
{
sigClick.emit (this);
}
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