~didrocks/unity/fixes-natty-finale

// -*- 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: Jay Taoko <jay.taoko@canonical.com>

 * Authored by: Mirco Müller <mirco.mueller@canonical.com

 */

#ifndef TOOLTIP_H

#define TOOLTIP_H

#include "Nux/Nux.h"

#include "Nux/BaseWindow.h"

#include "NuxGraphics/GraphicsEngine.h"

#include "Nux/TextureArea.h"

#include "NuxImage/CairoGraphics.h"

#include "StaticCairoText.h"

#include <pango/pango.h>

#include <pango/pangocairo.h>

#include "Introspectable.h"

#if defined(NUX_OS_LINUX)

#include <X11/Xlib.h>

#endif

#define ANCHOR_WIDTH         10.0f

#define ANCHOR_HEIGHT        18.0f

#define HIGH_LIGHT_Y         -30.0f

#define HIGH_LIGHT_MIN_WIDTH 200.0f 

#define RADIUS               5.0f

#define BLUR_INTENSITY       8

#define LINE_WIDTH           1.0f

#define PADDING_SIZE         1

#define H_MARGIN             30

#define V_MARGIN             4

#define FONT_FACE            "Ubuntu 13"

class QuicklistMenuItem;

namespace nux

{

  class VLayout;

  class HLayout;

  class SpaceLayout;

  class Tooltip : public BaseWindow, public Introspectable

  {

    NUX_DECLARE_OBJECT_TYPE (Tooltip, BaseWindow);

  public:

    Tooltip ();

    ~Tooltip ();

    long ProcessEvent (IEvent& iEvent,

      long    traverseInfo,

      long    processEventInfo);

    void Draw (GraphicsEngine& gfxContext,

      bool             forceDraw);

    void DrawContent (GraphicsEngine& gfxContext,

      bool             forceDraw);

    void SetText (NString text);

    void ShowTooltipWithTipAt (int anchor_tip_x, int anchor_tip_y);

    // Introspection

    const gchar* GetName ();

    void AddProperties (GVariantBuilder *builder);

  private:

    void RecvCairoTextChanged (StaticCairoText* cairo_text);

    void PreLayoutManagement ();

    long PostLayoutManagement (long layoutResult);

    void PositionChildLayout (float offsetX,

      float offsetY);

    void LayoutWindowElements ();

    void NotifyConfigurationChange (int width,

      int height);

    //nux::CairoGraphics*   _cairo_graphics;

    int                   _anchorX;

    int                   _anchorY;

    nux::NString          _labelText;

    int                   _dpiX;

    int                   _dpiY;

    int                   _top_size; // size of the segment from point 13 to 14. See figure in _compute_full_mask_path.

    cairo_font_options_t* _fontOpts;

    nux::StaticCairoText* _tooltip_text;

    nux::BaseTexture*     _texture_bg;

    nux::BaseTexture*     _texture_mask;

    nux::BaseTexture*     _texture_outline;

    float _anchor_width;

    float _anchor_height;

    float _corner_radius;

    float _padding;

    nux::HLayout *_hlayout;

    VLayout *_vlayout;

    nux::SpaceLayout *_left_space;  //!< Space from the left of the widget to the left of the text.

    nux::SpaceLayout *_right_space; //!< Space from the right of the text to the right of the widget.

    nux::SpaceLayout *_top_space;  //!< Space from the left of the widget to the left of the text.

    nux::SpaceLayout *_bottom_space; //!< Space from the right of the text to the right of the widget.

    bool _cairo_text_has_changed;

    void UpdateTexture ();

    // Introspection

    gchar *_name;

  };

}

#endif // TOOLTIP_H