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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: Jay Taoko <jay.taoko@canonical.com>
* Authored by: Mirco Müller <mirco.mueller@canonical.com>
*/
#ifndef STATICCAIROTEXT_H
#define STATICCAIROTEXT_H
#include "Nux/Nux.h"
#include "Nux/View.h"
//#include "NuxGraphics/OpenGLEngine.h"
#include "Nux/TextureArea.h"
#include "NuxImage/CairoGraphics.h"
#include <pango/pango.h>
#include <pango/pangocairo.h>
#if defined(NUX_OS_LINUX)
#include <X11/Xlib.h>
#endif
namespace nux
{
class Validator;
class StaticCairoText : public View
{
public:
typedef enum
{
NUX_ELLIPSIZE_END,
NUX_ELLIPSIZE_START,
NUX_ELLIPSIZE_MIDDLE,
NUX_ELLIPSIZE_NONE,
} EllipsizeState;
typedef enum
{
NUX_ALIGN_LEFT,
NUX_ALIGN_CENTRE,
NUX_ALIGN_RIGHT,
} AlignState;
StaticCairoText (const TCHAR* text, NUX_FILE_LINE_PROTO);
~StaticCairoText ();
void PreLayoutManagement ();
long PostLayoutManagement (long layoutResult);
long ProcessEvent (IEvent& event,
long traverseInfo,
long processEventInfo);
void Draw (GraphicsEngine& gfxContext,
bool forceDraw);
void DrawContent (GraphicsEngine& gfxContext,
bool forceDraw);
void PostDraw (GraphicsEngine& gfxContext,
bool forceDraw);
// public API
void SetText (NString text);
void SetTextColor (Color textColor);
void SetTextEllipsize (EllipsizeState state);
void SetTextAlignment (AlignState state);
void SetFont (const char *fontstring);
void GetTextExtents (int &width, int &height);
sigc::signal<void, StaticCairoText*> sigTextChanged;
sigc::signal<void, StaticCairoText*> sigTextColorChanged;
sigc::signal<void, StaticCairoText*> sigFontChanged;
virtual bool CanFocus ();
private:
int _cached_extent_width;
int _cached_extent_height;
bool _need_new_extent_cache;
NString _text;
Color _textColor;
EllipsizeState _ellipsize;
AlignState _align;
char* _fontstring;
CairoGraphics* _cairoGraphics;
BaseTexture* _texture2D;
int _pre_layout_width;
int _pre_layout_height;
void GetTextExtents (const TCHAR* font,
int& width,
int& height);
void DrawText (cairo_t* cr,
int width,
int height,
Color color);
void UpdateTexture ();
static void OnFontChanged (GObject *gobject, GParamSpec *pspec,
gpointer data);
};
}
#endif // STATICCAIROTEXT_H
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