head	1.2;
access;
symbols;
locks; strict;
comment	@ * @;


1.2
date	2005.12.10.14.03.33;	author macslow;	state Exp;
branches;
next	1.1;
commitid	14eb439adf824567;

1.1
date	2005.09.30.10.04.11;	author macslow;	state Exp;
branches;
next	;
commitid	5ce2433d0c934567;


desc
@@


1.2
log
@Added two new cairo-hacks/samples, made cairo-in-motion use cairomm-0.2.0
and added a slider controlling the "smoothness" (read: updates per second)
of the animation
@
text
@// "cairo in motion" is a testbed for animated vector-drawing
// using cairo within a gtk+-environment
//
// Copyright (C) 2005 Mirco Mueller <macslow@@bangang.de>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// at your option) any later version.
//
// 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef _CAIROSAMPLES_H_
#define _CAIROSAMPLES_H_

#include <cairomm/cairomm.h>
#include <string>
#include <gdkmm.h>

#include "sample-list-store.h"

typedef struct _HandlePoint
{
	double x;
	double y;
} HandlePoint;

class CairoSamples
{
	public:
		CairoSamples ();
		~CairoSamples ();

		typedef struct _Entry
		{
			std::string	name;
		} Entry;

		enum Sample
		{
			CurveRectangle = 0,
			Clock,
			FillAndStroke,
			FillAndStroke2,
			Fontmania,
			Gradient,
			Image,
			ImagePattern,
			LibSVG,
			MovingArc,
			MovingArcNegative,
			MovingCairoLogo,
			MovingClip,
			MovingClipImage,
			MovingCurveTo,
			MovingGradient,
			MovingGradient2,
			MovingZini,
			OperatorAdd,
			OperatorAtop,
			OperatorAtopReverse,
			OperatorIn,
			OperatorInReverse,
			OperatorOut,
			OperatorOutReverse,
			OperatorOver,
			OperatorOverReverse,
			OperatorSaturate,
			OperatorXor,
			Path,
			PatternFill,
			SetLineCap,
			SetLineJoin,
			TextAlignCenter,
			Text,
			TextExtents,
			XxxClipRectangle,
			XxxDash,
			XxxLongLines,
			XxxMultiSegmentCaps,
			XxxSelfIntersect,
			NumberOfSamples
		};

		enum DashStyle
		{
			DashOff = 0,
			Dotted,
			Dashed,
			DashDotDash,
			DashedFunky
		};

		void do_animation_step (unsigned long ulMilliSeconds);
		void set_context (Cairo::Context* pCairoContext);
		void normalize_canvas (double fWidth, double fHeight) const;
		void set_bg_svg (std::string strSVGFileName);
		bool do_sample (Sample sample);
		void set_cap_style (Cairo::LineCap cairoCapStyle);
		void set_join_style (Cairo::LineJoin cairoJoinStyle);
		void set_dash_style (DashStyle dashStyle);
		void set_operator (Cairo::Operator cairoOperator);
		void set_extend_mode (Cairo::Extend cairoExtendMode);
		void set_filter_mode (Cairo::Filter cairoFilterMode);
		void set_line_width (double fLineWidth);
		void set_bg_color (Gdk::Color bgColor);
		void set_font_family (std::string strFontFamily);
		void set_font_size (double fFontSize);
		void set_font_weight (Cairo::FontWeight cairoFontWeight);
		void set_font_slant (Cairo::FontSlant cairoFontSlant);
		void set_some_text (std::string strSomeText);
		void set_image_file_name (std::string strFileName);
		void set_svg_file_name (std::string strFileName);
		void add_samples_to_list_store (SampleListStore* pSampleListStore);
		std::string get_sample_name (Sample sample);

	private:
		void update_var (double* pfValue,
						 double fLowerLimit,
						 double fUpperLimit,
						 double* pfStep,
						 double fGrow,
						 double fShrink);
		HandlePoint get_center ();
		HandlePoint get_point1 ();
		HandlePoint get_point2 ();
		HandlePoint get_point3 ();
		HandlePoint get_point4 ();
		double get_radius ();
		double get_angle_1 ();
		double get_angle_2 ();
		void draw_background ();
		void draw_background (Gdk::Color color);
		void draw_handle (double fX, double fY);
		void draw_handle (HandlePoint* pPoint);
		bool sample_fallback (std::string strMessage);
		bool curve_rectangle ();
		bool clock ();
		bool fill_and_stroke ();
		bool fill_and_stroke2 ();
		bool fontmania ();
		bool gradient ();
		bool image ();
		bool image_pattern ();
		bool libsvg ();
		bool moving_arc ();
		bool moving_arc_negative ();
		bool moving_cairo_logo ();
		bool moving_clip ();
		bool moving_clip_image ();
		bool moving_curve_to ();
		bool moving_gradient ();
		bool moving_gradient2 ();
		bool moving_zini ();
		bool operator_add ();
		bool operator_atop ();
		bool operator_atop_reverse ();
		bool operator_in ();
		bool operator_in_reverse ();
		bool operator_out ();
		bool operator_out_reverse ();
		bool operator_over ();
		bool operator_over_reverse ();
		bool operator_saturate ();
		bool operator_xor ();
		bool path ();
		bool pattern_fill ();
		bool set_line_cap ();
		bool set_line_join ();
		bool text_align_center ();
		bool text ();
		bool text_extents ();
		bool xxx_clip_rectangle ();
		bool xxx_dash ();
		bool xxx_long_lines ();
		bool xxx_multi_segment_caps ();
		bool xxx_self_intersect ();

	protected:
		HandlePoint			m_center;
		HandlePoint			m_point1;
		HandlePoint			m_point2;
		HandlePoint			m_point3;
		HandlePoint			m_point4;
		double				m_fRadius;
		double				m_fAngle1;
		double				m_fAngle2;
		double				m_centerXStep;
		double				m_centerYStep;
		double				m_point1XStep;
		double				m_point1YStep;
		double				m_point2XStep;
		double				m_point2YStep;
		double				m_point3XStep;
		double				m_point3YStep;
		double				m_point4XStep;
		double				m_point4YStep;
		double				m_fRadiusStep;
		double				m_fAngle1Step;
		double				m_fAngle2Step;
		Cairo::Context*		m_pCairoContext;
		Cairo::LineCap		m_cairoCapStyle;
		Cairo::LineJoin		m_cairoJoinStyle;
		DashStyle			m_dashStyle;
		Cairo::Operator		m_cairoOperator;
		Cairo::Extend		m_cairoExtendMode;
		Cairo::Filter		m_cairoFilterMode;
		double				m_fLineWidth;
		Gdk::Color			m_bgColor;
		std::string			m_strFontFamily;
		double				m_fFontSize;
		Cairo::FontWeight	m_cairoFontWeight;
		Cairo::FontSlant	m_cairoFontSlant;
		std::string			m_strSomeText;
		std::string			m_strImageFileName;
		std::string			m_strSvgFileName;
		std::vector<Entry>	m_sampleList;
		unsigned long		m_ulMilliSeconds;
};

#endif /*_CAIROSAMPLES_H_*/
@


1.1
log
@a little learning toy usable for testing out code-smidgens of cairo-effects
@
text
@d23 1
a23 1
#include <cairo.h>
d49 1
d65 1
d101 2
a102 2
		void do_animation_step ();
		void set_context (cairo_t* pCairoContext);
d104 4
a107 4
		void set_bg_svg (std::string strSVGFileName) const;
		bool do_sample (Sample sample) const;
		void set_cap_style (cairo_line_cap_t cairoCapStyle);
		void set_join_style (cairo_line_join_t cairoJoinStyle);
d109 3
a111 3
		void set_operator (cairo_operator_t cairoOperator);
		void set_extend_mode (cairo_extend_t cairoExtendMode);
		void set_filter_mode (cairo_filter_t cairoFilterMode);
d116 2
a117 2
		void set_font_weight (cairo_font_weight_t cairoFontWeight);
		void set_font_slant (cairo_font_slant_t cairoFontSlant);
d122 1
a122 1
		std::string get_sample_name (Sample sample) const;
d131 54
a184 52
		HandlePoint get_center () const;
		HandlePoint get_point1 () const;
		HandlePoint get_point2 () const;
		HandlePoint get_point3 () const;
		HandlePoint get_point4 () const;
		double get_radius () const;
		double get_angle_1 () const;
		double get_angle_2 () const;
		void draw_background () const;
		void draw_background (Gdk::Color color) const;
		void draw_handle (double fX, double fY) const;
		void draw_handle (HandlePoint* pPoint) const;
		bool sample_not_found () const;
		bool curve_rectangle () const;
		bool fill_and_stroke () const;
		bool fill_and_stroke2 () const;
		bool fontmania () const;
		bool gradient () const;
		bool image () const;
		bool image_pattern () const;
		bool libsvg () const;
		bool moving_arc () const;
		bool moving_arc_negative () const;
		bool moving_cairo_logo () const;
		bool moving_clip () const;
		bool moving_clip_image () const;
		bool moving_curve_to () const;
		bool moving_gradient () const;
		bool moving_gradient2 () const;
		bool operator_add () const;
		bool operator_atop () const;
		bool operator_atop_reverse () const;
		bool operator_in () const;
		bool operator_in_reverse () const;
		bool operator_out () const;
		bool operator_out_reverse () const;
		bool operator_over () const;
		bool operator_over_reverse () const;
		bool operator_saturate () const;
		bool operator_xor () const;
		bool path () const;
		bool pattern_fill () const;
		bool set_line_cap () const;
		bool set_line_join () const;
		bool text_align_center () const;
		bool text () const;
		bool text_extents () const;
		bool xxx_clip_rectangle () const;
		bool xxx_dash () const;
		bool xxx_long_lines () const;
		bool xxx_multi_segment_caps () const;
		bool xxx_self_intersect () const;
d208 3
a210 3
		cairo_t*			m_pCairoContext;
		cairo_line_cap_t	m_cairoCapStyle;
		cairo_line_join_t	m_cairoJoinStyle;
d212 3
a214 3
		cairo_operator_t	m_cairoOperator;
		cairo_extend_t		m_cairoExtendMode;
		cairo_filter_t		m_cairoFilterMode;
d219 2
a220 2
		cairo_font_weight_t	m_cairoFontWeight;
		cairo_font_slant_t	m_cairoFontSlant;
d225 1
@