interface.h

// mandelbrot-gtk - Multithreaded GTK Application for rendering the mandelbrot and julia-set
//
// Copyright (C) 2010-2020  Felix Neumärker
//
// 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 3 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, see <https://www.gnu.org/licenses/>.

#ifndef __INTERFACE_H__
#define __INTERFACE_H__

#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "defs.h"
#include "render.h"

struct winctl {
	/* widgets: */
	GtkWidget *win;
	GtkWidget *drawing;
	GtkWidget *lbldraw;
	GtkWidget *txtcplx[4];
	GtkWidget *txtdegree;
	GtkWidget *txtitermax;
	GtkWidget *chkjulia;
	GtkWidget *lbljre;
	GtkWidget *lbljim;
	GtkWidget *txtjre;
	GtkWidget *txtjim;
	GtkWidget *btnj;
	GtkWidget *btncalc;
	GtkWidget *btnreset;
	GtkWidget *btnclose;
	GtkWidget *drawmenu;
	GtkWidget *pjmenu;
	GtkWidget *mchkzoomprop;
	GtkWidget *pmchkzoomprop;
	GtkWidget **mcolalgo;
	GdkPixbuf *pixbufcalc;
	GdkPixbuf *pixbufshow;
	GdkPixbuf *pixbufdraw;
	IterationInfo *itermap;
	/* render thread */
	struct render_thread *render_thread;
	struct iterate_param it_param;
	/* zooming: */
	gint focus_x;
	gint focus_y;
	GdkRGBA focus_color;
	GdkRectangle focus_area;
    gboolean focus_draw;
	gdouble zoomfactor;
	gboolean zoomprop;
	gint get_jitermax;
	/* config: */
	gchar *configfile;
	double default_cplxplane[4];
	double default_mcplxplane[4];
	/* misc: */
	gboolean get_j;
	gboolean succ_render;
	gboolean redraw;
	/* color: */
	GdkRGBA convcol;
	GdkRGBA divcol;
	/* Timer:  */
	GTimer *timer;
};

enum zoom_mode { ZOOM_IN, ZOOM_OUT };

/* implemented by layout.c: */
GtkWidget *createcplxplane(GtkWidget *txtcplx[4]);
struct winctl *buildinterface(void);
void setcplxplane(GtkWidget *txtcplx[4], const gdouble value[4], gint width, gint height);
void restoredefaults(struct winctl *w);
void statejctl(struct winctl *w);

/* implemented by interface.c: */
void run_interface(gchar *file_name);
void calc(GtkWidget *widget, struct winctl *w);
void reset(GtkWidget *widget, struct winctl *w);
void update_pixbuf(gint x, gint y, const IterationInfo *iterinfo,  const struct iterate_param *it_param);
void redraw_pixbuf(struct winctl *w);
void zoom(struct winctl *w, enum zoom_mode mode);

/* implemented by storedrawing.c */
void store_drawing_show(struct winctl *w);

/* implemented by validate.c */
gboolean validate_cplx(GtkWidget *txtcplx[4], gdouble cplx[4], GtkWidget *win);
gboolean validate_itermax(GtkWidget *txtitermax, gint *itermax, GtkWidget *win);
gboolean validate_degree(GtkWidget *txtdegree, gdouble *degree, GtkWidget *win);
void errdialog(GtkWindow *win, gchar *msg);

/* implemented by config.c */
enum configtype { LOAD_CONFIG, STORE_CONFIG, LOAD_RENDER_CONFIG };
gboolean configure_interface(struct winctl *w, const gchar *configfile, enum configtype type);
void save_rendersettings_xml(const gchar *filename, struct winctl *w);

/* implemented by pref.c */
void preference_show(struct winctl *w);

#endif /* __INTERFACE_H__ */