mbsysc/MBsysC/plot__sdl_8h_source.html

#ifdef SDL


#ifndef _PLOT_SDL_H_INCLUDED_

#define _PLOT_SDL_H_INCLUDED_


#include "SDL.h"

#undef main

#include "SDL_ttf.h"

#include "SDL_opengl.h"


#include "realtime.h"

#include "auto_plot.h"

#include "color_sdl.h"


#include "mbs_data.h"

//#include "user_realtime.h"


// y axis: main parts

#define SCREEN_UP_HEIGHT_LOSS 40

#define SCREEN_BOTTOM_HEIGHT_LOSS 40

#define PLOT_Y_START SCREEN_UP_HEIGHT_LOSS


// x axis: main parts

#define SCREEN_WIDTH_LOSS 60

#define PLOT_X_START 0

#define X_ERASE_WIDTH SCREEN_WIDTH_LOSS


// up indications

#define UP_FIRST_Y_INDICATIONS (SCREEN_UP_HEIGHT_LOSS / 3)

#define UP_SECOND_Y_INDICATIONS (UP_FIRST_Y_INDICATIONS + ((3*SCREEN_UP_HEIGHT_LOSS) / 8))

#define UP_SEPARATION_INDICATION ((UP_FIRST_Y_INDICATIONS + UP_SECOND_Y_INDICATIONS) / 2)

#define UP_COLOR_WIDTH_LABEL 15

#define UP_COLOR_SPACE_LABEL 5

#define UP_COLOR_WIDTH_LOSS_BEGIN (UP_COLOR_SPACE_LABEL + UP_COLOR_SPACE_LABEL + 40)

#define UP_COLOR_WIDTH_LOSS_END 20


// bottom indications: x axis

#define LEGEND_SIGNAL_SCALING_X_POS 10

#define SIGNAL_SCALING_X_POS 22

#define LEGEND_PLOT_SCALING_X_POS 45

#define PLOT_SCALING_X_POS 57

#define LEGEND_PLOT_MOVE_X_POS_1 93

#define LEGEND_PLOT_MOVE_X_POS_1_BIS 110

#define LEGEND_PLOT_MOVE_X_POS_2 118

#define PLOT_MOVE_X_POS_1 105

#define PLOT_MOVE_X_POS_2 130

#define LEGEND_SWITCH_HOR_VERT_X_POS 138

#define SWITCH_HOR_VERT_X_POS 165

#define LEGEND_XY_LABEL_X_POS 210

#define XY_LABEL_X_POS 250

#define LEGEND_TIME_SPEED_X_POS 385

#define TIME_SPEED_X_POS 425

#define VISU_PAST_X_POS_1 535

#define VISU_PAST_X_POS_2 550

#define VISU_PAST_X_POS_3 557

#define LEGEND_SPEED_X_POS 580

#define SPEED_X_POS 592

#define LEGEND_QUIT_X_POS 620

#define QUIT_X_POS 632


// font sizes

#define FONT_AXIS_SIZE 12

#define FONT_LABEL_SIZE 12

#define FONT_SMALL_LABEL_SIZE 10

#define FONT_SCALING 25

#define FONT_ARROWS 15

#define FONT_PLAY_BREAK 14

#define FONT_HOR_MOUSE 25

#define FONT_MOUSE 45

#define FONT_SPEED 25


// x labels

#define X_LABEL_NB 10

#define X_LABEL_HEIGHT 10

#define X_LABEL_SHIFT_X 2

#define X_LABEL_SHIFT_Y 0


// y labels

#define Y_LABEL_NB 10

#define Y_LABEL_WIDTH 10

#define Y_LABEL_SHIFT_X 3

#define Y_LABEL_SHIFT_Y 2

#define Y_LABEL_SHIFT_Y_START (Y_LABEL_SHIFT_Y + 9)

#define Y_LABEL_SHIFT_Y_END (Y_LABEL_SHIFT_Y - 10)


#define STR_LABEL_MIN 1.0e-9


// scaling

#define PLOT_SCALE_MAX 4.0

#define SCALING_MULT_THRESHOLD 4.0

#define SCALING_PLOT_TOO_SMALL 0.0

#define SCALING_PLOT_TOO_HIGH 0.4

#define SCALING_PLOT_OPTIMAL_INCREASE 0.25

#define SCALING_PLOT_OPTIMAL_DECREASE 0.15

#define SCALING_NUL_DIFF 4.0

#define MANUAL_SCALING_PLOT 0.5

#define MANUAL_OFFSET_PLOT 0.25


// other

#define NUL_AXIS_DASH_WIDTH 8

#define X_AXIS_NB_Y_PIXELS_WIDTH 2

#define START_VECTOR 12345


// mouse

#define WHEEL_MOUSE_FACTOR 0.9 // [-]

#define FQC_MOUSE 30.0  // frequence of the SDL window refresh when using the mouse for translations [Hz]

#define TIME_RELEASE_MOUSE_PLOT (1e6 / FQC_MOUSE)  // [us]


#define TIME_MOUSE_DELAY 5e4


// -- Structures -- //


typedef struct Screen_sdl

{

    // SDL pointers

    SDL_Window   *win;

    SDL_Renderer *ren;


    // fonts pointers

    TTF_Font     *font_label;

    TTF_Font     *font_small_label;

    TTF_Font     *font_axis;

    TTF_Font     *font_scaling;

    TTF_Font     *font_arrows;

    TTF_Font     *font_play;

    TTF_Font     *font_hor_mouse;

    TTF_Font     *font_mouse;

    TTF_Font     *font_break;

    TTF_Font     *font_speed;


    // colors

    SDL_Color text_color;


    int color_tab[NB_COLORS_SDL];


    // other variables


    int break_plot_flag;

    int plot_auto_scaling;

    int signal_auto_scaling;

    int last_plot_auto_scaling;

    int last_signal_auto_scaling;

    int hor_plot_scaling;

    int index_vec;

    int index_sdl;

    int last_x_label_flag;

    int expo_y;

    int expo_x;

    int increase_plot_y_diff_flag;

    int decrease_plot_y_diff_flag;

    int up_plot_y_flag;

    int bottom_plot_y_flag;

    int increase_plot_x_diff_flag;

    int decrease_plot_x_diff_flag;

    int left_plot_y_flag;

    int right_plot_y_flag;

    int bottom_flag;

    int scaling_flag;

    int last_scaling_flag;

    int last_color;

    int x_label_print_count;

    int change_mouse_wheel_flag;

    int buffer_size;

    int min_tsim_index;

    int max_tsim_index;

    int flag_buffer_round;

    int flag_started;

    int max_nb_curves;

    int cur_nb_curves;

    int max_nb_legends;

    int nb_legends;


    double tsim_pixel;

    double y_min, y_max;

    double x_min, x_max;

    double last_y_min, last_y_max;

    double last_legend_y_min, last_legend_y_max;

    double last_legend_x_min, last_legend_x_max;

    double min_tsim;

    double max_tsim;


    // pixel size related

    int curve_width;

    int screen_width;

    int screen_height;


    // screen width related

    int plot_x_end;

    int screen_plot_width;

    int x_label_width;


    // screen height related

    int plot_y_end;

    int plot_y_mid;

    int screen_plot_height;

    int y_label_height;


    // bottom indications: y axis

    int bottom_mid_y_indications;

    int scaling_indications;

    int x_axis_indication;

    int y_axis_indication;

    int speed_indication_1;

    int speed_indication_2;

    int legend_speed_indication_1;

    int legend_speed_indication_2;

    int scaling_bottom_indications;

    int scaling_bottom_arrow_indications_1;

    int scaling_bottom_arrow_indications_2;

    int scaling_bottom_arrow_indications_3;

    int scaling_up_indications;

    int scaling_up_indications_2;


    int *scaling_expo_mult;

    int *last_scaling_expo_mult;

    int *pixel_pos_label;


    double *t_vec;

    double *y_tab_min;

    double *y_tab_max;

    double *previous_y_vec;

    double *scaling_offset;

    double *last_scaling_offset;


    double **y_tab;


    double *tsim_save;

    double **y_save;


    AutoPlot *auto_plot;


    // joysticks

    int nb_joysticks;

    SDL_Joystick **joysticks;


} Screen_sdl;


// -- Functions prototypes -- //


void wait_key_generic(Simu_realtime *realtime, int cur_t_usec, double tsim);


Screen_sdl* init_screen_sdl(Realtime_option *options, int *err);

void new_curves_save(Screen_sdl *screen_sdl, int nb_new_curves, double *y_curves);

TTF_Font* init_font(char *folder, int font_size, int *err);

void free_screen_sdl(Screen_sdl *screen_sdl);


int log_SDL_error(char *SDL_function);

void SDL_set_color(Screen_sdl *screen_sdl, int color_num);

int refresh_screen(Screen_sdl *screen_sdl);

void draw_pixel(SDL_Renderer *ren, int i, int j);

void draw_rectangle(SDL_Renderer *ren, int x1, int x2, int y1, int y2);

void draw_horizontal_line(SDL_Renderer *ren, int x1, int x2, int y);

void draw_vertical_line(SDL_Renderer *ren, int x, int y1, int y2);

void print_text_sdl(char *str, TTF_Font *font, SDL_Color txt_col, SDL_Renderer *ren, int x, int y, int pos_flag);

void renderTexture(SDL_Texture *tex, SDL_Renderer *ren, int x, int y, int pos_flag);

SDL_Texture* renderText(TTF_Font *font, char *message, SDL_Color text_color, SDL_Renderer *ren);


void update_plot_vectors(Simu_realtime *realtime, double t);

void update_scale_signals(Screen_sdl *screen_sdl, Simu_realtime *realtime, int screen_flag);

void update_full_vectors(Simu_realtime *realtime, double tsim);

void update_x_min_max(Screen_sdl *screen_sdl, Simu_realtime *realtime);

void update_y_min_max(Simu_realtime *realtime);

void update_y_tab(Screen_sdl *screen_sdl);

void update_sdl_legend(Simu_realtime *realtime, int new_nb_legends);

double bound_diff_min_max(double min_thres, double max_thres, double cur_min, double cur_max, double cur_move, int sign_flag);

void mouse_sdl(Screen_sdl *screen_sdl, Simu_realtime *realtime, double tsim, int mouse_flag);

void set_bottom_flag(Simu_realtime *realtime);


void str_scaling(char *str, int scaling_expo_mult, double scaling_offset);

int str_label(char *str, double low_nb, double high_nb);

void str_axis(char *str, double nb, int expo);


void limit_x_limits(Screen_sdl *screen_sdl);

double scale_signal(double no_scale_nb, int scaling_expo_mult, double scaling_offset);

double unscale_signal(double scale_nb, int scaling_expo_mult, double scaling_offset);


void plot_screen_sdl(Simu_realtime *realtime, double tsim, int screen_flag);


int break_gestion(Simu_realtime *realtime, double tsim);

int events_simu(Simu_realtime *realtime, double tsim);

int last_break_gestion(Simu_realtime *realtime, double tsim);


#endif

#endif