config.hpp

一个3D桌面的实现源码

//  ----------------------------------------------------------
//
//  Copyright (C) 2002 Brad Wasson <[e-mail]>
//
//  This file is part of 3ddesktop.
//
//  3ddesktop 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, or (at your option)
//  any later version.
//
//  3ddesktop 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 3ddesktop; see the file COPYING.   If not, write to
//  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
//

#ifndef _CONFIG_HPP
#define _CONFIG_HPP

#include <stdio.h>
#include <stdlib.h>

#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>  // for mkdir

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <dirent.h>  // for PATH_MAX?
#include <getopt.h>

#include "3ddesk.h"
//#include "arrange.hpp"

// STL
using namespace std;
#include <list>


static void 
usage_and_bye (void)
{
    msgout(INFO, 
           "usage: 3ddeskd [ OPTIONS ]\n\n"
           "  where:\n"
           "    --acquire[=#]    Grab images for all the desktops by cycling thru\n"
           "                       (sleep for # millisecs at each screen for refresh)\n"
           "    --dir=/path      the install dir if different than /usr/share/3ddesktop\n"
           "    --texturesize=#  size of textures (larger for more detail) in powers of 2\n" 
           "    --wm=            Specify the Windowmanager type so all the virtual \n"
           "                     desktops are found correctly.  Available options are:\n"
           "                       kde2, kde3, gnome1, gnome2, ewmh, fluxbox, windowmaker,\n"
           "                       enlightenment, sawfishonly, workspaces\n"
           "    --fastest        hog the CPU for smoothest operation\n"
           "    -v               verbose/debug information\n\n");
    exit (1);
} // END usage_and_bye



// options by command line or config file 
class Options {
public:
    char name[50];

    // bits/bools on/off
    int acquire : 1;
    int show_fps : 1;
    int show_digits : 1;
    int do_fullscreen : 1;
    int entry_exit_movement : 1;
    int use_context_switch : 1;
    int use_breathing : 1;
    int daemonized : 1;
    int use_wireframe : 1;

    int __early_desktop_switch : 1;
    int __disable_keys_in_goto : 1;

    int __verbose : 1;
    int __texture_size;

    int __use_kde : 1;
    int __use_ewmh : 1;
    int __sawfish_only : 1;
    int __use_workspaces : 1;
    int __use_viewareas : 1;

#if defined(__FreeBSD__)
    char base_dir[MAXNAMLEN + 1];
#else
    char base_dir[PATH_MAX];
#endif

    int random_fun_delay;    // 15

    float animation_speed;  // ms between animations

    // steps between face changes (40 * 10ms animation step = 400ms to
    // change faces)
    float face_change_steps;
    float zoom_steps;

    FaceType_t face_type;

    float default_z_offset_distance;

    int goto_column;
    int goto_row;

    float digit_size;
    int digit_color;

    int frame_color;

    float linear_spacing;

    int recalc;  // set if arrangement needs to be recalculated


    // ---------
    //Arrangement *arrangement;

    Options(char *n = NULL) {

	if (n)
	    strncpy(name, n, sizeof(name));


        // defaults
        __verbose = 0;
        __texture_size = 1024;

	__use_kde = 0;
	__use_ewmh = 0;
        __sawfish_only = 0;
        __use_workspaces = 0;
        __use_viewareas = 0;
        __early_desktop_switch = 1;
        __disable_keys_in_goto = 1;

        acquire = 0;
        show_fps = 0;
        show_digits = 1;
        do_fullscreen = 1;
        entry_exit_movement = 1;
        use_context_switch = 1;
        use_breathing = 1;
        random_fun_delay = 15;
        face_type = FACE_TYPE_CAROUSEL;
        default_z_offset_distance = 0;
        daemonized = 0;
        goto_column = NO_GOTO;
        goto_row = NO_GOTO;

        strcpy(base_dir, SHAREDIR);

        digit_size = 50;
        digit_color = COLOR_RED;

        frame_color = COLOR_GRAY;
        use_wireframe = true;

        linear_spacing = 2.0;

        recalc = 1;

        animation_speed = 10;

        face_change_steps = 40;
        zoom_steps = 45;

	// ----
        //arrangement = NULL;

    };

    void set_color (int *v, char *color) {
        if (strcmp(color, "red") == 0) {
            *v = COLOR_RED;
        } else if (strcmp(color, "green") == 0) {
            *v = COLOR_GREEN;
        } else if (strcmp(color, "blue") == 0) {
            *v = COLOR_BLUE;
        } else if (strcmp(color, "lightblue") == 0) {
            *v = COLOR_LIGHTBLUE;
        } else if (strcmp(color, "white") == 0) {
            *v = COLOR_WHITE;
        } else if (strcmp(color, "gray") == 0) {
            *v = COLOR_GRAY;
        } else if (strcmp(color, "purple") == 0) {
            *v = COLOR_PURPLE;
        } else if (strcmp(color, "yellow") == 0) {
            *v = COLOR_YELLOW;
        } else {
            msgout (DEBUG, "conf file: invalid color '%s' (red,green,blue,yellow,white,purple,orange)\n", color);
            //*v = COLOR_WHITE;
        }

    }
    
    
    int get_boolean (char *value) {
        if (!value) return 0;

        if (!strcmp(value, "0") ||
            !strcmp(value, "false") ||
            !strcmp(value, "no") ||
            !strcmp(value, "off")) 
            return 0;
        
        if (!strcmp(value, "1") ||
            !strcmp(value, "true") ||
            !strcmp(value, "yes") ||
            !strcmp(value, "on")) 
            return 1;

        return 0;  // default false (?)
    }

    int set_option (char *option, char *value, bool from_cmdline) {
        int tmpint;
        float tmpfloat;

	if (!option)
	    return 1;

	if (strcmp(option, "mode") == 0) {

	    if (strcmp(value, "cylinder") == 0) {
		face_type = FACE_TYPE_CYLINDER;
	    } else if (strcmp(value, "linear") == 0) {
		face_type = FACE_TYPE_LINEAR;
	    } else if (strcmp(value, "viewmaster") == 0) {
		face_type = FACE_TYPE_VIEWMASTER;
	    } else if (strcmp(value, "carousel") == 0) {
		face_type = FACE_TYPE_CAROUSEL;
	    } else if (strcmp(value, "priceisright") == 0) {
		face_type = FACE_TYPE_PRICEISRIGHT;
	    } else if (strcmp(value, "flip") == 0) {
		face_type = FACE_TYPE_FLIP;
	    } else if (strcmp(value, "random") == 0) {
		face_type = FACE_TYPE_RANDOM;
	    } else {
		return 1;
	    }

	} else if (strcmp(option, "zoomspeed") == 0) {
            float tmp = atof(value);
            if (tmp >= 1.0 && tmp <= 300.0) {
                zoom_steps = tmp;
            }

	} else if (strcmp(option, "changespeed") == 0) {
            float tmp = atof(value);
            if (tmp >= 1.0 && tmp <= 300.0) {
                face_change_steps = tmp;
            }

	} else if (strcmp(option, "animation_speed") == 0) {
            float tmp = atof(value);
            if (tmp >= 1.0 && tmp <= 100.0) {
                animation_speed = tmp;
            }

	} else if (strcmp(option, "linear_spacing") == 0) {
            float tmp = atof(value);
            if (tmp >= 0.0 && tmp <= 20) {
                linear_spacing = tmp;
                recalc = 1;
            }
	} else if (strcmp(option, "use_breathing") == 0) {
            use_breathing = get_boolean (value);

	} else if (strcmp(option, "digit_size") == 0) {
	    digit_size = atoi(value);

	} else if (strcmp(option, "digit_color") == 0) {
            set_color (&digit_color, value);

	} else if (strcmp(option, "frame_color") == 0) {
            set_color (&frame_color, value);

	} else if (strcmp(option, "use_wireframe") == 0) {
            use_wireframe = get_boolean (value);

	} else if (strcmp(option, "fps") == 0) {
	    show_fps = get_boolean (value);

	} else if (strcmp(option, "show_digit") == 0) {
	    show_digits = get_boolean (value);;

	} else if (strcmp(option, "dir") == 0) {
	    strncpy(base_dir, value, sizeof(base_dir));

	} else if (strcmp(option, "randdelay") == 0) {
	    tmpint = atoi (value);
	    if (0 <= tmpint && tmpint < 60)
		random_fun_delay = tmpint;

	} else if (strcmp(option, "workspaces") == 0) {
            __use_workspaces = from_cmdline ? 1 : get_boolean (value);

	} else if (strcmp(option, "texturesize") == 0) {
	    __texture_size = atoi (value);

	    switch (__texture_size) {
	    case  16: case  32: case   64: case  128:
	    case 256: case 512: case 1024: case 2048:
		break;
	    default:
		// I now use gluBuild2DMipmaps so this isn't
		// really necessary because it converts it however
		// it is sooooo slow.  To use glTexImage2D it is
		// necessary.
		msgout (ERROR, "Texture size must be a power of 2 (such as 256, 512, 1024 ...)\n");
		end_program(-1);  // should I ignore this error?
		break;
	    }

	} else if (strcmp(option, "fastest") == 0) {
	    use_context_switch = get_boolean (value);

	} else if (strcmp(option, "depth") == 0) {
	    tmpfloat = (float)atof(value);
	    if (3.5 <= tmpfloat && tmpfloat < 40.0)
		default_z_offset_distance = tmpfloat;

	} else if (strcmp(option, "win") == 0) {
	    do_fullscreen = from_cmdline ? 0 : get_boolean (value);

	} else if (strcmp(option, "sawfish") == 0) {
	    __sawfish_only = from_cmdline ? 1 : get_boolean (value);

        } else if (strcmp(option, "kde") == 0) {
            __use_kde = from_cmdline ? 1 : get_boolean (value);

        } else if (strcmp(option, "kde2") == 0) {
            __use_kde = from_cmdline ? 1 : get_boolean (value);

        } else if (strcmp(option, "kde3") == 0) {
            __use_ewmh = from_cmdline ? 1 : get_boolean (value);

        } else if (strcmp(option, "gnome") == 0) {
            // "gnome off" will actaully enable in .conf ... but oh well
            __use_ewmh = 0;
            __use_workspaces = 1;

        } else if (strcmp(option, "gnome1") == 0) {
            __use_ewmh = 0;
            __use_workspaces = 1;

        } else if (strcmp(option, "gnome2") == 0) {
            __use_ewmh = from_cmdline ? 1 : get_boolean (value);

        } else if (strcmp(option, "ewmh") == 0) {
            __use_ewmh = from_cmdline ? 1 : get_boolean (value);

	} else if (strcmp(option, "acquire") == 0) {
	    acquire = 1;
	    if (value) {
		tmpint = atoi (value);
		// must be between 10ms and 3sec for now
		if (10 < tmpint && tmpint < 3000)
		    acquire = tmpint;
	    }

	} else if (strcmp(option, "wm") == 0) {
	    if (!value)
		return 1;

	    if (strcmp (value, "sawfishonly") == 0) {
		__sawfish_only = 1;
	    } else if (strcmp (value, "kde") == 0 ||
                       strcmp (value, "kde2") == 0) {
		__use_kde = 1;
		__use_ewmh = 0;
	    } else if (strcmp (value, "kde3") == 0) {
		__use_ewmh = 1;
	    } else if (strcmp (value, "gnome") == 0 ||
                       strcmp (value, "gnome1") == 0 ||
                       strcmp (value, "enlightenment") == 0) {
                __use_viewareas = 1;
		__use_workspaces = 1;
		__use_ewmh = 0;
	    } else if (strcmp (value, "gnome2") == 0 ||
                       strcmp (value, "ewmh") == 0) {
		__use_ewmh = 1;
	    } else if (strcmp (value, "gnomeworkspaces") == 0 ||