info_draw.c

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/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2010 Blender Foundation.
 * All rights reserved.
 *
 * Contributor(s): Blender Foundation
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include <math.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <limits.h>

#include "BLF_api.h"

#include "BLI_blenlib.h"
#include "BLI_utildefines.h"

#include "DNA_space_types.h"
#include "DNA_screen_types.h"

// #include "BKE_suggestions.h"
#include "BKE_report.h"


#include "MEM_guardedalloc.h"

#include "BIF_gl.h"
#include "BIF_glutil.h"

#include "ED_datafiles.h"
#include "ED_types.h"

#include "UI_resources.h"

#include "info_intern.h"
#include "../space_info/textview.h"

/* complicates things a bit, so leaving in old simple code */
#define USE_INFO_NEWLINE

static void info_report_color(unsigned char *fg, unsigned char *bg, Report *report, int bool)
{
    if(report->flag & SELECT) {
        fg[0]=255; fg[1]=255; fg[2]=255;
        if(bool) {
            bg[0]=96; bg[1]=128; bg[2]=255;
        }
        else {
            bg[0]=90; bg[1]=122; bg[2]=249;
        }
    }
    else {
        fg[0]=0; fg[1]=0; fg[2]=0;
        
        if (report->type & RPT_ERROR_ALL) {
            if (bool) { bg[0]=220; bg[1]=0;   bg[2]=0;   }
            else      { bg[0]=214; bg[1]=0;   bg[2]=0;   }
        }
        else if (report->type & RPT_WARNING_ALL) {
            if (bool) { bg[0]=220; bg[1]=128; bg[2]=96;  }
            else      { bg[0]=214; bg[1]=122; bg[2]=90;  }
        }
#if 0 // XXX: this looks like the selected color, so don't use this
        else if (report->type & RPT_OPERATOR_ALL) {
            if (bool) { bg[0]=96;  bg[1]=128; bg[2]=255; }
            else      { bg[0]=90;  bg[1]=122; bg[2]=249; }
        }
#endif
        else if (report->type & RPT_INFO_ALL) {
            if (bool) { bg[0]=0;   bg[1]=170; bg[2]=0;   }
            else      { bg[0]=0;   bg[1]=164; bg[2]=0;   }
        }
        else if (report->type & RPT_DEBUG_ALL) {
            if (bool) { bg[0]=196; bg[1]=196; bg[2]=196; }
            else      { bg[0]=190; bg[1]=190; bg[2]=190; }
        }
        else {
            if (bool) { bg[0]=120; bg[1]=120; bg[2]=120; }
            else      { bg[0]=114; bg[1]=114; bg[2]=114; }
        }
    }
}

/* reports! */
#ifdef USE_INFO_NEWLINE
static void report_textview_init__internal(TextViewContext *tvc)
{
    Report *report= (Report *)tvc->iter;
    const char *str= report->message;
    const char *next_str= strchr(str + tvc->iter_char, '\n');

    if(next_str) {
        tvc->iter_char_next= (int)(next_str - str);
    }
    else {
        tvc->iter_char_next= report->len;
    }
}

static int report_textview_skip__internal(TextViewContext *tvc)
{
    SpaceInfo *sinfo= (SpaceInfo *)tvc->arg1;
    const int report_mask= info_report_mask(sinfo);
    while (tvc->iter && (((Report *)tvc->iter)->type & report_mask)==0) {
        tvc->iter= (void *)((Link *)tvc->iter)->prev;
    }
    return (tvc->iter != NULL);
}

#endif // USE_INFO_NEWLINE

static int report_textview_begin(TextViewContext *tvc)
{
    // SpaceConsole *sc= (SpaceConsole *)tvc->arg1;
    ReportList *reports= (ReportList *)tvc->arg2;

    tvc->lheight= 14; //sc->lheight;
    tvc->sel_start= 0;
    tvc->sel_end= 0;

    /* iterator */
    tvc->iter= reports->list.last;

    glClearColor(120.0/255.0, 120.0/255.0, 120.0/255.0, 1.0);
    glClear(GL_COLOR_BUFFER_BIT);

#ifdef USE_INFO_NEWLINE
    tvc->iter_tmp= 0;
    if(tvc->iter && report_textview_skip__internal(tvc)) {
        /* init the newline iterator */
        tvc->iter_char= 0;
        report_textview_init__internal(tvc);

        return TRUE;
    }
    else {
        return FALSE;
    }
#else
    return (tvc->iter != NULL);
#endif
}

static void report_textview_end(TextViewContext *UNUSED(tvc))
{
    /* pass */
}

#ifdef USE_INFO_NEWLINE
static int report_textview_step(TextViewContext *tvc)
{
    /* simple case, but no newline support */
    Report *report= (Report *)tvc->iter;

    if(report->len <= tvc->iter_char_next) {
        tvc->iter= (void *)((Link *)tvc->iter)->prev;
        if(tvc->iter && report_textview_skip__internal(tvc)) {
            tvc->iter_tmp++;

            tvc->iter_char= 0; /* reset start */
            report_textview_init__internal(tvc);

            return TRUE;
        }
        else {
            return FALSE;
        }
    }
    else {
        /* step to the next newline */
        tvc->iter_char= tvc->iter_char_next + 1;
        report_textview_init__internal(tvc);

        return TRUE;
    }
}

static int report_textview_line_get(struct TextViewContext *tvc, const char **line, int *len)
{
    Report *report= (Report *)tvc->iter;
    *line= report->message + tvc->iter_char;
    *len= tvc->iter_char_next - tvc->iter_char;
    return 1;
}

static int report_textview_line_color(struct TextViewContext *tvc, unsigned char fg[3], unsigned char bg[3])
{
    Report *report= (Report *)tvc->iter;
    info_report_color(fg, bg, report, tvc->iter_tmp % 2);
    return TVC_LINE_FG | TVC_LINE_BG;
}


#else // USE_INFO_NEWLINE

static int report_textview_step(TextViewContext *tvc)
{
    SpaceInfo *sinfo= (SpaceInfo *)tvc->arg1;
    const int report_mask= info_report_mask(sinfo);
    do {
        tvc->iter= (void *)((Link *)tvc->iter)->prev;
    } while (tvc->iter && (((Report *)tvc->iter)->type & report_mask)==0);

    return (tvc->iter != NULL);
}

static int report_textview_line_get(struct TextViewContext *tvc, const char **line, int *len)
{
    Report *report= (Report *)tvc->iter;
    *line= report->message;
    *len= report->len;

    return 1;
}

static int report_textview_line_color(struct TextViewContext *tvc, unsigned char fg[3], unsigned char bg[3])
{
    Report *report= (Report *)tvc->iter;
    info_report_color(fg, bg, report, tvc->iter_tmp % 2);
    return TVC_LINE_FG | TVC_LINE_BG;
}

#endif // USE_INFO_NEWLINE

#undef USE_INFO_NEWLINE

static int info_textview_main__internal(struct SpaceInfo *sinfo, struct ARegion *ar, ReportList *reports, int draw, int mval[2], void **mouse_pick, int *pos_pick)
{
    int ret= 0;
    
    View2D *v2d= &ar->v2d;

    TextViewContext tvc= {0};
    tvc.begin= report_textview_begin;
    tvc.end= report_textview_end;

    tvc.step= report_textview_step;
    tvc.line_get= report_textview_line_get;
    tvc.line_color= report_textview_line_color;

    tvc.arg1= sinfo;
    tvc.arg2= reports;

    /* view */
    tvc.sel_start= 0;
    tvc.sel_end= 0;
    tvc.lheight= 14; //sc->lheight;
    tvc.ymin= v2d->cur.ymin;
    tvc.ymax= v2d->cur.ymax;
    tvc.winx= ar->winx;

    ret= textview_draw(&tvc, draw, mval, mouse_pick, pos_pick);
    
    return ret;
}

void *info_text_pick(struct SpaceInfo *sinfo, struct ARegion *ar, ReportList *reports, int mouse_y)
{
    void *mouse_pick= NULL;
    int mval[2];

    mval[0]= 0;
    mval[1]= mouse_y;

    info_textview_main__internal(sinfo, ar, reports, 0, mval, &mouse_pick, NULL);
    return (void *)mouse_pick;
}


int info_textview_height(struct SpaceInfo *sinfo, struct ARegion *ar, ReportList *reports)
{
    int mval[2] = {INT_MAX, INT_MAX};
    return info_textview_main__internal(sinfo, ar, reports, 0,  mval, NULL, NULL);
}

void info_textview_main(struct SpaceInfo *sinfo, struct ARegion *ar, ReportList *reports)
{
    int mval[2] = {INT_MAX, INT_MAX};
    info_textview_main__internal(sinfo, ar, reports, 1,  mval, NULL, NULL);
}