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Overview
Comment:Start to implement dependent pictures in the picture editor. (Currently, it just does nothing.)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: ffd9bad6555b39149194ddfc121311ae9788edc5
User & Date: user on 2021-04-12 03:43:36
Other Links: manifest | tags
Context
2021-04-12
23:18
Data structures for dependent images in picture editor check-in: 120405b3b4 user: user tags: trunk
03:43
Start to implement dependent pictures in the picture editor. (Currently, it just does nothing.) check-in: ffd9bad655 user: user tags: trunk
2021-04-11
17:12
Add another item into TODO list check-in: 52cb71156f user: user tags: trunk
Changes
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Modified picedit.c from [c6a6f01d28] to [9f00b04720].

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#include "quarks.h"
#include "cursorshapes.h"

typedef struct {
  Uint8 size,meth;
  Uint8 data[0]; // the first row is all 0, since the compression algorithm requires this
} Picture;

static Uint8 cur_type;

static void fn_valid_name(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  const char*s=sqlite3_value_text(*argv);
  if(!s || !*s || s[strspn(s,"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_-0123456789")]) {
    sqlite3_result_error(cxt,"Invalid name",-1);
    return;
  }
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    while(j=fgetc(fp)) {
      if(j==EOF) goto done;
      if(i<255) nam[i++]=j;
    }
    nam[i]=0;
    sqlite3_reset(st);
    sqlite3_bind_text(st,1,nam,i,SQLITE_TRANSIENT);
    sqlite3_bind_int(st,2,j=(i>4 && !memcmp(".IMG",nam+i-4,4)?1:0));
    sqlite3_bind_int(st,2,j=(i>4 && !memcmp(".IMG",nam+i-4,4)?1:!memcmp(".DEP",nam+i-4,4)?2:0));
    r+=j;
    i=fgetc(fp)<<16;
    i|=fgetc(fp)<<24;
    i|=fgetc(fp)<<0;
    i|=fgetc(fp)<<8;
    if(!i) continue;
    buf=realloc(buf,i);
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  if(st) sqlite3_finalize(st);
  if(fp) fclose(fp);
  free(nam);
  free(buf);
  fprintf(stderr,"Done\n");
  sqlite3_exec(userdb,
    "CREATE TRIGGER `PICEDIT_T1` BEFORE INSERT ON `PICEDIT` BEGIN"
    "  SELECT RAISE(FAIL,'Duplicate name') FROM `PICEDIT` WHERE `NAME`=NEW.`NAME`;"
    "  SELECT RAISE(FAIL,'Duplicate name') FROM `PICEDIT` WHERE REPLACE(`NAME`||'*','.IMG*','.DEP*')=REPLACE(NEW.`NAME`||'*','.IMG*','.DEP*');"
    "END;"
    "CREATE TRIGGER `PICEDIT_T2` BEFORE UPDATE OF `NAME` ON `PICEDIT` BEGIN"
    "  SELECT RAISE(FAIL,'Duplicate name') FROM `PICEDIT` WHERE `NAME`=NEW.`NAME`;"
    "  SELECT RAISE(FAIL,'Duplicate name') FROM `PICEDIT` WHERE REPLACE(`NAME`||'*','.IMG*','.DEP*')=REPLACE(NEW.`NAME`||'*','.IMG*','.DEP*');"
    "END;"
  ,0,0,0);
  return r;
}

static void save_picture_file(void) {
  sqlite3_stmt*st;
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static sqlite3_int64 ask_picture_id(const char*t) {
  sqlite3_stmt*st;
  const char*r=screen_prompt(t);
  int i;
  sqlite3_int64 id=0;
  if(!r || !*r) return 0;
  i=sqlite3_prepare_v2(userdb,"SELECT `ID` FROM `PICEDIT` WHERE `NAME` = (?1 || '.IMG');",-1,&st,0);
  i=sqlite3_prepare_v2(userdb,"SELECT `ID`, `TYPE` FROM `PICEDIT` WHERE `NAME` = (?1 || '.IMG') OR `NAME` = (?1 || '.DEP');",-1,&st,0);
  if(i) {
    screen_message(sqlite3_errmsg(userdb));
    return 0;
  }
  sqlite3_bind_text(st,1,r,-1,0);
  i=sqlite3_step(st);
  if(i==SQLITE_ROW) id=sqlite3_column_int64(st,0);
  if(i==SQLITE_DONE) screen_message("Picture not found");
  if(i==SQLITE_ROW) id=sqlite3_column_int64(st,0),cur_type=sqlite3_column_int(st,1);
  if(i==SQLITE_DONE) screen_message("Picture not found"),cur_type=0;
  sqlite3_finalize(st);
  return id;
}

static void uncompress_picture(FILE*fp,Picture*pic) {
  Uint8*p=pic->data+pic->size;
  int c,n,t,x,y;
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  }
  sqlite3_bind_int64(st,1,id);
  sqlite3_bind_blob(st,2,buf,size,free);
  i=sqlite3_step(st);
  if(i!=SQLITE_DONE) screen_message(sqlite3_errmsg(userdb));
  sqlite3_finalize(st);
}

static void edit_dependent_picture(sqlite3_int64 rowid) {
  
}

static int add_picture(int t) {
  sqlite3_stmt*st;
  const char*s=screen_prompt("Enter name of new picture:");
  int i;
  if(!s || !*s) return 0;
  if(sqlite3_prepare_v2(userdb,"INSERT INTO `PICEDIT`(`NAME`,`TYPE`,`DATA`) SELECT VALID_NAME(?1)||'.IMG',1,X'';",-1,&st,0)) {
  if(sqlite3_prepare_v2(userdb,"INSERT INTO `PICEDIT`(`NAME`,`TYPE`,`DATA`) SELECT VALID_NAME(?1)||CASE ?2 WHEN 1 THEN '.IMG' ELSE '.DEP' END,?2,X'';",-1,&st,0)) {
    screen_message(sqlite3_errmsg(userdb));
    return 0;
  }
  sqlite3_bind_text(st,1,s,-1,0);
  sqlite3_bind_int(st,2,t);
  i=sqlite3_step(st);
  sqlite3_finalize(st);
  if(i!=SQLITE_DONE) {
    screen_message(sqlite3_errmsg(userdb));
    return 0;
  }
  edit_picture(sqlite3_last_insert_rowid(userdb));
  if(t==1) edit_picture(sqlite3_last_insert_rowid(userdb));
  if(t==2) edit_dependent_picture(sqlite3_last_insert_rowid(userdb));
  return 1;
}

static int delete_picture(void) {
  sqlite3_stmt*st;
  const char*s=screen_prompt("Enter name of picture to delete:");
  int i;
  if(!s || !*s) return 0;
  if(sqlite3_prepare_v2(userdb,"DELETE FROM `PICEDIT` WHERE `NAME`=?1||'.IMG';",-1,&st,0)) {
  if(sqlite3_prepare_v2(userdb,"DELETE FROM `PICEDIT` WHERE `NAME`=?1||'.IMG' OR `NAME`=?1||'.DEP';",-1,&st,0)) {
    screen_message(sqlite3_errmsg(userdb));
    return 0;
  }
  sqlite3_bind_text(st,1,s,-1,0);
  i=sqlite3_step(st);
  sqlite3_finalize(st);
  if(i!=SQLITE_DONE) {
    screen_message(sqlite3_errmsg(userdb));
    return 0;
  }
  return 1;
}

static void rename_picture(void) {
  sqlite3_stmt*st;
  const char*s=screen_prompt("Old name:");
  int i;
  if(!s || !*s) return;
  if(sqlite3_prepare_v2(userdb,"UPDATE `PICEDIT` SET `NAME`=VALID_NAME(?2)||'.IMG' WHERE `NAME`=?1||'.IMG';",-1,&st,0)) {
  if(sqlite3_prepare_v2(userdb,"UPDATE `PICEDIT` SET `NAME`=VALID_NAME(?2)||SUBSTR(`NAME`,-4) WHERE `NAME`=?1||'.IMG' OR `NAME`=?1||'.DEP';",-1,&st,0)) {
    screen_message(sqlite3_errmsg(userdb));
    return;
  }
  sqlite3_bind_text(st,1,s,-1,SQLITE_TRANSIENT);
  s=screen_prompt("New name:");
  if(!s || !*s) {
    sqlite3_finalize(st);
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  if(sc>max-screen->h/8+1) sc=max-screen->h/8+1;
  if(sc<0) sc=0;
  sqlite3_bind_int(st,1,screen->h/8-1);
  sqlite3_bind_int(st,2,sc);
  SDL_LockSurface(screen);
  r.x=r.y=0; r.w=screen->w; r.h=screen->h;
  SDL_FillRect(screen,&r,0xF0);
  draw_text(0,0,"<ESC> Save/Quit  <F1> Add  <F2> Delete  <F3> Edit  <F4> Rename",0xF0,0xFB);
  draw_text(0,0,"<ESC> Save/Quit  <F1> Add  <F2> Delete  <F3> Edit  <F4> Rename  <F5> AddDependent",0xF0,0xFB);
  n=0;
  while((i=sqlite3_step(st))==SQLITE_ROW) {
    ids[n++]=sqlite3_column_int64(st,0);
    draw_text(16,8*n,sqlite3_column_text(st,1),0xF0,0xF7);
    draw_text(16,8*n,sqlite3_column_text(st,1),0xF0,sqlite3_column_int(st,2)==1?0xF7:0xF2);
    if(8*n+8>screen->h-8) break;
  }
  SDL_UnlockSurface(screen);
  sqlite3_reset(st);
  r.y=8; r.h-=8;
  scrollbar(&sc,r.h/8,max,0,&r);
  SDL_Flip(screen);
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            else screen_message("Too many pictures");
            goto redraw;
          case SDLK_F2:
            max-=delete_picture();
            goto redraw;
          case SDLK_F3:
            *ids=ask_picture_id("Edit:");
            if(*ids) edit_picture(*ids);
            if(*ids) {
              if(cur_type==1) edit_picture(*ids);
              else if(cur_type==2) edit_dependent_picture(*ids);
            }
            goto redraw;
          case SDLK_F4:
            rename_picture();
            goto redraw;
          case SDLK_F5:
            if(max<65535) max+=add_picture(2);
            else screen_message("Too many pictures");
            goto redraw;
        }
        break;
      case SDL_MOUSEMOTION:
        set_cursor(XC_arrow);
        break;
      case SDL_VIDEOEXPOSE:
        goto redraw;
    }
  }
}

Modified picedit.doc from [1293f34972] to [fdf1601d98].

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The F2 key deletes a picture by name.

The F3 key allows entering a name of a picture to edit.

The F4 key renames a picture.

The F5 key adds a dependent picture (see the below section).


=== Drawing ===

The following keyboard commands are available:

Esc
  Leave the drawing screen.
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  Click the left button on one corner of the bounding rectangle of the
  ellipse, and then click the middle or right button on the other side.

Filled ellipse (S)
  Click the left button on one corner of the bounding rectangle of the
  ellipse, and then click the middle or right button on the other side.


=== Dependent pictures ===

(Not implemented yet.)

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