This is a complete rewrite of the "X Color Browser" demo program
(colbrowser.cxx) without dependencies on (X)Forms compatibility methods. The previous version can still be retrieved from svn (up to -r 6605) and from the FLTK 1.1 branch. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6606 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Albrecht Schlosser
parent
d34cc411e0
commit
1cfa95ae79
@ -1,12 +1,7 @@
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//
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// "$Id$"
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//
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// Forms test program for the Fast Light Tool Kit (FLTK).
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//
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// This is an XForms program from the 0.86 distribution of XForms.
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// It has been modified as little as possible to work under fltk by
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// using fltk's Forms emulation. Search for "fltk" to find all the
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// changes
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// X Color Browser demo program for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2008 by Bill Spitzak and others.
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//
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@ -30,16 +25,35 @@
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// http://www.fltk.org/str.php
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//
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#include <FL/forms.H> // changed for fltk
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#include <FL/Fl.H>
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#include <FL/Fl_Double_Window.H>
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#include <FL/Fl_Button.H>
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#include <FL/Fl_Value_Slider.H>
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#include <FL/Fl_Hold_Browser.H>
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#include <FL/Fl_Box.H>
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#include <FL/fl_ask.h>
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#include <FL/filename.H>
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#include <stdlib.h>
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#include <stdio.h> // added for fltk
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#include <string.h> // added for fltk
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#include <stdio.h>
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#include <string.h>
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// some constants
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#define MAX_RGB 3000
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static FL_FORM *cl;
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static Fl_Widget *rescol, *dbobj, *colbr, *rs, *gs, *bs;
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char dbname[FL_PATH_MAX];
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#define FL_FREE_COL4 ((Fl_Color)(FL_FREE_COLOR+3))
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#define FL_INDIANRED ((Fl_Color)(164))
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static Fl_Double_Window *cl;
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static Fl_Box *rescol;
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static Fl_Button *dbobj;
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static Fl_Hold_Browser *colbr;
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static Fl_Value_Slider *rs, *gs, *bs;
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static char dbname[FL_PATH_MAX];
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static void create_form_cl(void);
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static int load_browser(char *);
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@ -50,10 +64,8 @@ static RGBdb rgbdb[MAX_RGB];
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int
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main(int argc, char *argv[])
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{
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fl_initialize(&argc, argv, "FormDemo", 0, 0);
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create_form_cl();
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#ifdef USING_XCODE
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strcpy(dbname, "../../../../test/rgb.txt");
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#else
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@ -61,47 +73,38 @@ main(int argc, char *argv[])
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#endif
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if (load_browser(dbname))
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fl_set_object_label(dbobj, dbname);
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dbobj->label(dbname);
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else
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fl_set_object_label(dbobj, "None");
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dbobj->label("None");
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dbobj->redraw();
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// fl_set_form_minsize(cl, cl->w , cl->h); // removed for fltk
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// fl_set_form_maxsize(cl, 2*cl->w , 2*cl->h); // removed for fltk
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cl->size_range(cl->w(),cl->h(),2*cl->w(),2*cl->h()); // added for fltk
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// border changed from FL_TRANSIENT for fltk:
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// This is so Esc & the close box will close the window.
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// (on transient windows attempting to close it just calls the callback)
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fl_show_form(cl, FL_PLACE_FREE, 1/*FL_TRANSIENT*/, "RGB Browser");
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cl->size_range(cl->w(),cl->h(),2*cl->w(),2*cl->h());
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while (fl_do_forms())
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;
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return 0;
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cl->label("RGB Browser");
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cl->free_position();
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cl->show(argc,argv);
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return Fl::run();
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}
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static void
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set_entry(int i)
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{
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RGBdb *db = rgbdb + i;
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fl_freeze_form(cl);
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// unclear why demo is doing this. This messes up FL:
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// fl_mapcolor(FL_FREE_COL4+i, db->r, db->g, db->b);
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fl_mapcolor(FL_FREE_COL4, db->r, db->g, db->b);
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fl_set_slider_value(rs, db->r);
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fl_set_slider_value(gs, db->g);
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fl_set_slider_value(bs, db->b);
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fl_redraw_object(rescol);
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fl_unfreeze_form(cl);
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Fl::set_color(FL_FREE_COL4, db->r, db->g, db->b);
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rs->value(db->r);
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gs->value(db->g);
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bs->value(db->b);
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rescol->redraw();
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}
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static void
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br_cb(Fl_Widget * ob, long)
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br_cb(Fl_Widget *ob, long)
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{
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int r = fl_get_browser(ob);
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int r = ((Fl_Browser *)ob)->value();
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if (r <= 0)
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return;
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return;
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set_entry(r - 1);
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}
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@ -148,14 +151,12 @@ load_browser(char *fname)
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if (!(fp = fopen(fname, "r")))
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#endif
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{
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fl_show_alert("Load", fname, "Can't open", 0);
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fl_alert("%s\n%s\n%s","Load", fname, "Can't open");
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return 0;
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}
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/* read the items */
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fl_freeze_form(cl);
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for (; db < dbs && read_entry(fp, &r, &g, &b, name);)
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{
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db->r = r;
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@ -170,7 +171,7 @@ load_browser(char *fname)
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lg = g;
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lb = b;
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sprintf(buf, "(%3d %3d %3d) %s", r, g, b, name);
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fl_addto_browser(colbr, buf);
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colbr->add(buf);
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}
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}
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fclose(fp);
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@ -183,10 +184,10 @@ load_browser(char *fname)
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db->r = 1000;
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}
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fl_set_browser_topline(colbr, 1);
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fl_select_browser_line(colbr, 1);
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colbr->topline(1);
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colbr->select(1,1);
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set_entry(0);
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fl_unfreeze_form(cl);
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return 1;
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}
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@ -228,28 +229,28 @@ static void
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search_rgb(Fl_Widget *, long)
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{
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int r, g, b, i;
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int top = fl_get_browser_topline(colbr);
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int top = colbr->topline();
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r = int(fl_get_slider_value(rs));
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g = int(fl_get_slider_value(gs));
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b = int(fl_get_slider_value(bs));
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r = int(rs->value());
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g = int(gs->value());
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b = int(bs->value());
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fl_freeze_form(cl);
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fl_mapcolor(FL_FREE_COL4, r, g, b);
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fl_redraw_object(rescol);
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// fl_freeze_form(cl);
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Fl::set_color(FL_FREE_COL4, r, g, b);
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rescol->redraw();
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i = search_entry(r, g, b);
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/* change topline only if necessary */
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if(i < top || i > (top+15))
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fl_set_browser_topline(colbr, i-8);
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fl_select_browser_line(colbr, i + 1);
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fl_unfreeze_form(cl);
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colbr->topline(i-8);
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colbr->select(i+1, 1);
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// fl_unfreeze_form(cl);
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}
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/* change database */
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static void
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db_cb(Fl_Widget * ob, long)
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{
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const char *p = fl_show_input("Enter New Database Name", dbname);
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const char *p = fl_input("Enter New Database Name", dbname);
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char buf[512];
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if (!p || strcmp(p, dbname) == 0)
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@ -259,7 +260,7 @@ db_cb(Fl_Widget * ob, long)
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if (load_browser(buf))
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strcpy(dbname, buf);
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else
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fl_set_object_label(ob, dbname);
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ob->label(dbname);
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}
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static void
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@ -271,62 +272,65 @@ done_cb(Fl_Widget *, long)
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static void
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create_form_cl(void)
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{
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Fl_Widget *obj;
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if (cl)
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return;
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cl = fl_bgn_form(FL_NO_BOX, 330, 385);
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obj = fl_add_box(FL_UP_BOX, 0, 0, 330, 385, "");
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fl_set_object_color(obj, FL_INDIANRED, FL_COL1);
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cl = new Fl_Double_Window(400,385);
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cl->box(FL_UP_BOX);
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cl->color(FL_INDIANRED, FL_GRAY);
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obj = fl_add_box(FL_NO_BOX, 40, 10, 250, 30, "Color Browser");
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fl_set_object_lcol(obj, FL_RED);
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fl_set_object_lsize(obj, FL_HUGE_SIZE);
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fl_set_object_lstyle(obj, FL_BOLD_STYLE + FL_SHADOW_STYLE);
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Fl_Box *title = new Fl_Box(40, 10, 300, 30, "Color Browser");
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title->box(FL_NO_BOX);
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title->labelcolor(FL_RED);
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title->labelsize(32);
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title->labelfont(FL_HELVETICA_BOLD);
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title->labeltype(FL_SHADOW_LABEL);
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dbobj = obj = fl_add_button(FL_NORMAL_BUTTON, 40, 50, 250, 25, "");
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fl_set_object_boxtype(obj, FL_BORDER_BOX);
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fl_set_object_color(obj, /*fl_get_visual_depth()==1 ? FL_WHITE:*/ FL_INDIANRED,
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FL_INDIANRED);
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fl_set_object_callback(obj, db_cb, 0);
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rs = obj = fl_add_valslider(FL_VERT_FILL_SLIDER, 225, 130, 30, 200, "");
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fl_set_object_color(obj, FL_INDIANRED, FL_RED);
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fl_set_slider_bounds(obj, 0, 255);
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fl_set_slider_precision(obj, 0);
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fl_set_object_callback(obj, search_rgb, 0);
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fl_set_slider_return(obj, 0);
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dbobj = new Fl_Button(40, 50, 300, 25, "");
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dbobj->type(FL_NORMAL_BUTTON);
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dbobj->box(FL_BORDER_BOX);
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dbobj->color(FL_INDIANRED,FL_INDIANRED);
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dbobj->callback(db_cb, 0);
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gs = obj = fl_add_valslider(FL_VERT_FILL_SLIDER, 255, 130, 30, 200, "");
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fl_set_object_color(obj, FL_INDIANRED, FL_GREEN);
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fl_set_slider_bounds(obj, 0, 255);
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fl_set_slider_precision(obj, 0);
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fl_set_object_callback(obj, search_rgb, 1);
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fl_set_slider_return(obj, 0);
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colbr = new Fl_Hold_Browser(10, 90, 280, 240, "");
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colbr->textfont(FL_COURIER);
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colbr->callback(br_cb, 0);
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colbr->box(FL_DOWN_BOX);
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bs = obj = fl_add_valslider(FL_VERT_FILL_SLIDER, 285, 130, 30, 200, "");
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fl_set_object_color(obj, FL_INDIANRED, FL_BLUE);
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fl_set_slider_bounds(obj, 0, 255);
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fl_set_slider_precision(obj, 0);
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fl_set_object_callback(obj, search_rgb, 2);
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fl_set_slider_return(obj, 0);
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rescol = new Fl_Box(300, 90, 90, 35, "");
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rescol->color(FL_FREE_COL4, FL_FREE_COL4);
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rescol->box(FL_BORDER_BOX);
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rs = new Fl_Value_Slider(300, 130, 30, 200, "");
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rs->type(FL_VERT_FILL_SLIDER);
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rs->color(FL_INDIANRED, FL_RED);
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rs->bounds(0, 255);
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rs->precision(0);
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rs->callback(search_rgb, 0);
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rs->when(FL_WHEN_RELEASE);
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colbr = obj = fl_add_browser(FL_HOLD_BROWSER, 10, 90, 205, 240, "");
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fl_set_browser_fontstyle(obj, FL_FIXED_STYLE);
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fl_set_object_callback(obj, br_cb, 0);
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gs = new Fl_Value_Slider(330, 130, 30, 200, "");
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gs->type(FL_VERT_FILL_SLIDER);
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gs->color(FL_INDIANRED, FL_GREEN);
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gs->bounds(0, 255);
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gs->precision(0);
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gs->callback(search_rgb, 1);
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gs->when(FL_WHEN_RELEASE);
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bs = new Fl_Value_Slider(360, 130, 30, 200, "");
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bs->type(FL_VERT_FILL_SLIDER);
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bs->color(FL_INDIANRED, FL_BLUE);
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bs->bounds(0, 255);
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bs->precision(0);
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bs->callback(search_rgb, 2);
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bs->when(FL_WHEN_RELEASE);
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obj = fl_add_button(FL_NORMAL_BUTTON, 135, 345, 80, 30, "Done");
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fl_set_object_callback(obj, done_cb, 0);
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Fl_Button *done = new Fl_Button(160, 345, 80, 30, "Done");
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done->type(FL_NORMAL_BUTTON);
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done->callback(done_cb, 0);
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rescol = obj = fl_add_box(FL_FLAT_BOX, 225, 90, 90, 35, "");
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fl_set_object_color(obj, FL_FREE_COL4, FL_FREE_COL4);
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fl_set_object_boxtype(obj, FL_BORDER_BOX);
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fl_end_form();
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fl_scale_form(cl, 1.1, 1.0);
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cl->end();
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cl->resizable(cl);
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}
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//
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