Adding an example to demonstrate how to create an Fl_Browser with icons on the items.
Based on an example I'd added to STR#1739 to demo someone's patch. git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@9845 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
This commit is contained in:
Greg Ercolano
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@ -6,6 +6,7 @@ SHELL = /bin/sh
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# Executables
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ALL = howto-add_fd-and-popen$(EXEEXT) \
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howto-browser-with-icons$(EXEEXT) \
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howto-drag-and-drop$(EXEEXT) \
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howto-parse-args$(EXEEXT) \
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howto-text-over-image-button$(EXEEXT) \
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186
examples/howto-browser-with-icons.cxx
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186
examples/howto-browser-with-icons.cxx
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@ -0,0 +1,186 @@
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//
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// "$Id$"
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//
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// Demonstrate creating an Fl_Browser with icons - Greg Ercolano 10/07/09 (STR#1739)
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//
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// Shows how one can add icons to items in a browser.
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//
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// Copyright 2009,2013 Greg Ercolano.
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// Copyright 1998-2010 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// http://www.fltk.org/COPYING.php
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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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_Browser.H>
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#include <FL/Fl_Choice.H>
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#include <FL/Fl_Image.H>
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#include <FL/Fl_Pixmap.H>
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static const char *big[] = { // XPM
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"50 34 4 1",
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" c #000000",
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"o c #ff9900",
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"@ c #ffffff",
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"# c None",
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"##################################################",
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"### ############################## ####",
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"### ooooo ########################### ooooo ####",
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"### oo oo ######################### oo oo ####",
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"### oo oo ####################### oo oo ####",
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"### oo oo ##################### oo oo ####",
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"### oo oo ################### oo oo ####",
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"### oo oo oo oo ####",
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"### oo oo ooooooooooooooo oo oo ####",
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"### oo ooooooooooooooooooooo oo ####",
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"### oo ooooooooooooooooooooooooooo ooo ####",
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"#### oo ooooooo ooooooooooooo ooooooo oo #####",
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"#### oo oooooooo ooooooooooooo oooooooo oo #####",
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"##### oo oooooooo ooooooooooooo oooooooo oo ######",
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"##### o ooooooooooooooooooooooooooooooo o ######",
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"###### ooooooooooooooooooooooooooooooooooo #######",
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"##### ooooooooo ooooooooo ooooooooo ######",
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"##### oooooooo @@@ ooooooo @@@ oooooooo ######",
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"##### oooooooo @@@@@ ooooooo @@@@@ oooooooo ######",
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"##### oooooooo @@@@@ ooooooo @@@@@ oooooooo ######",
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"##### oooooooo @@@ ooooooo @@@ oooooooo ######",
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"##### ooooooooo ooooooooo ooooooooo ######",
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"###### oooooooooooooo oooooooooooooo #######",
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"###### oooooooo@@@@@@@ @@@@@@@oooooooo #######",
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"###### ooooooo@@@@@@@@@ @@@@@@@@@ooooooo #######",
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"####### ooooo@@@@@@@@@@@ @@@@@@@@@@@ooooo ########",
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"######### oo@@@@@@@@@@@@ @@@@@@@@@@@@oo ##########",
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"########## o@@@@@@ @@@@@ @@@@@ @@@@@@o ###########",
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"########### @@@@@@@ @ @@@@@@@ ############",
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"############ @@@@@@@@@@@@@@@@@@@@@ #############",
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"############## @@@@@@@@@@@@@@@@@ ###############",
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"################ @@@@@@@@@ #################",
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"#################### #####################",
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"##################################################",
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};
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static const char *med[] = { // XPM
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"14 14 2 1",
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"# c #000000",
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" c #ffffff",
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"##############",
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"##############",
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"## ##",
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"## ## ## ##",
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"## ## ## ##",
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"## #### ##",
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"## ## ##",
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"## ## ##",
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"## #### ##",
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"## ## ## ##",
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"## ## ## ##",
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"## ##",
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"##############",
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"##############",
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};
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static const char *sml[] = { // XPM
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"9 11 5 1",
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". c None",
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"@ c #000000",
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"+ c #808080",
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"r c #802020",
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"# c #ff8080",
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".........",
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".........",
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"@+.......",
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"@@@+.....",
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"@@r@@+...",
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"@@##r@@+.",
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"@@####r@@",
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"@@##r@@+.",
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"@@r@@+...",
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"@@@+.....",
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"@+.......",
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};
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// Create a custom browser
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//
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// You don't *have* to derive a class just to control icons in a browser,
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// but in final apps it's something you'd do to keep the implementation clean.
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//
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// All it really comes down to is calling browser->icon() to define icons
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// for the items you want.
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//
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class MyBrowser : public Fl_Browser {
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Fl_Image *big_icon;
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Fl_Image *med_icon;
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Fl_Image *sml_icon;
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public:
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MyBrowser(int X,int Y,int W,int H,const char *L=0) : Fl_Browser(X,Y,W,H,L) {
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// Create icons (these could also be pngs, jpegs..)
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big_icon = new Fl_Pixmap(big);
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med_icon = new Fl_Pixmap(med);
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sml_icon = new Fl_Pixmap(sml);
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// Normal browser initialization stuff
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textfont(FL_COURIER);
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textsize(14);
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type(FL_MULTI_BROWSER);
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add("One");
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add("Two");
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add("Three");
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add("Four");
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add("Five");
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add("Six");
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add("Seven");
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}
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static void Choice_CB(Fl_Widget*w, void *d) {
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MyBrowser *mb = (MyBrowser*)d;
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Fl_Choice *ch = (Fl_Choice*)w;
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// See which icon the user picked
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Fl_Image *i = 0;
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if ( strcmp(ch->text(), "None" ) == 0 ) { i = 0; }
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else if ( strcmp(ch->text(), "Small" ) == 0 ) { i = mb->sml_icon; }
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else if ( strcmp(ch->text(), "Medium") == 0 ) { i = mb->med_icon; }
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else if ( strcmp(ch->text(), "Large" ) == 0 ) { i = mb->big_icon; }
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// Change the icon of three browser items to what the user picked
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// This is all you have to do to change a browser item's icon.
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// The browser will automatically resize the items if need be.
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mb->icon(3,i);
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mb->icon(4,i);
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mb->icon(5,i);
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}
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};
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int main() {
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Fl_Double_Window *w = new Fl_Double_Window(400,300);
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// Create a browser
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MyBrowser *b = new MyBrowser(10,40,w->w()-20,w->h()-50);
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// Create a chooser to let the user change the icons
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Fl_Choice *choice = new Fl_Choice(60,10,140,25,"Icon:");
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choice->add("None");
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choice->add("Small");
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choice->add("Medium");
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choice->add("Large");
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choice->callback(MyBrowser::Choice_CB, (void*)b);
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choice->take_focus();
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choice->value(1); choice->do_callback();
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w->end();
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w->show();
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return(Fl::run());
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}
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//
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// End of "$Id$".
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//
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