New Fl_File_Input widget, courtesy of Curtis Edwards old Fl_Input_File

widget (Fl_File_Input is much lighter-weight, and is simpler in function.)

Update file chooser dialog to use new Fl_File_Input widget and always
display absolute path.

Still need to do docos, new screenshots, and update FLUID to support the
new widget.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@2145 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 259 insertions, 0 deletions

diff --git a/src/Fl_File_Input.cxx b/src/Fl_File_Input.cxx
new file mode 100644
index 000000000..54a54d98e
--- /dev/null
+++ b/src/Fl_File_Input.cxx
@@ -0,0 +1,259 @@
+//
+// "$Id: Fl_File_Input.cxx,v 1.1.2.1 2002/04/30 21:50:16 easysw Exp $"
+//
+// File_Input header file for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2002 by Bill Spitzak and others.
+// Original version Copyright 1998 by Curtis Edwards.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems to "fltk-bugs@fltk.org".
+//
+
+//#include <FL/Fl_File_Input.H>
+#include <FL/Fl.H>
+#include <FL/Fl_File_Input.H>
+#include <FL/fl_draw.H>
+#include <stdio.h>
+#include "flstring.h"
+
+
+//
+// Height of directory buttons...
+//
+
+#define DIR_HEIGHT	10
+
+
+//
+// Redraw bit for directory bar...
+//
+
+#define FL_DAMAGE_BAR	0x10
+
+
+//
+// 'Fl_File_Input::Fl_File_Input()' - Create a Fl_File_Input widget.
+//
+
+Fl_File_Input::Fl_File_Input(int x, int y, int w, int h, const char *l)
+  : Fl_Input(x, y, w, h, l) {
+  buttons_[0] = 0;
+  errorcolor_ = FL_RED;
+  ok_entry_   = 1;
+  pressed_    = -1;
+
+  down_box(FL_UP_BOX);
+}
+
+//
+// 'Fl_File_Input::draw_buttons()' - Draw directory buttons.
+//
+
+void
+Fl_File_Input::draw_buttons() {
+  int	i,					// Looping var
+	X;					// Current X position
+
+
+  if (damage() & (FL_DAMAGE_BAR | FL_DAMAGE_ALL)) {
+    update_buttons();
+  }
+
+  for (X = 0, i = 0; buttons_[i]; i ++)
+  {
+    if ((X + buttons_[i]) > xscroll()) {
+      if (X < xscroll()) {
+        draw_box(pressed_ == i ? fl_down(down_box()) : down_box(),
+                 x(), y(), X + buttons_[i] - xscroll(), DIR_HEIGHT, FL_GRAY);
+      } else if ((X + buttons_[i] - xscroll()) > w()) {
+	draw_box(pressed_ == i ? fl_down(down_box()) : down_box(),
+        	 x() + X - xscroll(), y(), w() - X + xscroll(), DIR_HEIGHT,
+		 FL_GRAY);
+      } else {
+        draw_box(pressed_ == i ? fl_down(down_box()) : down_box(),
+	         x() + X - xscroll(), y(), buttons_[i], DIR_HEIGHT, FL_GRAY);
+      }
+    }
+
+    X += buttons_[i];
+  }
+
+  if (X < w()) {
+    draw_box(pressed_ == i ? fl_down(down_box()) : down_box(),
+             x() + X - xscroll(), y(), w() - X + xscroll(), DIR_HEIGHT, FL_GRAY);
+  }
+}
+
+//
+// 'Fl_File_Input::update_buttons()' - Update the sizes of the directory buttons.
+//
+
+void
+Fl_File_Input::update_buttons() {
+  int		i;				// Looping var
+  const char	*start,				// Start of path component
+		*end;				// End of path component
+
+
+//  puts("update_buttons()");
+
+  // Set the current font & size...
+  fl_font(textfont(), textsize());
+
+  // Loop through the value string, setting widths...
+  for (i = 0, start = value();
+       start && i < (int)(sizeof(buttons_) / sizeof(buttons_[0]) - 1);
+       start = end, i ++) {
+//    printf("    start = \"%s\"\n", start);
+    if ((end = strchr(start, '/')) == NULL)
+#if defined(WIN32) || defined(__EMX__)
+      if ((end = strchr(start, '\\')) == NULL)
+#endif // WIN32 || __EMX__
+      break;
+
+    end ++;
+
+    buttons_[i] = (int)fl_width(start, end - start);
+    if (!i) buttons_[i] += Fl::box_dx(box()) + 6;
+  }
+
+//  printf("    found %d components/buttons...\n", i);
+
+  buttons_[i] = 0;
+}
+
+
+//
+// 'Fl_File_Input::value()' - Set the value of the widget...
+//
+
+int						// O - TRUE on success
+Fl_File_Input::value(const char *str,		// I - New string value
+                     int        len) {		// I - Length of value
+  damage(FL_DAMAGE_BAR);
+  return Fl_Input::value(str,len);
+}
+
+
+int						// O - TRUE on success
+Fl_File_Input::value(const char *str) {		// I - New string value
+  damage(FL_DAMAGE_BAR);
+  if (*str) return Fl_Input::value(str);
+  else return 0;
+}
+
+
+//
+// 'Fl_File_Input::draw()' - Draw the file input widget...
+//
+
+void
+Fl_File_Input::draw() {
+  Fl_Boxtype b = box();
+  if (damage() & (FL_DAMAGE_BAR | FL_DAMAGE_ALL)) draw_buttons();
+  if (damage() & FL_DAMAGE_ALL) draw_box(b,x(),y()+DIR_HEIGHT,w(),h()-DIR_HEIGHT,color());
+  Fl_Input_::drawtext(x()+Fl::box_dx(b)+3, y()+Fl::box_dy(b)+DIR_HEIGHT,
+		      w()-Fl::box_dw(b)-6, h()-Fl::box_dh(b)-DIR_HEIGHT);
+}
+
+
+//
+// 'Fl_File_Input::handle()' - Handle events in the widget...
+//
+
+int						// O - TRUE if we handled event
+Fl_File_Input::handle(int event) 		// I - Event
+{
+//  printf("handle(event = %d)\n", event);
+
+  if ((event == FL_PUSH || event == FL_RELEASE || event == FL_DRAG) &&
+      (Fl::event_y() < (y() + DIR_HEIGHT) || pressed_ >= 0)) {
+    return handle_button(event);
+  }
+
+  if (Fl_Input::handle(event)) {
+    if (changed()) damage(FL_DAMAGE_BAR);
+    return 1;
+  } else return 0;
+}
+
+
+//
+// 'Fl_File_Input::handle_button()' - Handle button events in the widget...
+//
+
+int						// O - TRUE if we handled event
+Fl_File_Input::handle_button(int event)		// I - Event
+{
+  int		i,				// Looping var
+		X;				// Current X position
+  const char	*start,				// Start of path component
+		*end;				// End of path component
+  char		newvalue[1024];			// New value
+
+
+  // Figure out which button is being pressed...
+  for (X = 0, i = 0; buttons_[i]; i ++)
+  {
+    X += buttons_[i];
+
+    if (X > xscroll() && Fl::event_x() < (x() + X - xscroll())) break;
+  }
+
+//  printf("handle_button(event = %d), button = %d\n", event, i);
+
+  // Redraw the directory bar...
+  if (event == FL_RELEASE) pressed_ = -1;
+  else pressed_ = i;
+
+  draw_buttons();
+
+  // Return immediately if the user is clicking on the last button or
+  // has not released the mouse button...
+  if (!buttons_[i] || event != FL_RELEASE) return 1;
+
+  // Figure out where to truncate the path...
+  strncpy(newvalue, value(), sizeof(newvalue) - 1);
+  newvalue[sizeof(newvalue) - 1] = '\0';
+
+  for (start = newvalue, end = start; start && i >= 0; start = end, i --) {
+//    printf("    start = \"%s\"\n", start);
+    if ((end = strchr(start, '/')) == NULL)
+#if defined(WIN32) || defined(__EMX__)
+      if ((end = strchr(start, '\\')) == NULL)
+#endif // WIN32 || __EMX__
+      break;
+
+    end ++;
+  }
+
+  if (i < 0) {
+    // Found the end; truncate the value and update the buttons...
+    value(newvalue, start - newvalue);
+
+    // Then do the callbacks, if necessary...
+    if (when() & FL_WHEN_CHANGED) do_callback();
+  }
+
+  return 1;
+}
+
+
+//
+// End of "$Id: Fl_File_Input.cxx,v 1.1.2.1 2002/04/30 21:50:16 easysw Exp $".
+//