ST 1148: a preselected filename will also be selected in the file chooser when popping up. I put a lot of effort into trying to make the chooser behave as it previously did in all other situations, e.g. to choose a directory

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@4875 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl_File_Chooser.H

@@ -145,6 +145,7 @@ public:
   void preview(int e);
   int preview() const { return previewButton->value(); };
   void rescan();
+  void rescan_keep_filename();
   void show();
   int shown();
   void textcolor(Fl_Color c);

src/Fl_File_Browser.cxx

@@ -467,7 +467,7 @@ Fl_File_Browser::load(const char     *directory,// I - Directory to load
       {
         sprintf(filename, "%c:/", i);
 
-	if (i < 'C')
+	if (i < 'C') // see also: GetDriveType and GetVolumeInformation in WIN32
 	  add(filename, icon);
 	else
 	  add(filename, icon);

src/Fl_File_Chooser.cxx

@@ -375,7 +375,7 @@ void Fl_File_Chooser::show() {
 window->show();
 Fl::flush();
 fl_cursor(FL_CURSOR_WAIT);
-rescan();
+rescan_keep_filename();
 fl_cursor(FL_CURSOR_DEFAULT);
 fileName->take_focus();
 }

src/Fl_File_Chooser.fl

@@ -61,7 +61,7 @@ class FL_EXPORT Fl_File_Chooser {open
 fileList->deselect();
 Fl::remove_timeout((Fl_Timeout_Handler)previewCB, this);
 window->hide();}
-      private xywh {387 242 490 380} type Double resizable
+      private xywh {368 285 490 380} type Double resizable
       code0 {if (title) window->label(title);}
       code1 {\#include <stdio.h>}
       code2 {\#include <stdlib.h>}
@@ -138,7 +138,7 @@ window->hide();}
 if (callback_)
   (*callback_)(this, data_);
 
-window->hide();} selected
+window->hide();}
             private xywh {313 345 85 25}
             code0 {\#include <FL/fl_ask.H>}
             code1 {okButton->label(fl_ok);}
@@ -160,7 +160,7 @@ window->hide();}
     }
     Fl_Window favWindow {
       label {Manage Favorites}
-      private xywh {437 187 355 150} type Double resizable
+      private xywh {421 56 355 150} type Double resizable
       code0 {favWindow->label(manage_favorites_label);} modal size_range {181 150 0 0} visible
     } {
       Fl_File_Browser favList {
@@ -299,15 +299,18 @@ okButton->parent()->init_sizes();} {}
   }
   decl {void rescan();} {public
   }
-  Function {show()} {return_type void
+  decl {void rescan_keep_filename();} {public
+  }
+  Function {show()} {open return_type void
   } {
     code {window->hotspot(fileList);
 window->show();
 Fl::flush();
 fl_cursor(FL_CURSOR_WAIT);
-rescan();
+rescan_keep_filename();
 fl_cursor(FL_CURSOR_DEFAULT);
-fileName->take_focus();} {}
+fileName->take_focus();} {selected
+    }
   }
   Function {shown()} {return_type int
   } {

src/Fl_File_Chooser2.cxx

@@ -854,6 +854,57 @@ Fl_File_Chooser::rescan()
   update_preview();
 }
 
+//
+// 'Fl_File_Chooser::rescan_keep_filename()' - Rescan the current directory
+// without clearing the filename, then select the file if it is in the list
+//
+
+void
+Fl_File_Chooser::rescan_keep_filename()
+{
+  // if no filename was set, this is likely a diretory browser
+  const char *fn = fileName->value();
+  if (!fn || !*fn || fn[strlen(fn) - 1]=='/') {
+    rescan();
+    return;
+  }
+
+  int   i;
+  char	pathname[1024];		// New pathname for filename field
+  strlcpy(pathname, fn, sizeof(pathname));
+
+  // Build the file list...
+  fileList->load(directory_, sort);
+
+  // Update the preview box...
+  update_preview();
+
+  // and select the chosen file
+  char found = 0;
+  char *slash = strrchr(pathname, '/');
+  if (slash) 
+    slash++;
+  else
+    slash = pathname;
+  for (i = 1; i <= fileList->size(); i ++)
+#if defined(WIN32) || defined(__EMX__)
+    if (strcasecmp(fileList->text(i), slash) == 0) {
+#else
+    if (strcmp(fileList->text(i), slash) == 0) {
+#endif // WIN32 || __EMX__
+      fileList->topline(i);
+      fileList->select(i);
+      found = 1;
+      break;
+    }
+
+  // update OK button activity
+  if (found || type_ & CREATE)
+    okButton->activate();
+  else
+    okButton->deactivate();
+}
+
 
 //
 // 'Fl_File_Chooser::showChoiceCB()' - Handle show selections.
@@ -889,7 +940,7 @@ Fl_File_Chooser::showChoiceCB()
 
   if (shown()) {
     // Rescan the directory...
-    rescan();
+    rescan_keep_filename();
   }
 }