Major GUI workover. Hilights: A new filebrowser and new knob widget.

1 files changed, 151 insertions, 0 deletions

diff --git a/plugingui/filebrowser.cc b/plugingui/filebrowser.cc
new file mode 100644
index 0000000..6582202
--- /dev/null
+++ b/plugingui/filebrowser.cc
@@ -0,0 +1,151 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            filebrowser.cc
+ *
+ *  Mon Feb 25 21:09:44 CET 2013
+ *  Copyright 2013 Bent Bisballe Nyeng
+ *  deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ *  This file is part of DrumGizmo.
+ *
+ *  DrumGizmo is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  DrumGizmo 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with DrumGizmo; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
+ */
+#include "filebrowser.h"
+
+#include "painter.h"
+
+#include "button.h"
+#include "listbox.h"
+
+#include <sys/types.h>
+#include <dirent.h>
+#include <stdio.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+
+struct GUI::FileBrowser::private_data {
+  GUI::ListBox *listbox;
+  void (*filesel_handler)(void *, std::string);
+  void *ptr;
+};
+
+void changeDir(void *ptr)
+{
+  struct GUI::FileBrowser::private_data *prv =
+    (struct GUI::FileBrowser::private_data *)ptr;
+
+  GUI::ListBox *lb = prv->listbox;
+  std::string value = lb->selectedValue();
+
+  char filename[1024];
+  char *c = getcwd(filename, sizeof(filename));
+  (void)c;
+  strcat(filename, "/");
+  strcat(filename, value.c_str());
+
+  struct stat st;
+  if(stat(filename, &st) == 0) {
+    if((st.st_mode & S_IFDIR) != 0) {
+      //printf("'%s' is present and is a directory\n", filename);
+    }
+    if((st.st_mode & S_IFREG) != 0) {
+      //printf("'%s' is present and is a file\n", filename);
+      if(prv->filesel_handler) prv->filesel_handler(prv->ptr, filename);
+      return;
+    }
+  } else {
+    //printf("'%s' is not present or unreadable\n", filename);
+    return;
+  }
+
+  lb->clear();
+  int i = chdir(value.c_str());
+  (void)i;
+  DIR *dir = opendir(".");
+
+  struct dirent *entry;
+  while((entry = readdir(dir)) != NULL) {
+    lb->addItem(entry->d_name, entry->d_name);
+  }
+
+  closedir(dir);
+}
+
+GUI::FileBrowser::FileBrowser(GUI::Widget *parent)
+  : GUI::Widget(parent)
+{
+  prv = new struct GUI::FileBrowser::private_data();
+  prv->filesel_handler = NULL;
+
+#define brd 5 // border
+#define btn_h 12
+
+  listbox = new GUI::ListBox(this);
+  listbox->registerDblClickHandler(changeDir, prv);
+  prv->listbox = listbox;
+
+  btn = new GUI::Button(this);
+  btn->setText("Select");
+  btn->registerClickHandler(changeDir, prv);
+
+  changeDir(prv);
+
+  resize(200, 190);
+}
+
+GUI::FileBrowser::~FileBrowser()
+{
+  delete prv->listbox;
+  delete prv;
+}
+
+void GUI::FileBrowser::resize(size_t w, size_t h)
+{
+  GUI::Widget::resize(w,h);
+
+  listbox->move(brd, brd);
+  listbox->resize(w - 1 - 2*brd, h - btn_h -  3*brd);
+
+  btn->move(brd, h - btn_h - brd);
+  btn->resize(w - 1 - 2*brd, btn_h);
+}
+
+
+void GUI::FileBrowser::registerFileSelectHandler(void (*handler)(void *,
+                                                        std::string),
+                                                 void *ptr)
+{
+  prv->filesel_handler = handler;
+  prv->ptr = ptr;
+}
+
+void GUI::FileBrowser::repaintEvent(GUI::RepaintEvent *e)
+{
+  Painter p(this);
+  p.setColour(Colour(0, 0.8));
+
+  p.drawFilledRectangle(0, 0, width(), height());
+
+  p.setColour(Colour(1, 1));
+
+  for(int i = 1; i < 10; i++) {
+    p.drawLine(0,0,width() / i, height() - 1);
+    p.drawLine(width()-1,0,width() / i, height() - 1);
+  }
+}