From 24bb55371a5d8d81b23521ebdfcde68f0035697c Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Sun, 20 Sep 2015 11:36:22 +0200
Subject: Basic project based on DrumGizmo.

---
 plugingui/widget.cc | 189 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 189 insertions(+)
 create mode 100644 plugingui/widget.cc

(limited to 'plugingui/widget.cc')

diff --git a/plugingui/widget.cc b/plugingui/widget.cc
new file mode 100644
index 0000000..0919e22
--- /dev/null
+++ b/plugingui/widget.cc
@@ -0,0 +1,189 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            widget.cc
+ *
+ *  Sun Oct  9 13:01:44 CEST 2011
+ *  Copyright 2011 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 "widget.h"
+
+#include "painter.h"
+#include "window.h"
+
+#include <stdio.h>
+
+namespace GUI {
+
+Widget::Widget(Widget *parent)
+  : pixbuf(1, 1)
+{
+  _width = _height = 10;
+
+  this->parent = parent;
+  if(parent) {
+    parent->addChild(this);
+    _window = parent->window();
+  }
+  _width = _height = 0;
+  _visible = true;
+}
+
+Widget::~Widget()
+{
+  if(parent) parent->removeChild(this);
+}
+
+void Widget::show()
+{
+  setVisible(true);
+}
+
+void Widget::hide()
+{
+  setVisible(false);
+}
+
+void Widget::setVisible(bool v)
+{
+  _visible = v;
+  repaintEvent(NULL);
+}
+
+bool Widget::visible()
+{
+  return _visible;
+}
+
+void Widget::addChild(Widget *widget)
+{
+  children.push_back(widget);
+}
+
+void Widget::removeChild(Widget *widget)
+{
+  std::vector<Widget *>::iterator i = children.begin();
+  while(i != children.end()) {
+    if(*i == widget) {
+      children.erase(i);
+      return;
+    }
+    i++;
+  }
+}
+
+void Widget::resize(int width, int height)
+{
+  if(width < 1 || height < 1) return;
+  _width = width;
+  _height = height;
+  pixbuf.realloc(width, height);
+}
+
+void Widget::move(size_t x, size_t y)
+{
+  _x = x;
+  _y = y;
+}
+
+size_t Widget::x() { return _x; }
+size_t Widget::y() { return _y; }
+size_t Widget::width() { return _width; }
+size_t Widget::height() { return _height; }
+
+size_t Widget::windowX()
+{
+  size_t window_x = x();
+  if(parent) window_x += parent->windowX();
+  return window_x;
+}
+
+size_t Widget::windowY()
+{
+  size_t window_y = y();
+  if(parent) window_y += parent->windowY();
+  return window_y;
+}
+
+Widget *Widget::find(size_t x, size_t y)
+{
+  std::vector<Widget*>::reverse_iterator i = children.rbegin();
+  while(i != children.rend()) {
+    Widget *w = *i;
+    if(w->visible()) {
+      if(w->x() <= x && (w->x() + w->width()) >= x &&
+         w->y() <= y && w->y() + w->height() >= y)
+        return w->find(x - w->x(), y - w->y());
+    }
+    i++;
+  }
+
+  if(x > width() || x < 0 || y > height() || y < 0) return NULL;
+  return this;
+}
+
+Window *Widget::window()
+{
+  return _window;
+}
+
+void Widget::repaint_r(RepaintEvent *e)
+{
+  Painter p(this); // make sure pixbuf refcount is incremented.
+
+  repaintEvent(e);
+
+  std::vector<Widget*>::iterator i = children.begin();
+  while(i != children.end()) {
+    Widget *w = *i;
+    w->repaint_r(e);
+    i++;
+  }
+}
+
+std::vector<PixelBufferAlpha *> Widget::getPixelBuffers()
+{
+  std::vector<PixelBufferAlpha *> pbs;
+
+  pixbuf.x = windowX();
+  pixbuf.y = windowY();
+
+  pbs.push_back(&pixbuf);
+
+  std::vector<Widget*>::iterator i = children.begin();
+  while(i != children.end()) {
+    Widget *w = *i;
+    if(w->visible()) {
+      std::vector<PixelBufferAlpha *> pbs0 = w->getPixelBuffers();
+      pbs.insert(pbs.end(), pbs0.begin(), pbs0.end());
+    }
+    i++;
+  }
+
+  return pbs;
+}
+
+bool Widget::hasKeyboardFocus()
+{
+  return window()->keyboardFocus() == this;
+}
+
+} // GUI::
-- 
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