added source code

git-svn-id: file:///var/local/svn/basicwriter@12 daaaf23c-2e50-4459-9457-1e69db5a47bf

13 files changed, 1575 insertions, 0 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..da91330
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,20 @@
+PROJECT(basicwriter)
+CMAKE_MINIMUM_REQUIRED(VERSION 2.8.9)
+
+SET(CMAKE_AUTOMOC ON)
+FIND_PACKAGE(Qt5Widgets REQUIRED)
+
+INCLUDE_DIRECTORIES(src/)
+
+# Enable C++11 and all warnings
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -pedantic -std=c++11")
+
+ADD_EXECUTABLE(basicwriter
+		src/main.cpp
+		src/gui/notepad.cpp
+		src/gui/components/UIPaneFrame.cpp
+#		src/gui/components/UIGrid.cpp
+#		src/gui/components/GridTree.cpp
+)
+
+QT5_USE_MODULES(basicwriter Widgets)
diff --git a/gpl.txt b/gpl.txt
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/gpl.txt
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
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+
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+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/src/gui/components/GridTree.cpp b/src/gui/components/GridTree.cpp
new file mode 100644
index 0000000..000b859
--- /dev/null
+++ b/src/gui/components/GridTree.cpp
@@ -0,0 +1,95 @@
+/*
+    BasicWriter
+    Copyright (C) 2014  Benjamin Paaßen, Andreas Stöckel
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "GridTree.hpp"
+
+#include <iostream>
+
+namespace uigrid {
+
+Splitter getSplitter(Orientation orientation, const Rect &r)
+{
+	switch (orientation) {
+		case Orientation::vert:
+			return Splitter(this, Rect(r.x1, r.y2 - ss, r.x2, r.y2),
+					orientation);
+		case Orientation::horz:
+			return Splitter(this, Rect(r.x1, r.y1, r.x2 - ss, r.y2 - ss),
+					orientation);
+		default:
+			return Rect(0, 0, 0, 0);
+	}
+}
+
+void GridTreeNode::gatherBoundingBoxes(std::vector<FrameArea> *areas,
+			std::vector<Splitter> *splitters, const Rect &r,
+			int splitterSize)
+{
+	const int ss = splitterSize;
+	const int h = r.h();
+	const int w = r.w();
+
+	// If this node is a leaf, store the area of the frame and the splitter
+	// positions in the given lists and abort.
+	if (isLeaf()) {
+		if (areas) {
+			areas->push_back(FrameArea(this, r));
+		}
+		if (splitters) {
+			splitters->push_back(getSplitter(Orientation::vert, r));
+			splitters->push_back(getSplitter(Orientation::horz, r));
+		}
+		return;
+	}
+
+	// Recursively descend into the child nodes. Calculate the area the
+	// child nodes occupy. The last child should always occupy all remaining
+	// space in order to avoid gaps caused by rounding errors.
+	unsigned int i = 0;
+	switch (orientation) {
+		case Orientation::vert: {
+				int offsY = r.y1;
+				for (auto it = children.begin(); it != children.end();
+						it++, i++) {
+					const int ch = (i == children.size() - 1)
+						? r.y2 - offsY : h * (*it)->relativeSize;
+					(*it)->gatherBoundingBoxes(areas, splitters,
+						Rect::bounds(r.x1, offsY, w, ch), splitterSize);
+					offsY += ch;
+				}
+			}
+			break;
+		case Orientation::horz: {
+				int offsX = r.x1;
+				for (auto it = children.begin(); it != children.end();
+						it++, i++) {
+					const int cw = (i == children.size() - 1)
+						? r.x2 - offsX : w * (*it)->relativeSize;
+					(*it)->gatherBoundingBoxes(areas, splitters,
+						Rect::bounds(offsX, r.y1, cw, h), splitterSize);
+					offsX += cw;
+				}
+			}
+			break;
+		case Orientation::none:
+			break;
+	}
+}
+
+}
+
diff --git a/src/gui/components/GridTree.hpp b/src/gui/components/GridTree.hpp
new file mode 100644
index 0000000..1b0a52a
--- /dev/null
+++ b/src/gui/components/GridTree.hpp
@@ -0,0 +1,232 @@
+/*
+    BasicWriter
+    Copyright (C) 2014  Benjamin Paaßen, Andreas Stöckel
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _GRID_TREE_H_
+#define _GRID_TREE_H_
+
+#include <vector>
+#include <list>
+
+namespace uigrid {
+
+class GridTreeNode;
+
+enum class Orientation
+{
+	none, horz, vert
+};
+
+struct Rect
+{
+	int x1, y1, x2, y2;
+
+	Rect(int x1, int y1, int x2, int y2) :
+		x1(x1), y1(y1), x2(x2), y2(y2)
+	{
+		// Do nothing here
+	}
+
+	static Rect bounds(int x, int y, int w, int h)
+	{
+		return Rect(x, y, x + w, y + h);
+	}
+
+	int w() const
+	{
+		return x2 - x1;
+	}
+
+	int h() const
+	{
+		return y2 - y1;
+	}
+
+};
+
+struct FrameArea
+{
+	GridTreeNode *node;
+	Rect r;
+
+	FrameArea(GridTreeNode *node, const Rect &r) :
+		node(node), r(r)
+	{
+		// Do nothing here
+	}
+};
+
+struct Splitter
+{
+	GridTreeNode *node;
+	Rect r;
+	Orientation orientation;
+
+	Splitter(GridTreeNode *node, const Rect &r, Orientation orientation) :
+		node(node), r(r), orientation(orientation)
+	{
+		// Do nothing here
+	}
+};
+
+class GridTreeNode
+{
+
+private:
+	Orientation orientation;
+	float relativeSize;
+	GridTreeNode *parent;
+	void *data;
+
+	std::list<GridTreeNode*> children;
+
+	void setParent(GridTreeNode *parent)
+	{
+		if (this->parent) {
+			this->parent->removeChild(this);
+		}
+		if (parent) {
+			parent->addChild(this);
+		}
+		this->parent = parent;
+	}
+
+	void removeChild(GridTreeNode *node)
+	{
+		for (auto it = children.begin(); it != children.end();) {
+			if (*it == node) {
+				it = children.erase(it);
+			} else {
+				it++;
+			}
+		}
+	}
+
+	void addChild(GridTreeNode *node)
+	{
+		children.push_back(node);
+	}
+
+public:
+
+	/**
+	 * Constructor of the GridTreeNode class.
+	 *
+	 * @param orientation describes the orientation of the children of
+	 * this grid tree node.
+	 * @param relativeSize contains the size of this node relative to the size
+	 * of its parent node. The sum of the relativeSizes of all siblings has to
+	 * be one.
+	 * @param data is the data that should be attached to the node.
+	 */
+	GridTreeNode(Orientation orientation, float relativeSize = 1.0f,
+			GridTreeNode *parent = nullptr, void *data = nullptr) :
+		orientation(orientation), relativeSize(relativeSize), parent(nullptr),
+		data(data)
+	{
+		setParent(parent);
+	}
+
+	~GridTreeNode()
+	{
+		// Delete all children
+		for (auto c : children) {
+			delete c;
+		}
+	}
+
+	/**
+	 * Returns true if this element of the grid tree is a "leaf" (e.g. this
+	 * element has no children).
+	 *
+	 * @return true if the grid element is a leaf node, false otherwise.
+	 */
+	bool isLeaf() const
+	{
+		return children.empty();
+	}
+
+	/**
+	 * Returns true if this element is the root node (has no parent).
+	 *
+	 * @return true if this element is the root node, false otherwise.
+	 */
+	bool isRoot() const
+	{
+		return parent == nullptr;
+	}
+
+	/**
+	 * Sets the relative size of the node.
+	 *
+	 * @param relativeSize is the new relative size of the frame. Should be in
+	 * an interval of [0, 1].
+	 */
+	void setRelativeSize(float relativeSize)
+	{
+		this->relativeSize = relativeSize;
+	}
+
+	/**
+	 * Returns the current relative size of the node.
+	 *
+	 * @return the current relative size of the node.
+	 */
+	float getRelativeSize()
+	{
+		return relativeSize;
+	}
+
+	/**
+	 * Returns the data that was attached to this grid tree node.
+	 *
+	 * @return the data that was attached to this grid tree node.
+	 */
+	void* getData()
+	{
+		return data;
+	}
+
+	/**
+	 * Gathers the frame areas and the areas for which splitters should be
+	 * drawn.
+	 *
+	 * @param areas is the list into which the frame area descriptors should be
+	 * inserted.
+	 * @param splitters is the list into which the splitter descriptors should
+	 * be inserted. If nullptr is given, the list is not filled
+	 * @param w is the width of the region for which the splitters should be
+	 * gathered.
+	 * @param h is the height of the region for which the splitters should be
+	 * gathered.
+	 */
+	void gatherBoundingBoxes(std::vector<FrameArea> *areas,
+			std::vector<Splitter> *splitters, const Rect &r,
+			int splitterSize);
+
+	/**
+	 * Returns the position of the splitter with the given orientation for this
+	 * element.
+	 */
+	Rect getSplitterPosition(Orientation orientation, const Rect &r);
+
+};
+
+}
+
+#endif /* _GRID_TREE_H_ */
+
diff --git a/src/gui/components/UIGrid.cpp b/src/gui/components/UIGrid.cpp
new file mode 100644
index 0000000..4d6f0e8
--- /dev/null
+++ b/src/gui/components/UIGrid.cpp
@@ -0,0 +1,81 @@
+/*
+    BasicWriter
+    Copyright (C) 2014  Benjamin Paaßen, Andreas Stöckel
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <QApplication>
+#include <QColor>
+#include <QPainter>
+#include <QPalette>
+
+#include "GridTree.hpp"
+
+#include "UIGrid.hpp"
+
+#include <iostream>
+
+namespace uigrid {
+
+UIGrid::UIGrid(QWidget *parent) :
+	QWidget(parent)
+{
+	// Enable automatic ereasing of the background
+	setAutoFillBackground(true);
+
+	// Create the root grid node.
+	rootGridNode = new GridTreeNode(Orientation::horz, 1.0);
+
+	// Insert two new nodes into the tree
+	GridTreeNode *nd1 = new GridTreeNode(Orientation::vert, 0.25, rootGridNode);
+	GridTreeNode *nd2 = new GridTreeNode(Orientation::horz, 0.75, rootGridNode);
+
+	// Add three nodes as children of the first node
+	new GridTreeNode(Orientation::horz, 0.33, nd1);
+	new GridTreeNode(Orientation::horz, 0.33, nd1);
+	new GridTreeNode(Orientation::horz, 0.33, nd1);
+
+	new GridTreeNode(Orientation::vert, 0.75, nd2);
+	new GridTreeNode(Orientation::horz, 0.25, nd2);
+}
+
+UIGrid::~UIGrid()
+{
+	delete rootGridNode;
+}
+
+void UIGrid::paintEvent(QPaintEvent *event)
+{
+	const QPalette &palette = QApplication::palette();
+	// Gather all splitter and frame area regions
+	std::vector<Splitter> splitters;
+	std::vector<FrameArea> areas;
+	rootGridNode->gatherBoundingBoxes(&areas, &splitters,
+			Rect(0, 0, width(), height()), 5);
+
+	QPainter painter(this);
+
+	// Draw the splitters (first the background, then the dividing line)
+	painter.setPen(palette.mid().color());
+	for (auto &c : splitters) {
+		QRect r(c.r.x1, c.r.y1, c.r.w(), c.r.h());
+		painter.fillRect(r, palette.light());
+	}
+
+}
+
+
+}
+
diff --git a/src/gui/components/UIGrid.hpp b/src/gui/components/UIGrid.hpp
new file mode 100644
index 0000000..14d161d
--- /dev/null
+++ b/src/gui/components/UIGrid.hpp
@@ -0,0 +1,49 @@
+/*
+    BasicWriter
+    Copyright (C) 2014  Benjamin Paaßen, Andreas Stöckel
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _UI_GRID_H_
+#define _UI_GRID_H_
+
+#include <QWidget>
+
+namespace uigrid {
+
+class GridTreeNode;
+
+class UIGrid : public QWidget
+{
+	Q_OBJECT
+
+private:
+	GridTreeNode *rootGridNode;
+
+protected:
+	virtual void paintEvent(QPaintEvent *event);
+
+public:
+
+	UIGrid(QWidget *parent);
+
+	~UIGrid();
+
+};
+
+}
+
+#endif /* _UI_GRID_H_ */
+
diff --git a/src/gui/components/UIPaneFrame.cpp b/src/gui/components/UIPaneFrame.cpp
new file mode 100644
index 0000000..1192bad
--- /dev/null
+++ b/src/gui/components/UIPaneFrame.cpp
@@ -0,0 +1,113 @@
+/*
+    BasicWriter
+    Copyright (C) 2014  Benjamin Paaßen, Andreas Stöckel
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <QBoxLayout>
+#include <QVBoxLayout>
+#include <QHBoxLayout>
+#include <QPushButton>
+#include <QFrame>
+#include <QColor>
+#include <QToolButton>
+#include <QSizePolicy>
+#include <QLabel>
+#include <QTreeView>
+#include <QDir>
+#include <QFileSystemModel>
+
+#include <gui/components/UIPaneFrame.hpp>
+
+static void setWidgetColor(QWidget *w, const QColor c)
+{
+	QPalette p(w->palette());
+	p.setColor(QPalette::Background, c);
+	w->setAutoFillBackground(true);
+	w->setPalette(p);
+}
+
+UIPaneFrame::UIPaneFrame(QWidget *parent) :
+	QWidget(parent)
+{
+	// Create the layout components
+	rootLayout = new QVBoxLayout;
+	topLayout = new QHBoxLayout;
+	centerLayout = new QVBoxLayout;
+	bottomLayout = new QHBoxLayout;
+
+	// Assemble the top bar
+//	QToolButton *btn = new QToolButton;
+//	btn->setIcon(QIcon::fromTheme("user-home"));
+
+	QLabel *lbl = new QLabel("Dies ist nur ein Test");
+	lbl->setContentsMargins(10, 0, 10, 0);
+
+	QToolButton *btn2 = new QToolButton;
+	btn2->setIcon(QIcon::fromTheme("edit-find"));
+
+	QToolButton *btn3 = new QToolButton;
+	btn3->setIcon(QIcon::fromTheme("window-new"));
+
+//	topLayout->addWidget(btn);
+	topLayout->addWidget(lbl);
+	topLayout->addWidget(btn2);
+	topLayout->addWidget(btn3);
+
+	QTreeView *tree = new QTreeView;
+	QFileSystemModel *model = new QFileSystemModel;
+	model->setRootPath(QDir::currentPath());
+	tree->setModel(model);
+	centerLayout->addWidget(tree);
+
+	// Remove the spacing of the layout components
+	removeLayoutSpacing(rootLayout);
+	removeLayoutSpacing(topLayout);
+	removeLayoutSpacing(centerLayout);
+	removeLayoutSpacing(bottomLayout);
+
+	// Create the widget containers
+	topContainer = new QWidget;
+	centerContainer = new QWidget;
+	bottomContainer = new QWidget;
+
+	// Assign the layouts to the top and bottom part, add the components to the
+	// root layout
+	topContainer->setLayout(topLayout);
+	topContainer->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);
+
+	centerContainer->setLayout(centerLayout);
+
+	bottomContainer->setLayout(bottomLayout);
+	topContainer->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Preferred);
+
+	rootLayout->addWidget(topContainer, 0);
+	rootLayout->addWidget(centerContainer, 1);
+	rootLayout->addWidget(bottomContainer, 0);
+
+	this->setLayout(rootLayout);
+}
+
+UIPaneFrame::~UIPaneFrame()
+{
+
+}
+
+void UIPaneFrame::removeLayoutSpacing(QBoxLayout *layout)
+{
+	layout->setContentsMargins(0, 0, 0, 0);
+	layout->setSpacing(0);
+}
+
diff --git a/src/gui/components/UIPaneFrame.hpp b/src/gui/components/UIPaneFrame.hpp
new file mode 100644
index 0000000..32bbca7
--- /dev/null
+++ b/src/gui/components/UIPaneFrame.hpp
@@ -0,0 +1,50 @@
+/*
+    BasicWriter
+    Copyright (C) 2014  Benjamin Paaßen, Andreas Stöckel
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _UI_PANE_FRAME_HPP_
+#define _UI_PANE_FRAME_HPP_
+
+#include <QWidget>
+
+class QBoxLayout;
+class QVBoxLayout;
+class QHBoxLayout;
+
+class UIPaneFrame : public QWidget
+{
+	Q_OBJECT
+
+private:
+	QVBoxLayout *rootLayout;
+	QHBoxLayout *topLayout;
+	QVBoxLayout *centerLayout;
+	QHBoxLayout *bottomLayout;
+	QWidget *topContainer;
+	QWidget *centerContainer;
+	QWidget *bottomContainer;
+
+	void removeLayoutSpacing(QBoxLayout *layout);
+
+public:
+	explicit UIPaneFrame(QWidget *parent = 0);
+	 ~UIPaneFrame();
+
+};
+
+#endif /* _UI_PANE_FRAME_HPP_ */
+
diff --git a/src/gui/framework/TileTreeNode.cpp b/src/gui/framework/TileTreeNode.cpp
new file mode 100644
index 0000000..58abf65
--- /dev/null
+++ b/src/gui/framework/TileTreeNode.cpp
@@ -0,0 +1,115 @@
+/*
+    BasicWriter
+    Copyright (C) 2014  Benjamin Paaßen, Andreas Stöckel
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "TileTreeNode.hpp"
+
+namespace TiledUI {
+
+TileTreeNode::TileTreeNode() :
+	parent(nullptr);
+{
+	// Do nothing here
+}
+
+TileTreeNode::TileTreeNode(TileTreeNode *parent) :
+	TileTreeNode()
+{
+	setParent(parent);
+}
+
+TileTreeNode::~TileTreeNode()
+{
+	// Free the memory for all children
+	for (auto &c : children) {
+		delete c;
+	}
+}
+
+void TileTreeNode::setParent(TileTreeNode *newParent)
+{
+	// Automatically remove this child from the old parent
+	if (parent) {
+		parent->removeChild(this);
+	}
+
+	// Add this element to the new parent
+	if (newParent) {
+		newParent->addChild(this);
+	}
+
+	// The current parent is the new parent
+	parent = newParent;
+}
+
+bool TileTreeNode::removeChild(GridTreeNode *node, bool recursive)
+{
+	// Iterate of the current container and remove the given node
+	const int idx = indexOf(node);
+	if (indexOf(node) >= 0) {
+		children.erase(children.begin() + idx);
+		return true;
+	}
+
+	// Descend into the tree if the recursive flag is set to true and the node
+	// was not yet found
+	if (recursive) {
+		for (auto &c : children) {
+			if (c.removeChild(node, true)) {
+				return true;
+			}
+		}
+	}
+
+	return false;
+}
+
+void TileTreeNode::addChild(TileTreeNode *child, int idx)
+{
+	// Make sure the given child is only inserted once into the tree
+	removeChild(child, true);
+
+	// Insert the child at the given position, or at the end if idx < 0
+	if (idx < 0) {
+		children.push_back(child);
+	} else {
+		children.insert(children.begin() + idx, child);
+	}
+}
+
+int TileTreeNode::indexOf(TileTreeNode *child)
+{
+	int i = 0;
+	for (auto it = children.begin(); it != children.end(); it++, i++) {
+		if (*it == node) {
+			return i;
+		}
+	}
+	return -1;
+}
+
+void TileTreeNode::parentWidget()
+{
+	if (parent)
+	{
+		return parent->parentWidget();
+	}
+	return nullptr;
+}
+
+}
+
diff --git a/src/gui/framework/TileTreeNode.hpp b/src/gui/framework/TileTreeNode.hpp
new file mode 100644
index 0000000..07586e1
--- /dev/null
+++ b/src/gui/framework/TileTreeNode.hpp
@@ -0,0 +1,74 @@
+/*
+    BasicWriter
+    Copyright (C) 2014  Benjamin Paaßen, Andreas Stöckel
+
+    This program 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 3 of the License, or
+    (at your option) any later version.
+
+    This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _TILE_TREE_NODE_HPP_
+#define _TILE_TREE_NODE_HPP_
+
+#include <QSize>
+#include <QRect>
+
+#include <list>
+
+namespace TiledUI {
+
+class TileTreeNode {
+
+private:
+	TileTreeNode *parent;
+	std::list<TileTreeNode*> children;
+
+protected:
+
+	void setParent(TileTreeNode *newParent);
+
+	bool removeChild(TileTreeNode *child, bool recursive = false);
+
+	void addChild(TileTreeNode *child, int idx = -1);
+
+	int indexOf(TileTreeNode *child);
+
+	virtual ();
+
+public:
+
+	TileTreeNode();
+
+	TileTreeNode(TileTreeNode *parent);
+
+	~TileTreeNode();
+
+	virtual QSize minimumSize() const = 0;
+
+	virtual QSize maximumSize() const = 0;
+
+	virtual QRect geometry() const = 0;
+
+	void resize(QSize size);
+
+	void resize(int width, int height);
+
+	virtual QWidget* parentWidget();
+
+	virtual void 
+
+};
+
+}
+
+#endif /* _TILE_TREE_NODE_HPP_ */
+
diff --git a/src/gui/notepad.cpp b/src/gui/notepad.cpp
new file mode 100644
index 0000000..e7035f1
--- /dev/null
+++ b/src/gui/notepad.cpp
@@ -0,0 +1,19 @@
+#include <gui/notepad.hpp>
+
+#include <gui/components/UIPaneFrame.hpp>
+//#include <gui/components/UIGrid.hpp>
+
+Notepad::Notepad(QWidget *parent) :
+	QMainWindow(parent)
+{
+	UIPaneFrame *frame = new UIPaneFrame(this);
+	this->setCentralWidget(frame);
+//	resize(1024, 768);
+//	uigrid::UIGrid *grid = new uigrid::UIGrid(this);
+//	setCentralWidget(grid);
+}
+
+Notepad::~Notepad()
+{
+
+}
diff --git a/src/gui/notepad.hpp b/src/gui/notepad.hpp
new file mode 100644
index 0000000..d5c713c
--- /dev/null
+++ b/src/gui/notepad.hpp
@@ -0,0 +1,17 @@
+#ifndef _NOTEPAD_H_
+#define _NOTEPAD_H_
+
+#include <QMainWindow>
+
+class Notepad : public QMainWindow
+{
+	Q_OBJECT
+
+public:
+	explicit Notepad(QWidget *parent = 0);
+	 ~Notepad();
+
+};
+
+#endif /* _NOTEPAD_H_ */
+
diff --git a/src/main.cpp b/src/main.cpp
new file mode 100644
index 0000000..efe3031
--- /dev/null
+++ b/src/main.cpp
@@ -0,0 +1,36 @@
+#include <gui/notepad.hpp>
+#include <QApplication>
+#include <QFile>
+#include <QIODevice>
+#include <QXmlStreamReader>
+
+#include <vector>
+#include <iostream>
+
+int main(int argc, char *argv[])
+{
+	QApplication a(argc, argv);
+	Notepad w;
+	w.show();
+
+	// Open the file given as first argument
+/*	QFile file(argv[1]);
+	if (!file.open(QIODevice::ReadOnly | QIODevice::Text)) {
+		std::cout << "Error while opening file " << argv[1] << std::endl;
+		return 1;
+	}
+
+	// Read all tags using the xml stream reader
+	QXmlStreamReader xml(&file);
+
+	while (!xml.atEnd()) {
+		xml.readNext();
+	}
+	if (xml.hasError()) {
+		std::cout << "Error while parsing XML: " << xml.errorString().toStdString() << " at line " << xml.lineNumber() << std::endl;
+		return 1;
+	}
+	return 0;*/
+
+	return a.exec();
+}