Initial commit.

This code based on mana client http://www.gitorious.org/mana/mana
and my private repository.

1 files changed, 924 insertions, 0 deletions

diff --git a/src/gui/widgets/window.cpp b/src/gui/widgets/window.cpp
new file mode 100644
index 000000000..6564a8d3f
--- /dev/null
+++ b/src/gui/widgets/window.cpp
@@ -0,0 +1,924 @@
+/*
+ *  The Mana Client
+ *  Copyright (C) 2004-2009  The Mana World Development Team
+ *  Copyright (C) 2009-2010  The Mana Developers
+ *
+ *  This file is part of The Mana Client.
+ *
+ *  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 2 of the License, or
+ *  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 "gui/widgets/window.h"
+
+#include "client.h"
+#include "configuration.h"
+#include "log.h"
+
+#include "gui/gui.h"
+#include "gui/palette.h"
+#include "gui/theme.h"
+#include "gui/viewport.h"
+
+#include "gui/widgets/layout.h"
+#include "gui/widgets/resizegrip.h"
+#include "gui/widgets/windowcontainer.h"
+
+#include "resources/image.h"
+
+#include <guichan/exception.hpp>
+#include <guichan/focushandler.hpp>
+
+int Window::instances = 0;
+int Window::mouseResize = 0;
+
+Window::Window(const std::string &caption, bool modal, Window *parent,
+               const std::string &skin):
+    gcn::Window(caption),
+    mGrip(0),
+    mParent(parent),
+    mLayout(NULL),
+    mWindowName("window"),
+    mShowTitle(true),
+    mModal(modal),
+    mCloseButton(false),
+    mDefaultVisible(false),
+    mSaveVisible(false),
+    mStickyButton(false),
+    mSticky(false),
+    mMinWinWidth(100),
+    mMinWinHeight(40),
+    mMaxWinWidth(graphics->getWidth()),
+    mMaxWinHeight(graphics->getHeight())
+{
+    logger->log("Window::Window(\"%s\")", caption.c_str());
+
+    if (!windowContainer)
+        throw GCN_EXCEPTION("Window::Window(): no windowContainer set");
+
+    instances++;
+
+    setFrameSize(0);
+    setPadding(3);
+    setTitleBarHeight(20);
+
+    // Loads the skin
+    mSkin = Theme::instance()->load(skin);
+
+    // Add this window to the window container
+    windowContainer->add(this);
+
+    if (mModal)
+    {
+        gui->setCursorType(Gui::CURSOR_POINTER);
+        requestModalFocus();
+    }
+
+    // Windows are invisible by default
+    setVisible(false);
+
+    addWidgetListener(this);
+}
+
+Window::~Window()
+{
+    logger->log("Window::~Window(\"%s\")", getCaption().c_str());
+
+    saveWindowState();
+
+    delete mLayout;
+    mLayout = 0;
+
+    while (!mWidgets.empty())
+        delete mWidgets.front();
+
+// need mWidgets.clean ?
+
+    removeWidgetListener(this);
+
+    instances--;
+
+    if (mSkin)
+        mSkin->instances--;
+}
+
+void Window::setWindowContainer(WindowContainer *wc)
+{
+    windowContainer = wc;
+}
+
+void Window::draw(gcn::Graphics *graphics)
+{
+    if (!mSkin)
+        return;
+
+    Graphics *g = static_cast<Graphics*>(graphics);
+
+    g->drawImageRect(0, 0, getWidth(), getHeight(), mSkin->getBorder());
+
+    // Draw title
+    if (mShowTitle)
+    {
+        g->setColor(Theme::getThemeColor(Theme::TEXT));
+        g->setFont(getFont());
+        g->drawText(getCaption(), 7, 5, gcn::Graphics::LEFT);
+    }
+
+    // Draw Close Button
+    if (mCloseButton && mSkin->getCloseImage())
+    {
+        g->drawImage(mSkin->getCloseImage(),
+            getWidth() - mSkin->getCloseImage()->getWidth() - getPadding(),
+            getPadding());
+    }
+
+    // Draw Sticky Button
+    if (mStickyButton)
+    {
+        Image *button = mSkin->getStickyImage(mSticky);
+        if (button)
+        {
+            int x = getWidth() - button->getWidth() - getPadding();
+            if (mCloseButton && mSkin->getCloseImage())
+                x -= mSkin->getCloseImage()->getWidth();
+
+            g->drawImage(button, x, getPadding());
+        }
+    }
+
+    drawChildren(graphics);
+}
+
+void Window::setContentSize(int width, int height)
+{
+    width = width + 2 * getPadding();
+    height = height + getPadding() + getTitleBarHeight();
+
+    if (getMinWidth() > width)
+        width = getMinWidth();
+    else if (getMaxWidth() < width)
+        width = getMaxWidth();
+    if (getMinHeight() > height)
+        height = getMinHeight();
+    else if (getMaxHeight() < height)
+        height = getMaxHeight();
+
+    setSize(width, height);
+}
+
+void Window::setLocationRelativeTo(gcn::Widget *widget)
+{
+    if (!widget)
+        return;
+
+    int wx, wy;
+    int x, y;
+
+    widget->getAbsolutePosition(wx, wy);
+    getAbsolutePosition(x, y);
+
+    setPosition(getX() + (wx + (widget->getWidth() - getWidth()) / 2 - x),
+                getY() + (wy + (widget->getHeight() - getHeight()) / 2 - y));
+}
+
+void Window::setLocationHorisontallyRelativeTo(gcn::Widget *widget)
+{
+    if (!widget)
+        return;
+
+    int wx, wy;
+    int x, y;
+
+    widget->getAbsolutePosition(wx, wy);
+    getAbsolutePosition(x, y);
+
+    setPosition(getX() + (wx + (widget->getWidth() - getWidth()) / 2 - x), 0);
+}
+
+void Window::setLocationRelativeTo(ImageRect::ImagePosition position,
+                                   int offsetX, int offsetY)
+{
+    if (position == ImageRect::UPPER_LEFT)
+    {
+    }
+    else if (position == ImageRect::UPPER_CENTER)
+    {
+        offsetX += (graphics->getWidth() - getWidth()) / 2;
+    }
+    else if (position == ImageRect::UPPER_RIGHT)
+    {
+        offsetX += graphics->getWidth() - getWidth();
+    }
+    else if (position == ImageRect::LEFT)
+    {
+        offsetY += (graphics->getHeight() - getHeight()) / 2;
+    }
+    else if (position == ImageRect::CENTER)
+    {
+        offsetX += (graphics->getWidth() - getWidth()) / 2;
+        offsetY += (graphics->getHeight() - getHeight()) / 2;
+    }
+    else if (position == ImageRect::RIGHT)
+    {
+        offsetX += graphics->getWidth() - getWidth();
+        offsetY += (graphics->getHeight() - getHeight()) / 2;
+    }
+    else if (position == ImageRect::LOWER_LEFT)
+    {
+        offsetY += graphics->getHeight() - getHeight();
+    }
+    else if (position == ImageRect::LOWER_CENTER)
+    {
+        offsetX += (graphics->getWidth() - getWidth()) / 2;
+        offsetY += graphics->getHeight() - getHeight();
+    }
+    else if (position == ImageRect::LOWER_RIGHT)
+    {
+        offsetX += graphics->getWidth() - getWidth();
+        offsetY += graphics->getHeight() - getHeight();
+    }
+
+    setPosition(offsetX, offsetY);
+}
+
+void Window::setMinWidth(int width)
+{
+    mMinWinWidth = width > mSkin->getMinWidth() ? width : mSkin->getMinWidth();
+}
+
+void Window::setMinHeight(int height)
+{
+    mMinWinHeight = height > mSkin->getMinHeight() ?
+                    height : mSkin->getMinHeight();
+}
+
+void Window::setMaxWidth(int width)
+{
+    mMaxWinWidth = width;
+}
+
+void Window::setMaxHeight(int height)
+{
+    mMaxWinHeight = height;
+}
+
+void Window::setResizable(bool r)
+{
+    if (static_cast<bool>(mGrip) == r)
+        return;
+
+    if (r)
+    {
+        mGrip = new ResizeGrip;
+        mGrip->setX(getWidth() - mGrip->getWidth() - getChildrenArea().x);
+        mGrip->setY(getHeight() - mGrip->getHeight() - getChildrenArea().y);
+        add(mGrip);
+    }
+    else
+    {
+        remove(mGrip);
+        delete mGrip;
+        mGrip = 0;
+    }
+}
+
+void Window::widgetResized(const gcn::Event &event _UNUSED_)
+{
+    const gcn::Rectangle area = getChildrenArea();
+
+    if (mGrip)
+    {
+        mGrip->setPosition(getWidth() - mGrip->getWidth() - area.x,
+                           getHeight() - mGrip->getHeight() - area.y);
+    }
+
+    if (mLayout)
+    {
+        int w = area.width;
+        int h = area.height;
+        mLayout->reflow(w, h);
+    }
+}
+
+void Window::widgetHidden(const gcn::Event &event _UNUSED_)
+{
+    if (gui)
+        gui->setCursorType(Gui::CURSOR_POINTER);
+
+    WidgetListIterator it;
+
+    if (!mFocusHandler)
+        return;
+
+    for (it = mWidgets.begin(); it != mWidgets.end(); it++)
+    {
+        if (mFocusHandler->isFocused(*it))
+            mFocusHandler->focusNone();
+    }
+}
+
+void Window::setCloseButton(bool flag)
+{
+    mCloseButton = flag;
+}
+
+bool Window::isResizable() const
+{
+    return mGrip;
+}
+
+void Window::setStickyButton(bool flag)
+{
+    mStickyButton = flag;
+}
+
+void Window::setSticky(bool sticky)
+{
+    mSticky = sticky;
+}
+
+void Window::setVisible(bool visible)
+{
+    setVisible(visible, false);
+}
+
+void Window::setVisible(bool visible, bool forceSticky)
+{
+    if (visible == isVisible())
+        return; // Nothing to do
+
+    // Check if the window is off screen...
+    if (visible)
+        checkIfIsOffScreen();
+
+    gcn::Window::setVisible((!forceSticky && isSticky()) || visible);
+}
+
+void Window::scheduleDelete()
+{
+    windowContainer->scheduleDelete(this);
+}
+
+void Window::mousePressed(gcn::MouseEvent &event)
+{
+    // Let Guichan move window to top and figure out title bar drag
+    gcn::Window::mousePressed(event);
+
+    if (event.getButton() == gcn::MouseEvent::LEFT)
+    {
+        const int x = event.getX();
+        const int y = event.getY();
+
+        // Handle close button
+        if (mCloseButton)
+        {
+            Image *img = mSkin->getCloseImage();
+            if (img)
+            {
+                gcn::Rectangle closeButtonRect(
+                    getWidth() - img->getWidth()
+                    - getPadding(), getPadding(),
+                    img->getWidth(), img->getHeight());
+
+                if (closeButtonRect.isPointInRect(x, y))
+                {
+                    mouseResize = 0;
+                    mMoved = 0;
+                    close();
+                    return;
+                }
+            }
+        }
+
+        // Handle sticky button
+        if (mStickyButton)
+        {
+            Image *button = mSkin->getStickyImage(mSticky);
+            if (button)
+            {
+                int rx = getWidth() - button->getWidth() - getPadding();
+                if (mCloseButton)
+                {
+                    Image *img = mSkin->getCloseImage();
+                    if (img)
+                        rx -= img->getWidth();
+                }
+                gcn::Rectangle stickyButtonRect(rx, getPadding(),
+                    button->getWidth(), button->getHeight());
+                if (stickyButtonRect.isPointInRect(x, y))
+                {
+                    setSticky(!isSticky());
+                    mouseResize = 0;
+                    mMoved = 0;
+                    return;
+                }
+            }
+        }
+
+        // Handle window resizing
+        mouseResize = getResizeHandles(event);
+        mMoved = !mouseResize;
+    }
+}
+
+void Window::close()
+{
+    setVisible(false);
+}
+
+void Window::mouseReleased(gcn::MouseEvent &event _UNUSED_)
+{
+    if (mGrip && mouseResize)
+    {
+        mouseResize = 0;
+        if (gui)
+            gui->setCursorType(Gui::CURSOR_POINTER);
+    }
+
+    // This should be the responsibility of Guichan (and is from 0.8.0 on)
+    mMoved = false;
+}
+
+void Window::mouseExited(gcn::MouseEvent &event _UNUSED_)
+{
+    if (mGrip && !mouseResize && gui)
+        gui->setCursorType(Gui::CURSOR_POINTER);
+}
+
+void Window::mouseMoved(gcn::MouseEvent &event)
+{
+    if (!gui)
+        return;
+
+    int resizeHandles = getResizeHandles(event);
+
+    // Changes the custom mouse cursor based on it's current position.
+    switch (resizeHandles)
+    {
+        case BOTTOM | RIGHT:
+        case TOP | LEFT:
+            gui->setCursorType(Gui::CURSOR_RESIZE_DOWN_RIGHT);
+            break;
+        case TOP | RIGHT:
+        case BOTTOM | LEFT:
+            gui->setCursorType(Gui::CURSOR_RESIZE_DOWN_LEFT);
+            break;
+        case BOTTOM:
+        case TOP:
+            gui->setCursorType(Gui::CURSOR_RESIZE_DOWN);
+            break;
+        case RIGHT:
+        case LEFT:
+            gui->setCursorType(Gui::CURSOR_RESIZE_ACROSS);
+            break;
+        default:
+            gui->setCursorType(Gui::CURSOR_POINTER);
+    }
+
+    if (viewport)
+        viewport->hideBeingPopup();
+}
+
+void Window::mouseDragged(gcn::MouseEvent &event)
+{
+    // Let Guichan handle title bar drag
+    gcn::Window::mouseDragged(event);
+
+    // Keep guichan window inside screen when it may be moved
+    if (isMovable() && mMoved)
+    {
+        int newX = std::max(0, getX());
+        int newY = std::max(0, getY());
+        newX = std::min(graphics->getWidth() - getWidth(), newX);
+        newY = std::min(graphics->getHeight() - getHeight(), newY);
+        setPosition(newX, newY);
+    }
+
+    if (mouseResize && !mMoved)
+    {
+        const int dx = event.getX() - mDragOffsetX;
+        const int dy = event.getY() - mDragOffsetY;
+        gcn::Rectangle newDim = getDimension();
+
+        if (mouseResize & (TOP | BOTTOM))
+        {
+            int newHeight = newDim.height + ((mouseResize & TOP) ? -dy : dy);
+            newDim.height = std::min(mMaxWinHeight,
+                                     std::max(mMinWinHeight, newHeight));
+
+            if (mouseResize & TOP)
+                newDim.y -= newDim.height - getHeight();
+        }
+
+        if (mouseResize & (LEFT | RIGHT))
+        {
+            int newWidth = newDim.width + ((mouseResize & LEFT) ? -dx : dx);
+            newDim.width = std::min(mMaxWinWidth,
+                                    std::max(mMinWinWidth, newWidth));
+
+            if (mouseResize & LEFT)
+                newDim.x -= newDim.width - getWidth();
+        }
+
+        // Keep guichan window inside screen (supports resizing any side)
+        if (newDim.x < 0)
+        {
+            newDim.width += newDim.x;
+            newDim.x = 0;
+        }
+        if (newDim.y < 0)
+        {
+            newDim.height += newDim.y;
+            newDim.y = 0;
+        }
+        if (newDim.x + newDim.width > graphics->getWidth())
+        {
+            newDim.width = graphics->getWidth() - newDim.x;
+        }
+        if (newDim.y + newDim.height > graphics->getHeight())
+        {
+            newDim.height = graphics->getHeight() - newDim.y;
+        }
+
+        // Update mouse offset when dragging bottom or right border
+        if (mouseResize & BOTTOM)
+            mDragOffsetY += newDim.height - getHeight();
+
+        if (mouseResize & RIGHT)
+            mDragOffsetX += newDim.width - getWidth();
+
+        // Set the new window and content dimensions
+        setDimension(newDim);
+    }
+}
+
+void Window::setModal(bool modal)
+{
+    if (mModal != modal)
+    {
+        mModal = modal;
+        if (mModal)
+        {
+            if (gui)
+                gui->setCursorType(Gui::CURSOR_POINTER);
+            requestModalFocus();
+        }
+        else
+        {
+            releaseModalFocus();
+        }
+    }
+}
+
+void Window::loadWindowState()
+{
+    const std::string &name = mWindowName;
+    assert(!name.empty());
+
+    setPosition(config.getValueInt(name + "WinX", mDefaultX),
+                config.getValueInt(name + "WinY", mDefaultY));
+
+    if (mSaveVisible)
+    {
+        setVisible(config.getValueBool(name
+                   + "Visible", mDefaultVisible));
+    }
+
+    if (mStickyButton)
+    {
+        setSticky(config.getValueBool(name
+                  + "Sticky", isSticky()));
+    }
+
+    if (mGrip)
+    {
+        int width = config.getValueInt(name + "WinWidth", mDefaultWidth);
+        int height = config.getValueInt(name + "WinHeight", mDefaultHeight);
+
+        if (getMinWidth() > width)
+            width = getMinWidth();
+        else if (getMaxWidth() < width)
+            width = getMaxWidth();
+        if (getMinHeight() > height)
+            height = getMinHeight();
+        else if (getMaxHeight() < height)
+            height = getMaxHeight();
+
+        setSize(width, height);
+    }
+    else
+    {
+        setSize(mDefaultWidth, mDefaultHeight);
+    }
+
+    // Check if the window is off screen...
+    checkIfIsOffScreen();
+}
+
+void Window::saveWindowState()
+{
+    // Saving X, Y and Width and Height for resizables in the config
+    if (!mWindowName.empty() && mWindowName != "window")
+    {
+        config.setValue(mWindowName + "WinX", getX());
+        config.setValue(mWindowName + "WinY", getY());
+
+        if (mSaveVisible)
+            config.setValue(mWindowName + "Visible", isVisible());
+
+        if (mStickyButton)
+            config.setValue(mWindowName + "Sticky", isSticky());
+
+        if (mGrip)
+        {
+            if (getMinWidth() > getWidth())
+                setWidth(getMinWidth());
+            else if (getMaxWidth() < getWidth())
+                setWidth(getMaxWidth());
+            if (getMinHeight() > getHeight())
+                setHeight(getMinHeight());
+            else if (getMaxHeight() < getHeight())
+                setHeight(getMaxHeight());
+
+            config.setValue(mWindowName + "WinWidth", getWidth());
+            config.setValue(mWindowName + "WinHeight", getHeight());
+        }
+    }
+}
+
+void Window::setDefaultSize(int defaultX, int defaultY,
+                            int defaultWidth, int defaultHeight)
+{
+    if (getMinWidth() > defaultWidth)
+        defaultWidth = getMinWidth();
+    else if (getMaxWidth() < defaultWidth)
+        defaultWidth = getMaxWidth();
+    if (getMinHeight() > defaultHeight)
+        defaultHeight = getMinHeight();
+    else if (getMaxHeight() < defaultHeight)
+        defaultHeight = getMaxHeight();
+
+    mDefaultX = defaultX;
+    mDefaultY = defaultY;
+    mDefaultWidth = defaultWidth;
+    mDefaultHeight = defaultHeight;
+}
+
+void Window::setDefaultSize()
+{
+    mDefaultX = getX();
+    mDefaultY = getY();
+    mDefaultWidth = getWidth();
+    mDefaultHeight = getHeight();
+}
+
+void Window::setDefaultSize(int defaultWidth, int defaultHeight,
+                            ImageRect::ImagePosition position,
+                            int offsetX, int offsetY)
+{
+    int x = 0, y = 0;
+
+    if (position == ImageRect::UPPER_LEFT)
+    {
+    }
+    else if (position == ImageRect::UPPER_CENTER)
+    {
+        x = (graphics->getWidth() - defaultWidth) / 2;
+    }
+    else if (position == ImageRect::UPPER_RIGHT)
+    {
+        x = graphics->getWidth() - defaultWidth;
+    }
+    else if (position == ImageRect::LEFT)
+    {
+        y = (graphics->getHeight() - defaultHeight) / 2;
+    }
+    else if (position == ImageRect::CENTER)
+    {
+        x = (graphics->getWidth() - defaultWidth) / 2;
+        y = (graphics->getHeight() - defaultHeight) / 2;
+    }
+    else if (position == ImageRect::RIGHT)
+    {
+        x = graphics->getWidth() - defaultWidth;
+        y = (graphics->getHeight() - defaultHeight) / 2;
+    }
+    else if (position == ImageRect::LOWER_LEFT)
+    {
+        y = graphics->getHeight() - defaultHeight;
+    }
+    else if (position == ImageRect::LOWER_CENTER)
+    {
+        x = (graphics->getWidth() - defaultWidth) / 2;
+        y = graphics->getHeight() - defaultHeight;
+    }
+    else if (position == ImageRect::LOWER_RIGHT)
+    {
+        x = graphics->getWidth() - defaultWidth;
+        y = graphics->getHeight() - defaultHeight;
+    }
+
+    mDefaultX = x - offsetX;
+    mDefaultY = y - offsetY;
+    mDefaultWidth = defaultWidth;
+    mDefaultHeight = defaultHeight;
+}
+
+void Window::resetToDefaultSize()
+{
+    setPosition(mDefaultX, mDefaultY);
+    setSize(mDefaultWidth, mDefaultHeight);
+    saveWindowState();
+}
+
+int Window::getResizeHandles(gcn::MouseEvent &event)
+{
+    int resizeHandles = 0;
+    const int y = event.getY();
+
+    if (mGrip && (y > static_cast<int>(mTitleBarHeight)
+        || (y < (int)getPadding() && mTitleBarHeight > getPadding())))
+    {
+        const int x = event.getX();
+
+        if (!getWindowArea().isPointInRect(x, y) && event.getSource() == this)
+        {
+            resizeHandles |= (x > getWidth() - resizeBorderWidth) ? RIGHT :
+                              (x < resizeBorderWidth) ? LEFT : 0;
+            resizeHandles |= (y > getHeight() - resizeBorderWidth) ? BOTTOM :
+                              (y < resizeBorderWidth) ? TOP : 0;
+        }
+
+        if (event.getSource() == mGrip)
+        {
+            mDragOffsetX = x;
+            mDragOffsetY = y;
+            resizeHandles |= BOTTOM | RIGHT;
+        }
+    }
+
+    return resizeHandles;
+}
+
+bool Window::isResizeAllowed(gcn::MouseEvent &event)
+{
+    const int y = event.getY();
+
+    if (mGrip && (y > static_cast<int>(mTitleBarHeight)
+        || y < (int)getPadding()))
+    {
+        const int x = event.getX();
+
+        if (!getWindowArea().isPointInRect(x, y) && event.getSource() == this)
+            return true;
+
+        if (event.getSource() == mGrip)
+            return true;
+    }
+
+    return false;
+}
+
+int Window::getGuiAlpha()
+{
+    float alpha = std::max(Client::getGuiAlpha(),
+        Theme::instance()->getMinimumOpacity());
+    return static_cast<int>(alpha * 255.0f);
+}
+
+Layout &Window::getLayout()
+{
+    if (!mLayout)
+        mLayout = new Layout;
+    return *mLayout;
+}
+
+void Window::clearLayout()
+{
+    clear();
+
+    // Restore the resize grip
+    if (mGrip)
+        add(mGrip);
+
+    // Recreate layout instance when one is present
+    if (mLayout)
+    {
+        delete mLayout;
+        mLayout = new Layout;
+    }
+}
+
+LayoutCell &Window::place(int x, int y, gcn::Widget *wg, int w, int h)
+{
+    add(wg);
+    return getLayout().place(wg, x, y, w, h);
+}
+
+ContainerPlacer Window::getPlacer(int x, int y)
+{
+    return ContainerPlacer(this, &getLayout().at(x, y));
+}
+
+void Window::reflowLayout(int w, int h)
+{
+    if (!mLayout)
+        return;
+
+    mLayout->reflow(w, h);
+    delete mLayout;
+    mLayout = 0;
+    setContentSize(w, h);
+}
+
+void Window::redraw()
+{
+    if (mLayout)
+    {
+        const gcn::Rectangle area = getChildrenArea();
+        int w = area.width;
+        int h = area.height;
+        mLayout->reflow(w, h);
+    }
+}
+
+void Window::center()
+{
+    setLocationRelativeTo(getParent());
+}
+
+void Window::centerHorisontally()
+{
+    setLocationHorisontallyRelativeTo(getParent());
+}
+
+void Window::checkIfIsOffScreen(bool partially, bool entirely)
+{
+    // Move the window onto screen if it has become off screen
+    // For instance, because of resolution change...
+
+    // First of all, don't deal when a window hasn't got
+    // any size initialized yet...
+    if (getWidth() == 0 && getHeight() == 0)
+        return;
+
+    // Made partially the default behaviour
+    if (!partially && !entirely)
+        partially = true;
+
+  // Keep guichan window inside screen (supports resizing any side)
+
+    gcn::Rectangle winDimension =  getDimension();
+
+    if (winDimension.x < 0)
+    {
+        winDimension.width += winDimension.x;
+        winDimension.x = 0;
+    }
+    if (winDimension.y < 0)
+    {
+        winDimension.height += winDimension.y;
+        winDimension.y = 0;
+    }
+
+    // Look if the window is partially off-screen limits...
+    if (partially)
+    {
+        if (winDimension.x + winDimension.width > graphics->getWidth())
+            winDimension.x = graphics->getWidth() - winDimension.width;
+
+        if (winDimension.y + winDimension.height > graphics->getHeight())
+            winDimension.y = graphics->getHeight() - winDimension.height;
+
+        setDimension(winDimension);
+        return;
+    }
+
+    if (entirely)
+    {
+        if (winDimension.x > graphics->getWidth())
+            winDimension.x = graphics->getWidth() - winDimension.width;
+
+        if (winDimension.y > graphics->getHeight())
+            winDimension.y = graphics->getHeight() - winDimension.height;
+    }
+    setDimension(winDimension);
+}
+
+gcn::Rectangle Window::getWindowArea()
+{
+    return gcn::Rectangle(getPadding(),
+                          getPadding(),
+                          getWidth() - getPadding() * 2,
+                          getHeight() - getPadding() * 2);
+}
\ No newline at end of file