Initial commit.

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

1 files changed, 445 insertions, 0 deletions

diff --git a/src/gui/widgets/scrollarea.cpp b/src/gui/widgets/scrollarea.cpp
new file mode 100644
index 000000000..187794b1d
--- /dev/null
+++ b/src/gui/widgets/scrollarea.cpp
@@ -0,0 +1,445 @@
+/*
+ *  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/scrollarea.h"
+
+#include "client.h"
+#include "configuration.h"
+#include "graphics.h"
+#include "log.h"
+
+#include "gui/theme.h"
+
+#include "resources/image.h"
+
+#include "utils/dtor.h"
+
+int ScrollArea::instances = 0;
+float ScrollArea::mAlpha = 1.0;
+ImageRect ScrollArea::background;
+ImageRect ScrollArea::vMarker;
+ImageRect ScrollArea::vMarkerHi;
+Image *ScrollArea::buttons[4][2];
+
+ScrollArea::ScrollArea():
+    gcn::ScrollArea(),
+    mX(0),
+    mY(0),
+    mHasMouse(false),
+    mOpaque(true)
+{
+    addWidgetListener(this);
+    init();
+}
+
+ScrollArea::ScrollArea(gcn::Widget *widget):
+    gcn::ScrollArea(widget),
+    mX(0),
+    mY(0),
+    mHasMouse(false),
+    mOpaque(true)
+{
+    init();
+}
+
+ScrollArea::~ScrollArea()
+{
+    // Garbage collection
+    delete getContent();
+
+    instances--;
+
+    if (instances == 0)
+    {
+        for_each(background.grid, background.grid + 9, dtor<Image*>());
+        for_each(vMarker.grid, vMarker.grid + 9, dtor<Image*>());
+        for_each(vMarkerHi.grid, vMarkerHi.grid + 9, dtor<Image*>());
+
+        if (buttons[UP][0])
+            buttons[UP][0]->decRef();
+        if (buttons[UP][1])
+            buttons[UP][1]->decRef();
+        if (buttons[DOWN][0])
+            buttons[DOWN][0]->decRef();
+        if (buttons[DOWN][1])
+            buttons[DOWN][1]->decRef();
+        if (buttons[LEFT][0])
+            buttons[LEFT][0]->decRef();
+        if (buttons[LEFT][1])
+            buttons[LEFT][1]->decRef();
+        if (buttons[RIGHT][0])
+            buttons[RIGHT][0]->decRef();
+        if (buttons[RIGHT][1])
+            buttons[RIGHT][1]->decRef();
+    }
+}
+
+void ScrollArea::init()
+{
+    // Draw background by default
+    setOpaque(true);
+
+    setUpButtonScrollAmount(2);
+    setDownButtonScrollAmount(2);
+    setLeftButtonScrollAmount(2);
+    setRightButtonScrollAmount(2);
+
+    if (instances == 0)
+    {
+        // Load the background skin
+        Image *textbox = Theme::getImageFromTheme("deepbox.png");
+        const int bggridx[4] = {0, 3, 28, 31};
+        const int bggridy[4] = {0, 3, 28, 31};
+        int a = 0, x, y;
+
+        for (y = 0; y < 3; y++)
+        {
+            for (x = 0; x < 3; x++)
+            {
+                if (textbox)
+                {
+                    background.grid[a] = textbox->getSubImage(
+                        bggridx[x], bggridy[y],
+                        bggridx[x + 1] - bggridx[x] + 1,
+                        bggridy[y + 1] - bggridy[y] + 1);
+                    background.grid[a]->setAlpha(
+                        Client::getGuiAlpha());
+                }
+                else
+                {
+                    background.grid[a] = 0;
+                }
+                a++;
+            }
+        }
+
+        textbox->decRef();
+
+        // Load vertical scrollbar skin
+        Image *vscroll = Theme::getImageFromTheme("vscroll_grey.png");
+        Image *vscrollHi = Theme::getImageFromTheme("vscroll_highlight.png");
+
+        int vsgridx[4] = {0, 4, 7, 11};
+        int vsgridy[4] = {0, 4, 15, 19};
+        a = 0;
+
+        for (y = 0; y < 3; y++)
+        {
+            for (x = 0; x < 3; x++)
+            {
+                if (vscroll)
+                {
+                    vMarker.grid[a] = vscroll->getSubImage(
+                        vsgridx[x], vsgridy[y],
+                        vsgridx[x + 1] - vsgridx[x],
+                        vsgridy[y + 1] - vsgridy[y]);
+                    vMarker.grid[a]->setAlpha(
+                        Client::getGuiAlpha());
+                }
+                else
+                {
+                    vMarker.grid[a] = 0;
+                }
+                if (vscrollHi)
+                {
+                    vMarkerHi.grid[a] = vscrollHi->getSubImage(
+                        vsgridx[x], vsgridy[y],
+                        vsgridx[x + 1] - vsgridx[x],
+                        vsgridy[y + 1] - vsgridy[y]);
+                    vMarkerHi.grid[a]->setAlpha(
+                        Client::getGuiAlpha());
+                }
+                else
+                {
+                    vMarkerHi.grid[a] = 0;
+                }
+                a++;
+            }
+        }
+
+        if (vscroll)
+            vscroll->decRef();
+        if (vscrollHi)
+            vscrollHi->decRef();
+
+        buttons[UP][0] =
+            Theme::getImageFromTheme("vscroll_up_default.png");
+        buttons[DOWN][0] =
+            Theme::getImageFromTheme("vscroll_down_default.png");
+        buttons[LEFT][0] =
+            Theme::getImageFromTheme("hscroll_left_default.png");
+        buttons[RIGHT][0] =
+            Theme::getImageFromTheme("hscroll_right_default.png");
+        buttons[UP][1] =
+            Theme::getImageFromTheme("vscroll_up_pressed.png");
+        buttons[DOWN][1] =
+            Theme::getImageFromTheme("vscroll_down_pressed.png");
+        buttons[LEFT][1] =
+            Theme::getImageFromTheme("hscroll_left_pressed.png");
+        buttons[RIGHT][1] =
+            Theme::getImageFromTheme("hscroll_right_pressed.png");
+    }
+
+    instances++;
+}
+
+void ScrollArea::logic()
+{
+    if (!isVisible())
+        return;
+
+    gcn::ScrollArea::logic();
+    gcn::Widget *content = getContent();
+
+    // When no scrollbar in a certain direction, adapt content size to match
+    // the content dimension exactly.
+    if (content)
+    {
+        if (getHorizontalScrollPolicy() == gcn::ScrollArea::SHOW_NEVER)
+        {
+            content->setWidth(getChildrenArea().width -
+                    2 * content->getFrameSize());
+        }
+        if (getVerticalScrollPolicy() == gcn::ScrollArea::SHOW_NEVER)
+        {
+            content->setHeight(getChildrenArea().height -
+                    2 * content->getFrameSize());
+        }
+    }
+
+    if (mUpButtonPressed)
+    {
+        setVerticalScrollAmount(getVerticalScrollAmount() -
+                                mUpButtonScrollAmount);
+    }
+    else if (mDownButtonPressed)
+    {
+        setVerticalScrollAmount(getVerticalScrollAmount() +
+                                mDownButtonScrollAmount);
+    }
+    else if (mLeftButtonPressed)
+    {
+        setHorizontalScrollAmount(getHorizontalScrollAmount() -
+                                  mLeftButtonScrollAmount);
+    }
+    else if (mRightButtonPressed)
+    {
+        setHorizontalScrollAmount(getHorizontalScrollAmount() +
+                                  mRightButtonScrollAmount);
+    }
+}
+
+void ScrollArea::updateAlpha()
+{
+    float alpha = std::max(Client::getGuiAlpha(),
+                           Theme::instance()->getMinimumOpacity());
+
+    if (alpha != mAlpha)
+    {
+        mAlpha = alpha;
+        for (int a = 0; a < 9; a++)
+        {
+            if (background.grid[a])
+                background.grid[a]->setAlpha(mAlpha);
+            if (vMarker.grid[a])
+                vMarker.grid[a]->setAlpha(mAlpha);
+            if (vMarkerHi.grid[a])
+                vMarkerHi.grid[a]->setAlpha(mAlpha);
+        }
+    }
+}
+
+void ScrollArea::draw(gcn::Graphics *graphics)
+{
+    if (mVBarVisible)
+    {
+        drawUpButton(graphics);
+        drawDownButton(graphics);
+        drawVBar(graphics);
+        drawVMarker(graphics);
+    }
+
+    if (mHBarVisible)
+    {
+        drawLeftButton(graphics);
+        drawRightButton(graphics);
+        drawHBar(graphics);
+        drawHMarker(graphics);
+    }
+
+    if (mHBarVisible && mVBarVisible)
+    {
+        graphics->setColor(getBaseColor());
+        graphics->fillRectangle(gcn::Rectangle(getWidth() - mScrollbarWidth,
+                    getHeight() - mScrollbarWidth,
+                    mScrollbarWidth,
+                    mScrollbarWidth));
+    }
+
+    updateAlpha();
+
+    drawChildren(graphics);
+}
+
+void ScrollArea::drawFrame(gcn::Graphics *graphics)
+{
+    if (mOpaque)
+    {
+        const int bs = getFrameSize();
+        const int w = getWidth() + bs * 2;
+        const int h = getHeight() + bs * 2;
+
+        static_cast<Graphics*>(graphics)->
+            drawImageRect(0, 0, w, h, background);
+    }
+}
+
+void ScrollArea::setOpaque(bool opaque)
+{
+    mOpaque = opaque;
+    setFrameSize(mOpaque ? 2 : 0);
+}
+
+void ScrollArea::drawButton(gcn::Graphics *graphics, BUTTON_DIR dir)
+{
+    int state = 0;
+    gcn::Rectangle dim;
+
+    switch (dir)
+    {
+        case UP:
+            state = mUpButtonPressed ? 1 : 0;
+            dim = getUpButtonDimension();
+            break;
+        case DOWN:
+            state = mDownButtonPressed ? 1 : 0;
+            dim = getDownButtonDimension();
+            break;
+        case LEFT:
+            state = mLeftButtonPressed ? 1 : 0;
+            dim = getLeftButtonDimension();
+            break;
+        case RIGHT:
+            state = mRightButtonPressed ? 1 : 0;
+            dim = getRightButtonDimension();
+            break;
+        default:
+            logger->log("ScrollArea::drawButton unknown dir: "
+                        + toString(static_cast<unsigned>(dir)));
+            break;
+    }
+
+    if (buttons[dir][state])
+    {
+        static_cast<Graphics*>(graphics)->
+            drawImage(buttons[dir][state], dim.x, dim.y);
+    }
+}
+
+void ScrollArea::drawUpButton(gcn::Graphics *graphics)
+{
+    drawButton(graphics, UP);
+}
+
+void ScrollArea::drawDownButton(gcn::Graphics *graphics)
+{
+    drawButton(graphics, DOWN);
+}
+
+void ScrollArea::drawLeftButton(gcn::Graphics *graphics)
+{
+    drawButton(graphics, LEFT);
+}
+
+void ScrollArea::drawRightButton(gcn::Graphics *graphics)
+{
+    drawButton(graphics, RIGHT);
+}
+
+void ScrollArea::drawVBar(gcn::Graphics *graphics)
+{
+    const gcn::Rectangle dim = getVerticalBarDimension();
+    graphics->setColor(gcn::Color(0, 0, 0, 32));
+    graphics->fillRectangle(dim);
+    graphics->setColor(gcn::Color(255, 255, 255));
+}
+
+void ScrollArea::drawHBar(gcn::Graphics *graphics)
+{
+    const gcn::Rectangle dim = getHorizontalBarDimension();
+    graphics->setColor(gcn::Color(0, 0, 0, 32));
+    graphics->fillRectangle(dim);
+    graphics->setColor(gcn::Color(255, 255, 255));
+}
+
+void ScrollArea::drawVMarker(gcn::Graphics *graphics)
+{
+    gcn::Rectangle dim = getVerticalMarkerDimension();
+
+    if ((mHasMouse) && (mX > (getWidth() - getScrollbarWidth())))
+    {
+        static_cast<Graphics*>(graphics)->
+            drawImageRect(dim.x, dim.y, dim.width, dim.height, vMarkerHi);
+    }
+    else
+    {
+        static_cast<Graphics*>(graphics)->
+            drawImageRect(dim.x, dim.y, dim.width, dim.height, vMarker);
+    }
+}
+
+void ScrollArea::drawHMarker(gcn::Graphics *graphics)
+{
+    gcn::Rectangle dim = getHorizontalMarkerDimension();
+
+    if ((mHasMouse) && (mY > (getHeight() - getScrollbarWidth())))
+    {
+        static_cast<Graphics*>(graphics)->
+            drawImageRect(dim.x, dim.y, dim.width, dim.height, vMarkerHi);
+    }
+    else
+    {
+        static_cast<Graphics*>(graphics)->
+            drawImageRect(dim.x, dim.y, dim.width, dim.height, vMarker);
+    }
+}
+
+void ScrollArea::mouseMoved(gcn::MouseEvent& event)
+{
+    mX = event.getX();
+    mY = event.getY();
+}
+
+void ScrollArea::mouseEntered(gcn::MouseEvent& event _UNUSED_)
+{
+    mHasMouse = true;
+}
+
+void ScrollArea::mouseExited(gcn::MouseEvent& event _UNUSED_)
+{
+    mHasMouse = false;
+}
+
+void ScrollArea::widgetResized(const gcn::Event &event _UNUSED_)
+{
+    getContent()->setSize(getWidth() - 2 * getFrameSize(),
+                          getHeight() - 2 * getFrameSize());
+}