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authorAndrei Karas <akaras@inbox.ru>2011-05-30 20:09:31 +0300
committerAndrei Karas <akaras@inbox.ru>2011-05-30 20:09:31 +0300
commitfc7928bab206892653a5a7279b384f2bcd323ea4 (patch)
treef1373ab222c03dd2372a4d16d67ee1f1e348d55b /src/guichan/widgets/dropdown.cpp
parentd548e9bc6c987a4834ce3d65b33108f55e0f7a2c (diff)
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Add guichan files to automake
Diffstat (limited to 'src/guichan/widgets/dropdown.cpp')
-rw-r--r--src/guichan/widgets/dropdown.cpp635
1 files changed, 635 insertions, 0 deletions
diff --git a/src/guichan/widgets/dropdown.cpp b/src/guichan/widgets/dropdown.cpp
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+/* _______ __ __ __ ______ __ __ _______ __ __
+ * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
+ * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
+ * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name of Guichan nor the names of its contributors may
+ * be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "guichan/widgets/dropdown.hpp"
+
+#include "guichan/exception.hpp"
+#include "guichan/font.hpp"
+#include "guichan/graphics.hpp"
+#include "guichan/key.hpp"
+#include "guichan/listmodel.hpp"
+#include "guichan/mouseinput.hpp"
+#include "guichan/widgets/listbox.hpp"
+#include "guichan/widgets/scrollarea.hpp"
+
+namespace gcn
+{
+ DropDown::DropDown(ListModel *listModel,
+ ScrollArea *scrollArea,
+ ListBox *listBox)
+ {
+ setWidth(100);
+ setFocusable(true);
+ mDroppedDown = false;
+ mPushed = false;
+ mIsDragged = false;
+
+ setInternalFocusHandler(&mInternalFocusHandler);
+
+ mInternalScrollArea = (scrollArea == NULL);
+ mInternalListBox = (listBox == NULL);
+
+ if (mInternalScrollArea)
+ {
+ mScrollArea = new ScrollArea();
+ }
+ else
+ {
+ mScrollArea = scrollArea;
+ }
+
+ if (mInternalListBox)
+ {
+ mListBox = new ListBox();
+ }
+ else
+ {
+ mListBox = listBox;
+ }
+
+ mScrollArea->setContent(mListBox);
+ add(mScrollArea);
+
+ mListBox->addActionListener(this);
+ mListBox->addSelectionListener(this);
+
+ setListModel(listModel);
+
+ if (mListBox->getSelected() < 0)
+ {
+ mListBox->setSelected(0);
+ }
+
+ addMouseListener(this);
+ addKeyListener(this);
+ addFocusListener(this);
+
+ adjustHeight();
+ }
+
+ DropDown::~DropDown()
+ {
+ if (widgetExists(mListBox))
+ {
+ mListBox->removeActionListener(this);
+ mListBox->removeSelectionListener(this);
+ }
+
+ if (mInternalScrollArea)
+ {
+ delete mScrollArea;
+ }
+
+ if (mInternalListBox)
+ {
+ delete mListBox;
+ }
+
+ setInternalFocusHandler(NULL);
+ }
+
+ void DropDown::draw(Graphics* graphics)
+ {
+ int h;
+
+ if (mDroppedDown)
+ {
+ h = mFoldedUpHeight;
+ }
+ else
+ {
+ h = getHeight();
+ }
+
+ Color faceColor = getBaseColor();
+ Color highlightColor, shadowColor;
+ int alpha = getBaseColor().a;
+ highlightColor = faceColor + 0x303030;
+ highlightColor.a = alpha;
+ shadowColor = faceColor - 0x303030;
+ shadowColor.a = alpha;
+
+ // Draw a border.
+ graphics->setColor(shadowColor);
+ graphics->drawLine(0, 0, getWidth() - 1, 0);
+ graphics->drawLine(0, 1, 0, h - 2);
+ graphics->setColor(highlightColor);
+ graphics->drawLine(getWidth() - 1, 1, getWidth() - 1, h - 1);
+ graphics->drawLine(0, h - 1, getWidth() - 1, h - 1);
+
+ // Push a clip area so the other drawings don't need to worry
+ // about the border.
+ graphics->pushClipArea(Rectangle(1, 1, getWidth() - 2, h - 2));
+ const Rectangle currentClipArea = graphics->getCurrentClipArea();
+
+ graphics->setColor(getBackgroundColor());
+ graphics->fillRectangle(Rectangle(0, 0, currentClipArea.width, currentClipArea.height));
+
+ if (isFocused())
+ {
+ graphics->setColor(getSelectionColor());
+ graphics->fillRectangle(Rectangle(0,
+ 0,
+ currentClipArea.width - currentClipArea.height,
+ currentClipArea.height));
+ graphics->setColor(getForegroundColor());
+ }
+
+ if (mListBox->getListModel()
+ && mListBox->getSelected() >= 0)
+ {
+ graphics->setColor(getForegroundColor());
+ graphics->setFont(getFont());
+
+ graphics->drawText(mListBox->getListModel()->getElementAt(mListBox->getSelected()), 1, 0);
+ }
+
+ // Push a clip area before drawing the button.
+ graphics->pushClipArea(Rectangle(currentClipArea.width - currentClipArea.height,
+ 0,
+ currentClipArea.height,
+ currentClipArea.height));
+ drawButton(graphics);
+ graphics->popClipArea();
+ graphics->popClipArea();
+
+ if (mDroppedDown)
+ {
+ // Draw a border around the children.
+ graphics->setColor(shadowColor);
+ graphics->drawRectangle(Rectangle(0,
+ mFoldedUpHeight,
+ getWidth(),
+ getHeight() - mFoldedUpHeight));
+ drawChildren(graphics);
+ }
+ }
+
+ void DropDown::drawButton(Graphics *graphics)
+ {
+ Color faceColor, highlightColor, shadowColor;
+ int offset;
+ int alpha = getBaseColor().a;
+
+ if (mPushed)
+ {
+ faceColor = getBaseColor() - 0x303030;
+ faceColor.a = alpha;
+ highlightColor = faceColor - 0x303030;
+ highlightColor.a = alpha;
+ shadowColor = faceColor + 0x303030;
+ shadowColor.a = alpha;
+ offset = 1;
+ }
+ else
+ {
+ faceColor = getBaseColor();
+ faceColor.a = alpha;
+ highlightColor = faceColor + 0x303030;
+ highlightColor.a = alpha;
+ shadowColor = faceColor - 0x303030;
+ shadowColor.a = alpha;
+ offset = 0;
+ }
+
+ const Rectangle currentClipArea = graphics->getCurrentClipArea();
+ graphics->setColor(highlightColor);
+ graphics->drawLine(0,
+ 0,
+ currentClipArea.width - 1,
+ 0);
+ graphics->drawLine(0,
+ 1,
+ 0,
+ currentClipArea.height - 1);
+ graphics->setColor(shadowColor);
+ graphics->drawLine(currentClipArea.width - 1,
+ 1,
+ currentClipArea.width - 1,
+ currentClipArea.height - 1);
+ graphics->drawLine(1,
+ currentClipArea.height - 1,
+ currentClipArea.width - 2,
+ currentClipArea.height - 1);
+
+ graphics->setColor(faceColor);
+ graphics->fillRectangle(Rectangle(1,
+ 1,
+ currentClipArea.width - 2,
+ currentClipArea.height - 2));
+
+ graphics->setColor(getForegroundColor());
+
+ int i;
+ int n = currentClipArea.height / 3;
+ int dx = currentClipArea.height / 2;
+ int dy = (currentClipArea.height * 2) / 3;
+ for (i = 0; i < n; i++)
+ {
+ graphics->drawLine(dx - i + offset,
+ dy - i + offset,
+ dx + i + offset,
+ dy - i + offset);
+ }
+ }
+
+ int DropDown::getSelected() const
+ {
+ return mListBox->getSelected();
+ }
+
+ void DropDown::setSelected(int selected)
+ {
+ if (selected >= 0)
+ {
+ mListBox->setSelected(selected);
+ }
+ }
+
+ void DropDown::keyPressed(KeyEvent& keyEvent)
+ {
+ if (keyEvent.isConsumed())
+ return;
+
+ Key key = keyEvent.getKey();
+
+ if ((key.getValue() == Key::ENTER || key.getValue() == Key::SPACE)
+ && !mDroppedDown)
+ {
+ dropDown();
+ keyEvent.consume();
+ }
+ else if (key.getValue() == Key::UP)
+ {
+ setSelected(getSelected() - 1);
+ keyEvent.consume();
+ }
+ else if (key.getValue() == Key::DOWN)
+ {
+ setSelected(getSelected() + 1);
+ keyEvent.consume();
+ }
+ }
+
+ void DropDown::mousePressed(MouseEvent& mouseEvent)
+ {
+ // If we have a mouse press on the widget.
+ if (0 <= mouseEvent.getY()
+ && mouseEvent.getY() < getHeight()
+ && mouseEvent.getX() >= 0
+ && mouseEvent.getX() < getWidth()
+ && mouseEvent.getButton() == MouseEvent::LEFT
+ && !mDroppedDown
+ && mouseEvent.getSource() == this)
+ {
+ mPushed = true;
+ dropDown();
+ requestModalMouseInputFocus();
+ }
+ // Fold up the listbox if the upper part is clicked after fold down
+ else if (0 <= mouseEvent.getY()
+ && mouseEvent.getY() < mFoldedUpHeight
+ && mouseEvent.getX() >= 0
+ && mouseEvent.getX() < getWidth()
+ && mouseEvent.getButton() == MouseEvent::LEFT
+ && mDroppedDown
+ && mouseEvent.getSource() == this)
+ {
+ mPushed = false;
+ foldUp();
+ releaseModalMouseInputFocus();
+ }
+ // If we have a mouse press outside the widget
+ else if (0 > mouseEvent.getY()
+ || mouseEvent.getY() >= getHeight()
+ || mouseEvent.getX() < 0
+ || mouseEvent.getX() >= getWidth())
+ {
+ mPushed = false;
+ foldUp();
+ }
+ }
+
+ void DropDown::mouseReleased(MouseEvent& mouseEvent)
+ {
+ if (mIsDragged)
+ {
+ mPushed = false;
+ }
+
+ // Released outside of widget. Can happen when we have modal input focus.
+ if ((0 > mouseEvent.getY()
+ || mouseEvent.getY() >= getHeight()
+ || mouseEvent.getX() < 0
+ || mouseEvent.getX() >= getWidth())
+ && mouseEvent.getButton() == MouseEvent::LEFT
+ && isModalMouseInputFocused())
+ {
+ releaseModalMouseInputFocus();
+
+ if (mIsDragged)
+ {
+ foldUp();
+ }
+ }
+ else if (mouseEvent.getButton() == MouseEvent::LEFT)
+ {
+ mPushed = false;
+ }
+
+ mIsDragged = false;
+ }
+
+ void DropDown::mouseDragged(MouseEvent& mouseEvent)
+ {
+ mIsDragged = true;
+
+ mouseEvent.consume();
+ }
+
+ void DropDown::setListModel(ListModel *listModel)
+ {
+ mListBox->setListModel(listModel);
+
+ if (mListBox->getSelected() < 0)
+ {
+ mListBox->setSelected(0);
+ }
+
+ adjustHeight();
+ }
+
+ ListModel *DropDown::getListModel()
+ {
+ return mListBox->getListModel();
+ }
+
+ void DropDown::adjustHeight()
+ {
+ if (mScrollArea == NULL)
+ {
+ throw GCN_EXCEPTION("Scroll area has been deleted.");
+ }
+
+ if (mListBox == NULL)
+ {
+ throw GCN_EXCEPTION("List box has been deleted.");
+ }
+
+ int listBoxHeight = mListBox->getHeight();
+
+ // We add 2 for the border
+ int h2 = getFont()->getHeight() + 2;
+
+ setHeight(h2);
+
+ // The addition/subtraction of 2 compensates for the seperation lines
+ // seperating the selected element view and the scroll area.
+
+ if (mDroppedDown && getParent())
+ {
+ int h = getParent()->getChildrenArea().height - getY();
+
+ if (listBoxHeight > h - h2 - 2)
+ {
+ mScrollArea->setHeight(h - h2 - 2);
+ setHeight(h);
+ }
+ else
+ {
+ setHeight(listBoxHeight + h2 + 2);
+ mScrollArea->setHeight(listBoxHeight);
+ }
+ }
+
+ mScrollArea->setWidth(getWidth());
+ // Resize the ListBox to exactly fit the ScrollArea.
+ mListBox->setWidth(mScrollArea->getChildrenArea().width);
+ mScrollArea->setPosition(0, 0);
+ }
+
+ void DropDown::dropDown()
+ {
+ if (!mDroppedDown)
+ {
+ mDroppedDown = true;
+ mFoldedUpHeight = getHeight();
+ adjustHeight();
+
+ if (getParent())
+ {
+ getParent()->moveToTop(this);
+ }
+ }
+
+ mListBox->requestFocus();
+ }
+
+ void DropDown::foldUp()
+ {
+ if (mDroppedDown)
+ {
+ mDroppedDown = false;
+ adjustHeight();
+ mInternalFocusHandler.focusNone();
+ }
+ }
+
+ void DropDown::focusLost(const Event& event)
+ {
+ foldUp();
+ mInternalFocusHandler.focusNone();
+ }
+
+
+ void DropDown::death(const Event& event)
+ {
+ if (event.getSource() == mScrollArea)
+ {
+ mScrollArea = NULL;
+ }
+
+ BasicContainer::death(event);
+ }
+
+ void DropDown::action(const ActionEvent& actionEvent)
+ {
+ foldUp();
+ releaseModalMouseInputFocus();
+ distributeActionEvent();
+ }
+
+ Rectangle DropDown::getChildrenArea()
+ {
+ if (mDroppedDown)
+ {
+ // Calculate the children area (with the one pixel border in mind)
+ return Rectangle(1,
+ mFoldedUpHeight + 1,
+ getWidth() - 2,
+ getHeight() - mFoldedUpHeight - 2);
+ }
+
+ return Rectangle();
+ }
+
+ void DropDown::setBaseColor(const Color& color)
+ {
+ if (mInternalScrollArea)
+ {
+ mScrollArea->setBaseColor(color);
+ }
+
+ if (mInternalListBox)
+ {
+ mListBox->setBaseColor(color);
+ }
+
+ Widget::setBaseColor(color);
+ }
+
+ void DropDown::setBackgroundColor(const Color& color)
+ {
+ if (mInternalScrollArea)
+ {
+ mScrollArea->setBackgroundColor(color);
+ }
+
+ if (mInternalListBox)
+ {
+ mListBox->setBackgroundColor(color);
+ }
+
+ Widget::setBackgroundColor(color);
+ }
+
+ void DropDown::setForegroundColor(const Color& color)
+ {
+ if (mInternalScrollArea)
+ {
+ mScrollArea->setForegroundColor(color);
+ }
+
+ if (mInternalListBox)
+ {
+ mListBox->setForegroundColor(color);
+ }
+
+ Widget::setForegroundColor(color);
+ }
+
+ void DropDown::setFont(Font *font)
+ {
+ if (mInternalScrollArea)
+ {
+ mScrollArea->setFont(font);
+ }
+
+ if (mInternalListBox)
+ {
+ mListBox->setFont(font);
+ }
+
+ Widget::setFont(font);
+ }
+
+ void DropDown::mouseWheelMovedUp(MouseEvent& mouseEvent)
+ {
+ if (isFocused() && mouseEvent.getSource() == this)
+ {
+ mouseEvent.consume();
+
+ if (mListBox->getSelected() > 0)
+ {
+ mListBox->setSelected(mListBox->getSelected() - 1);
+ }
+ }
+ }
+
+ void DropDown::mouseWheelMovedDown(MouseEvent& mouseEvent)
+ {
+ if (isFocused() && mouseEvent.getSource() == this)
+ {
+ mouseEvent.consume();
+
+ mListBox->setSelected(mListBox->getSelected() + 1);
+ }
+ }
+
+ void DropDown::setSelectionColor(const Color& color)
+ {
+ Widget::setSelectionColor(color);
+
+ if (mInternalListBox)
+ {
+ mListBox->setSelectionColor(color);
+ }
+ }
+
+ void DropDown::valueChanged(const SelectionEvent& event)
+ {
+ distributeValueChangedEvent();
+ }
+
+ void DropDown::addSelectionListener(SelectionListener* selectionListener)
+ {
+ mSelectionListeners.push_back(selectionListener);
+ }
+
+ void DropDown::removeSelectionListener(SelectionListener* selectionListener)
+ {
+ mSelectionListeners.remove(selectionListener);
+ }
+
+ void DropDown::distributeValueChangedEvent()
+ {
+ SelectionListenerIterator iter;
+
+ for (iter = mSelectionListeners.begin(); iter != mSelectionListeners.end(); ++iter)
+ {
+ SelectionEvent event(this);
+ (*iter)->valueChanged(event);
+ }
+ }
+}
+