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Diffstat (limited to 'src/guichan/widgets/button.cpp')
| -rw-r--r-- | src/guichan/widgets/button.cpp | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/src/guichan/widgets/button.cpp b/src/guichan/widgets/button.cpp new file mode 100644 index 000000000..199f5c96e --- /dev/null +++ b/src/guichan/widgets/button.cpp @@ -0,0 +1,284 @@ +/* _______ __ __ __ ______ __ __ _______ __ __ + * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ + * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / + * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / + * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / + * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / + * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ + * + * 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. + */ + +/* + * For comments regarding functions please see the header file. + */ + +#include "guichan/widgets/button.hpp" + +#include "guichan/exception.hpp" +#include "guichan/font.hpp" +#include "guichan/graphics.hpp" +#include "guichan/key.hpp" +#include "guichan/mouseevent.hpp" +#include "guichan/mouseinput.hpp" + +namespace gcn +{ + Button::Button() + : mHasMouse(false), + mKeyPressed(false), + mMousePressed(false), + mAlignment(Graphics::CENTER), + mSpacing(4) + { + setFocusable(true); + adjustSize(); + setFrameSize(1); + + addMouseListener(this); + addKeyListener(this); + addFocusListener(this); + } + + Button::Button(const std::string& caption) + : mCaption(caption), + mHasMouse(false), + mKeyPressed(false), + mMousePressed(false), + mAlignment(Graphics::CENTER), + mSpacing(4) + { + setFocusable(true); + adjustSize(); + setFrameSize(1); + + addMouseListener(this); + addKeyListener(this); + addFocusListener(this); + } + + void Button::setCaption(const std::string& caption) + { + mCaption = caption; + } + + const std::string& Button::getCaption() const + { + return mCaption; + } + + void Button::setAlignment(Graphics::Alignment alignment) + { + mAlignment = alignment; + } + + Graphics::Alignment Button::getAlignment() const + { + return mAlignment; + } + + void Button::setSpacing(unsigned int spacing) + { + mSpacing = spacing; + } + + unsigned int Button::getSpacing() const + { + return mSpacing; + } + + void Button::draw(Graphics* graphics) + { + Color faceColor = getBaseColor(); + Color highlightColor, shadowColor; + int alpha = getBaseColor().a; + + if (isPressed()) + { + faceColor = faceColor - 0x303030; + faceColor.a = alpha; + highlightColor = faceColor - 0x303030; + highlightColor.a = alpha; + shadowColor = faceColor + 0x303030; + shadowColor.a = alpha; + } + else + { + highlightColor = faceColor + 0x303030; + highlightColor.a = alpha; + shadowColor = faceColor - 0x303030; + shadowColor.a = alpha; + } + + graphics->setColor(faceColor); + graphics->fillRectangle(Rectangle(1, 1, getDimension().width-1, getHeight() - 1)); + + graphics->setColor(highlightColor); + graphics->drawLine(0, 0, getWidth() - 1, 0); + graphics->drawLine(0, 1, 0, getHeight() - 1); + + graphics->setColor(shadowColor); + graphics->drawLine(getWidth() - 1, 1, getWidth() - 1, getHeight() - 1); + graphics->drawLine(1, getHeight() - 1, getWidth() - 1, getHeight() - 1); + + graphics->setColor(getForegroundColor()); + + int textX; + int textY = getHeight() / 2 - getFont()->getHeight() / 2; + + switch (getAlignment()) + { + case Graphics::LEFT: + textX = mSpacing; + break; + case Graphics::CENTER: + textX = getWidth() / 2; + break; + case Graphics::RIGHT: + textX = getWidth() - mSpacing; + break; + default: + throw GCN_EXCEPTION("Unknown alignment."); + } + + graphics->setFont(getFont()); + + if (isPressed()) + { + graphics->drawText(getCaption(), textX + 1, textY + 1, getAlignment()); + } + else + { + graphics->drawText(getCaption(), textX, textY, getAlignment()); + + if (isFocused()) + { + graphics->drawRectangle(Rectangle(2, 2, getWidth() - 4, + getHeight() - 4)); + } + } + } + + void Button::adjustSize() + { + setWidth(getFont()->getWidth(mCaption) + 2*mSpacing); + setHeight(getFont()->getHeight() + 2*mSpacing); + } + + bool Button::isPressed() const + { + if (mMousePressed) + { + return mHasMouse; + } + else + { + return mKeyPressed; + } + } + + void Button::mousePressed(MouseEvent& mouseEvent) + { + if (mouseEvent.getButton() == MouseEvent::LEFT) + { + mMousePressed = true; + mouseEvent.consume(); + } + } + + void Button::mouseExited(MouseEvent& mouseEvent) + { + mHasMouse = false; + } + + void Button::mouseEntered(MouseEvent& mouseEvent) + { + mHasMouse = true; + } + + void Button::mouseReleased(MouseEvent& mouseEvent) + { + if (mouseEvent.getButton() == MouseEvent::LEFT + && mMousePressed + && mHasMouse) + { + mMousePressed = false; + distributeActionEvent(); + mouseEvent.consume(); + } + else if (mouseEvent.getButton() == MouseEvent::LEFT) + { + mMousePressed = false; + mouseEvent.consume(); + } + } + + void Button::mouseDragged(MouseEvent& mouseEvent) + { + mouseEvent.consume(); + } + + void Button::keyPressed(KeyEvent& keyEvent) + { + Key key = keyEvent.getKey(); + + if (key.getValue() == Key::ENTER + || key.getValue() == Key::SPACE) + { + mKeyPressed = true; + keyEvent.consume(); + } + } + + void Button::keyReleased(KeyEvent& keyEvent) + { + Key key = keyEvent.getKey(); + + if ((key.getValue() == Key::ENTER + || key.getValue() == Key::SPACE) + && mKeyPressed) + { + mKeyPressed = false; + distributeActionEvent(); + keyEvent.consume(); + } + } + + void Button::focusLost(const Event& event) + { + mMousePressed = false; + mKeyPressed = false; + } +} |