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author | Andrei Karas <akaras@inbox.ru> | 2011-05-30 20:09:31 +0300 |
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committer | Andrei Karas <akaras@inbox.ru> | 2011-05-30 20:09:31 +0300 |
commit | fc7928bab206892653a5a7279b384f2bcd323ea4 (patch) | |
tree | f1373ab222c03dd2372a4d16d67ee1f1e348d55b /src/guichan/focushandler.cpp | |
parent | d548e9bc6c987a4834ce3d65b33108f55e0f7a2c (diff) | |
download | mv-fc7928bab206892653a5a7279b384f2bcd323ea4.tar.gz mv-fc7928bab206892653a5a7279b384f2bcd323ea4.tar.bz2 mv-fc7928bab206892653a5a7279b384f2bcd323ea4.tar.xz mv-fc7928bab206892653a5a7279b384f2bcd323ea4.zip |
Add guichan files to automake
Diffstat (limited to 'src/guichan/focushandler.cpp')
-rw-r--r-- | src/guichan/focushandler.cpp | 587 |
1 files changed, 587 insertions, 0 deletions
diff --git a/src/guichan/focushandler.cpp b/src/guichan/focushandler.cpp new file mode 100644 index 000000000..069a72857 --- /dev/null +++ b/src/guichan/focushandler.cpp @@ -0,0 +1,587 @@ +/* _______ __ __ __ ______ __ __ _______ __ __ + * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ + * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / + * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / + * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / + * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / + * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ + * + * Copyright (c) 2004 - 2008 Olof Naess�n and Per Larsson + * + * + * Per Larsson a.k.a finalman + * Olof Naess�n 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/focushandler.hpp" + +#include "guichan/focuslistener.hpp" +#include "guichan/exception.hpp" +#include "guichan/widget.hpp" + +namespace gcn +{ + FocusHandler::FocusHandler() + :mFocusedWidget(NULL), + mModalFocusedWidget(NULL), + mModalMouseInputFocusedWidget(NULL), + mDraggedWidget(NULL), + mLastWidgetWithMouse(NULL), + mLastWidgetWithModalFocus(NULL), + mLastWidgetWithModalMouseInputFocus(NULL), + mLastWidgetPressed(NULL) + { + + } + + void FocusHandler::requestFocus(Widget* widget) + { + if (widget == NULL + || widget == mFocusedWidget) + { + return; + } + + unsigned int i = 0; + int toBeFocusedIndex = -1; + for (i = 0; i < mWidgets.size(); ++i) + { + if (mWidgets[i] == widget) + { + toBeFocusedIndex = i; + break; + } + } + + if (toBeFocusedIndex < 0) + { + throw GCN_EXCEPTION("Trying to focus a none existing widget."); + } + + Widget *oldFocused = mFocusedWidget; + + if (oldFocused != widget) + { + mFocusedWidget = mWidgets.at(toBeFocusedIndex); + + if (oldFocused != NULL) + { + Event focusEvent(oldFocused); + distributeFocusLostEvent(focusEvent); + } + + Event focusEvent(mWidgets.at(toBeFocusedIndex)); + distributeFocusGainedEvent(focusEvent); + } + } + + void FocusHandler::requestModalFocus(Widget* widget) + { + if (mModalFocusedWidget != NULL && mModalFocusedWidget != widget) + { + throw GCN_EXCEPTION("Another widget already has modal focus."); + } + + mModalFocusedWidget = widget; + + if (mFocusedWidget != NULL + && !mFocusedWidget->isModalFocused()) + { + focusNone(); + } + } + + void FocusHandler::requestModalMouseInputFocus(Widget* widget) + { + if (mModalMouseInputFocusedWidget != NULL + && mModalMouseInputFocusedWidget != widget) + { + throw GCN_EXCEPTION("Another widget already has modal input focus."); + } + + mModalMouseInputFocusedWidget = widget; + } + + void FocusHandler::releaseModalFocus(Widget* widget) + { + if (mModalFocusedWidget == widget) + { + mModalFocusedWidget = NULL; + } + } + + void FocusHandler::releaseModalMouseInputFocus(Widget* widget) + { + if (mModalMouseInputFocusedWidget == widget) + { + mModalMouseInputFocusedWidget = NULL; + } + } + + Widget* FocusHandler::getFocused() const + { + return mFocusedWidget; + } + + Widget* FocusHandler::getModalFocused() const + { + return mModalFocusedWidget; + } + + Widget* FocusHandler::getModalMouseInputFocused() const + { + return mModalMouseInputFocusedWidget; + } + + void FocusHandler::focusNext() + { + int i; + int focusedWidget = -1; + for (i = 0; i < (int)mWidgets.size(); ++i) + { + if (mWidgets[i] == mFocusedWidget) + { + focusedWidget = i; + } + } + int focused = focusedWidget; + + // i is a counter that ensures that the following loop + // won't get stuck in an infinite loop + i = (int)mWidgets.size(); + do + { + ++focusedWidget; + + if (i==0) + { + focusedWidget = -1; + break; + } + + --i; + + if (focusedWidget >= (int)mWidgets.size()) + { + focusedWidget = 0; + } + + if (focusedWidget == focused) + { + return; + } + } + while (!mWidgets.at(focusedWidget)->isFocusable()); + + if (focusedWidget >= 0) + { + mFocusedWidget = mWidgets.at(focusedWidget); + + Event focusEvent(mFocusedWidget); + distributeFocusGainedEvent(focusEvent); + } + + if (focused >= 0) + { + Event focusEvent(mWidgets.at(focused)); + distributeFocusLostEvent(focusEvent); + } + } + + void FocusHandler::focusPrevious() + { + if (mWidgets.size() == 0) + { + mFocusedWidget = NULL; + return; + } + + int i; + int focusedWidget = -1; + for (i = 0; i < (int)mWidgets.size(); ++i) + { + if (mWidgets[i] == mFocusedWidget) + { + focusedWidget = i; + } + } + int focused = focusedWidget; + + // i is a counter that ensures that the following loop + // won't get stuck in an infinite loop + i = (int)mWidgets.size(); + do + { + --focusedWidget; + + if (i==0) + { + focusedWidget = -1; + break; + } + + --i; + + if (focusedWidget <= 0) + { + focusedWidget = mWidgets.size() - 1; + } + + if (focusedWidget == focused) + { + return; + } + } + while (!mWidgets.at(focusedWidget)->isFocusable()); + + if (focusedWidget >= 0) + { + mFocusedWidget = mWidgets.at(focusedWidget); + Event focusEvent(mFocusedWidget); + distributeFocusGainedEvent(focusEvent); + } + + if (focused >= 0) + { + Event focusEvent(mWidgets.at(focused)); + distributeFocusLostEvent(focusEvent); + } + } + + bool FocusHandler::isFocused(const Widget* widget) const + { + return mFocusedWidget == widget; + } + + void FocusHandler::add(Widget* widget) + { + mWidgets.push_back(widget); + } + + void FocusHandler::remove(Widget* widget) + { + if (isFocused(widget)) + { + mFocusedWidget = NULL; + } + + WidgetIterator iter; + + for (iter = mWidgets.begin(); iter != mWidgets.end(); ++iter) + { + if ((*iter) == widget) + { + mWidgets.erase(iter); + break; + } + } + + if (mDraggedWidget == widget) + { + mDraggedWidget = NULL; + return; + } + + if (mLastWidgetWithMouse == widget) + { + mLastWidgetWithMouse = NULL; + return; + } + + if (mLastWidgetWithModalFocus == widget) + { + mLastWidgetWithModalFocus = NULL; + return; + } + + if (mLastWidgetWithModalMouseInputFocus == widget) + { + mLastWidgetWithModalMouseInputFocus = NULL; + return; + } + + if (mLastWidgetPressed == widget) + { + mLastWidgetPressed = NULL; + return; + } + } + + void FocusHandler::focusNone() + { + if (mFocusedWidget != NULL) + { + Widget* focused = mFocusedWidget; + mFocusedWidget = NULL; + + Event focusEvent(focused); + distributeFocusLostEvent(focusEvent); + } + } + + void FocusHandler::tabNext() + { + if (mFocusedWidget != NULL) + { + if (!mFocusedWidget->isTabOutEnabled()) + { + return; + } + } + + if (mWidgets.size() == 0) + { + mFocusedWidget = NULL; + return; + } + + int i; + int focusedWidget = -1; + for (i = 0; i < (int)mWidgets.size(); ++i) + { + if (mWidgets[i] == mFocusedWidget) + { + focusedWidget = i; + } + } + int focused = focusedWidget; + bool done = false; + + // i is a counter that ensures that the following loop + // won't get stuck in an infinite loop + i = (int)mWidgets.size(); + do + { + ++focusedWidget; + + if (i==0) + { + focusedWidget = -1; + break; + } + + --i; + + if (focusedWidget >= (int)mWidgets.size()) + { + focusedWidget = 0; + } + + if (focusedWidget == focused) + { + return; + } + + if (mWidgets.at(focusedWidget)->isFocusable() && + mWidgets.at(focusedWidget)->isTabInEnabled() && + (mModalFocusedWidget == NULL || + mWidgets.at(focusedWidget)->isModalFocused())) + { + done = true; + } + } + while (!done); + + if (focusedWidget >= 0) + { + mFocusedWidget = mWidgets.at(focusedWidget); + Event focusEvent(mFocusedWidget); + distributeFocusGainedEvent(focusEvent); + } + + if (focused >= 0) + { + Event focusEvent(mWidgets.at(focused)); + distributeFocusLostEvent(focusEvent); + } + } + + void FocusHandler::tabPrevious() + { + if (mFocusedWidget != NULL) + { + if (!mFocusedWidget->isTabOutEnabled()) + { + return; + } + } + + if (mWidgets.size() == 0) + { + mFocusedWidget = NULL; + return; + } + + int i; + int focusedWidget = -1; + for (i = 0; i < (int)mWidgets.size(); ++i) + { + if (mWidgets[i] == mFocusedWidget) + { + focusedWidget = i; + } + } + int focused = focusedWidget; + bool done = false; + + // i is a counter that ensures that the following loop + // won't get stuck in an infinite loop + i = (int)mWidgets.size(); + do + { + --focusedWidget; + + if (i==0) + { + focusedWidget = -1; + break; + } + + --i; + + if (focusedWidget <= 0) + { + focusedWidget = mWidgets.size() - 1; + } + + if (focusedWidget == focused) + { + return; + } + + if (mWidgets.at(focusedWidget)->isFocusable() && + mWidgets.at(focusedWidget)->isTabInEnabled() && + (mModalFocusedWidget == NULL || + mWidgets.at(focusedWidget)->isModalFocused())) + { + done = true; + } + } + while (!done); + + if (focusedWidget >= 0) + { + mFocusedWidget = mWidgets.at(focusedWidget); + Event focusEvent(mFocusedWidget); + distributeFocusGainedEvent(focusEvent); + } + + if (focused >= 0) + { + Event focusEvent(mWidgets.at(focused)); + distributeFocusLostEvent(focusEvent); + } + } + + void FocusHandler::distributeFocusLostEvent(const Event& focusEvent) + { + Widget* sourceWidget = focusEvent.getSource(); + + std::list<FocusListener*> focusListeners = sourceWidget->_getFocusListeners(); + + // Send the event to all focus listeners of the widget. + for (std::list<FocusListener*>::iterator it = focusListeners.begin(); + it != focusListeners.end(); + ++it) + { + (*it)->focusLost(focusEvent); + } + } + + void FocusHandler::distributeFocusGainedEvent(const Event& focusEvent) + { + Widget* sourceWidget = focusEvent.getSource(); + + std::list<FocusListener*> focusListeners = sourceWidget->_getFocusListeners(); + + // Send the event to all focus listeners of the widget. + for (std::list<FocusListener*>::iterator it = focusListeners.begin(); + it != focusListeners.end(); + ++it) + { + (*it)->focusGained(focusEvent); + } + } + + Widget* FocusHandler::getDraggedWidget() + { + return mDraggedWidget; + } + + void FocusHandler::setDraggedWidget(Widget* draggedWidget) + { + mDraggedWidget = draggedWidget; + } + + Widget* FocusHandler::getLastWidgetWithMouse() + { + return mLastWidgetWithMouse; + } + + void FocusHandler::setLastWidgetWithMouse(Widget* lastWidgetWithMouse) + { + mLastWidgetWithMouse = lastWidgetWithMouse; + } + + Widget* FocusHandler::getLastWidgetWithModalFocus() + { + return mLastWidgetWithModalFocus; + } + + void FocusHandler::setLastWidgetWithModalFocus(Widget* lastWidgetWithModalFocus) + { + mLastWidgetWithModalFocus = lastWidgetWithModalFocus; + } + + Widget* FocusHandler::getLastWidgetWithModalMouseInputFocus() + { + return mLastWidgetWithModalMouseInputFocus; + } + + void FocusHandler::setLastWidgetWithModalMouseInputFocus(Widget* lastWidgetWithModalMouseInputFocus) + { + mLastWidgetWithModalMouseInputFocus = lastWidgetWithModalMouseInputFocus; + } + + Widget* FocusHandler::getLastWidgetPressed() + { + return mLastWidgetPressed; + } + + void FocusHandler::setLastWidgetPressed(Widget* lastWidgetPressed) + { + mLastWidgetPressed = lastWidgetPressed; + } +} |