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Adding cursors for different mouse modes
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John Harwell
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Apr 6, 2012
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| Use a PNG image and place the image in the directory src/Desktop/images directory. In the same directory, edit the file resources.qrc and add the image. | ||
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| In the code, to load the image, use one of the "load" methods in WuQtUtilities. | ||
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| In the load methods, prefix the file name with ":/" which tells Qt that the image should be loaded from resources. | ||
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| Delete Desktop from your build directory, rerun cmake, and then build. This step must be done after images.qrc has been edited or touched. |
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| /*LICENSE_START*/ | ||
| /* | ||
| * Copyright 2012 Washington University, | ||
| * All rights reserved. | ||
| * | ||
| * Connectome DB and Connectome Workbench are part of the integrated Connectome | ||
| * Informatics Platform. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are met: | ||
| * * Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * * 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. | ||
| * * Neither the names of Washington University 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 HOLDER 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. | ||
| */ | ||
| /*LICENSE_END*/ | ||
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| #include <QPixmap> | ||
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| #define __CURSOR_MANAGER_DECLARE__ | ||
| #include "CursorManager.h" | ||
| #undef __CURSOR_MANAGER_DECLARE__ | ||
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| #include "WuQtUtilities.h" | ||
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| using namespace caret; | ||
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| /** | ||
| * \class caret::CursorManager | ||
| * \brief Manages cursors | ||
| * | ||
| * Provides cursors, some predefined by Qt and | ||
| * others unique to workbench. | ||
| */ | ||
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| /** | ||
| * Constructor. | ||
| */ | ||
| CursorManager::CursorManager() | ||
| : CaretObject() | ||
| { | ||
| this->defaultCursor = QCursor(); | ||
| this->penCursor = this->loadCursor(":/cursor_pen_eraser_32x32.png", | ||
| 6, | ||
| 32 - 7, | ||
| Qt::UpArrowCursor); | ||
| this->pointingHandCursor = QCursor(Qt::PointingHandCursor); | ||
| this->waitCursor = QCursor(Qt::WaitCursor); | ||
| } | ||
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| /** | ||
| * Destructor. | ||
| */ | ||
| CursorManager::~CursorManager() | ||
| { | ||
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| } | ||
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| /** | ||
| * Load an image and create a cursor using the image. | ||
| * | ||
| * @param filename | ||
| * Name of file containing the image. | ||
| * @param hotSpotX | ||
| * Hot spot (location in cursor reported to GUI) | ||
| * @param hotSpotY | ||
| * Hot spot (location in cursor reported to GUI) | ||
| * @param cursorShapeIfImageLoadingFails | ||
| * Cursor shape used if loading the image fails. | ||
| * @return | ||
| * Cursor that was created. | ||
| */ | ||
| QCursor | ||
| CursorManager::loadCursor(const QString& filename, | ||
| const int hotSpotX, | ||
| const int hotSpotY, | ||
| const Qt::CursorShape& cursorShapeIfImageLoadingFails) const | ||
| { | ||
| QPixmap cursorPixmap; | ||
| if (WuQtUtilities::loadPixmap(filename, cursorPixmap)) { | ||
| QCursor cursor(cursorPixmap, | ||
| hotSpotX, | ||
| hotSpotY); | ||
| return cursor; | ||
| } | ||
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| return QCursor(cursorShapeIfImageLoadingFails); | ||
| } | ||
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| /** | ||
| * @return The default cursor. | ||
| */ | ||
| const QCursor& | ||
| CursorManager::getDefaultCursor() const | ||
| { | ||
| return this->defaultCursor; | ||
| } | ||
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| /** | ||
| * @return The pen cursor. | ||
| */ | ||
| const QCursor& | ||
| CursorManager::getPenCursor() const | ||
| { | ||
| return this->penCursor; | ||
| } | ||
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| /** | ||
| * @return The pointing hand cursor. | ||
| */ | ||
| const QCursor& | ||
| CursorManager::getPointingHandCursor() const | ||
| { | ||
| return this->pointingHandCursor; | ||
| } | ||
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| /** | ||
| * @return The wait cursor. | ||
| */ | ||
| const QCursor& | ||
| CursorManager::getWaitCursor() const | ||
| { | ||
| return this->waitCursor; | ||
| } | ||
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