forked from openkylin/kolourpaint
138 lines
3.9 KiB
C++
138 lines
3.9 KiB
C++
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/*
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Copyright (c) 2003-2007 Clarence Dang <dang@kde.org>
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define DEBUG_KP_TOOL_COLOR_PICKER 0
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#include "kpToolColorPicker.h"
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#include "kpLogCategories.h"
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#include "widgets/toolbars/kpColorToolBar.h"
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#include "commands/kpCommandHistory.h"
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#include "kpDefs.h"
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#include "document/kpDocument.h"
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#include "pixmapfx/kpPixmapFX.h"
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#include "commands/tools/kpToolColorPickerCommand.h"
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#include "environments/tools/kpToolEnvironment.h"
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#include <KLocalizedString>
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kpToolColorPicker::kpToolColorPicker (kpToolEnvironment *environ, QObject *parent)
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: kpTool (i18n ("Color Picker"), i18n ("Lets you select a color from the image"),
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Qt::Key_C,
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environ, parent, QStringLiteral("tool_color_picker"))
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{
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}
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kpToolColorPicker::~kpToolColorPicker () = default;
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// private
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kpColor kpToolColorPicker::colorAtPixel (const QPoint &p)
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{
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#if DEBUG_KP_TOOL_COLOR_PICKER && 0
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qCDebug(kpLogTools) << "kpToolColorPicker::colorAtPixel" << p;
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#endif
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return kpPixmapFX::getColorAtPixel (document ()->image (), p);
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}
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// private
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QString kpToolColorPicker::haventBegunDrawUserMessage () const
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{
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return i18n ("Click to select a color.");
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}
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// public virtual [base kpTool]
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void kpToolColorPicker::begin ()
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{
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setUserMessage (haventBegunDrawUserMessage ());
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}
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// public virtual [base kpTool]
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void kpToolColorPicker::beginDraw ()
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{
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m_oldColor = color (mouseButton ());
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setUserMessage (cancelUserMessage ());
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}
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// public virtual [base kpTool]
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void kpToolColorPicker::draw (const QPoint &thisPoint, const QPoint &, const QRect &)
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{
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const kpColor color = colorAtPixel (thisPoint);
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if (color.isValid ())
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{
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environ ()->setColor (mouseButton (), color);
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setUserShapePoints (thisPoint);
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}
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else
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{
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environ ()->setColor (mouseButton (), m_oldColor);
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setUserShapePoints ();
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}
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}
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// public virtual [base kpTool]
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void kpToolColorPicker::cancelShape ()
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{
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environ ()->setColor (mouseButton (), m_oldColor);
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setUserMessage (i18n ("Let go of all the mouse buttons."));
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}
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// public virtual [base kpTool]
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void kpToolColorPicker::releasedAllButtons ()
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{
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setUserMessage (haventBegunDrawUserMessage ());
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}
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// public virtual [base kpTool]
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void kpToolColorPicker::endDraw (const QPoint &thisPoint, const QRect &)
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{
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const kpColor color = colorAtPixel (thisPoint);
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if (color.isValid ())
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{
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auto *cmd = new kpToolColorPickerCommand ( mouseButton (), color, m_oldColor,
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environ ()->commandEnvironment ());
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environ ()->commandHistory ()->addCommand (cmd, false/*no exec*/);
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setUserMessage (haventBegunDrawUserMessage ());
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}
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else
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{
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cancelShape ();
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}
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}
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