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639 lines
19 KiB
639 lines
19 KiB
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/*
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Copyright (c) 2003,2004,2005 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_RECTANGLE 0
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#include <tqbitmap.h>
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#include <tqcursor.h>
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#include <tqevent.h>
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#include <tqpainter.h>
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#include <kdebug.h>
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#include <tdelocale.h>
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#include <kpcolor.h>
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#include <kpcommandhistory.h>
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#include <kpdefs.h>
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#include <kpdocument.h>
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#include <kpmainwindow.h>
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#include <kppixmapfx.h>
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#include <kptemppixmap.h>
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#include <kptoolrectangle.h>
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#include <kptooltoolbar.h>
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#include <kptoolwidgetfillstyle.h>
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#include <kptoolwidgetlinewidth.h>
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#include <kpview.h>
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#include <kpviewmanager.h>
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static TQPixmap pixmap (const kpToolRectangle::Mode mode,
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kpDocument *document, const TQRect &rect,
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const TQPoint &startPoint, const TQPoint &endPoint,
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const TQPen &pen, const TQPen &maskPen,
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const TQBrush &brush, const TQBrush &maskBrush)
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{
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TQPixmap pixmap = document->getPixmapAt (rect);
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TQBitmap maskBitmap;
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TQPainter painter, maskPainter;
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#if DEBUG_KP_TOOL_RECTANGLE && 1
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kdDebug () << "pixmap: rect=" << rect
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<< " startPoint=" << startPoint
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<< " endPoint=" << endPoint
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<< endl;
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kdDebug () << "\tm: p=" << (maskPen.style () != TQt::NoPen)
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<< " b=" << (maskBrush.style () != TQt::NoBrush)
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<< " o: p=" << (pen.style () != TQt::NoPen)
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<< " b=" << (brush.style () != TQt::NoBrush)
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<< endl;
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kdDebug () << "\tmaskPen.color()=" << (int *) maskPen.color ().rgb ()
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<< " transparent=" << (int *) TQt::color0.rgb ()/*transparent*/
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<< endl;
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#endif
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if (pixmap.mask () ||
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(maskPen.style () != TQt::NoPen &&
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maskPen.color () == TQt::color0/*transparent*/) ||
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(maskBrush.style () != TQt::NoBrush &&
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maskBrush.color () == TQt::color0/*transparent*/))
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{
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maskBitmap = kpPixmapFX::getNonNullMask (pixmap);
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maskPainter.begin (&maskBitmap);
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maskPainter.setPen (maskPen);
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maskPainter.setBrush (maskBrush);
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}
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if (pen.style () != TQt::NoPen ||
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brush.style () != TQt::NoBrush)
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{
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painter.begin (&pixmap);
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painter.setPen (pen);
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painter.setBrush (brush);
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}
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#define PAINTER_CALL(cmd) \
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{ \
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if (painter.isActive ()) \
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painter . cmd ; \
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\
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if (maskPainter.isActive ()) \
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maskPainter . cmd ; \
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}
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if (startPoint != endPoint)
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{
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#if DEBUG_KP_TOOL_RECTANGLE && 1
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kdDebug () << "\tdraw shape" << endl;
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#endif
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// TODO: Rectangle of pen width 1, height 1 and width X is rendered
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// as width X - 1.
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switch (mode)
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{
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case kpToolRectangle::Rectangle:
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PAINTER_CALL (drawRect (TQRect (startPoint - rect.topLeft (), endPoint - rect.topLeft ())));
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break;
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case kpToolRectangle::RoundedRectangle:
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PAINTER_CALL (drawRoundRect (TQRect (startPoint - rect.topLeft (), endPoint - rect.topLeft ())));
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break;
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case kpToolRectangle::Ellipse:
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PAINTER_CALL (drawEllipse (TQRect (startPoint - rect.topLeft (), endPoint - rect.topLeft ())));
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break;
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default:
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kdError () << "kptoolrectangle.cpp::pixmap() passed unknown mode: " << int (mode) << endl;
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break;
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}
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}
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else
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{
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#if DEBUG_KP_TOOL_RECTANGLE && 1
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kdDebug () << "\tstartPoint == endPoint" << endl;
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#endif
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// SYNC: Work around TQt bug: can't draw 1x1 rectangle
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// Not strictly correct for border width > 1
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// but better than not drawing at all
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PAINTER_CALL (drawPoint (startPoint - rect.topLeft ()));
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}
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#undef PAINTER_CALL
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if (painter.isActive ())
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painter.end ();
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if (maskPainter.isActive ())
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maskPainter.end ();
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if (!maskBitmap.isNull ())
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pixmap.setMask (maskBitmap);
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return pixmap;
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}
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/*
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* kpToolRectangle
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*/
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kpToolRectangle::kpToolRectangle (Mode mode,
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const TQString &text,
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const TQString &description,
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int key,
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kpMainWindow *mainWindow,
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const char *name)
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: kpTool (text, description, key, mainWindow, name),
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m_mode (mode),
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m_toolWidgetLineWidth (0),
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m_toolWidgetFillStyle (0)
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{
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}
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kpToolRectangle::kpToolRectangle (kpMainWindow *mainWindow)
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: kpTool (i18n ("Rectangle"), i18n ("Draws rectangles and squares"),
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TQt::Key_R,
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mainWindow, "tool_rectangle"),
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m_mode (Rectangle),
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m_toolWidgetLineWidth (0),
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m_toolWidgetFillStyle (0)
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{
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}
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kpToolRectangle::~kpToolRectangle ()
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{
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}
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void kpToolRectangle::setMode (Mode mode)
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{
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m_mode = mode;
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}
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// private
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void kpToolRectangle::updatePens ()
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{
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for (int i = 0; i < 2; i++)
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updatePen (i);
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}
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// private
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void kpToolRectangle::updateBrushes ()
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{
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for (int i = 0; i < 2; i++)
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updateBrush (i);
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}
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// virtual private slot
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void kpToolRectangle::slotForegroundColorChanged (const kpColor &)
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{
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#if DEBUG_KP_TOOL_RECTANGLE
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kdDebug () << "kpToolRectangle::slotForegroundColorChanged()" << endl;
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#endif
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updatePen (0);
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updateBrush (0); // brush may be in foreground color
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updateBrush (1);
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}
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// virtual private slot
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void kpToolRectangle::slotBackgroundColorChanged (const kpColor &)
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{
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#if DEBUG_KP_TOOL_RECTANGLE
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kdDebug () << "kpToolRectangle::slotBackgroundColorChanged()" << endl;
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kdDebug () << "\tm_toolWidgetFillStyle=" << m_toolWidgetFillStyle << endl;
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#endif
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updatePen (1);
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updateBrush (0);
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updateBrush (1); // brush may be in background color
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}
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// private
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void kpToolRectangle::updatePen (int mouseButton)
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{
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TQColor maskPenColor = color (mouseButton).maskColor ();
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if (!m_toolWidgetLineWidth)
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{
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if (color (mouseButton).isOpaque ())
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m_pen [mouseButton] = TQPen (color (mouseButton).toTQColor ());
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else
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m_pen [mouseButton] = TQPen(TQt::NoPen);
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m_maskPen [mouseButton] = TQPen (maskPenColor);
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}
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else
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{
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if (color (mouseButton).isOpaque ())
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{
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m_pen [mouseButton] = TQPen (color (mouseButton).toTQColor (),
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m_toolWidgetLineWidth->lineWidth (),
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TQt::SolidLine);
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}
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else
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m_pen [mouseButton] = TQPen(TQt::NoPen);
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m_maskPen [mouseButton] = TQPen (maskPenColor,
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m_toolWidgetLineWidth->lineWidth (),
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TQt::SolidLine);
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}
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}
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void kpToolRectangle::updateBrush (int mouseButton)
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{
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#if DEBUG_KP_TOOL_RECTANGLE
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kdDebug () << "kpToolRectangle::brush () mouseButton=" << mouseButton
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<< " m_toolWidgetFillStyle=" << m_toolWidgetFillStyle
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<< endl;
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#endif
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if (m_toolWidgetFillStyle)
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{
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m_brush [mouseButton] = m_toolWidgetFillStyle->brush (
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color (mouseButton)/*foreground colour*/,
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color (1 - mouseButton)/*background colour*/);
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m_maskBrush [mouseButton] = m_toolWidgetFillStyle->maskBrush (
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color (mouseButton)/*foreground colour*/,
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color (1 - mouseButton)/*background colour*/);
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}
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else
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{
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m_brush [mouseButton] = TQBrush(TQt::NoBrush);
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m_maskBrush [mouseButton] = TQBrush(TQt::NoBrush);
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}
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}
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// private slot virtual
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void kpToolRectangle::slotLineWidthChanged ()
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{
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updatePens ();
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if (hasBegunDraw ())
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updateShape ();
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}
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// private slot virtual
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void kpToolRectangle::slotFillStyleChanged ()
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{
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updateBrushes ();
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if (hasBegunDraw ())
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updateShape ();
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}
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// private
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TQString kpToolRectangle::haventBegunDrawUserMessage () const
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{
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return i18n ("Drag to draw.");
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}
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// virtual
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void kpToolRectangle::begin ()
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{
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#if DEBUG_KP_TOOL_RECTANGLE
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kdDebug () << "kpToolRectangle::begin ()" << endl;
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#endif
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kpToolToolBar *tb = toolToolBar ();
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#if DEBUG_KP_TOOL_RECTANGLE
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kdDebug () << "\ttoolToolBar=" << tb << endl;
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#endif
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if (tb)
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{
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m_toolWidgetLineWidth = tb->toolWidgetLineWidth ();
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connect (m_toolWidgetLineWidth, TQ_SIGNAL (lineWidthChanged (int)),
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this, TQ_SLOT (slotLineWidthChanged ()));
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m_toolWidgetLineWidth->show ();
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updatePens ();
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m_toolWidgetFillStyle = tb->toolWidgetFillStyle ();
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connect (m_toolWidgetFillStyle, TQ_SIGNAL (fillStyleChanged (kpToolWidgetFillStyle::FillStyle)),
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this, TQ_SLOT (slotFillStyleChanged ()));
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m_toolWidgetFillStyle->show ();
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updateBrushes ();
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}
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#if DEBUG_KP_TOOL_RECTANGLE
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kdDebug () << "\t\tm_toolWidgetFillStyle=" << m_toolWidgetFillStyle << endl;
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#endif
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viewManager ()->setCursor (TQCursor (CrossCursor));
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setUserMessage (haventBegunDrawUserMessage ());
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}
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// virtual
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void kpToolRectangle::end ()
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{
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#if DEBUG_KP_TOOL_RECTANGLE
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kdDebug () << "kpToolRectangle::end ()" << endl;
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#endif
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if (m_toolWidgetLineWidth)
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{
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disconnect (m_toolWidgetLineWidth, TQ_SIGNAL (lineWidthChanged (int)),
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this, TQ_SLOT (slotLineWidthChanged ()));
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m_toolWidgetLineWidth = 0;
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}
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if (m_toolWidgetFillStyle)
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{
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disconnect (m_toolWidgetFillStyle, TQ_SIGNAL (fillStyleChanged (kpToolWidgetFillStyle::FillStyle)),
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this, TQ_SLOT (slotFillStyleChanged ()));
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m_toolWidgetFillStyle = 0;
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}
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viewManager ()->unsetCursor ();
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}
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void kpToolRectangle::applyModifiers ()
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{
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TQRect rect = TQRect (m_startPoint, m_currentPoint).normalize ();
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#if DEBUG_KP_TOOL_RECTANGLE
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kdDebug () << "kpToolRectangle::applyModifiers(" << rect
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<< ") shift=" << m_shiftPressed
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<< " ctrl=" << m_controlPressed
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<< endl;
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#endif
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// user wants to m_startPoint == centre
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if (m_controlPressed)
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{
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int xdiff = kAbs (m_startPoint.x () - m_currentPoint.x ());
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int ydiff = kAbs (m_startPoint.y () - m_currentPoint.y ());
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rect = TQRect (m_startPoint.x () - xdiff, m_startPoint.y () - ydiff,
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xdiff * 2 + 1, ydiff * 2 + 1);
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}
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// user wants major axis == minor axis:
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// rectangle --> square
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// rounded rectangle --> rounded square
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// ellipse --> circle
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if (m_shiftPressed)
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{
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if (!m_controlPressed)
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{
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if (rect.width () < rect.height ())
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{
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if (m_startPoint.y () == rect.y ())
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rect.setHeight (rect.width ());
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else
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rect.setY (rect.bottom () - rect.width () + 1);
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}
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else
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{
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if (m_startPoint.x () == rect.x ())
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rect.setWidth (rect.height ());
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else
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rect.setX (rect.right () - rect.height () + 1);
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}
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}
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// have to maintain the centre
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else
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{
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if (rect.width () < rect.height ())
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{
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TQPoint center = rect.center ();
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rect.setHeight (rect.width ());
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rect.moveCenter (center);
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}
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else
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{
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TQPoint center = rect.center ();
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rect.setWidth (rect.height ());
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rect.moveCenter (center);
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}
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}
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}
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m_toolRectangleStartPoint = rect.topLeft ();
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m_toolRectangleEndPoint = rect.bottomRight ();
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m_toolRectangleRectWithoutLineWidth = rect;
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m_toolRectangleRect = kpTool::neededRect (rect, TQMAX (m_pen [m_mouseButton].width (),
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m_maskPen [m_mouseButton].width ()));
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}
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void kpToolRectangle::beginDraw ()
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{
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setUserMessage (cancelUserMessage ());
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}
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void kpToolRectangle::updateShape ()
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{
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viewManager ()->setFastUpdates ();
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TQPixmap newPixmap = pixmap (m_mode, document (), m_toolRectangleRect,
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m_toolRectangleStartPoint, m_toolRectangleEndPoint,
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m_pen [m_mouseButton], m_maskPen [m_mouseButton],
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m_brush [m_mouseButton], m_maskBrush [m_mouseButton]);
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kpTempPixmap newTempPixmap (false/*always display*/,
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kpTempPixmap::SetPixmap/*render mode*/,
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m_toolRectangleRect.topLeft (),
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newPixmap);
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viewManager ()->setTempPixmap (newTempPixmap);
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viewManager ()->restoreFastUpdates ();
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}
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void kpToolRectangle::draw (const TQPoint &, const TQPoint &, const TQRect &)
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{
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applyModifiers ();
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updateShape ();
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// Recover the start and end points from the transformed & normalized m_toolRectangleRect
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// S. or S or SC or S == C
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// .C C
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if (m_currentPoint.x () >= m_startPoint.x () &&
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m_currentPoint.y () >= m_startPoint.y ())
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{
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setUserShapePoints (m_toolRectangleRectWithoutLineWidth.topLeft (),
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m_toolRectangleRectWithoutLineWidth.bottomRight ());
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}
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// .C or C
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// S. S
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else if (m_currentPoint.x () >= m_startPoint.x () &&
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m_currentPoint.y () < m_startPoint.y ())
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{
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setUserShapePoints (m_toolRectangleRectWithoutLineWidth.bottomLeft (),
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m_toolRectangleRectWithoutLineWidth.topRight ());
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}
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// .S or CS
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// C.
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else if (m_currentPoint.x () < m_startPoint.x () &&
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m_currentPoint.y () >= m_startPoint.y ())
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{
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setUserShapePoints (m_toolRectangleRectWithoutLineWidth.topRight (),
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m_toolRectangleRectWithoutLineWidth.bottomLeft ());
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}
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// C.
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// .S
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else
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{
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setUserShapePoints (m_toolRectangleRectWithoutLineWidth.bottomRight (),
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m_toolRectangleRectWithoutLineWidth.topLeft ());
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}
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}
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void kpToolRectangle::cancelShape ()
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{
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#if 0
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endDraw (m_currentPoint, TQRect (m_startPoint, m_currentPoint).normalize ());
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mainWindow ()->commandHistory ()->undo ();
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#else
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viewManager ()->invalidateTempPixmap ();
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#endif
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setUserMessage (i18n ("Let go of all the mouse buttons."));
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}
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void kpToolRectangle::releasedAllButtons ()
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{
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setUserMessage (haventBegunDrawUserMessage ());
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}
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void kpToolRectangle::endDraw (const TQPoint &, const TQRect &)
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{
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applyModifiers ();
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// TODO: flicker
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viewManager ()->invalidateTempPixmap ();
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mainWindow ()->commandHistory ()->addCommand (
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new kpToolRectangleCommand
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(m_mode,
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m_pen [m_mouseButton], m_maskPen [m_mouseButton],
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m_brush [m_mouseButton], m_maskBrush [m_mouseButton],
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m_toolRectangleRect, m_toolRectangleStartPoint, m_toolRectangleEndPoint,
|
|
mainWindow ()));
|
|
|
|
setUserMessage (haventBegunDrawUserMessage ());
|
|
}
|
|
|
|
|
|
/*
|
|
* kpToolRectangleCommand
|
|
*/
|
|
|
|
kpToolRectangleCommand::kpToolRectangleCommand (kpToolRectangle::Mode mode,
|
|
const TQPen &pen, const TQPen &maskPen,
|
|
const TQBrush &brush, const TQBrush &maskBrush,
|
|
const TQRect &rect,
|
|
const TQPoint &startPoint, const TQPoint &endPoint,
|
|
kpMainWindow *mainWindow)
|
|
: kpCommand (mainWindow),
|
|
m_mode (mode),
|
|
m_pen (pen), m_maskPen (maskPen),
|
|
m_brush (brush), m_maskBrush (maskBrush),
|
|
m_rect (rect),
|
|
m_startPoint (startPoint),
|
|
m_endPoint (endPoint),
|
|
m_oldPixmapPtr (0)
|
|
{
|
|
}
|
|
|
|
kpToolRectangleCommand::~kpToolRectangleCommand ()
|
|
{
|
|
delete m_oldPixmapPtr;
|
|
}
|
|
|
|
|
|
// public virtual [base kpCommand]
|
|
TQString kpToolRectangleCommand::name () const
|
|
{
|
|
switch (m_mode)
|
|
{
|
|
case kpToolRectangle::Rectangle:
|
|
return i18n ("Rectangle");
|
|
case kpToolRectangle::RoundedRectangle:
|
|
return i18n ("Rounded Rectangle");
|
|
case kpToolRectangle::Ellipse:
|
|
return i18n ("Ellipse");
|
|
default:
|
|
kdError () << "kpToolRectangleCommand::name() passed unknown mode: " << int (m_mode) << endl;
|
|
return TQString();
|
|
}
|
|
}
|
|
|
|
|
|
// public virtual [base kpCommand]
|
|
int kpToolRectangleCommand::size () const
|
|
{
|
|
return kpPixmapFX::pixmapSize (m_oldPixmapPtr);
|
|
}
|
|
|
|
|
|
// public virtual [base kpCommand]
|
|
void kpToolRectangleCommand::execute ()
|
|
{
|
|
kpDocument *doc = document ();
|
|
if (!doc)
|
|
return;
|
|
|
|
// store Undo info
|
|
if (!m_oldPixmapPtr)
|
|
{
|
|
// OPT: I can do better with no brush
|
|
m_oldPixmapPtr = new TQPixmap ();
|
|
*m_oldPixmapPtr = doc->getPixmapAt (m_rect);
|
|
}
|
|
else
|
|
kdError () << "kpToolRectangleCommand::execute() m_oldPixmapPtr not null" << endl;
|
|
|
|
doc->setPixmapAt (pixmap (m_mode, doc,
|
|
m_rect, m_startPoint, m_endPoint,
|
|
m_pen, m_maskPen,
|
|
m_brush, m_maskBrush),
|
|
m_rect.topLeft ());
|
|
}
|
|
|
|
// public virtual [base kpCommand]
|
|
void kpToolRectangleCommand::unexecute ()
|
|
{
|
|
kpDocument *doc = document ();
|
|
if (!doc)
|
|
return;
|
|
|
|
if (m_oldPixmapPtr)
|
|
{
|
|
doc->setPixmapAt (*m_oldPixmapPtr, m_rect.topLeft ());
|
|
|
|
delete m_oldPixmapPtr;
|
|
m_oldPixmapPtr = 0;
|
|
}
|
|
else
|
|
kdError () << "kpToolRectangleCommand::unexecute() m_oldPixmapPtr null" << endl;
|
|
}
|
|
|
|
#include <kptoolrectangle.moc>
|