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512 lines
15 KiB
512 lines
15 KiB
/*
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* spinbox2.cpp - spin box with extra pair of spin buttons (for TQt 3)
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* Program: kalarm
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* Copyright © 2001-2005,2008 by David Jarvie <djarvie@kde.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include <tqglobal.h>
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#include <stdlib.h>
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#include <tqstyle.h>
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#include <tqobjectlist.h>
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#include <tqapplication.h>
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#include <tqpixmap.h>
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#include <tqcursor.h>
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#include <tqtimer.h>
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#include <tqwmatrix.h>
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#include "spinbox2.moc"
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#include "spinbox2private.moc"
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/* List of styles which need to display the extra pair of spin buttons as a
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* left-to-right mirror image. This is only necessary when, for example, the
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* corners of widgets are rounded. For most styles, it is better not to mirror
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* the spin widgets so as to keep the normal lighting/shading on either side.
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*/
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static const char* mirrorStyles[] = {
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"PlastikStyle",
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0 // list terminator
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};
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static bool mirrorStyle(const TQStyle&);
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int SpinBox2::mReverseLayout = -1;
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SpinBox2::SpinBox2(TQWidget* parent, const char* name)
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: TQFrame(parent, name),
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mReverseWithLayout(true)
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{
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mUpdown2Frame = new TQFrame(this);
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mSpinboxFrame = new TQFrame(this);
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mUpdown2 = new ExtraSpinBox(mUpdown2Frame, "updown2");
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// mSpinbox = new MainSpinBox(0, 1, 1, this, mSpinboxFrame);
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mSpinbox = new MainSpinBox(this, mSpinboxFrame);
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init();
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}
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SpinBox2::SpinBox2(int minValue, int maxValue, int step, int step2, TQWidget* parent, const char* name)
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: TQFrame(parent, name),
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mReverseWithLayout(true)
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{
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mUpdown2Frame = new TQFrame(this);
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mSpinboxFrame = new TQFrame(this);
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mUpdown2 = new ExtraSpinBox(minValue, maxValue, step2, mUpdown2Frame, "updown2");
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mSpinbox = new MainSpinBox(minValue, maxValue, step, this, mSpinboxFrame);
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setSteps(step, step2);
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init();
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}
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void SpinBox2::init()
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{
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if (mReverseLayout < 0)
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mReverseLayout = TQApplication::reverseLayout() ? 1 : 0;
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mMinValue = mSpinbox->minValue();
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mMaxValue = mSpinbox->maxValue();
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mLineStep = mSpinbox->lineStep();
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mLineShiftStep = mSpinbox->lineShiftStep();
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mPageStep = mUpdown2->lineStep();
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mPageShiftStep = mUpdown2->lineShiftStep();
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mSpinbox->setSelectOnStep(false); // default
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mUpdown2->setSelectOnStep(false); // always false
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setFocusProxy(mSpinbox);
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mUpdown2->setFocusPolicy(TQWidget::NoFocus);
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mSpinMirror = new SpinMirror(mUpdown2, mUpdown2Frame, this);
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if (!mirrorStyle(style()))
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mSpinMirror->hide(); // hide mirrored spin buttons when they are inappropriate
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connect(mSpinbox, TQ_SIGNAL(valueChanged(int)), TQ_SLOT(valueChange()));
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connect(mSpinbox, TQ_SIGNAL(valueChanged(int)), TQ_SIGNAL(valueChanged(int)));
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connect(mSpinbox, TQ_SIGNAL(valueChanged(const TQString&)), TQ_SIGNAL(valueChanged(const TQString&)));
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connect(mUpdown2, TQ_SIGNAL(stepped(int)), TQ_SLOT(stepPage(int)));
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connect(mUpdown2, TQ_SIGNAL(styleUpdated()), TQ_SLOT(updateMirror()));
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}
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void SpinBox2::setReadOnly(bool ro)
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{
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if (static_cast<int>(ro) != static_cast<int>(mSpinbox->isReadOnly()))
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{
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mSpinbox->setReadOnly(ro);
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mUpdown2->setReadOnly(ro);
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mSpinMirror->setReadOnly(ro);
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}
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}
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void SpinBox2::setReverseWithLayout(bool reverse)
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{
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if (reverse != mReverseWithLayout)
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{
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mReverseWithLayout = reverse;
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setSteps(mLineStep, mPageStep);
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setShiftSteps(mLineShiftStep, mPageShiftStep);
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}
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}
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void SpinBox2::setEnabled(bool enabled)
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{
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TQFrame::setEnabled(enabled);
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updateMirror();
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}
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void SpinBox2::setWrapping(bool on)
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{
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mSpinbox->setWrapping(on);
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mUpdown2->setWrapping(on);
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}
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TQRect SpinBox2::up2Rect() const
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{
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return mUpdown2->upRect();
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}
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TQRect SpinBox2::down2Rect() const
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{
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return mUpdown2->downRect();
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}
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void SpinBox2::setLineStep(int step)
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{
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mLineStep = step;
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if (reverseButtons())
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mUpdown2->setLineStep(step); // reverse layout, but still set the right buttons
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else
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mSpinbox->setLineStep(step);
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}
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void SpinBox2::setSteps(int line, int page)
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{
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mLineStep = line;
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mPageStep = page;
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if (reverseButtons())
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{
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mUpdown2->setLineStep(line); // reverse layout, but still set the right buttons
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mSpinbox->setLineStep(page);
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}
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else
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{
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mSpinbox->setLineStep(line);
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mUpdown2->setLineStep(page);
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}
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}
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void SpinBox2::setShiftSteps(int line, int page)
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{
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mLineShiftStep = line;
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mPageShiftStep = page;
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if (reverseButtons())
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{
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mUpdown2->setLineShiftStep(line); // reverse layout, but still set the right buttons
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mSpinbox->setLineShiftStep(page);
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}
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else
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{
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mSpinbox->setLineShiftStep(line);
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mUpdown2->setLineShiftStep(page);
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}
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}
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void SpinBox2::setButtonSymbols(TQSpinBox::ButtonSymbols newSymbols)
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{
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if (mSpinbox->buttonSymbols() == newSymbols)
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return;
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mSpinbox->setButtonSymbols(newSymbols);
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mUpdown2->setButtonSymbols(newSymbols);
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}
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int SpinBox2::bound(int val) const
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{
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return (val < mMinValue) ? mMinValue : (val > mMaxValue) ? mMaxValue : val;
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}
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void SpinBox2::setMinValue(int val)
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{
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mMinValue = val;
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mSpinbox->setMinValue(val);
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mUpdown2->setMinValue(val);
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}
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void SpinBox2::setMaxValue(int val)
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{
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mMaxValue = val;
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mSpinbox->setMaxValue(val);
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mUpdown2->setMaxValue(val);
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}
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void SpinBox2::valueChange()
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{
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int val = mSpinbox->value();
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bool blocked = mUpdown2->signalsBlocked();
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mUpdown2->blockSignals(true);
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mUpdown2->setValue(val);
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mUpdown2->blockSignals(blocked);
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}
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/******************************************************************************
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* Called when the widget is about to be displayed.
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* (At construction time, the spin button widths cannot be determined correctly,
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* so we need to wait until now to definitively rearrange the widget.)
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*/
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void SpinBox2::showEvent(TQShowEvent*)
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{
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arrange();
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}
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TQSize SpinBox2::sizeHint() const
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{
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getMetrics();
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TQSize size = mSpinbox->sizeHint();
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size.setWidth(size.width() - xSpinbox + wUpdown2 + wGap);
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return size;
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}
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TQSize SpinBox2::minimumSizeHint() const
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{
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getMetrics();
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TQSize size = mSpinbox->minimumSizeHint();
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size.setWidth(size.width() - xSpinbox + wUpdown2 + wGap);
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return size;
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}
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void SpinBox2::styleChange(TQStyle&)
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{
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if (mirrorStyle(style()))
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mSpinMirror->show(); // show rounded corners with Plastik etc.
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else
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mSpinMirror->hide(); // keep normal shading with other styles
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arrange();
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}
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/******************************************************************************
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* Called when the extra pair of spin buttons has repainted after a style change.
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* Updates the mirror image of the spin buttons.
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*/
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void SpinBox2::updateMirror()
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{
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mSpinMirror->setNormalButtons(TQPixmap::grabWidget(mUpdown2Frame, 0, 0));
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}
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/******************************************************************************
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* Set the positions and sizes of all the child widgets.
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*/
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void SpinBox2::arrange()
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{
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getMetrics();
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TQRect arrowRect = TQStyle::visualRect(TQRect(0, 0, wUpdown2, height()), this);
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mUpdown2Frame->setGeometry(arrowRect);
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mUpdown2->setGeometry(-xUpdown2, 0, mUpdown2->width(), height());
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mSpinboxFrame->setGeometry(TQStyle::visualRect(TQRect(wUpdown2 + wGap, 0, width() - wUpdown2 - wGap, height()), this));
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mSpinbox->setGeometry(-xSpinbox, 0, mSpinboxFrame->width() + xSpinbox, height());
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mSpinMirror->resize(wUpdown2, mUpdown2->height());
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mSpinMirror->setGeometry(arrowRect);
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//mSpinMirror->setGeometry(TQStyle::visualRect(TQRect(0, 11, wUpdown2, height()), this));
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mSpinMirror->setNormalButtons(TQPixmap::grabWidget(mUpdown2Frame, 0, 0));
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}
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/******************************************************************************
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* Calculate the width and position of the extra pair of spin buttons.
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* Style-specific adjustments are made for a better appearance.
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*/
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void SpinBox2::getMetrics() const
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{
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TQRect rect = mUpdown2->style().querySubControlMetrics(TQStyle::CC_SpinWidget, mUpdown2, TQStyle::SC_SpinWidgetButtonField);
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if (style().inherits("PlastikStyle"))
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rect.setLeft(rect.left() - 1); // Plastik excludes left border from spin widget rectangle
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xUpdown2 = mReverseLayout ? 0 : rect.left();
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wUpdown2 = mUpdown2->width() - rect.left();
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xSpinbox = mSpinbox->style().querySubControlMetrics(TQStyle::CC_SpinWidget, mSpinbox, TQStyle::SC_SpinWidgetEditField).left();
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wGap = 0;
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// Make style-specific adjustments for a better appearance
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if (style().inherits("TQMotifPlusStyle"))
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{
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xSpinbox = 0; // show the edit control left border
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wGap = 2; // leave a space to the right of the left-hand pair of spin buttons
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}
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}
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/******************************************************************************
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* Called when the extra pair of spin buttons is clicked to step the value.
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* Normally this is a page step, but with a right-to-left language where the
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* button functions are reversed, this is a line step.
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*/
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void SpinBox2::stepPage(int step)
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{
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if (abs(step) == mUpdown2->lineStep())
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mSpinbox->setValue(mUpdown2->value());
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else
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{
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// It's a shift step
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int oldValue = mSpinbox->value();
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if (!reverseButtons())
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{
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// The button pairs have the normal function.
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// Page shift stepping - step up or down to a multiple of the
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// shift page increment, leaving unchanged the part of the value
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// which is the remainder from the page increment.
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if (oldValue >= 0)
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oldValue -= oldValue % mUpdown2->lineStep();
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else
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oldValue += (-oldValue) % mUpdown2->lineStep();
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}
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int adjust = mSpinbox->shiftStepAdjustment(oldValue, step);
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if (adjust == -step
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&& ((step > 0 && oldValue + step >= mSpinbox->maxValue())
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|| (step < 0 && oldValue + step <= mSpinbox->minValue())))
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adjust = 0; // allow stepping to the minimum or maximum value
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mSpinbox->addValue(adjust + step);
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}
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bool focus = mSpinbox->selectOnStep() && mUpdown2->hasFocus();
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if (focus)
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mSpinbox->selectAll();
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// Make the covering arrows image show the pressed arrow
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mSpinMirror->redraw(TQPixmap::grabWidget(mUpdown2Frame, 0, 0));
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}
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/*=============================================================================
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= Class SpinBox2::MainSpinBox
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=============================================================================*/
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/******************************************************************************
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* Return the initial adjustment to the value for a shift step up or down, for
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* the main (visible) spin box.
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* Normally this is a line step, but with a right-to-left language where the
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* button functions are reversed, this is a page step.
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*/
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int SpinBox2::MainSpinBox::shiftStepAdjustment(int oldValue, int shiftStep)
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{
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if (owner->reverseButtons())
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{
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// The button pairs have the opposite function from normal.
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// Page shift stepping - step up or down to a multiple of the
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// shift page increment, leaving unchanged the part of the value
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// which is the remainder from the page increment.
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if (oldValue >= 0)
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oldValue -= oldValue % lineStep();
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else
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oldValue += (-oldValue) % lineStep();
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}
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return SpinBox::shiftStepAdjustment(oldValue, shiftStep);
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}
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/*=============================================================================
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= Class ExtraSpinBox
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=============================================================================*/
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/******************************************************************************
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* Repaint the widget.
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* If it's the first time since a style change, tell the parent SpinBox2 to
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* update the SpinMirror with the new unpressed button image. We make the
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* presumably reasonable assumption that when a style change occurs, the spin
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* buttons are unpressed.
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*/
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void ExtraSpinBox::paintEvent(TQPaintEvent* e)
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{
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SpinBox::paintEvent(e);
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if (mNewStylePending)
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{
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mNewStylePending = false;
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emit styleUpdated();
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}
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}
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/*=============================================================================
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= Class SpinMirror
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=============================================================================*/
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SpinMirror::SpinMirror(SpinBox* spinbox, TQFrame* spinFrame, TQWidget* parent, const char* name)
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: TQCanvasView(new TQCanvas, parent, name),
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mSpinbox(spinbox),
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mSpinFrame(spinFrame),
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mReadOnly(false)
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{
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setVScrollBarMode(TQScrollView::AlwaysOff);
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setHScrollBarMode(TQScrollView::AlwaysOff);
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setFrameStyle(TQFrame::NoFrame);
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// Find the spin widget which is part of the spin box, in order to
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// pass on its shift-button presses.
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TQObjectList* spinwidgets = spinbox->queryList("TQSpinWidget", 0, false, true);
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mSpinWidget = (SpinBox*)spinwidgets->getFirst();
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delete spinwidgets;
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}
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void SpinMirror::setNormalButtons(const TQPixmap& px)
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{
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mNormalButtons = px;
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redraw(mNormalButtons);
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}
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void SpinMirror::redraw()
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{
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redraw(TQPixmap::grabWidget(mSpinFrame, 0, 0));
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}
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void SpinMirror::redraw(const TQPixmap& px)
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{
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TQCanvas* c = canvas();
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c->setBackgroundPixmap(px);
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c->setAllChanged();
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c->update();
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}
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void SpinMirror::resize(int w, int h)
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{
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canvas()->resize(w, h);
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TQCanvasView::resize(w, h);
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resizeContents(w, h);
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setWorldMatrix(TQWMatrix(-1, 0, 0, 1, w - 1, 0)); // mirror left to right
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}
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/******************************************************************************
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* Pass on all mouse events to the spinbox which we're covering up.
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*/
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void SpinMirror::contentsMouseEvent(TQMouseEvent* e)
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{
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if (mReadOnly)
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return;
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TQPoint pt = contentsToViewport(e->pos());
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pt.setX(pt.x() + mSpinbox->upRect().left());
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TQApplication::postEvent(mSpinWidget, new TQMouseEvent(e->type(), pt, e->button(), e->state()));
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// If the mouse button has been pressed or released, refresh the spin buttons
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switch (e->type())
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{
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case TQEvent::MouseButtonPress:
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case TQEvent::MouseButtonRelease:
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TQTimer::singleShot(0, this, TQ_SLOT(redraw()));
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break;
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default:
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break;
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}
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}
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/******************************************************************************
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* Pass on all mouse events to the spinbox which we're covering up.
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*/
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void SpinMirror::contentsWheelEvent(TQWheelEvent* e)
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{
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if (mReadOnly)
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return;
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TQPoint pt = contentsToViewport(e->pos());
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pt.setX(pt.x() + mSpinbox->upRect().left());
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TQApplication::postEvent(mSpinWidget, new TQWheelEvent(pt, e->delta(), e->state(), e->orientation()));
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}
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/******************************************************************************
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* Pass on to the main spinbox events which are needed to activate mouseover and
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* other graphic effects when the mouse cursor enters and leaves the widget.
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*/
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bool SpinMirror::event(TQEvent* e)
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{
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switch (e->type())
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{
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case TQEvent::Leave:
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case TQEvent::Enter:
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TQApplication::postEvent(mSpinWidget, new TQEvent(e->type()));
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TQTimer::singleShot(0, this, TQ_SLOT(redraw()));
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break;
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case TQEvent::FocusIn:
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mSpinbox->setFocus();
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TQTimer::singleShot(0, this, TQ_SLOT(redraw()));
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break;
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default:
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break;
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}
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return TQCanvasView::event(e);
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}
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/*=============================================================================
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= Local functions
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=============================================================================*/
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/******************************************************************************
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* Determine whether the extra pair of spin buttons needs to be mirrored
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* left-to-right in the specified style.
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*/
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static bool mirrorStyle(const TQStyle& style)
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{
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for (const char** s = mirrorStyles; *s; ++s)
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if (style.inherits(*s))
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return true;
|
|
return false;
|
|
}
|