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mainwidget.cpp
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mainwidget.cpp
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/*
* Copyright (C) 2020-2024 Gavin MacGregor
*
* This file is part of QTeletextMaker.
*
* QTeletextMaker is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* QTeletextMaker is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with QTeletextMaker. If not, see <https://www.gnu.org/licenses/>.
*/
#include <QApplication>
#include <QBitmap>
#include <QClipboard>
#include <QFrame>
#include <QGraphicsItem>
#include <QGraphicsItemGroup>
#include <QGraphicsProxyWidget>
#include <QGraphicsScene>
#include <QGraphicsSceneEvent>
#include <QKeyEvent>
#include <QMenu>
#include <QMimeData>
#include <QPainter>
#include <QPair>
#include <QUndoCommand>
#include <QWidget>
#include <vector>
#include <iostream>
#include "mainwidget.h"
#include "decode.h"
#include "document.h"
#include "keymap.h"
#include "levelonecommands.h"
#include "levelonepage.h"
#include "render.h"
#include "x26triplets.h"
TeletextWidget::TeletextWidget(QFrame *parent) : QFrame(parent)
{
this->resize(QSize(480, 250));
this->setAttribute(Qt::WA_NoSystemBackground);
this->setAttribute(Qt::WA_InputMethodEnabled, true);
m_teletextDocument = new TeletextDocument();
m_levelOnePage = m_teletextDocument->currentSubPage();
m_pageDecode.setTeletextPage(m_levelOnePage);
m_pageRender.setDecoder(&m_pageDecode);
m_insertMode = false;
m_selectionInProgress = false;
setFocusPolicy(Qt::StrongFocus);
m_flashTiming = m_flashPhase = 0;
connect(&m_pageRender, &TeletextPageRender::flashChanged, this, &TeletextWidget::updateFlashTimer);
connect(&m_pageDecode, &TeletextPageDecode::sidePanelsChanged, this, &TeletextWidget::changeSize);
connect(m_teletextDocument, &TeletextDocument::subPageSelected, this, &TeletextWidget::subPageSelected);
connect(m_teletextDocument, &TeletextDocument::contentsChanged, this, &TeletextWidget::refreshPage);
connect(m_teletextDocument, &TeletextDocument::colourChanged, &m_pageRender, &TeletextPageRender::colourChanged);
}
TeletextWidget::~TeletextWidget()
{
if (m_flashTimer.isActive())
m_flashTimer.stop();
delete m_teletextDocument;
}
// Re-implemented so compose/dead keys work properly
void TeletextWidget::inputMethodEvent(QInputMethodEvent* event)
{
if (!event->commitString().isEmpty()) {
QKeyEvent keyEvent(QEvent::KeyPress, 0, Qt::NoModifier, event->commitString());
keyPressEvent(&keyEvent);
}
event->accept();
}
void TeletextWidget::subPageSelected()
{
m_levelOnePage = m_teletextDocument->currentSubPage();
m_pageDecode.setTeletextPage(m_levelOnePage);
m_pageDecode.decodePage();
m_pageRender.renderPage(true);
update();
}
void TeletextWidget::refreshPage()
{
m_pageDecode.decodePage();
update();
}
void TeletextWidget::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
QPainter widgetPainter(this);
m_pageRender.renderPage();
widgetPainter.drawImage(m_pageDecode.leftSidePanelColumns()*12, 0, *m_pageRender.image(m_flashPhase), 0, 0, 480, 250);
if (m_pageDecode.leftSidePanelColumns())
widgetPainter.drawImage(0, 0, *m_pageRender.image(m_flashPhase), 864-m_pageDecode.leftSidePanelColumns()*12, 0, m_pageDecode.leftSidePanelColumns()*12, 250);
if (m_pageDecode.rightSidePanelColumns())
widgetPainter.drawImage(480+m_pageDecode.leftSidePanelColumns()*12, 0, *m_pageRender.image(m_flashPhase), 480, 0, m_pageDecode.rightSidePanelColumns()*12, 250);
}
void TeletextWidget::updateFlashTimer(int newFlashTimer)
{
m_flashTiming = newFlashTimer;
m_flashPhase = 0;
if (newFlashTimer == 0) {
m_flashTimer.stop();
update();
return;
}
m_flashTimer.start((newFlashTimer == 1) ? 500 : 167, this);
}
void TeletextWidget::timerEvent(QTimerEvent *event)
{
if (event->timerId() == m_flashTimer.timerId()) {
if (m_flashTiming == 1)
m_flashPhase += 3;
else
m_flashPhase++;
if (m_flashPhase == 6)
m_flashPhase = 0;
update();
} else
QWidget::timerEvent(event);
}
void TeletextWidget::pauseFlash(bool pauseNow)
{
if (pauseNow && m_flashTiming != 0) {
m_flashTimer.stop();
m_flashPhase = 0;
update();
} else if (m_flashTiming != 0)
m_flashTimer.start((m_flashTiming == 1) ? 500 : 167, this);
}
void TeletextWidget::setInsertMode(bool insertMode)
{
m_insertMode = insertMode;
}
void TeletextWidget::setReveal(bool reveal)
{
m_pageRender.setReveal(reveal);
update();
}
void TeletextWidget::setMix(bool mix)
{
m_pageRender.setMix(mix);
update();
}
void TeletextWidget::setShowControlCodes(bool showControlCodes)
{
m_pageRender.setShowControlCodes(showControlCodes);
update();
}
void TeletextWidget::setControlBit(int bitNumber, bool active)
{
m_levelOnePage->setControlBit(bitNumber, active);
if (bitNumber == 1 || bitNumber == 2) {
m_pageDecode.decodePage();
m_pageRender.renderPage(true);
update();
}
}
void TeletextWidget::setDefaultCharSet(int newDefaultCharSet)
{
m_levelOnePage->setDefaultCharSet(newDefaultCharSet);
}
void TeletextWidget::setDefaultNOS(int newDefaultNOS)
{
m_levelOnePage->setDefaultNOS(newDefaultNOS);
}
void TeletextWidget::setSidePanelWidths(int newLeftSidePanelColumns, int newRightSidePanelColumns)
{
m_levelOnePage->setLeftSidePanelDisplayed(newLeftSidePanelColumns != 0);
m_levelOnePage->setRightSidePanelDisplayed(newRightSidePanelColumns != 0);
if (newLeftSidePanelColumns)
m_levelOnePage->setSidePanelColumns((newLeftSidePanelColumns == 16) ? 0 : newLeftSidePanelColumns);
else
m_levelOnePage->setSidePanelColumns((newRightSidePanelColumns == 0) ? 0 : 16-newRightSidePanelColumns);
m_pageDecode.updateSidePanels();
}
void TeletextWidget::setSidePanelAtL35Only(bool newSidePanelAtL35Only)
{
m_levelOnePage->setSidePanelStatusL25(!newSidePanelAtL35Only);
m_pageDecode.updateSidePanels();
}
void TeletextWidget::changeSize()
{
setFixedSize(QSize(480+(pageDecode()->leftSidePanelColumns()+pageDecode()->rightSidePanelColumns())*12, 250));
emit sizeChanged();
}
void TeletextWidget::keyPressEvent(QKeyEvent *event)
{
if (event->key() < 0x01000000) {
// A character-typing key was pressed
// Try to keymap it, if not keymapped then plain ASCII code (may be) returned
char mappedKeyPress = keymapping[m_pageDecode.level1CharSet(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn())].value(event->text().at(0), *qPrintable(event->text().at(0)));
if (mappedKeyPress >= 0x00 && mappedKeyPress <= 0x1f)
return;
// If outside ASCII map then the character can't be represented by current Level 1 character set
// Map it to block character so it doesn't need to be inserted-between later on
if (mappedKeyPress & 0x80)
mappedKeyPress = 0x7f;
if (m_pageDecode.level1MosaicAttribute(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn()) && (mappedKeyPress < 0x40 || mappedKeyPress > 0x5f)) {
// We're on a mosaic and a blast-through character was NOT pressed
if (event->key() >= Qt::Key_0 && event->key() <= Qt::Key_9 && event->modifiers() & Qt::KeypadModifier) {
switch (event->key()) {
case Qt::Key_7:
toggleCharacterBit(0x01); // Top left
break;
case Qt::Key_8:
toggleCharacterBit(0x02); // Top right
break;
case Qt::Key_4:
toggleCharacterBit(0x04); // Middle left
break;
case Qt::Key_5:
toggleCharacterBit(0x08); // Middle right
break;
case Qt::Key_1:
toggleCharacterBit(0x10); // Bottom left
break;
case Qt::Key_2:
toggleCharacterBit(0x40); // Bottom right
break;
case Qt::Key_9:
toggleCharacterBit(0x5f); // Invert
break;
case Qt::Key_6:
toggleCharacterBit(0x7f); // Set all
break;
case Qt::Key_3:
toggleCharacterBit(0x20); // Clear all
break;
case Qt::Key_0:
toggleCharacterBit(0x66); // Dither
break;
}
return;
}
if (event->key() == Qt::Key_Space) {
setCharacter(0x20);
return;
}
// This macro is defined in keymap.h if no native scan codes are defined
// for the platform we are compiling on
#ifndef QTTM_NONATIVESCANCODES
if (event->nativeScanCode() > 1) {
switch (event->nativeScanCode()) {
case mosaicNativeScanCodes[0]:
toggleCharacterBit(0x01); // Top left
break;
case mosaicNativeScanCodes[1]:
toggleCharacterBit(0x02); // Top right
break;
case mosaicNativeScanCodes[2]:
toggleCharacterBit(0x04); // Middle left
break;
case mosaicNativeScanCodes[3]:
toggleCharacterBit(0x08); // Middle right
break;
case mosaicNativeScanCodes[4]:
toggleCharacterBit(0x10); // Bottom left
break;
case mosaicNativeScanCodes[5]:
toggleCharacterBit(0x40); // Bottom right
break;
case mosaicNativeScanCodes[6]:
toggleCharacterBit(0x5f); // Invert
break;
case mosaicNativeScanCodes[7]:
toggleCharacterBit(0x7f); // Set all
break;
case mosaicNativeScanCodes[8]:
toggleCharacterBit(0x20); // Clear all
break;
case mosaicNativeScanCodes[9]:
toggleCharacterBit(0x66); // Dither
break;
}
return;
} else
qDebug("nativeScanCode not usable! Please use numeric keypad to toggle mosaic bits.");
#else
qDebug("nativeScanCode was not compiled in! Please use numeric keypad to toggle mosaic bits.");
#endif
// TODO some contingency plan if nativeScanCode didn't work?
return;
}
setCharacter(mappedKeyPress);
return;
}
switch (event->key()) {
case Qt::Key_Backspace:
m_teletextDocument->undoStack()->push(new BackspaceKeyCommand(m_teletextDocument, m_insertMode));
break;
case Qt::Key_Tab:
m_teletextDocument->undoStack()->push(new TypeCharacterCommand(m_teletextDocument, 0x20, true));
break;
case Qt::Key_Delete:
m_teletextDocument->undoStack()->push(new DeleteKeyCommand(m_teletextDocument));
break;
case Qt::Key_Insert:
emit insertKeyPressed();
break;
case Qt::Key_Up:
m_teletextDocument->cursorUp(event->modifiers() & Qt::ShiftModifier);
break;
case Qt::Key_Down:
m_teletextDocument->cursorDown(event->modifiers() & Qt::ShiftModifier);
break;
case Qt::Key_Left:
m_teletextDocument->cursorLeft(event->modifiers() & Qt::ShiftModifier);
break;
case Qt::Key_Right:
m_teletextDocument->cursorRight(event->modifiers() & Qt::ShiftModifier);
break;
case Qt::Key_Return:
case Qt::Key_Enter:
m_teletextDocument->cursorDown();
m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 0);
break;
case Qt::Key_Home:
m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 0, event->modifiers() & Qt::ShiftModifier);
break;
case Qt::Key_End:
m_teletextDocument->moveCursor(m_teletextDocument->cursorRow(), 39, event->modifiers() & Qt::ShiftModifier);
break;
case Qt::Key_PageUp:
m_teletextDocument->selectSubPageNext();
break;
case Qt::Key_PageDown:
m_teletextDocument->selectSubPagePrevious();
break;
case Qt::Key_F6:
m_pageDecode.decodePage();
m_pageRender.renderPage(true);
update();
break;
default:
QFrame::keyPressEvent(event);
}
}
void TeletextWidget::setCharacter(unsigned char newCharacter)
{
m_teletextDocument->undoStack()->push(new TypeCharacterCommand(m_teletextDocument, newCharacter, m_insertMode));
}
void TeletextWidget::toggleCharacterBit(unsigned char bitToToggle)
{
m_teletextDocument->undoStack()->push(new ToggleMosaicBitCommand(m_teletextDocument, bitToToggle));
}
void TeletextWidget::selectionToClipboard()
{
QByteArray nativeData;
QString plainTextData;
QClipboard *clipboard = QApplication::clipboard();
nativeData.resize(2 + m_teletextDocument->selectionWidth() * m_teletextDocument->selectionHeight());
nativeData[0] = m_teletextDocument->selectionHeight();
nativeData[1] = m_teletextDocument->selectionWidth();
plainTextData.reserve((m_teletextDocument->selectionWidth()+1) * m_teletextDocument->selectionHeight() - 1);
int i=2;
for (int r=m_teletextDocument->selectionTopRow(); r<=m_teletextDocument->selectionBottomRow(); r++) {
for (int c=m_teletextDocument->selectionLeftColumn(); c<=m_teletextDocument->selectionRightColumn(); c++) {
nativeData[i++] = m_teletextDocument->currentSubPage()->character(r, c);
if (m_teletextDocument->currentSubPage()->character(r, c) >= 0x20)
plainTextData.append(keymapping[m_pageDecode.level1CharSet(r, c)].key(m_teletextDocument->currentSubPage()->character(r, c), QChar(m_teletextDocument->currentSubPage()->character(r, c))));
else
plainTextData.append(' ');
}
plainTextData.append('\n');
}
QMimeData *mimeData = new QMimeData();
mimeData->setData("application/x-teletext", nativeData);
mimeData->setText(plainTextData);
clipboard->setMimeData(mimeData);
}
void TeletextWidget::cut()
{
if (!m_teletextDocument->selectionActive())
return;
selectionToClipboard();
m_teletextDocument->undoStack()->push(new CutCommand(m_teletextDocument));
}
void TeletextWidget::copy()
{
if (!m_teletextDocument->selectionActive())
return;
selectionToClipboard();
}
void TeletextWidget::paste()
{
m_teletextDocument->undoStack()->push(new PasteCommand(m_teletextDocument, m_pageDecode.level1CharSet(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn())));
}
QPair<int, int> TeletextWidget::mouseToRowAndColumn(const QPoint &mousePosition)
{
int row = mousePosition.y() / 10;
int column = mousePosition.x() / 12 - m_pageDecode.leftSidePanelColumns();
if (row < 1)
row = 1;
if (row > 24)
row = 24;
if (column < 0)
column = 0;
if (column > 39)
column = 39;
return qMakePair(row, column);
}
void TeletextWidget::mousePressEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton) {
m_teletextDocument->cancelSelection();
QPair<int, int> position = mouseToRowAndColumn(event->pos());
m_teletextDocument->moveCursor(position.first, position.second);
update();
}
}
void TeletextWidget::mouseMoveEvent(QMouseEvent *event)
{
if (event->buttons() & Qt::LeftButton) {
QPair<int, int> position = mouseToRowAndColumn(event->pos());
if (position.first != m_teletextDocument->cursorRow() || position.second != m_teletextDocument->cursorColumn()) {
if (!m_selectionInProgress) {
m_selectionInProgress = true;
m_teletextDocument->setSelectionCorner(m_teletextDocument->cursorRow(), m_teletextDocument->cursorColumn());
}
m_teletextDocument->moveCursor(position.first, position.second, true);
}
}
}
void TeletextWidget::mouseReleaseEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton)
m_selectionInProgress = false;
}
void TeletextWidget::focusInEvent(QFocusEvent *event)
{
QFrame::focusInEvent(event);
}
void TeletextWidget::focusOutEvent(QFocusEvent *event)
{
QFrame::focusOutEvent(event);
}
LevelOneScene::LevelOneScene(QWidget *levelOneWidget, QObject *parent) : QGraphicsScene(parent)
{
m_grid = false;
// These dimensions are scratch, setBorderDimensions will get called straight away to adjust them
setSceneRect(0, 0, 600, 288);
// Full screen colours
m_fullScreenTopRectItem = new QGraphicsRectItem(0, 0, 600, 19);
m_fullScreenTopRectItem->setPen(Qt::NoPen);
m_fullScreenTopRectItem->setBrush(QBrush(QColor(0, 0, 0)));
addItem(m_fullScreenTopRectItem);
m_fullScreenBottomRectItem = new QGraphicsRectItem(0, 269, 600, 19);
m_fullScreenBottomRectItem->setPen(Qt::NoPen);
m_fullScreenBottomRectItem->setBrush(QBrush(QColor(0, 0, 0)));
addItem(m_fullScreenBottomRectItem);
// Full row colours
for (int r=0; r<25; r++) {
m_fullRowLeftRectItem[r] = new QGraphicsRectItem(0, 19+r*10, 60, 10);
m_fullRowLeftRectItem[r]->setPen(Qt::NoPen);
m_fullRowLeftRectItem[r]->setBrush(QBrush(QColor(0, 0, 0)));
addItem(m_fullRowLeftRectItem[r]);
m_fullRowRightRectItem[r] = new QGraphicsRectItem(540, 19+r*10, 60, 10);
m_fullRowRightRectItem[r]->setPen(Qt::NoPen);
m_fullRowRightRectItem[r]->setBrush(QBrush(QColor(0, 0, 0)));
addItem(m_fullRowRightRectItem[r]);
}
// Main text widget
m_levelOneProxyWidget = addWidget(levelOneWidget);
m_levelOneProxyWidget->setPos(60, 19);
m_levelOneProxyWidget->setAutoFillBackground(false);
m_levelOneProxyWidget->setFocus();
// Selection
m_selectionRectItem = new QGraphicsRectItem(0, 0, 12, 10);
m_selectionRectItem->setVisible(false);
m_selectionRectItem->setPen(QPen(QColor(192, 192, 192), 1, Qt::DashLine));
m_selectionRectItem->setBrush(QBrush(QColor(255, 255, 255, 64)));
addItem(m_selectionRectItem);
// Cursor
m_cursorRectItem = new QGraphicsRectItem(0, 0, 12, 10);
m_cursorRectItem->setPen(Qt::NoPen);
m_cursorRectItem->setBrush(QBrush(QColor(128, 128, 128, 192)));
addItem(m_cursorRectItem);
// Optional grid overlay for text widget
m_mainGridItemGroup = new QGraphicsItemGroup;
m_mainGridItemGroup->setVisible(false);
addItem(m_mainGridItemGroup);
// Additional vertical pieces of grid for side panels
for (int i=0; i<32; i++) {
m_sidePanelGridNeeded[i] = false;
m_sidePanelGridItemGroup[i] = new QGraphicsItemGroup;
m_sidePanelGridItemGroup[i]->setVisible(false);
addItem(m_sidePanelGridItemGroup[i]);
}
for (int r=1; r<25; r++) {
for (int c=0; c<40; c++) {
QGraphicsRectItem *gridPiece = new QGraphicsRectItem(c*12, r*10, 12, 10);
gridPiece->setPen(QPen(QBrush(QColor(128, 128, 128, r<24 ? 192 : 128)), 0));
m_mainGridItemGroup->addToGroup(gridPiece);
}
if (r < 24)
for (int c=0; c<32; c++) {
QGraphicsRectItem *gridPiece = new QGraphicsRectItem(0, r*10, 12, 10);
gridPiece->setPen(QPen(QBrush(QColor(128, 128, 128, 64)), 0));
m_sidePanelGridItemGroup[c]->addToGroup(gridPiece);
}
}
installEventFilter(this);
}
void LevelOneScene::setBorderDimensions(int sceneWidth, int sceneHeight, int widgetWidth, int leftSidePanelColumns, int rightSidePanelColumns)
{
setSceneRect(0, 0, sceneWidth, sceneHeight);
// Assume text widget height is always 250
int topBottomBorders = (sceneHeight-250) / 2;
// Ideally we'd use m_levelOneProxyWidget->size() to discover the widget width ourselves
// but this causes a stubborn segfault, so we have to receive the widgetWidth as a parameter
int leftRightBorders = (sceneWidth-widgetWidth) / 2;
m_levelOneProxyWidget->setPos(leftRightBorders, topBottomBorders);
// Position grid to cover central 40 columns
m_mainGridItemGroup->setPos(leftRightBorders + leftSidePanelColumns*12, topBottomBorders);
updateCursor();
updateSelection();
// Grid for right side panel
for (int c=0; c<16; c++)
if (rightSidePanelColumns > c) {
m_sidePanelGridItemGroup[c]->setPos(leftRightBorders + leftSidePanelColumns*12 + 480 + c*12, topBottomBorders);
m_sidePanelGridItemGroup[c]->setVisible(m_grid);
m_sidePanelGridNeeded[c] = true;
} else {
m_sidePanelGridItemGroup[c]->setVisible(false);
m_sidePanelGridNeeded[c] = false;
}
// Grid for left side panel
for (int c=0; c<16; c++)
if (c < leftSidePanelColumns) {
m_sidePanelGridItemGroup[31-c]->setPos(leftRightBorders + (leftSidePanelColumns-c-1)*12, topBottomBorders);
m_sidePanelGridItemGroup[31-c]->setVisible(m_grid);
m_sidePanelGridNeeded[31-c] = true;
} else {
m_sidePanelGridItemGroup[31-c]->setVisible(false);
m_sidePanelGridNeeded[31-c] = false;
}
// Full screen colours
m_fullScreenTopRectItem->setRect(0, 0, sceneWidth, topBottomBorders);
m_fullScreenBottomRectItem->setRect(0, 250+topBottomBorders, sceneWidth, topBottomBorders);
// Full row colours
for (int r=0; r<25; r++) {
m_fullRowLeftRectItem[r]->setRect(0, topBottomBorders+r*10, leftRightBorders+1, 10);
m_fullRowRightRectItem[r]->setRect(sceneWidth-leftRightBorders-1, topBottomBorders+r*10, leftRightBorders+1, 10);
}
}
void LevelOneScene::updateCursor()
{
m_cursorRectItem->setPos(m_mainGridItemGroup->pos().x() + static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->cursorColumn()*12, m_mainGridItemGroup->pos().y() + static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->cursorRow()*10);
}
void LevelOneScene::updateSelection()
{
if (!static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionActive()) {
m_selectionRectItem->setVisible(false);
return;
}
m_selectionRectItem->setRect(m_mainGridItemGroup->pos().x() + static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionLeftColumn()*12, m_mainGridItemGroup->pos().y() + static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionTopRow()*10, static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionWidth()*12-1, static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionHeight()*10-1);
m_selectionRectItem->setVisible(true);
}
void LevelOneScene::setMix(bool mix)
{
if (mix) {
m_fullScreenTopRectItem->setBrush(Qt::transparent);
m_fullScreenBottomRectItem->setBrush(Qt::transparent);
for (int r=0; r<25; r++) {
m_fullRowLeftRectItem[r]->setBrush(Qt::transparent);
m_fullRowRightRectItem[r]->setBrush(Qt::transparent);
}
} else {
setFullScreenColour(static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->pageDecode()->fullScreenQColor());
for (int r=0; r<25; r++)
setFullRowColour(r, static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->pageDecode()->fullRowQColor(r));
}
}
void LevelOneScene::toggleGrid(bool gridOn)
{
m_grid = gridOn;
m_mainGridItemGroup->setVisible(gridOn);
for (int i=0; i<32; i++)
if (m_sidePanelGridNeeded[i])
m_sidePanelGridItemGroup[i]->setVisible(gridOn);
}
void LevelOneScene::hideGUIElements(bool hidden)
{
if (hidden) {
m_cursorRectItem->setVisible(false);
m_selectionRectItem->setVisible(false);
} else {
if (static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->document()->selectionActive())
m_selectionRectItem->setVisible(true);
m_cursorRectItem->setVisible(true);
}
}
// Implements Ctrl+mousewheel zoom
bool LevelOneScene::eventFilter(QObject *object, QEvent *event)
{
Q_UNUSED(object);
if (event->type() == QEvent::GraphicsSceneWheel && static_cast<QGraphicsSceneWheelEvent *>(event)->modifiers() == Qt::ControlModifier) {
if (static_cast<QGraphicsSceneWheelEvent *>(event)->delta() > 0)
emit mouseZoomIn();
else if (static_cast<QGraphicsSceneWheelEvent *>(event)->delta() < 0)
emit mouseZoomOut();
event->accept();
return true;
}
return false;
}
// Clicking outside the main text widget but still within the scene would
// cause keyboard focus loss.
// So on every keypress within the scene, wrench the focus back to the widget
// if necessary.
void LevelOneScene::keyPressEvent(QKeyEvent *keyEvent)
{
if (focusItem() != m_levelOneProxyWidget)
setFocusItem(m_levelOneProxyWidget);
QGraphicsScene::keyPressEvent(keyEvent);
}
void LevelOneScene::keyReleaseEvent(QKeyEvent *keyEvent)
{
if (focusItem() != m_levelOneProxyWidget)
setFocusItem(m_levelOneProxyWidget);
QGraphicsScene::keyReleaseEvent(keyEvent);
}
void LevelOneScene::setFullScreenColour(const QColor &newColor)
{
if (!static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->pageRender()->mix()) {
m_fullScreenTopRectItem->setBrush(newColor);
m_fullScreenBottomRectItem->setBrush(newColor);
}
}
void LevelOneScene::setFullRowColour(int row, const QColor &newColor)
{
if (!static_cast<TeletextWidget *>(m_levelOneProxyWidget->widget())->pageRender()->mix()) {
m_fullRowLeftRectItem[row]->setBrush(newColor);
m_fullRowRightRectItem[row]->setBrush(newColor);
}
}