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Working on PDF zoom/scale

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This commit is contained in:
Nicolas Mailloux 2021-09-01 22:07:30 -04:00
parent dc864f6d4e
commit 94e0319576
7 changed files with 214 additions and 3 deletions
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2
eink.qrc
View file

@ -60,5 +60,7 @@
<file>resources/wifi-connected.png</file>
<file>resources/wifi-off.png</file>
<file>resources/wifi-standby.png</file>
<file>resources/zoom-in.png</file>
<file>resources/zoom-out.png</file>
</qresource>
</RCC>

4
mainwindow.cpp
View file

@ -875,7 +875,9 @@ int MainWindow::testPing() {
QProcess *pingProcess = new QProcess();
pingProcess->start(pingProg, pingArgs);
pingProcess->waitForFinished();
return pingProcess->exitCode();
int exitCode = pingProcess->exitCode();
pingProcess->deleteLater();
return exitCode;
}
void MainWindow::updateWifiIcon(int mode) {

109
reader.cpp
View file

@ -56,6 +56,8 @@ reader::reader(QWidget *parent) :
ui->nightModeBtn->setProperty("type", "borderless");
ui->searchBtn->setProperty("type", "borderless");
ui->gotoBtn->setProperty("type", "borderless");
ui->increaseScaleBtn->setProperty("type", "borderless");
ui->decreaseScaleBtn->setProperty("type", "borderless");
// Icons
ui->alignLeftBtn->setText("");
@ -84,6 +86,10 @@ reader::reader(QWidget *parent) :
ui->aboutBtn->setIcon(QIcon(":/resources/info.png"));
ui->searchBtn->setText("");
ui->searchBtn->setIcon(QIcon(":/resources/search.png"));
ui->increaseScaleBtn->setText("");
ui->increaseScaleBtn->setIcon(QIcon(":/resources/zoom-in.png"));
ui->decreaseScaleBtn->setText("");
ui->decreaseScaleBtn->setIcon(QIcon(":/resources/zoom-out.png"));
// Style misc.
ui->bookInfoLabel->setStyleSheet("font-style: italic");
@ -258,6 +264,7 @@ reader::reader(QWidget *parent) :
ui->brightnessWidget->setVisible(false);
ui->menuBarWidget->setVisible(false);
ui->buttonsBarWidget->setVisible(false);
ui->pdfScaleWidget->setVisible(false);
ui->wordWidget->setVisible(false);
if(checkconfig(".config/11-menubar/sticky") == true) {
ui->menuWidget->setVisible(true);
@ -1283,6 +1290,11 @@ void reader::menubar_show() {
if(is_pdf == false) {
ui->menuBarWidget->setVisible(true);
}
else {
ui->pdfScaleWidget->setVisible(true);
ui->graphicsView->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
ui->graphicsView->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
}
ui->buttonsBarWidget->setVisible(true);
ui->statusBarWidget->setVisible(true);
ui->pageWidget->setVisible(true);
@ -1312,6 +1324,17 @@ void reader::menubar_hide() {
if(is_pdf == false) {
ui->menuBarWidget->setVisible(false);
}
else {
ui->pdfScaleWidget->setVisible(false);
if(checkconfig(".config/14-reader_scrollbar/config") == true) {
ui->graphicsView->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
ui->graphicsView->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
}
else {
ui->graphicsView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
ui->graphicsView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}
}
ui->buttonsBarWidget->setVisible(false);
ui->pageWidget->setVisible(false);
if(checkconfig(".config/11-menubar/sticky") == true) {
@ -1539,6 +1562,12 @@ void reader::convertMuPdfVars(int fileType) {
* 0: ePUB
* 1: PDF
*/
bool convertRelativeValuesNative;
if(mupdf::convertRelativeValues == true) {
// Safer approach; local bool gets destroyed when getting out of scope
convertRelativeValuesNative = true;
mupdf::convertRelativeValues = false;
}
if(fileType == 0) {
setPageStyle(0);
mupdf::epub::fontSize = 12;
@ -1561,8 +1590,16 @@ void reader::convertMuPdfVars(int fileType) {
setPageStyle(1);
mupdf::pdf::width = defaultPdfPageWidth;
mupdf::pdf::height = defaultPdfPageHeight;
mupdf::pdf::width_qstr = QString::number(mupdf::pdf::width);
mupdf::pdf::height_qstr = QString::number(mupdf::pdf::height);
if(convertRelativeValuesNative == true) {
// For scaling
mupdf::pdf::width_qstr = QString::number(mupdf::pdf::relativeHeight);
mupdf::pdf::height_qstr = QString::number(mupdf::pdf::relativeWidth);
}
else {
// Default
mupdf::pdf::width_qstr = QString::number(mupdf::pdf::width);
mupdf::pdf::height_qstr = QString::number(mupdf::pdf::height);
}
if(global::reader::globalReadingSettings == false) {
if(goToSavedPageDone == false) {
string_checkconfig_ro(".config/A-page_number/config");
@ -1949,3 +1986,71 @@ void reader::getTotalPdfPagesNumber() {
string_checkconfig_ro("/run/pdf_total_pages_number");
totalPagesInt = checkconfig_str_val.toInt();
}
void reader::on_pdfScaleSlider_valueChanged(int value)
{
if(value == 1) {
mupdf::pdf::relativeWidth = 1 * mupdf::pdf::width;
mupdf::pdf::relativeHeight = 1 * mupdf::pdf::height;
}
else if(value == 2) {
mupdf::pdf::relativeWidth = 1.50 * mupdf::pdf::width;
mupdf::pdf::relativeHeight = 1.50 * mupdf::pdf::height;
}
else if(value == 3) {
mupdf::pdf::relativeWidth = 2 * mupdf::pdf::width;
mupdf::pdf::relativeHeight = 2 * mupdf::pdf::height;
}
else if(value == 4) {
mupdf::pdf::relativeWidth = 2.50 * mupdf::pdf::width;
mupdf::pdf::relativeHeight = 2.50 * mupdf::pdf::height;
}
if(value != 1) {
ui->graphicsView->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
ui->graphicsView->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
}
else {
if(checkconfig(".config/14-reader_scrollbar/config") == true) {
ui->graphicsView->setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded);
ui->graphicsView->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
}
else {
ui->graphicsView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
ui->graphicsView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}
}
mupdf::pdf::pdfPageNumber = mupdf::pdf::pdfPageNumber + 1;
setup_book(book_file, mupdf::pdf::pdfPageNumber, true);
setupPng();
}
void reader::on_decreaseScaleBtn_clicked()
{
int sliderCurrentValue;
int sliderWantedValue;
sliderCurrentValue = ui->pdfScaleSlider->value();
sliderWantedValue = sliderCurrentValue - 1;
if(sliderWantedValue < ui->pdfScaleSlider->QAbstractSlider::minimum()) {
showToast("Minimum scale reached");
}
else {
ui->pdfScaleSlider->setValue(sliderWantedValue);
}
}
void reader::on_increaseScaleBtn_clicked()
{
int sliderCurrentValue;
int sliderWantedValue;
sliderCurrentValue = ui->pdfScaleSlider->value();
sliderWantedValue = sliderCurrentValue + 1;
if(sliderWantedValue > ui->pdfScaleSlider->QAbstractSlider::maximum()) {
showToast("Maximum scale reached");
}
else {
ui->pdfScaleSlider->setValue(sliderWantedValue);
}
}

8
reader.h
View file

@ -13,6 +13,7 @@ using namespace std;
// ePUB scaling
namespace mupdf {
inline bool convertRelativeValues;
namespace epub {
inline int fontSize;
inline int width;
@ -26,6 +27,8 @@ namespace mupdf {
namespace pdf {
inline int width;
inline int height;
inline int relativeWidth;
inline int relativeHeight;
inline int pdfPageNumber;
inline QString width_qstr;
inline QString height_qstr;
@ -150,6 +153,11 @@ private slots:
void saveReadingSettings();
void setupLocalSettingsEnvironment();
void setupPng();
void on_pdfScaleSlider_valueChanged(int value);
void on_decreaseScaleBtn_clicked();
void on_increaseScaleBtn_clicked();
private:
Ui::reader * ui;

94
reader.ui
View file

@ -674,6 +674,100 @@
<widget class="QWidget" name="page_13"/>
</widget>
</item>
<item>
<widget class="QStackedWidget" name="pdfScaleWidget">
<widget class="QWidget" name="page_15">
<layout class="QVBoxLayout" name="verticalLayout_10">
<property name="leftMargin">
<number>0</number>
</property>
<property name="topMargin">
<number>0</number>
</property>
<property name="rightMargin">
<number>0</number>
</property>
<property name="bottomMargin">
<number>0</number>
</property>
<item>
<layout class="QGridLayout" name="gridLayout_21"/>
</item>
<item>
<layout class="QGridLayout" name="gridLayout_20">
<property name="topMargin">
<number>0</number>
</property>
<item row="2" column="2">
<widget class="QPushButton" name="increaseScaleBtn">
<property name="text">
<string>Increase scale</string>
</property>
</widget>
</item>
<item row="2" column="0">
<widget class="QPushButton" name="decreaseScaleBtn">
<property name="text">
<string>Decrease scale</string>
</property>
</widget>
</item>
<item row="0" column="1">
<widget class="QLabel" name="pdfScaleLabel">
<property name="font">
<font>
<family>Chivo</family>
<italic>true</italic>
</font>
</property>
<property name="text">
<string>Scale</string>
</property>
<property name="alignment">
<set>Qt::AlignCenter</set>
</property>
</widget>
</item>
<item row="2" column="1">
<widget class="QSlider" name="pdfScaleSlider">
<property name="minimum">
<number>1</number>
</property>
<property name="maximum">
<number>4</number>
</property>
<property name="pageStep">
<number>1</number>
</property>
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
</widget>
</item>
</layout>
</item>
<item>
<widget class="Line" name="line_18">
<property name="frameShadow">
<enum>QFrame::Plain</enum>
</property>
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
</widget>
</item>
<item>
<widget class="Line" name="line_19">
<property name="orientation">
<enum>Qt::Horizontal</enum>
</property>
</widget>
</item>
</layout>
</widget>
<widget class="QWidget" name="page_16"/>
</widget>
</item>
<item>
<layout class="QGridLayout" name="gridLayout_19">
<item row="0" column="0">

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