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Merge pull request #534 from iwbnwif/zoom_textdoc

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Implement mouse wheel zoom of text documents
This commit is contained in:
Vadim Kuznetsov 2024-02-08 10:44:14 +03:00 committed by GitHub
commit 9e612955ee
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3 changed files with 45 additions and 30 deletions
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2
qucs/qucs.cpp
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@ -1983,6 +1983,7 @@ void QucsApp::slotChangeView()
Doc = (QucsDoc*)d;
// update menu entries, etc. if necessary
magAll->setDisabled(true);
magSel->setDisabled(true);
if(cursorLeft->isEnabled())
switchSchematicDoc (false);
}
@ -1991,6 +1992,7 @@ void QucsApp::slotChangeView()
Schematic *d = (Schematic*)w;
Doc = (QucsDoc*)d;
magAll->setDisabled(false);
magSel->setDisabled(false);
// already in schematic?
if(cursorLeft->isEnabled()) {
// which mode: schematic or symbol editor ?

66
qucs/textdoc.cpp
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@ -42,11 +42,10 @@ Copyright (C) 2014 by Guilherme Brondani Torri <guitorri@gmail.com>
*/
TextDoc::TextDoc(QucsApp *App_, const QString& Name_) : QPlainTextEdit(), QucsDoc(App_, Name_)
{
TextFont = QFont("Courier New");
TextFont.setPointSize(QucsSettings.font.pointSize()-1);
TextFont.setStyleHint(QFont::Courier);
TextFont.setFixedPitch(true);
document()->setDefaultFont(TextFont);
QFont font("Courier New", QucsSettings.font.pointSize());
font.setStyleHint(QFont::Courier);
font.setFixedPitch(true);
setFont(font);
simulation = true;
Library = "";
@ -55,7 +54,6 @@ TextDoc::TextDoc(QucsApp *App_, const QString& Name_) : QPlainTextEdit(), QucsDo
devtype = DEV_DEF;
tmpPosX = tmpPosY = 1; // set to 1 to trigger line highlighting
Scale = (float)TextFont.pointSize();
setLanguage (Name_);
viewport()->setFocus();
@ -416,37 +414,32 @@ int TextDoc::save ()
}
/*!
* \brief TextDoc::zoomBy increases/decreases the text font size.
* \param s font size scaling factor
* \return (required) final scale
*
* \fixme is the return value being saved on the saveSettings() ?
* \brief Zooms the document in and out. Note, the zoom amount is fixed by Qt and the
* amount passed is ignored.
*/
float TextDoc::zoomBy(float s)
float TextDoc::zoomBy(float zoom)
{
if(s == 2.0) {
QFont f = document()->defaultFont();
f.setPointSize(f.pointSize()*2);
document()->setDefaultFont(f);
// qucs_actions defines zooming in as > 1.
if (zoom > 1.0) {
zoomIn();
}
else {
QFont f = document()->defaultFont();
f.setPointSize(f.pointSize()*s);
document()->setDefaultFont(f);
zoomOut();
}
return Scale;
return zoom;
}
/*!
* \brief TextDoc::showNoZoom resets the font scaling
* \brief Resets the font scaling to default.
*/
void TextDoc::showNoZoom()
{
TextFont = QFont("Courier New");
TextFont.setPointSize(QucsSettings.font.pointSize()-1);
TextFont.setStyleHint(QFont::Courier);
TextFont.setFixedPitch(true);
document()->setDefaultFont(TextFont);
// Get a copy of this editor's existing font and apply the default font size to it.
QFont tempFont = font();
tempFont.setPointSize(QucsSettings.font.pointSize());
setFont(tempFont);
}
/*!
@ -567,6 +560,27 @@ QString TextDoc::getModuleName (void)
}
}
/*!
* \brief Handle mouse wheel events
* Used to 'zoom' i.e., increase / reduce the font size.
*/
void TextDoc::wheelEvent(QWheelEvent* event)
{
if (event->modifiers() & Qt::CTRL) {
if (event->angleDelta().y() > 0) {
zoomIn();
}
else {
zoomOut();
}
}
else {
QPlainTextEdit::wheelEvent(event);
}
}
/*!
* \brief TextDoc::highlightCurrentLine mark the current line
*/

7
qucs/textdoc.h
View File

@ -53,8 +53,8 @@ public:
void setName (const QString&);
bool load ();
int save ();
float zoomBy (float);
void showNoZoom ();
virtual float zoomBy (float zoom) override;
virtual void showNoZoom () override;
void becomeCurrent (bool);
bool loadSimulationTime (QString&);
void commentSelected ();
@ -63,8 +63,7 @@ public:
void setLanguage (const QString&);
QString getModuleName (void);
QFont TextFont;
virtual void wheelEvent(QWheelEvent* event) override;
bool simulation; // simulation or module
QString Library; // library this document belongs to