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Questions tagged [qfontmetrics]

The QFontMetrics class provides font metrics information.

QFontMetrics functions calculate the size of characters and strings for a given font.

Official documentation can be found here.

19 questions
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QFontMetrics give strange results for monospace font

Сan someone explain to me results of this test program? #include #include #include int main(int argc, char *argv[]) { QApplication app(argc, argv); QFont font; font.fromString("Monospace,14"); …
poljak181
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Center text vertically when drawing with QPainter's drawText()

My strategy when centering text on images is to get bounding rectangle for that text and divide width or height by two. I did the same in this case. This is example I have created: void CanvasWidget::paintEvent(QPaintEvent*) { //Create image: …
Tomáš Zato
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Why the QFontMetrics::boundingRect() return a wrong size rect?

I'm using Qt4.7. When I use QFontMetrics to render my text in some situation, I got a wrong width. My code is like this: QFontMetrics fm(QApplication::font()); QRect rc = fm.boundingRect(str); I found that fm.boundingRect(str) always return a fixed…
user2343441
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Find the text width in QFont

I have two items in my tree model i have small difference in text alignment.Is this caused by the width of the text but i checked the width of text using QFontMetrics::width() but both text are same. Text1:111601756 Text2:999999996 As from the…
anbu selvan
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QFontMetrics boundingRect

I'm having problems with the QFontMetrics 'boundingRect' function, it doesn't return the correct results. mfntArial = QFont("Arial", 12, QFont::Bold); QFontMetrics objMetrics(mfntArial); QRect rctLine =…
SPlatten
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Why is there a mismatch in width provided by QFontMetrics and width shown by Qml Rectangle/ Text

I have written a qml and cpp file to validate and visualize QFontMetrics concept. #include #include #include int main(int argc, char *argv[]) { QGuiApplication app(argc, argv); QQmlApplicationEngine…
user12531295
1
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1 answer

Get Substring of QString by Pixels in Qt cpp

I have a QString who's pixel length I can get by QFontmetrics::width(), also I can have character length from QString by QString::length(), but here I am intended to cut QString by specific amount of pixels. Is there any way possible to have…
karan chavan
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How to set dynamic QFont size?

I came across QFontMetrics? http://doc.qt.io/qt-5/qfontmetrics.html This gives the height and width of the present font. I need to run my application with full screen mode on on different monitors for which I am using Scale class.…
Aquarius_Girl
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When I use QFontMetrics in PyQt5, the numbers I get don't match the size of the text that I'm drawing with drawText

I'm trying to get the size of a text, so I can scale it accordingly to fit inside a box. But unfortunately the QFontMetrics.width() seems to give wrong outputs. Here's a code that draws a text, and uses values from QFontMetrics to draw a rect that…
Tom
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QFontMetrics::horizontalAdvance() returns inconsistent results

I'm working on a function that determines the maximum number of characters that can fit in a given width (in pixels) based on the widest character in the string and then chops the string accordingly. I'm using the horizontalAdvance method of…
Nihilish
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Qt wrapping text in boundingRect

I am writing an application in PyQt and I need to wrap the text that I am painting. I use boundingRect method of QFontMetrics class to define the size and then QPainter.drawText to draw. I need the text to fit in a given rectangle. This is the line…
Vladislav
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Qt/ Qml Frobihser font behaving differently in Linux and Windows environment

I have written a qtquickapplication sample program to display a text "none" within given rectangle. Rectangle border color is set to red to visualize whether text "none" is fitting properly within given width and height or not. I have compiled same…
RaviS Gupta
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Font Rendering difference in windows and Linux, Qt Cpp

I have, QFontMetrics m_fm(QFont("Arial",14)); and m_fm.width("Existing LAN IP Address from Project Network"); returns '297' (on windows) can anyone tell me what it returns on linux compiler? and if its different on linux then why so? and how…
karan chavan
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drawText on QGraphicsView::drawForeground

My code is below. void MyView::drawForeground(QPainter *painter, const QRectF &rect) { Q_UNUSED(rect); painter->save(); QRectF rt = viewport()->rect(); painter->setWorldMatrixEnabled(false); QString strInfo = "test12345"; …
DaeHee.Lim
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How to interpret QFontMetrics results?

I have a problem making sense of the values I get from QFontMetrics // 43 characters 0123456789012345678901234567890123456789012 static const QString s("The quick brown fox jumps over the lazy dog"); // Hint: basically returns…
Horst Walter
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