C++ resize a docked Qt QDockWidget programmatically? -

-

i've started working on new c++/qt project. it's going mdi-based ide docked widgets things file tree, object browser, compiler output, etc. 1 thing bugging me far though: can't figure out how programmatically make qdockwidget smaller. example, snippet creates bottom dock window, "build information":

m_compileroutput = new qtextedit; m_compileroutput->setreadonly(true); dock = new qdockwidget(tr("build information"), this); dock->setwidget(m_compileroutput); adddockwidget(qt::bottomdockwidgetarea, dock);

when launched, program looks (bear in mind stage of development):

actual

however, want appear this:

expected

i can't seem happen. qt reference on qdockwidget says this:

custom size hints, minimum , maximum sizes , size policies should implemented in child widget. qdockwidget respect them, adjusting own constraints include frame , title. size constraints should not set on qdockwidget itself, because change depending on whether docked

now, suggests 1 method of going doing sub-class qtextedit , override sizehint() method. however, prefer not purpose, nor have tried find working solution.

i have tried calling dock->resize(m_compileroutput->width(), m_compileroutput->minimumheight()), calling m_compileroutput->setsizepolicy() each of options... nothing far has affected size. said, prefer simple solution in few lines of code having create sub-class change sizehint(). suggestions appreciated.

i went through same process. after trying far many permutations of resize(), adjustsize() , friends on dock widgets , contained widget, none of worked, ended subclassing qlistview , adding sizehint() method.

now works charm.


Comments

Post a Comment

Popular posts from this blog

javascript - Enclosure Memory Copies -

-
function myclass() { //lots , lots of vars , code here. this.bar = function() { //do numerous enclosed myclass vars } this.foo = function() { alert('hello'); //don't enclosed variables. } } each instance of myclass gets own copy of bar , foo, why prototyped methods use less memory. however, know more memory use of inner methods. it seems obvious me (1) below must true. agree? not distinct myclass instances have own distinct copies of bar, must have own distinct copies of myclass enclosure. (or else how bar method keep myclass variables straight on per instance basis?) now (2) question i'm after. since inner foo method doesn't use in myclass enclosure natural qustion is: javascript smart enough not keep myclass enclosure in memory use of foo? this depend entirely on implementation not language. naive implementations keep far more around others. answer true e.g. v8 (chrome's js engine) may not true spider...
Read more

php - Replacing tags in braces, even nested tags, with regex -

-
example preg_replace('/\{[a-za-z.,\(\)0-9]+\}/', 'replaced', 'lorem ipsum dolor sit {tag1({tag2()})}, consectetur adipiscing elit.'); the result: lorem ipsum dolor sit {tag1(replaced)}, consectetur adipiscing elit. question as can see "tag2" has been replaced, want replace "tag1" know how can this? (in cases might this: {tag1({tag2({tag3()})})}) , on.) btw using preg_replace_callback, easier show preg_replace here site can test code: http://www.spaweditor.com/scripts/regex/index.php you need add curly braces character set. here's pattern used: /\{[a-za-z.,\(\)\{\}0-9]+\}/ and here result: "lorem ipsum dolor sit replaced, consectetur adipiscing elit."
Read more