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wxRichTextCtrl Text Not Centering
Posted: Sun Jul 14, 2019 1:15 am
by Deluge
I'm trying to center justify the text of a wxRichTextCtrl. The docs say to use
wxRichTextCtrl::StartAlignment(wxTEXT_ALIGNMENT_CENTER), but it's not working:
Code: Select all
#include <wx/wx.h>
#include <wx/richtext/richtextctrl.h>
class Window : public wxFrame {
public:
Window();
private:
wxRichTextCtrl* te;
};
Window::Window() :
wxFrame(NULL, -1, "Rich Text") {
te = new wxRichTextCtrl(this, -1, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxRE_READONLY);
te->BeginAlignment(wxTEXT_ALIGNMENT_CENTER); // centering text not working
te->WriteText("Hello rich text!");
}
class App : public wxApp {
public:
virtual bool OnInit();
};
wxIMPLEMENT_APP(App);
bool App::OnInit() {
Window* frame = new Window();
SetTopWindow(frame);
frame->Show(true);
return true;
}
This is the result:
- rich_text_center_justify_fail.png (2.37 KiB) Viewed 1943 times
What am I doing wrong?
Re: wxRichTextCtrl Text Not Centering
Posted: Sun Jul 14, 2019 7:41 am
by Kvaz1r
It seems like a bug (alignment don't applied to one-line text) so I would create new ticket on
https://trac.wxwidgets.org.
Re: wxRichTextCtrl Text Not Centering
Posted: Sun Jul 14, 2019 7:45 am
by doublemax
You need a matching EndAlignment() call.
Re: wxRichTextCtrl Text Not Centering
Posted: Sun Jul 14, 2019 8:06 am
by Kvaz1r
doublemax wrote: ↑Sun Jul 14, 2019 7:45 am
You need a matching EndAlignment() call.
It didn't work with this changes either. But if called
Newline/0 style works as expected.
Re: wxRichTextCtrl Text Not Centering
Posted: Sun Jul 14, 2019 9:32 am
by Deluge
Kvaz1r wrote: ↑Sun Jul 14, 2019 8:06 am
doublemax wrote: ↑Sun Jul 14, 2019 7:45 am
You need a matching EndAlignment() call.
It didn't work with this changes either. But if called
Newline/0 style works as expected.
Adding a new line after the text worked for me. Thank you Kvaz1r.
Code: Select all
te->WriteText("Hello rich text!\n");
or
Code: Select all
te->WriteText("Hello rich text!");
te->Newline();
This is what my actual code looked like:
Code: Select all
textarea->BeginAlignment(wxTEXT_ALIGNMENT_CENTER);
textarea->BeginFontSize(14);
textarea->BeginBold();
textarea->WriteText("HOW TO PLAY");
textarea->EndAllStyles();
textarea->BeginBold();
textarea->BeginUnderline();
textarea->WriteText("\n\nSelecting a category:\n");
So I changed it to this:
Code: Select all
textarea->BeginAlignment(wxTEXT_ALIGNMENT_CENTER);
textarea->BeginFontSize(14);
textarea->BeginBold();
textarea->WriteText("HOW TO PLAY\n");
textarea->EndAllStyles();
textarea->BeginBold();
textarea->BeginUnderline();
textarea->WriteText("\nSelecting a category:\n");
It seems that calling
EndAllStyles or
EndAlignment before a newline removes the alignment for the current line. Which actually makes sense. But it makes it look like a bug when there is only a single line without calling one of those.
--- Edit ---
Alignment is not applied to final line if not followed by a newline character:
Code: Select all
Window::Window() :
wxFrame(NULL, -1, "Rich Text") {
te = new wxRichTextCtrl(this, -1, wxEmptyString, wxDefaultPosition, wxDefaultSize, wxRE_READONLY);
te->BeginAlignment(wxTEXT_ALIGNMENT_CENTER); // centering text not working
te->WriteText("Hello rich text!\n");
te->WriteText("Goodbye rich text");
}
Result:
- rich_text_center_justify2.png (2.78 KiB) Viewed 1912 times
Re: wxRichTextCtrl Text Not Centering
Posted: Mon Jul 15, 2019 2:43 pm
by ONEEYEMAN
Hi,
It probably is a bug, because if you didn't close the alignment tag, after pressing Enter cursor needs to be moved to the middle of the control.
I'd create a ticket on trac.wxwidgets.org to trac it down.
Thank you.
Re: wxRichTextCtrl Text Not Centering
Posted: Sun Aug 11, 2019 8:00 am
by Kvaz1r