[LyX/master] GuiDocument: re-introduce allowMathIndent()

[Uwe Stöhr]

commit 6cabf4948fe08f6567519e7997750083d1af3339
Author: Uwe Stöhr <uwesto...@lyx.org>
Date:   Thu Apr 20 23:21:11 2017 +0200

    GuiDocument: re-introduce allowMathIndent()
    
    was accidentally reverted by [d86954eb/lyxgit]
---
 src/frontends/qt4/GuiDocument.cpp |   16 ++++++++++++++++
 src/frontends/qt4/GuiDocument.h   |    1 +
 2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/src/frontends/qt4/GuiDocument.cpp 
b/src/frontends/qt4/GuiDocument.cpp
index 8469447..9d45890 100644
--- a/src/frontends/qt4/GuiDocument.cpp
+++ b/src/frontends/qt4/GuiDocument.cpp
@@ -726,6 +726,8 @@ GuiDocument::GuiDocument(GuiView & lv)
 
        connect(textLayoutModule->MathIndentCB, SIGNAL(toggled(bool)),
                this, SLOT(change_adaptor()));
+       connect(textLayoutModule->MathIndentCB, SIGNAL(toggled(bool)),
+               this, SLOT(allowMathIndent()));
        connect(textLayoutModule->MathIndentCO, SIGNAL(activated(int)),
                this, SLOT(change_adaptor()));
        connect(textLayoutModule->MathIndentCO, SIGNAL(activated(int)),
@@ -1609,6 +1611,20 @@ void GuiDocument::enableSkip(bool skip)
                setSkip(textLayoutModule->skipCO->currentIndex());
 }
 
+void GuiDocument::allowMathIndent() {
+       // only disable when not checked, checked does not always allow enabling
+       if (!textLayoutModule->MathIndentCB->isChecked()) {
+               textLayoutModule->MathIndentLE->setEnabled(false);
+               textLayoutModule->MathIndentLengthCO->setEnabled(false);
+       }
+       if (textLayoutModule->MathIndentCB->isChecked()
+           && textLayoutModule->MathIndentCO->currentIndex() == 1) {
+                       textLayoutModule->MathIndentLE->setEnabled(true);
+                       textLayoutModule->MathIndentLengthCO->setEnabled(true);
+       }
+       isValid();
+}
+
 void GuiDocument::setMathIndent(int item)
 {
        bool const enable = (item == 1);
diff --git a/src/frontends/qt4/GuiDocument.h b/src/frontends/qt4/GuiDocument.h
index b33fca9..7527a59 100644
--- a/src/frontends/qt4/GuiDocument.h
+++ b/src/frontends/qt4/GuiDocument.h
@@ -109,6 +109,7 @@ private Q_SLOTS:
        void enableIndent(bool);
        void setSkip(int);
        void enableSkip(bool);
+       void allowMathIndent();
        void setMathIndent(int);
        void browseLayout();
        void browseMaster();