[PATCH] Some fixes

[Yuriy Skalko]

Hello,

Please review two attached patches:

1. Now setting of math matrix size by dragging mouse is imprecise due to 
Qt limit on min cell size. The patch fixes this.

2. Now Beamer columns have fixed margin size determined by 
untranslatable English string. The patch changes it to dynamic.


Yuriy
-------------- next part --------------
From bf9914554df866ddc7740f36f98d8a6d8ac5334d Mon Sep 17 00:00:00 2001
From: Yuriy Skalko <yuriy.skalko at gmail.com>
Date: Thu, 18 Feb 2021 15:36:24 +0200
Subject: [PATCH 1/2] Fix setting of math matrix size with mouse

---
 src/frontends/qt/EmptyTable.cpp | 16 ++++++++++++----
 src/frontends/qt/EmptyTable.h   |  4 ++++
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/src/frontends/qt/EmptyTable.cpp b/src/frontends/qt/EmptyTable.cpp
index bc2963ba32..80cbe88aec 100644
--- a/src/frontends/qt/EmptyTable.cpp
+++ b/src/frontends/qt/EmptyTable.cpp
@@ -22,10 +22,6 @@
  * A simple widget for a quick "preview" in TabularCreateDialog
  */
 
-unsigned int const cellheight = 20;
-unsigned int const cellwidth = 30;
-
-
 EmptyTable::EmptyTable(QWidget * parent, int rows, int columns)
 	: QTableWidget(rows, columns, parent)
 {
@@ -34,7 +30,9 @@ EmptyTable::EmptyTable(QWidget * parent, int rows, int columns)
 	setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
 	viewport()->resize(cellheight * rows, cellwidth * columns);
 	setSelectionMode(QAbstractItemView::NoSelection);
+	setFocusPolicy(Qt::NoFocus);
 	setEditTriggers(QAbstractItemView::NoEditTriggers);
+	adjustMinCellSize();
 }
 
 
@@ -43,6 +41,16 @@ QSize EmptyTable::sizeHint() const
 	return QSize(cellwidth * (2 + columnCount()), cellheight * (2 + rowCount()));
 }
 
+
+void EmptyTable::adjustMinCellSize()
+{
+	setRowHeight(0, cellheight);
+	cellheight = rowHeight(0);
+	setColumnWidth(0, cellwidth);
+	cellwidth = columnWidth(0);
+}
+
+
 void EmptyTable::resetCellSize()
 {
 	for(int i = 0; i < rowCount(); ++i)
diff --git a/src/frontends/qt/EmptyTable.h b/src/frontends/qt/EmptyTable.h
index 99265266d2..9285db5ceb 100644
--- a/src/frontends/qt/EmptyTable.h
+++ b/src/frontends/qt/EmptyTable.h
@@ -49,6 +49,10 @@ protected:
 	virtual void resetCellSize();
 
 private:
+	void adjustMinCellSize();
+
+	int cellheight = 20;
+	int cellwidth = 30;
 };
 
 
-- 
2.28.0.windows.1

-------------- next part --------------
From ffaab2a0b889bbc0967346fda5df5090beb1597d Mon Sep 17 00:00:00 2001
From: Yuriy Skalko <yuriy.skalko at gmail.com>
Date: Thu, 18 Feb 2021 15:38:13 +0200
Subject: [PATCH 2/2] Fix margins for Beamer columns

---
 lib/layouts/beamer.layout | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/lib/layouts/beamer.layout b/lib/layouts/beamer.layout
index 61d8823770..a26c409783 100644
--- a/lib/layouts/beamer.layout
+++ b/lib/layouts/beamer.layout
@@ -666,12 +666,12 @@ End
 
 
 #
-# COLUMS
+# COLUMNS
 #
 
 Style Column
   Category         Columns
-  Margin           Static
+  Margin           Dynamic
   LatexType        Command
   LatexName        column
   ParSkip          0.5
@@ -689,7 +689,6 @@ Style Column
     LabelString    "Options"
     Tooltip        "Column options (see beamer manual)"
   EndArgument
-  LeftMargin       "Start column (increase depth!), width:xx"
   LabelFont
     Family         Roman
     Color          latex
@@ -699,16 +698,15 @@ End
 Style Columns
   Category         Columns
   KeepEmpty        1
-  Margin           Static
+  Margin           First_Dynamic
   LatexType        Environment
-  NextNoIndent     0
+  NextNoIndent     1
   ParIndent        MM
   Align            Left
   LabelType        Static
   LabelSep         xx
   LatexName        columns
   LabelString      "Columns"
-  LeftMargin       "Columnsxx"
   Argument 1
     LabelString    "Column Placement Options"
     Tooltip        "Column placement options (t, T, c, b)"
@@ -732,7 +730,6 @@ Style ColumnsCenterAligned
   CopyStyle        Columns
   LatexParam       [c]
   LabelString      "Columns (center aligned)"
-  LeftMargin       "Columns (center aligned)xx"
   ResetArgs        1
 End
 
@@ -740,7 +737,6 @@ Style ColumnsTopAligned
   CopyStyle        Columns
   LatexParam       [t]
   LabelString      "Columns (top aligned)"
-  LeftMargin       "Columns (top aligned)xx"
   ResetArgs        1
 End
 
-- 
2.28.0.windows.1