Backport: Feature [feature-requests:497] Structure caret policy data and pass policy for

dragging instead of manipulating global state..

Backport of changeset 7990:9716682f5120.

1 files changed, 18 insertions, 9 deletions

diff --git a/src/Editor.h b/src/Editor.h
index 52d422850..c88a181a7 100644
--- a/src/Editor.h
+++ b/src/Editor.h
@@ -143,6 +143,18 @@ struct WrapPending {
 	}
 };
 
+struct CaretPolicy {
+	int policy;	// Combination from CARET_SLOP, CARET_STRICT, CARET_JUMPS, CARET_EVEN
+	int slop;	// Pixels for X, lines for Y
+	CaretPolicy(uptr_t policy_=0, sptr_t slop_=0) noexcept :
+		policy(static_cast<int>(policy_)), slop(static_cast<int>(slop_)) {}
+};
+
+struct CaretPolicies {
+	CaretPolicy x;
+	CaretPolicy y;
+};
+
 /**
  */
 class Editor : public EditModel, public DocWatcher {
@@ -232,14 +244,9 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 
 	SelectionText drag;
 
-	int caretXPolicy;
-	int caretXSlop;	///< Ensure this many pixels visible on both sides of caret
-
-	int caretYPolicy;
-	int caretYSlop;	///< Ensure this many lines visible on both sides of caret
+	CaretPolicies caretPolicies;
 
-	int visiblePolicy;
-	int visibleSlop;
+	CaretPolicy visiblePolicy;
 
 	Sci::Position searchAnchor;
 
@@ -325,7 +332,8 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 	bool SelectionContainsProtected();
 	Sci::Position MovePositionOutsideChar(Sci::Position pos, Sci::Position moveDir, bool checkLineEnd=true) const;
 	SelectionPosition MovePositionOutsideChar(SelectionPosition pos, Sci::Position moveDir, bool checkLineEnd=true) const;
-	void MovedCaret(SelectionPosition newPos, SelectionPosition previousPos, bool ensureVisible);
+	void MovedCaret(SelectionPosition newPos, SelectionPosition previousPos,
+		bool ensureVisible, CaretPolicies policies);
 	void MovePositionTo(SelectionPosition newPos, Selection::selTypes selt=Selection::noSel, bool ensureVisible=true);
 	void MovePositionTo(Sci::Position newPos, Selection::selTypes selt=Selection::noSel, bool ensureVisible=true);
 	SelectionPosition MovePositionSoVisible(SelectionPosition pos, int moveDir);
@@ -356,7 +364,8 @@ protected:	// ScintillaBase subclass needs access to much of Editor
 		xysVertical=0x2,
 		xysHorizontal=0x4,
 		xysDefault=xysUseMargin|xysVertical|xysHorizontal};
-	XYScrollPosition XYScrollToMakeVisible(const SelectionRange &range, const XYScrollOptions options);
+	XYScrollPosition XYScrollToMakeVisible(const SelectionRange &range,
+		const XYScrollOptions options, CaretPolicies policies);
 	void SetXYScroll(XYScrollPosition newXY);
 	void EnsureCaretVisible(bool useMargin=true, bool vert=true, bool horiz=true);
 	void ScrollRange(SelectionRange range);