From 398f3df8af02047a76ab7172c69d93313250260c Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sun, 29 Jan 2012 13:51:31 +0000
Subject: FS#80 Have mouse focus stick to the widget when the mouse button is
 down.

---
 src/ui/ui.cc | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'src/ui/ui.cc')

diff --git a/src/ui/ui.cc b/src/ui/ui.cc
index 4977d03..e10d77a 100644
--- a/src/ui/ui.cc
+++ b/src/ui/ui.cc
@@ -87,6 +87,8 @@ UI::UI() : Window(0)
 
 	mouse_pointer_color = Palette::Pointer;
 	mouse_pointer_bitmap.assign("pointer");
+	
+	mouse_buttonleft_pressed = false;
 }
 
 UI::~UI()
@@ -249,12 +251,18 @@ void UI::list_visible() const
 void UI::frame()
 {
 	ui_input_focus = find_input_focus();
-	Widget *f = find_mouse_focus(mouse_cursor);
+	
+	Widget *f = 0;
+	if (!mouse_buttonleft_pressed) {
+		f = find_mouse_focus(mouse_cursor);
+	} else {
+		f = find_visible_child(ui_mouse_focus);
+	}
 	if (f) {
 		f->event_mouse(mouse_cursor);
 	}
 	ui_mouse_focus = f;
-
+	
 	// reset mouse pointer
 	ui::root()->set_pointer("pointer");
 	
@@ -288,6 +296,9 @@ bool UI::input_key(const bool pressed, const int key, const unsigned int modifie
 		ui_input_focus = f;
 		
 	} else if (key < 564) {
+		if ( key == 512 + SDL_BUTTON_LEFT) {
+			mouse_buttonleft_pressed = pressed;
+		}			
 		// mouse buttons
 		Widget *f = find_mouse_focus(mouse_cursor);
 		if (f) {
-- 
cgit v1.2.3