From aedd91735f15c4ed206a35a633760f48454037ae Mon Sep 17 00:00:00 2001
From: Jonathan Westhues <jwesthues@cq.cx>
Date: Sun, 27 Apr 2008 01:31:56 -0800
Subject: [PATCH] Text window was double-buffered, but background was still
 getting erased before redraw, which caused a bit of flicker on show. And hide
 debug prints in solver.

[git-p4: depot-paths = "//depot/solvespace/": change = 1693]
---
 system.cpp        | 7 ++++---
 win32/w32main.cpp | 7 ++++---
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/system.cpp b/system.cpp
index c51aab3..40449a5 100644
--- a/system.cpp
+++ b/system.cpp
@@ -207,23 +207,24 @@ bool System::NewtonSolve(int tag) {
 
 bool System::Solve(void) {
     int i, j;
+/*
     dbp("%d equations", eq.n);
     for(i = 0; i < eq.n; i++) {
         dbp("  %s = 0", eq.elem[i].e->Print());
     }
-    dbp("%d parameters", param.n);
+    dbp("%d parameters", param.n); */
 
     param.ClearTags();
     eq.ClearTags();
     
     WriteJacobian(0, 0);
     EvalJacobian();
-
+/*
     for(i = 0; i < mat.m; i++) {
         for(j = 0; j < mat.n; j++) {
             dbp("A[%d][%d] = %.3f", i, j, mat.A.num[i][j]);
         }
-    }
+    } */
 
     GaussJordan();
 
diff --git a/win32/w32main.cpp b/win32/w32main.cpp
index 8b0589a..d32557d 100644
--- a/win32/w32main.cpp
+++ b/win32/w32main.cpp
@@ -108,7 +108,6 @@ static void PaintTextWnd(HDC hdc)
 
     RECT rect;
     GetClientRect(TextWnd, &rect);
-
     // Set up the back-buffer
     HDC backDc = CreateCompatibleDC(hdc);
     int width = rect.right - rect.left;
@@ -206,6 +205,9 @@ void HandleTextWindowScrollBar(WPARAM wParam, LPARAM lParam)
 LRESULT CALLBACK TextWndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
 {
     switch (msg) {
+        case WM_ERASEBKGND:
+            break;
+
         case WM_CLOSE:
         case WM_DESTROY:
             PostQuitMessage(0);
@@ -698,8 +700,7 @@ static void CreateMainWindows(void)
     // We get the desired Alt+Tab behaviour by specifying that the text
     // window is a child of the graphics window.
     TextWnd = CreateWindowEx(0, 
-        "TextWnd", "SolveSpace (Text Window)",
-        WS_THICKFRAME | WS_CLIPCHILDREN,
+        "TextWnd", "SolveSpace (Text Window)", WS_THICKFRAME | WS_CLIPCHILDREN,
         10, 10, 600, 300, GraphicsWnd, (HMENU)NULL, Instance, NULL);
     if(!TextWnd) oops();