From 295d423cc47f9ee8a72134dc544892a03b279311 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?John=20Ankarstr=C3=B6m?= <john@ankarstrom.se>
Date: Sun, 10 Jul 2022 23:23:09 +0200
Subject: Convert to C++.

I already hit upon some object-oriented programming patterns in
*listview.c, so I felt that it would be natural to use this as an
opportunity to learn C++.
---
 c/defs.h | 71 +++++++++++++++++++++++++++++++++++++++-------------------------
 1 file changed, 43 insertions(+), 28 deletions(-)

(limited to 'c/defs.h')

diff --git a/c/defs.h b/c/defs.h
index 8196a93..9f53c92 100644
--- a/c/defs.h
+++ b/c/defs.h
@@ -5,36 +5,51 @@
 #include <commctrl.h>
 #include <SWI-Prolog.h>
 
-/* common.c */
+/* common.cpp */
 TCHAR *TszFromSz(const char *, int);
 
-/* main.c */
+/* main.cpp */
 void UpdateLayout();
 
-/* listview.c */
-HWND LvCreate(HMENU, DWORD);
-int LvHeight(HWND, int);
-
-/* episodelistview.c */
-HWND ElvCreate();
-void ElvDoSort(void);
-LRESULT ElvHandleNotify(LPARAM);
-void ElvRedraw(void);
-void ElvSetTop(int);
-void ElvSelectFocus(void);
-void ElvSelectUnwatched(int);
-void ElvShowFocus(void);
-void ElvUpdate(void);
-void ElvUpdateItem(LPLVITEM);
-
-/* datalistview.c */
-HWND DlvCreate();
-void DlvShowEpisode(int);
-
-/* pl.c */
-int Pl(char *, char *, char *, ...);
-int Plp(term_t, char *, ...);
-int Plg(term_t, char *, ...);
+/* listview.cpp */
+class ListView {
+protected:
+	WNDPROC m_prevProc;
+	HWND m_hWnd;
+public:
+	void Create(HMENU, DWORD);
+	int Height(int);
+	HWND HWnd(void);
+	virtual LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
+};
+
+/* episodelistview.cpp */
+class EpisodeListView: public ListView {
+public:
+	void Create(void);
+	void DoSort(void);
+	LRESULT HandleNotify(LPARAM);
+	void Redraw(void);
+	void SetTop(int);
+	void SelectFocus(void);
+	void SelectUnwatched(int);
+	void ShowFocus(void);
+	void Update(void);
+	void UpdateItem(LPLVITEM);
+	LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
+};
+
+/* datalistview.cpp */
+class DataListView: public ListView {
+public:
+	void Create(void);
+	void ShowEpisode(int);
+};
+
+/* pl.cpp */
+int Pl(const char *, const char *, const char *, ...);
+int Plp(term_t, const char *, ...);
+int Plg(term_t, const char *, ...);
 
 /* defs.h */
 #define DLVSIKEY 0
@@ -56,8 +71,8 @@ Cmp(int a, int b)
 inline int
 Dpi(int i)
 {
-	extern int IDPI;
-	return MulDiv(i, IDPI, 96);
+	extern int g_iDPI;
+	return MulDiv(i, g_iDPI, 96);
 }
 
 #endif
-- 
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