misc fixes

testkeys:
* Clean up and modernise code
* Use std::endl to end lines for its implicit flush
* Centre window (less likely to hide behind taskbar, etc.)

osdwin:
* Ensure new windows are positioned within the work area of a monitor

src/osd/modules/osdhelper.h

@@ -6,23 +6,23 @@
 //
 //============================================================
 
-#pragma once
+#ifndef MAME_OSD_MODULES_OSDHELPER_H
+#define MAME_OSD_MODULES_OSDHELPER_H
 
-#ifndef __OSDHELPER__
-#define __OSDHELPER__
+#pragma once
 
 class osd_dim
 {
 public:
-	osd_dim(const int &w, const int &h)
-	: m_w(w), m_h(h)
-	{
-	}
-	int width() const { return m_w; }
-	int height() const { return m_h; }
+	constexpr osd_dim() : m_w(0), m_h(0) { }
+	constexpr osd_dim(int w, int h) : m_w(w), m_h(h) { }
+
+	constexpr int width() const { return m_w; }
+	constexpr int height() const { return m_h; }
+
+	constexpr bool operator!=(const osd_dim &other) { return (m_w != other.width()) || (m_h != other.height()); }
+	constexpr bool operator==(const osd_dim &other) { return (m_w == other.width()) && (m_h == other.height()); }
 
-	bool operator!=(const osd_dim &other) { return (m_w != other.width()) || (m_h != other.height()); }
-	bool operator==(const osd_dim &other) { return (m_w == other.width()) && (m_h == other.height()); }
 private:
 	int m_w;
 	int m_h;
@@ -31,30 +31,25 @@ private:
 class osd_rect
 {
 public:
-	osd_rect()
-	: m_x(0), m_y(0), m_d(0,0)
-	{
-	}
-	osd_rect(const int x, const int y, const int &w, const int &h)
-	: m_x(x), m_y(y), m_d(w,h)
-	{
-	}
-	osd_rect(const int x, const int y, const osd_dim &d)
-	: m_x(x), m_y(y), m_d(d)
-	{
-	}
-	int top() const { return m_y; }
-	int left() const { return m_x; }
-	int width() const { return m_d.width(); }
-	int height() const { return m_d.height(); }
+	constexpr osd_rect() : m_x(0), m_y(0), m_d(0, 0) { }
+	constexpr osd_rect(int x, int y, int w, int h) : m_x(x), m_y(y), m_d(w, h) { }
+	constexpr osd_rect(int x, int y, const osd_dim &d) : m_x(x), m_y(y), m_d(d) { }
 
-	osd_dim dim() const { return m_d; }
+	constexpr int left() const { return m_x; }
+	constexpr int top() const { return m_y; }
+	constexpr int width() const { return m_d.width(); }
+	constexpr int height() const { return m_d.height(); }
 
-	int bottom() const { return m_y + m_d.height(); }
-	int right() const { return m_x + m_d.width(); }
+	constexpr osd_dim dim() const { return m_d; }
 
-	osd_rect move_by(int dx, int dy) const { return osd_rect(m_x + dx, m_y + dy, m_d); }
-	osd_rect resize(int w, int h) const { return osd_rect(m_x, m_y, w, h); }
+	constexpr int right() const { return m_x + m_d.width(); }
+	constexpr int bottom() const { return m_y + m_d.height(); }
+
+	constexpr osd_rect move_by(int dx, int dy) const { return osd_rect(m_x + dx, m_y + dy, m_d); }
+	constexpr osd_rect resize(int w, int h) const { return osd_rect(m_x, m_y, w, h); }
+
+	constexpr bool operator!=(const osd_rect &other) { return (m_x != other.left()) || (m_y != other.top()) || (m_d != other.dim()); }
+	constexpr bool operator==(const osd_rect &other) { return (m_x == other.left()) && (m_y == other.top()) && (m_d == other.dim()); }
 
 private:
 	int m_x;
@@ -62,4 +57,4 @@ private:
 	osd_dim m_d;
 };
 
-#endif // __OSDHELPER__
+#endif // MAME_OSD_MODULES_OSDHELPER_H

src/osd/windows/video.h

@@ -1,19 +1,29 @@
 // license:BSD-3-Clause
-// copyright-holders:Aaron Giles
+// copyright-holders:Aaron Giles, Vas Crabb
 //============================================================
 //
-//  video.h - Win32 implementation of MAME video routines
+//  video.h - Win32 video helpers
 //
 //============================================================
+#ifndef MAME_OSD_WINDOWS_VIDEO_H
+#define MAME_OSD_WINDOWS_VIDEO_H
 
-#ifndef __WIN_VIDEO__
-#define __WIN_VIDEO__
+#pragma once
 
 #include "modules/osdhelper.h"
 
-inline osd_rect RECT_to_osd_rect(const RECT &r)
+#include <windows.h>
+
+
+constexpr osd_rect RECT_to_osd_rect(RECT const &r)
 {
 	return osd_rect(r.left, r.top, r.right - r.left, r.bottom - r.top);
 }
 
-#endif
+inline RECT osd_rect_to_RECT(osd_rect const &r)
+{
+	RECT const result{ r.left(), r.top(), r.right(), r.bottom() };
+	return result;
+}
+
+#endif // MAME_OSD_WINDOWS_VIDEO_H

src/osd/windows/window.cpp

@@ -15,6 +15,7 @@
 #include <process.h>
 
 #include <atomic>
+#include <cstring>
 #include <chrono>
 #include <list>
 #include <memory>
@@ -1715,17 +1716,35 @@ void win_window_info::adjust_window_position_after_major_change()
 		if (video_config.keepaspect)
 			newrect = constrain_to_aspect_ratio(newrect, WMSZ_BOTTOMRIGHT);
 	}
-
-	// in full screen, make sure it covers the primary display
 	else
 	{
+		// in full screen, make sure it covers the primary display
 		std::shared_ptr<osd_monitor_info> monitor = monitor_from_rect(nullptr);
 		newrect = monitor->position_size();
 	}
 
+	// restrict the window to one monitor and avoid toolbars if possible
+	HMONITOR const nearest_monitor = MonitorFromWindow(platform_window(), MONITOR_DEFAULTTONEAREST);
+	if (NULL != nearest_monitor)
+	{
+		MONITORINFO info;
+		std::memset(&info, 0, sizeof(info));
+		info.cbSize = sizeof(info);
+		if (GetMonitorInfo(nearest_monitor, &info))
+		{
+			if (newrect.right() > info.rcWork.right)
+				newrect = newrect.move_by(info.rcWork.right - newrect.right(), 0);
+			if (newrect.bottom() > info.rcWork.bottom)
+				newrect = newrect.move_by(0, info.rcWork.bottom - newrect.bottom());
+			if (newrect.left() < info.rcWork.left)
+				newrect = newrect.move_by(info.rcWork.left - newrect.left(), 0);
+			if (newrect.top() < info.rcWork.top)
+				newrect = newrect.move_by(0, info.rcWork.top - newrect.top());
+		}
+	}
+
 	// adjust the position if different
-	if (oldrect.left != newrect.left() || oldrect.top != newrect.top() ||
-		oldrect.right != newrect.right() || oldrect.bottom != newrect.bottom())
+	if (RECT_to_osd_rect(oldrect) != newrect)
 		SetWindowPos(platform_window(), fullscreen() ? HWND_TOPMOST : HWND_TOP,
 				newrect.left(), newrect.top(),
 				newrect.width(), newrect.height(), 0);

src/tools/testkeys.cpp

@@ -10,25 +10,21 @@
 //
 //============================================================
 
-#include <stdio.h>
-#include <ctype.h>
-#include <string.h>
-#include <wchar.h>
+#include "osdcore.h"
 
 #include "SDL2/SDL.h"
-#include "osdcore.h"
+
+#include <iostream>
+#include <string>
 
 //#include "unicode.h"
 
-struct key_lookup_table
-{
-	int code;
-	const char *name;
-};
+
+struct key_lookup_table { int code; const char *name; };
 
 #define KE(x) { SDL_SCANCODE_##x, "SDL_SCANCODE_" #x },
 
-static key_lookup_table sdl_lookup[] =
+static constexpr key_lookup_table sdl_lookup[] =
 {
     KE(UNKNOWN)
 
@@ -287,58 +283,56 @@ static key_lookup_table sdl_lookup[] =
 
     KE(APP1)
     KE(APP2)
-
-
-	{-1, ""}
 };
 
-static const char * lookup_key_name(const key_lookup_table *kt, int kc)
+static char const *lookup_key_name(int kc)
 {
-	int i=0;
-	while (kt[i].code>=0)
+	for (key_lookup_table const &k : sdl_lookup)
 	{
-		if (kc==kt[i].code)
-			return kt[i].name;
-		i++;
+		if (k.code == kc)
+			return k.name;
 	}
-	return NULL;
+	return nullptr;
 }
 
 int main(int argc, char *argv[])
 {
-	SDL_Event event;
-	int quit = 0;
-	char lasttext[20] = "";
-
 	if (SDL_Init(SDL_INIT_VIDEO) < 0) {
-		fprintf(stderr, "Couldn't initialize SDL: %s\n",
-							SDL_GetError());
+		fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
 		exit(1);
 	}
-	SDL_CreateWindow("Input Test", 0, 0, 100, 100,0 );
+	SDL_CreateWindow("Input Test", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 100, 100, 0);
 
+	SDL_Event event;
+	bool quit = false;
+	std::string lasttext;
 	while (SDL_PollEvent(&event) || !quit) {
 		switch(event.type) {
 		case SDL_QUIT:
-			quit = 1;
+			quit = true;
 			break;
 		case SDL_KEYDOWN:
-			if (event.key.keysym.sym == SDLK_ESCAPE)
-				quit=1;
-			else
-			{
-				printf("ITEM_ID_XY %s %s\n",
-					lookup_key_name(sdl_lookup, event.key.keysym.scancode), "");
-				lasttext[0] = 0;
+			if (event.key.keysym.sym == SDLK_ESCAPE) {
+				quit = true;
+			} else {
+				std::cout
+					<< "ITEM_ID_XY "
+					<< lookup_key_name(event.key.keysym.scancode)
+					<< ' '
+					<< std::endl;
+				lasttext.clear();
 			}
 			break;
 		case SDL_KEYUP:
-			printf("ITEM_ID_XY %s %s\n",
-					lookup_key_name(sdl_lookup, event.key.keysym.scancode), lasttext);
+			std::cout
+				<< "ITEM_ID_XY "
+				<< lookup_key_name(event.key.keysym.scancode)
+				<< ' '
+				<< lasttext
+				<< std::endl;
 			break;
-
 		case SDL_TEXTINPUT:
-			strcpy(lasttext, event.text.text);
+			lasttext = event.text.text;
 			break;
 		}
 		event.type = 0;