From a094eadb72d3d059b765f0d5d46c01c3a4211c87 Mon Sep 17 00:00:00 2001
From: Aki <please@ignore.pl>
Date: Tue, 22 Mar 2022 23:54:20 +0100
Subject: Moved WndProc implementation to own file along low-level keyboard
 funcs

---
 Stars45/WndProc.cpp | 259 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 259 insertions(+)
 create mode 100644 Stars45/WndProc.cpp

(limited to 'Stars45/WndProc.cpp')

diff --git a/Stars45/WndProc.cpp b/Stars45/WndProc.cpp
new file mode 100644
index 0000000..6d80ef3
--- /dev/null
+++ b/Stars45/WndProc.cpp
@@ -0,0 +1,259 @@
+/*  Starshatter: The Open Source Project
+    Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
+    Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
+    Copyright (c) 1997-2006, Destroyer Studios LLC.
+*/
+
+#include "WndProc.h"
+
+#include "Game.h"
+#include "Keyboard.h"
+#include "Mouse.h"
+#include "Types.h"
+
+
+#ifndef WM_MOUSEWHEEL
+#define WM_MOUSEWHEEL 0x20A
+#endif
+
+
+LRESULT CALLBACK
+WndProc(HWND hwnd, UINT message, WPARAM uParam, LPARAM lParam)
+{
+    auto game = Game::GetInstance();
+    switch (message) {
+    case WM_SYSKEYDOWN:
+        if (uParam == VK_TAB || uParam == VK_F4)
+            return DefWindowProc(hwnd, message, uParam, lParam);
+        return 0;
+
+    case WM_MENUCHAR:
+        return MNC_CLOSE << 16;
+
+    case WM_ACTIVATEAPP:
+        // Keep track of whether or not the app is in the foreground
+        if (game)
+            game->Activate(uParam?true:false);
+        break;
+
+    case WM_PAINT:
+        if (!game || !game->OnPaint())
+            return DefWindowProc(hwnd, message, uParam, lParam);
+        break;
+
+    case WM_SETCURSOR:
+        if (game && game->ShowMouse()) {
+            return DefWindowProc(hwnd, message, uParam, lParam);
+        }
+        else {
+            // hide the windows mouse cursor
+            SetCursor(NULL);
+            return 1;
+        }
+        break;
+
+    case WM_ENTERSIZEMOVE:
+        // Halt frame movement while the app is sizing or moving
+        if (game)
+            game->Pause(true);
+        break;
+
+    case WM_SIZE:
+        // Pick up possible changes to window style due to maximize, etc.
+        if (game && game->hwnd != NULL ) {
+            game->window_style = GetWindowLong(game->hwnd, GWL_STYLE );
+
+            if (uParam == SIZE_MINIMIZED) {
+                game->Pause(true); // Pause while we're minimized
+                game->is_minimized = true;
+                game->is_maximized = false;
+            }
+
+            else if (uParam == SIZE_MAXIMIZED) {
+                if (game->is_minimized)
+                game->Pause(false); // Unpause since we're no longer minimized
+
+                game->is_minimized = false;
+                game->is_maximized = true;
+                game->ResizeVideo();
+            }
+
+            else if (uParam == SIZE_RESTORED) {
+                if (game->is_maximized) {
+                    game->is_maximized = false;
+                    game->ResizeVideo();
+                }
+
+                else if (game->is_minimized) {
+                    game->Pause(false); // Unpause since we're no longer minimized
+                    game->is_minimized = false;
+                    game->ResizeVideo();
+                }
+                else {
+                    // If we're neither maximized nor minimized, the window size
+                    // is changing by the user dragging the window edges.  In this
+                    // case, we don't reset the device yet -- we wait until the
+                    // user stops dragging, and a WM_EXITSIZEMOVE message comes.
+                }
+            }
+        }
+        break;
+
+    case WM_EXITSIZEMOVE:
+        if (game) {
+            game->Pause(false);
+            game->ResizeVideo();
+        }
+        break;
+
+    case WM_ENTERMENULOOP:
+        if (game)
+        game->Pause(true);
+        break;
+
+    case WM_EXITMENULOOP:
+        if (game)
+        game->Pause(false);
+        break;
+
+    case WM_KEYDOWN:
+        BufferKey(uParam);
+        return 0;
+
+    case WM_DESTROY:
+        PostQuitMessage(0);
+        break;
+
+    case WM_MOUSEMOVE:
+        Mouse::x = LOWORD(lParam);
+        Mouse::y = HIWORD(lParam);
+        break;
+
+    case WM_LBUTTONDOWN:
+        Mouse::l = 1;
+        break;
+
+    case WM_LBUTTONDBLCLK:
+        Mouse::l = 2;
+        break;
+
+    case WM_LBUTTONUP:
+        Mouse::l = 0;
+        break;
+
+    case WM_MBUTTONDOWN:
+        Mouse::m = 1;
+        break;
+
+    case WM_MBUTTONDBLCLK:
+        Mouse::m = 2;
+        break;
+
+    case WM_MBUTTONUP:
+        Mouse::m = 0;
+        break;
+
+    case WM_RBUTTONDOWN:
+        Mouse::r = 1;
+        break;
+
+    case WM_RBUTTONDBLCLK:
+        Mouse::r = 2;
+        break;
+
+    case WM_RBUTTONUP:
+        Mouse::r = 0;
+        break;
+
+    case WM_MOUSEWHEEL:
+        {
+            int w = (int) (uParam >> 16);
+            if (w > 32000) w -= 65536;
+            Mouse::w += w;
+        }
+        break;
+
+    case WM_CLOSE:
+        if (game) // && game->Server())
+            game->Exit();
+        break;
+
+    default:
+        return DefWindowProc(hwnd, message, uParam, lParam);
+    }
+
+    return 0;
+}
+
+
+const int MAX_KEY_BUF = 512;
+static int vkbuf[MAX_KEY_BUF];
+static int vkshiftbuf[MAX_KEY_BUF];
+static int vkins = 0;
+static int vkext = 0;
+
+
+void
+FlushKeys()
+{
+    Keyboard::FlushKeys();
+    vkins = vkext = 0;
+}
+
+
+void
+BufferKey(int vkey)
+{
+    if (vkey < 1) return;
+
+    int shift = 0;
+
+    if (GetAsyncKeyState(VK_SHIFT))
+    shift |= 1;
+
+    if (GetAsyncKeyState(VK_CONTROL))
+    shift |= 2;
+
+    if (GetAsyncKeyState(VK_MENU))
+    shift |= 4;
+
+    vkbuf[vkins] = vkey;
+    vkshiftbuf[vkins++] = shift;
+
+    if (vkins >= MAX_KEY_BUF)
+    vkins = 0;
+
+    if (vkins == vkext) {
+        vkext++;
+        if (vkext >= MAX_KEY_BUF)
+        vkext = 0;
+    }
+}
+
+
+int
+GetKey()
+{
+    if (vkins == vkext) return 0;
+
+    int result = vkbuf[vkext++];
+    if (vkext >= MAX_KEY_BUF)
+    vkext = 0;
+
+    return result;
+}
+
+
+int
+GetKeyPlus(int& key, int& shift)
+{
+    if (vkins == vkext) return 0;
+
+    key = vkbuf[vkext];
+    shift = vkshiftbuf[vkext++];
+
+    if (vkext >= MAX_KEY_BUF)
+    vkext = 0;
+
+    return key;
+}
-- 
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