win32: add about dialog

1 files changed, 197 insertions, 0 deletions

diff --git a/win32/about.c b/win32/about.c
new file mode 100644
index 0000000..f18c067
--- /dev/null
+++ b/win32/about.c
@@ -0,0 +1,197 @@
+#include "about.h"
+#include <windowsx.h>
+#include <stdbool.h>
+#include <wchar.h>
+#include <stdlib.h>
+#include "version.h"
+
+enum {
+  ID_OK = 0x10
+};
+
+extern HWND g_currentdlg;
+
+static struct {
+  HINSTANCE hinst;
+  void (*closecb)(void *ptr);
+  void *cbptr;
+  HWND about;
+  ATOM about_class;
+  HFONT font, font_large;
+  HWND static_main, static_icon, static_help, static_info, button_ok;
+  wchar_t *soundapiname;
+  bool adpcm_rom, font_rom;
+} g;
+
+static void on_destroy(HWND hwnd) {
+  DestroyWindow(g.static_main);
+  DestroyWindow(g.static_info);
+  DestroyWindow(g.static_help);
+  DestroyWindow(g.static_icon);
+  DestroyWindow(g.button_ok);
+  if (g.closecb) {
+    g.closecb(g.cbptr);
+  }
+  g.about = 0;
+}
+
+static void update_status(void) {
+  static wchar_t buf[1024];
+  swprintf(buf, sizeof(buf)/sizeof(buf[0]),
+           L"Audio API: %ls\r\n"
+           "ym2608_adpcm_rom.bin: %lsavailable\r\n"
+           "font.rom: %ls\r\n"
+           "SSE2 (for SIMD SSG resampling): %lsavailable\r\n"
+           "SSSE3 (for SIMD FMDSP palette lookup): %lsavailable",
+           g.soundapiname ? g.soundapiname : L"",
+           g.adpcm_rom ? L"" : L"un",
+           g.font_rom ? L"available" : L"unavailable, using MS Gothic",
+           __builtin_cpu_supports("sse2") ? L"" : L"un",
+           __builtin_cpu_supports("ssse3") ? L"" : L"un");
+  SetWindowText(g.static_info, buf);
+}
+
+static bool on_create(HWND hwnd, const CREATESTRUCT *cs) {
+  RECT wr = {
+    .left = 0,
+    .top = 0,
+    .right = 480,
+    .bottom = 300
+  };
+  DWORD style = GetWindowLongPtr(hwnd, GWL_STYLE);
+  DWORD exstyle = GetWindowLongPtr(hwnd, GWL_EXSTYLE);
+  AdjustWindowRectEx(&wr, style, 0, exstyle);
+  SetWindowPos(hwnd, HWND_TOP, 0, 0, wr.right-wr.left, wr.bottom-wr.top,
+               SWP_NOZORDER | SWP_NOMOVE);
+  if (!g.font) {
+    NONCLIENTMETRICS ncm;
+    ncm.cbSize = sizeof(ncm);
+    SystemParametersInfo(SPI_GETNONCLIENTMETRICS, sizeof(ncm), &ncm, 0);
+    LONG height = ncm.lfMessageFont.lfHeight;
+    ncm.lfMessageFont.lfHeight = height * 1.2;
+    ncm.lfMessageFont.lfWidth = 0;
+    g.font = CreateFontIndirect(&ncm.lfMessageFont);
+    ncm.lfMessageFont.lfHeight = height * 1.5;
+    ncm.lfMessageFont.lfWidth = 0;
+    g.font_large = CreateFontIndirect(&ncm.lfMessageFont);
+  }
+  g.static_icon = CreateWindowEx(0, L"static",
+                                 MAKEINTRESOURCE(1),
+                                 WS_CHILD | WS_VISIBLE | SS_ICON,
+                                 100, 10, 32, 32,
+                                 hwnd, 0, g.hinst, 0);
+#ifdef _WIN64
+#define ABOUT_ARCH "(amd64)"
+#else
+#define ABOUT_ARCH "(i586)"
+#endif
+  g.static_info = CreateWindowEx(0, L"static",
+                                 L"",
+                                 WS_CHILD | WS_VISIBLE,
+                                 75, 50, 400, 90,
+                                 hwnd, 0, g.hinst, 0);
+  SetWindowFont(g.static_info, g.font, TRUE);
+  update_status();
+  g.static_help = CreateWindowEx(0, L"static",
+                                 L"F11: toggle track display page\r\n"
+                                 "F12: display FMDSP at 2x\r\n"
+                                 "Ctrl+F1-F10: FMDSP color palette\r\n\r\n"
+                                 "1-9,0,-: toggle track mask (Ctrl: PPZ8)\r\n"
+                                 "Shift+1-9,0,-: track solo\r\n"
+                                 "=: invert all mask\r\n"
+                                 "\\: all tracks on",
+                                 WS_CHILD | WS_VISIBLE,
+                                 75, 140, 400, 400,
+                                 hwnd, 0, g.hinst, 0);
+  SetWindowFont(g.static_help, g.font, TRUE);
+  g.static_main = CreateWindowEx(0, L"static",
+                                 L"FMPlayer/Win32 " ABOUT_ARCH " v" FMPLAYER_VERSION_STR,
+                                 WS_CHILD | WS_VISIBLE,
+                                 150, 10, 400, 40,
+                                 hwnd, 0, g.hinst, 0);
+  SetWindowFont(g.static_main, g.font_large, TRUE);
+  g.button_ok = CreateWindowEx(0, L"button",
+                               L"&OK",
+                               WS_CHILD | WS_VISIBLE | WS_TABSTOP | BS_DEFPUSHBUTTON,
+                               200, 270, 80, 25,
+                               hwnd, (HMENU)ID_OK, g.hinst, 0);
+  SetWindowFont(g.button_ok, g.font, TRUE);
+  ShowWindow(hwnd, SW_SHOW);
+  return true;
+}
+
+static void on_activate(HWND hwnd, bool activate, HWND targetwnd, WINBOOL state) {
+  if (activate) g_currentdlg = hwnd;
+  else g_currentdlg = 0;
+}
+
+static void on_command(HWND hwnd, int id, HWND hwnd_c, UINT code) {
+  if (code == BN_CLICKED && (id == ID_OK)) {
+    DestroyWindow(hwnd);
+  }
+}
+
+static LRESULT CALLBACK wndproc(
+  HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam
+) {
+  switch (msg) {
+  HANDLE_MSG(hwnd, WM_DESTROY, on_destroy);
+  HANDLE_MSG(hwnd, WM_CREATE, on_create);
+  HANDLE_MSG(hwnd, WM_ACTIVATE, on_activate);
+  HANDLE_MSG(hwnd, WM_COMMAND, on_command);
+  }
+  return DefWindowProc(hwnd, msg, wParam, lParam);
+}
+
+void about_open(HINSTANCE hinst, HWND parent, void (*closecb)(void *ptr), void *cbptr) {
+  g.closecb = closecb;
+  g.cbptr = cbptr;
+  g.hinst = hinst;
+  if (!g.about) {
+    if (!g.about_class) {
+      WNDCLASS wc = {0};
+      wc.lpfnWndProc = wndproc;
+      wc.hInstance = g.hinst;
+      wc.hIcon = LoadIcon(g.hinst, MAKEINTRESOURCE(1));
+      wc.hCursor = LoadCursor(0, IDC_ARROW);
+      wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE+1);
+      wc.lpszClassName = L"myon_fmplayer_ym2608_about";
+      g.about_class = RegisterClass(&wc);
+    }
+    if (!g.about_class) {
+      MessageBox(parent, L"Cannot register class", L"Error", MB_ICONSTOP);
+      return;
+    }
+    g.about = CreateWindowEx(0,
+                             MAKEINTATOM(g.about_class),
+                             L"About",
+                             WS_CAPTION | WS_SYSMENU,
+                             CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
+                             parent, 0, g.hinst, 0);
+  } else {
+    SetForegroundWindow(g.about);
+  }
+}
+
+void about_setsoundapiname(const wchar_t *apiname) {
+  free(g.soundapiname);
+  g.soundapiname = wcsdup(apiname);
+  if (g.about) update_status();
+}
+
+void about_set_fontrom_loaded(bool loaded) {
+  g.font_rom = loaded;
+  if (g.about) update_status();
+}
+
+void about_set_adpcmrom_loaded(bool loaded) {
+  g.adpcm_rom = loaded;
+  if (g.about) update_status();
+}
+
+void about_close(void) {
+  if (g.about) {
+    g.closecb = 0;
+    DestroyWindow(g.about);
+  }
+}