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window_win32.cpp
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window_win32.cpp
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#include "stdafx.h"
#if !defined(WITH_SDL)
#include "window.h"
#include <stdio.h>
#include "Resource.h"
#include "types.h"
#include <Sddl.h>
#include <wininet.h>
#include <string>
#include <Shellapi.h>
#include "zipfile.h"
#include <D2D1.h>
#include <Wincodec.h>
#include <Shlwapi.h>
#include <shellapi.h>
#include <mmsystem.h>
extern "C" {
#include "tiny_spotify.h"
};
#pragma comment (lib, "ws2_32.lib")
#pragma comment (lib, "wininet.lib")
#pragma comment (lib, "Msimg32.lib")
#pragma comment (lib, "Shlwapi.lib")
#pragma comment (lib, "Windowscodecs.lib")
#ifndef _DEBUG
#pragma comment(linker, "/SUBSYSTEM:WINDOWS")
#endif
void VisPlugin_Stop();
static std::string g_auto_update_msg, g_auto_update_caption, g_auto_update_url;
static int g_auto_update_flags;
bool g_auto_update_available;
static HINSTANCE hInst; // current instance
static Point g_drag_start;
bool PlatformWindow::g_easy_move;
static BOOL CALLBACK MonitorEnumProc(HMONITOR hMonitor, HDC hdcMonitor, LPRECT lprcMonitor, LPARAM dwData) {
MONITORINFO info;
info.cbSize = sizeof(info);
if (g_num_monitor_rects < 16 && GetMonitorInfo(hMonitor, &info))
memcpy(&g_monitor_rects[g_num_monitor_rects++], &info.rcWork, sizeof(Rect));
return TRUE;
}
void PlatformWindow::FindMonitors() {
g_num_monitor_rects = 0;
EnumDisplayMonitors(NULL,NULL,MonitorEnumProc,NULL);
}
// Forward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
static LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
static LRESULT CALLBACK WndProcVis(HWND, UINT, WPARAM, LPARAM);
PlatformWindow::PlatformWindow() {
active_window_ = true;
shellhook_message_ = 0;
selected_bmp_ = NULL;
hwnd_ = NULL;
vis_hwnd_ = NULL;
bmp_screen_ = NULL;
bmpdc_ = NULL;
srcdc_ = NULL;
last_window_rgn_size_.x = last_window_rgn_size_.y = NULL;
}
PlatformWindow::~PlatformWindow() {
if (hwnd_) DestroyWindow(hwnd_);
if (vis_hwnd_) DestroyWindow(vis_hwnd_);
}
void PlatformWindow::Blit(int dx, int dy, int w, int h, Bitmap *src, int sx, int sy) {
HBITMAP srcb = (HBITMAP)src;
if (srcb != selected_bmp_) {
selected_bmp_ = srcb;
SelectObject(srcdc_, srcb);
}
BitBlt(bmpdc_, dx, dy, w, h, srcdc_, sx, sy, SRCCOPY);
}
void PlatformWindow::AlphaBlit(int dx, int dy, int w, int h, Bitmap *src, int sx, int sy) {
HBITMAP srcb = (HBITMAP)src;
if (srcb != selected_bmp_) {
selected_bmp_ = srcb;
SelectObject(srcdc_, srcb);
}
BLENDFUNCTION blend = {AC_SRC_OVER, 0, 255, AC_SRC_ALPHA};
AlphaBlend(bmpdc_, dx, dy, w, h, srcdc_, sx, sy, w, h, blend);
}
void PlatformWindow::StretchBlit(int dx, int dy, int w, int h, Bitmap *src, int sx, int sy, int sw, int sh) {
HBITMAP srcb = (HBITMAP)src;
if (srcb != selected_bmp_) {
selected_bmp_ = srcb;
SelectObject(srcdc_, srcb);
}
StretchBlt(bmpdc_, dx, dy, w, h, srcdc_, sx, sy, sw, sh, SRCCOPY);
}
void PlatformWindow::Fill(int x, int y, int w, int h, unsigned int color) {
RECT rect = {x, y, x+w, y+h};
COLORREF old = ::SetBkColor(bmpdc_, color & 0xffffff);
::ExtTextOut(bmpdc_, 0, 0, ETO_OPAQUE, &rect, NULL, 0, NULL);
::SetBkColor(bmpdc_, old);
}
void PlatformWindow::DrawText(int x, int y, int w, int h,
const char *text, int flags, unsigned int color) {
wchar_t buffer[1024];
RECT rect = {x, y, x + w, y + h};
int len = MultiByteToWideChar(CP_UTF8, 0, text, -1, buffer, 1024);
if (len > 0) {
::SetTextColor(bmpdc_, color);
::DrawTextW(bmpdc_, buffer, len - 1, &rect, (flags&1) ?
DT_END_ELLIPSIS | DT_RIGHT | DT_VCENTER | DT_NOPREFIX :
DT_END_ELLIPSIS | DT_LEFT | DT_VCENTER | DT_NOPREFIX);
}
}
void PlatformWindow::Line(int x, int y, int x2, int y2, unsigned int color) {
HPEN pen = ::CreatePen(PS_SOLID, 1, color);
HPEN old_pen = (HPEN)::SelectObject(bmpdc_, pen);
::MoveToEx(bmpdc_, x, y, NULL);
::LineTo(bmpdc_, x2, y2);
::SelectObject(bmpdc_, old_pen);
::DeleteObject(pen);
}
static std::string last_font;
static int last_font_size;
static HFONT last_font_handle;
void PlatformWindow::SetFont(const char *fontname, int size) {
if (fontname != last_font || last_font_size != size) {
last_font = fontname;
last_font_size = size;
if (last_font_handle)
DeleteObject(last_font_handle);
int size = -MulDiv(last_font_size, GetDeviceCaps(bmpdc_, LOGPIXELSY), 96);
last_font_handle = CreateFontA(size, 0, 0, 0, FALSE, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
CLIP_DEFAULT_PRECIS, CLEARTYPE_QUALITY , DEFAULT_PITCH, last_font.c_str());
}
SelectObject(bmpdc_, last_font_handle);
}
int PlatformWindow::GetFontHeight() {
TEXTMETRIC tm;;
if (!GetTextMetrics(bmpdc_, &tm))
return 10;
return tm.tmHeight;
}
void PlatformWindow::PlatformPaint(HDC dc) {
bmpdc_ = CreateCompatibleDC(dc);
srcdc_ = CreateCompatibleDC(dc);
::SetBkMode(bmpdc_, TRANSPARENT);
::SetStretchBltMode(bmpdc_, COLORONCOLOR);
if (bmp_screen_) {
BITMAP b;
if (!GetObject(bmp_screen_, sizeof(b), &b) || b.bmWidth != width_ || b.bmHeight != height_) {
DeleteBitmap(bmp_screen_);
bmp_screen_ = NULL;
}
}
if (!bmp_screen_)
bmp_screen_ = CreateCompatibleBitmap(dc, width_, height_);
SelectObject(bmpdc_, bmp_screen_);
selected_bmp_ = NULL;
// Copy the dirty region to the bitmap
if (!double_size_) {
HRGN rgn = CreateRectRgn(0, 0, 0, 0);
GetRandomRgn(dc, rgn, SYSRGN);
POINT pt = {0, 0};
MapWindowPoints(NULL, hwnd_, &pt, 1);
OffsetRgn(rgn, pt.x, pt.y);
SelectClipRgn(bmpdc_, rgn);
DeleteObject(rgn);
} else {
RECT rect;
GetClipBox(dc, &rect);
rect.left >>= 1;
rect.top >>= 1;
rect.right = (rect.right + 1) >> 1;
rect.bottom = (rect.bottom + 1) >> 1;
HRGN rgn = CreateRectRgn(rect.left, rect.top, rect.right, rect.bottom);
SelectClipRgn(bmpdc_, rgn);
DeleteObject(rgn);
}
// Invoke subclass to do the actual drawing
Paint();
StretchBlt(dc, 0, 0, width_<<(int)double_size_, height_<<(int)double_size_, bmpdc_, 0, 0, width_, height_, SRCCOPY);
DeleteDC(bmpdc_);
DeleteDC(srcdc_);
bmpdc_ = srcdc_ = 0;
}
void PlatformWindow::Repaint() {
if (hwnd_)
InvalidateRect(hwnd_, NULL, FALSE);
}
void PlatformWindow::RepaintRange(int x, int y, int w, int h) {
if (hwnd_) {
RECT r = {x << (int)double_size_, y << (int)double_size_,
(x + w) << (int)double_size_, (y + h) << (int)double_size_};
InvalidateRect(hwnd_, &r, FALSE);
}
}
void PlatformWindow::SetPixel(int x, int y, unsigned int color) {
::SetPixelV(bmpdc_, x, y, (COLORREF)color);
}
unsigned int PlatformWindow::GetBitmapPixel(Bitmap *src, int x, int y) {
HBITMAP srcb = (HBITMAP)src;
if (srcb != selected_bmp_) {
selected_bmp_ = srcb;
SelectObject(srcdc_, srcb);
}
return GetPixel(srcdc_, x, y);
}
// Move all windows so they correspond to the screen rects.
void PlatformWindow::MoveAllWindows() {
HDWP dp = BeginDeferWindowPos(16);
for(PlatformWindow *w = g_platform_windows; w; w = w->next()) {
if (w->need_move_) {
const Rect *r = w->screen_rect();
dp = DeferWindowPos(dp, w->handle(), NULL,
r->left, r->top,
r->right - r->left, r->bottom - r->top, SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE);
w->need_move_ = false;
}
}
EndDeferWindowPos(dp);
}
void PlatformWindow::Move(int l, int t) {
if (hwnd_) {
SetWindowPos(hwnd_, 0, l, t, 0, 0, SWP_NOSIZE | SWP_NOACTIVATE | SWP_NOREPOSITION);
}
}
void PlatformWindow::AlwaysOnTopChanged() {
if (hwnd_) {
SetWindowPos(hwnd_, always_on_top_ ? HWND_TOPMOST : HWND_NOTOPMOST, 0, 0,
0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOCOPYBITS | SWP_NOACTIVATE);
}
}
void PlatformWindow::Minimize() {
ShowWindow(hwnd_, SW_MINIMIZE);
}
void PlatformWindow::BringWindowToTop() {
if (hwnd_)
::BringWindowToTop(hwnd_);
}
void PlatformWindow::VisibleChanged() {
if (hwnd_)
ShowWindow(hwnd_, visible_ ? SW_SHOWNA : SW_HIDE);
}
void PlatformWindow::RegisterForGlobalHotkeys() {
if (!shellhook_message_)
shellhook_message_ = RegisterWindowMessage(TEXT("SHELLHOOK"));
if (hwnd_) {
typedef BOOL WINAPI RegisterShellHookWindowProc(HWND hWnd);
RegisterShellHookWindowProc *proc = (RegisterShellHookWindowProc*)GetProcAddress(GetModuleHandleA("user32.dll"), "RegisterShellHookWindow");
if (proc)
proc(hwnd_);
}
}
void PlatformWindow::InitDraggingOrSizing() {
::GetCursorPos((POINT*)&g_drag_start);
}
void PlatformWindow::Create(PlatformWindow *owner_window) {
PlatformWindowBase::Create(owner_window);
hwnd_ = ::CreateWindowEx(owner_window ? 0 : WS_EX_WINDOWEDGE, owner_window ? L"SpotiambWnd" : L"SpotiambMain",
owner_window ? L"" : L"Spotiamb",
owner_window ? WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE :
WS_CAPTION | WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_VISIBLE | WS_MINIMIZEBOX | WS_SYSMENU,
CW_USEDEFAULT, 200, width_ << (int)double_size_, height_ << (int)double_size_,
owner_window ? owner_window->handle() : NULL, NULL, hInst, this);
if (!hwnd_)
return;
if (shellhook_message_)
RegisterForGlobalHotkeys();
if (owner_window == NULL) {
SetTimer(hwnd_, 13, 10, NULL);
SetTimer(hwnd_, 14, 200, NULL);
}
if (visible_) {
ShowWindow(hwnd_, SW_SHOW);
UpdateWindow(hwnd_);
}
}
ATOM MyRegisterClass(HINSTANCE hInstance) {
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_SPOTIFYAMP));
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = NULL;
wcex.lpszMenuName = NULL;
wcex.lpszClassName = L"SpotiambWnd";
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SPOTIFYAMP));
RegisterClassEx(&wcex);
wcex.lpszClassName = L"SpotiambMain";
RegisterClassEx(&wcex);
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS;
wcex.lpfnWndProc = WndProcVis;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = 0;
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
wcex.hbrBackground = GetStockBrush(BLACK_BRUSH);
wcex.lpszMenuName = NULL;
wcex.lpszClassName = L"SpotiambVis";
wcex.hIconSm = NULL;
RegisterClassEx(&wcex);
return true;
}
void PlatformWindow::NotifyIOEvents() {
::PostMessage(hwnd_, WM_USER + 100, 0, 0);
}
LRESULT HandlePluginApi(WPARAM wParam, LPARAM lParam);
BOOL PlatformWindow::WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam, LRESULT *retval) {
PAINTSTRUCT ps;
HDC hdc;
switch (message) {
case WM_USER:
case WM_USER + 1:
case WM_USER + 2:
case WM_USER + 3:
if (lParam == 201) return 0;
*retval = HandlePluginApi(wParam, lParam);
break;
case WM_USER + 100:
PumpIOEvents();
return 0;
case WM_CLOSE:
if (this == g_main_window)
PostQuitMessage(0);
break;
case WM_PAINT:
hdc = BeginPaint(hWnd, &ps);
PlatformPaint(hdc);
EndPaint(hWnd, &ps);
break;
case WM_TIMER:
if (wParam == 13) {
MainLoop();
} else if (wParam == 14) {
ScrollText();
}
break;
case WM_ERASEBKGND:
*retval = TRUE;
break;
case WM_KEYDOWN: {
int ss = (GetAsyncKeyState(VK_CONTROL) < 0) * MOD_CONTROL +
(GetAsyncKeyState(VK_SHIFT) < 0) * MOD_SHIFT +
(GetAsyncKeyState(VK_MENU) < 0) * MOD_ALT;
KeyDown(wParam, ss);
} break;
case WM_SYSKEYDOWN: {
if (wParam < 'A' || wParam > 'Z')
return FALSE;
KeyDown(wParam, MOD_ALT);
} break;
case WM_SYSCHAR: {
if ( (wParam | 32) >= 'a' && (wParam | 32) <= 'z')
return TRUE;
return FALSE;
}
case WM_LBUTTONDOWN: {
SetCapture(hWnd);
int d = double_size();
int x = GET_X_LPARAM(lParam) >> d, y = GET_Y_LPARAM(lParam) >> d;
LeftButtonDown(x,y);
if (dragable_) {
InitWindowDragging();
}
break;
}
case WM_RBUTTONDOWN: {
int d = double_size();
int x = GET_X_LPARAM(lParam) >> d, y = GET_Y_LPARAM(lParam) >> d;
RightButtonDown(x,y);
break;
}
case WM_RBUTTONUP: {
int d = double_size();
int x = GET_X_LPARAM(lParam) >> d, y = GET_Y_LPARAM(lParam) >> d;
RightButtonUp(x,y);
break;
}
case WM_LBUTTONDBLCLK: {
int d = double_size();
int x = GET_X_LPARAM(lParam) >> d, y = GET_Y_LPARAM(lParam) >> d;
LeftButtonDouble(x,y);
break;
}
case WM_LBUTTONUP: {
g_num_drag_windows = 0;
ReleaseCapture();
int d = double_size();
int x = GET_X_LPARAM(lParam) >> d, y = GET_Y_LPARAM(lParam) >> d;
LeftButtonUp(x,y);
break;
}
case WM_WINDOWPOSCHANGED: {
GetWindowRect(hWnd, (RECT*)&screen_rect_);
if (last_window_rgn_size_.x != screen_rect_.right - screen_rect_.left ||
last_window_rgn_size_.y != screen_rect_.bottom - screen_rect_.top) {
last_window_rgn_size_.x = screen_rect_.right - screen_rect_.left;
last_window_rgn_size_.y = screen_rect_.bottom - screen_rect_.top;
SetWindowRgn(hWnd, CreateRectRgn(0, 0, screen_rect_.right - screen_rect_.left, screen_rect_.bottom - screen_rect_.top), FALSE);
}
need_move_ = false;
break;
}
case WM_MOUSEWHEEL: {
int d = double_size();
int x = GET_X_LPARAM(lParam) >> d, y = GET_Y_LPARAM(lParam) >> d;
MouseWheel(x,y,0,GET_WHEEL_DELTA_WPARAM(wParam));
break;
}
case WM_MOUSEMOVE: {
int d = double_size();
int x = GET_X_LPARAM(lParam) >> d, y = GET_Y_LPARAM(lParam) >> d;
MouseMove(x,y);
if (g_num_drag_windows != 0) {
Point pt;
GetCursorPos((POINT*)&pt);
pt = HandleMouseDragOrSize(pt.x - g_drag_start.x, pt.y - g_drag_start.y, GetAsyncKeyState(VK_SHIFT) >= 0);
g_drag_start.x += pt.x;
g_drag_start.y += pt.y;
}
break;
}
case WM_HOTKEY:
GlobalHotkey(wParam);
break;
case WM_ACTIVATE:
SetActive(wParam != WA_INACTIVE);
break;
case WM_NCCALCSIZE:
*retval = 0xF0u ;
break;
case WM_NCHITTEST:
*retval = HTCLIENT;
break;
case WM_NCACTIVATE:
*retval = TRUE;
break;
case WM_NCPAINT:
break;
case WM_GETMINMAXINFO: {
((MINMAXINFO*)lParam)->ptMinTrackSize.x = 0;
((MINMAXINFO*)lParam)->ptMinTrackSize.y = 0;
break;
}
case WM_WINDOWPOSCHANGING:
break;
case WM_APPCOMMAND: {
if (HandleAppCommandHotKeys(GET_APPCOMMAND_LPARAM(lParam),
GET_KEYSTATE_LPARAM(lParam))) {
*retval = 1;
} else {
return FALSE;
}
}
default:
if (shellhook_message_ && message == shellhook_message_) {
if (wParam == HSHELL_APPCOMMAND) {
HandleAppCommandHotKeys(GET_APPCOMMAND_LPARAM(lParam),
GET_KEYSTATE_LPARAM(lParam));
}
*retval = 1;
return TRUE;
}
return FALSE;
}
return TRUE;
}
static LRESULT WINAPI WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
if (message == WM_NCCREATE) {
((PlatformWindow*)((CREATESTRUCT*)lParam)->lpCreateParams)->hwnd_ = hWnd;
}
for(PlatformWindow *w = g_platform_windows; w; w = w->next_) {
if (w->handle() == hWnd) {
LRESULT retval = 0;
if (w->WndProc(hWnd, message, wParam, lParam, &retval))
return retval;
break;
}
}
return DefWindowProc(hWnd, message, wParam, lParam);
}
extern int vismode;
static LRESULT CALLBACK WndProcVis(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
if (message == WM_LBUTTONDOWN)
vismode ^= 1;
return DefWindowProc(hWnd, message, wParam, lParam);
}
HWND PlatformWindow::SetVisualizer(int x, int y, int w, int h) {
if (double_size()) {
x *= 2;
y *= 2;
w *= 2;
h *= 2;
}
if (vis_hwnd_ == 0) {
vis_hwnd_ = ::CreateWindowEx(0, L"SpotiambVis", NULL, WS_CHILD | WS_VISIBLE,
x, y, w, h, hwnd_, NULL, GetModuleHandle(NULL), NULL);
} else {
SetWindowPos(vis_hwnd_, NULL, x, y, w, h, SWP_NOZORDER| SWP_NOACTIVATE| SWP_NOREPOSITION);
}
return vis_hwnd_;
}
char machine_id[128];
static bool GetMachineId(char buf[128]) {
// Calculate the Windows SID.
wchar_t computer_name[MAX_COMPUTERNAME_LENGTH + 1] = {0};
DWORD size = ARRAYSIZE(computer_name);
buf[0] = 'a';
buf[1] = '-';
buf[2] = 0;
BOOL success = ::GetComputerNameW(computer_name, &size);
if (success) {
char sid_buffer[SECURITY_MAX_SID_SIZE];
SID* sid = reinterpret_cast<SID*>(sid_buffer);
DWORD sid_dword_size = sizeof(sid_buffer), domain_size = 256;
wchar_t domain[256];
SID_NAME_USE sid_name_use;
success = ::LookupAccountNameW(NULL, computer_name, sid, &sid_dword_size, domain, &domain_size, &sid_name_use);
if (success) {
wchar_t* sid_buffer = NULL;
if (::ConvertSidToStringSidW(sid, &sid_buffer)) {
WideCharToMultiByte(CP_UTF8, 0, sid_buffer, -1, buf + 2, 128, NULL, NULL);
LocalFree(sid_buffer);
return true;
}
}
}
return false;
}
char exepath[MAX_PATH];
int APIENTRY WinMain(_In_ HINSTANCE hInstance,
_In_opt_ HINSTANCE hPrevInstance,
_In_ LPSTR lpCmdLine,
_In_ int nCmdShow) {
MSG msg;
hInst = hInstance;
CoInitialize(NULL);
GetMachineId(machine_id);
GetModuleFileNameA(NULL, exepath, MAX_PATH);
int l = strlen(exepath);
while (l > 0 && exepath[l-1] != '\\') l--;
exepath[l] = 0;
MyRegisterClass(hInstance);
PrefInit();
InitSpotamp(__argc, __argv);
// Required for always-on-top to load
if (g_main_window) g_main_window->AlwaysOnTopChanged();
// Main message loop:
while (GetMessage(&msg, NULL, 0, 0)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
for(PlatformWindow *w = g_platform_windows; w; w = w->next())
w->Destroy();
VisPlugin_Stop();
return (int) msg.wParam;
}
int main() {
WinMain(GetModuleHandle(NULL), NULL, NULL, 0);
}
static ZipFile *current_skin_zip;
static std::string current_skin_basedir;
class SimpleFileIO : public FileIO {
public:
SimpleFileIO(const char *filename);
virtual ~SimpleFileIO();
virtual size_t Read(int64 read_offs, void *buf, size_t buf_size);
private:
FILE *f_;
};
SimpleFileIO::SimpleFileIO(const char *filename) {
f_ = fopen(filename, "rb");
}
SimpleFileIO::~SimpleFileIO() {
if (f_) fclose(f_);
}
size_t SimpleFileIO::Read(int64 read_offs, void *buf, size_t buf_size) {
if (!f_) return 0;
fseek(f_, (long)read_offs, SEEK_SET);
return fread(buf, 1, buf_size, f_);
}
// Creates a 32-bit DIB from the specified WIC bitmap.
HBITMAP CreateHBITMAP(IWICBitmapSource * ipBitmap) {
// initialize return value
HBITMAP hbmp = NULL;
// get image attributes and check for valid image
UINT width = 0;
UINT height = 0;
if (FAILED(ipBitmap->GetSize(&width, &height)) || width == 0 || height == 0)
goto Return;
// prepare structure giving bitmap information (negative height indicates a top-down DIB)
BITMAPINFO bminfo;
ZeroMemory(&bminfo, sizeof(bminfo));
bminfo.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
bminfo.bmiHeader.biWidth = width;
bminfo.bmiHeader.biHeight = -((LONG) height);
bminfo.bmiHeader.biPlanes = 1;
bminfo.bmiHeader.biBitCount = 32;
bminfo.bmiHeader.biCompression = BI_RGB;
// create a DIB section that can hold the image
void * pvImageBits = NULL;
HDC hdcScreen = GetDC(NULL);
hbmp = CreateDIBSection(hdcScreen, &bminfo, DIB_RGB_COLORS, &pvImageBits, NULL, 0);
ReleaseDC(NULL, hdcScreen);
if (hbmp == NULL)
goto Return;
// extract the image into the HBITMAP
const UINT cbStride = width * 4;
const UINT cbImage = cbStride * height;
if (FAILED(ipBitmap->CopyPixels(NULL, cbStride, cbImage, static_cast<BYTE *>(pvImageBits)))) {
DeleteObject(hbmp);
hbmp = NULL;
}
Return:
return hbmp;
}
enum BitmapFormat {
kFormatBmp,
kFormatJpeg,
kFormatPng
};
// Loads a PNG image from the specified stream (using Windows Imaging Component).
HBITMAP LoadBitmapFromStream(IStream *ipImageStream, BitmapFormat format) {
// initialize return value
IWICBitmapSource * ipBitmap = NULL;
HBITMAP hBitmap = NULL;
// load WIC's PNG decoder
IWICBitmapDecoder * ipDecoder = NULL;
if (FAILED(CoCreateInstance((format == kFormatBmp) ? CLSID_WICBmpDecoder :
(format == kFormatPng) ? CLSID_WICPngDecoder :
CLSID_WICJpegDecoder, NULL, CLSCTX_INPROC_SERVER, __uuidof(ipDecoder), reinterpret_cast<void**>(&ipDecoder))))
goto Return;
// load the PNG
if (FAILED(ipDecoder->Initialize(ipImageStream, WICDecodeMetadataCacheOnLoad)))
goto ReleaseDecoder;
// check for the presence of the first frame in the bitmap
UINT nFrameCount = 0;
if (FAILED(ipDecoder->GetFrameCount(&nFrameCount)) || nFrameCount != 1)
goto ReleaseDecoder;
// load the first frame (i.e., the image)
IWICBitmapFrameDecode * ipFrame = NULL;
if (FAILED(ipDecoder->GetFrame(0, &ipFrame)))
goto ReleaseDecoder;
// convert the image to 32bpp BGRA format with pre-multiplied alpha
// (it may not be stored in that format natively in the PNG resource,
// but we need this format to create the DIB to use on-screen)
WICConvertBitmapSource(GUID_WICPixelFormat32bppPBGRA, ipFrame, &ipBitmap);
if (ipBitmap != NULL) {
hBitmap = CreateHBITMAP(ipBitmap);
ipBitmap->Release();
}
ipFrame->Release();
ReleaseDecoder:
ipDecoder->Release();
Return:
return hBitmap;
}
bool PlatformLoadString(const char *name, std::string *result) {
// First try and load from zip
if (current_skin_zip && ZipFileReader::ReadFileToString(current_skin_zip, name, result))
return true;
// Load file from resource
return false;
}
void PlatformSetSkin(const char *filename) {
if (current_skin_zip) {
ZipFileReader::Free(current_skin_zip);
current_skin_zip = NULL;
}
current_skin_basedir.clear();
DWORD attr = GetFileAttributesA(filename);
if (attr == INVALID_FILE_ATTRIBUTES)
return;
if (attr & FILE_ATTRIBUTE_DIRECTORY) {
current_skin_basedir = filename;
current_skin_basedir += '\\';
} else {
FileIO *file_io = new SimpleFileIO(filename);
current_skin_zip = ZipFileReader::Open(file_io, true);
}
}
void PlatformDeleteBitmap(Bitmap *bitmap) {
DeleteObject((HBITMAP)bitmap);
}
Size PlatformGetBitmapSize(Bitmap *bitmap) {
BITMAP bmp;
Size rv = {0,0};
if (GetObject((HBITMAP)bitmap, sizeof(BITMAP), &bmp)) {
rv.w = bmp.bmWidth;
rv.h = bmp.bmHeight;
}
return rv;
}
Bitmap *PlatformLoadBitmapFromBuf(const void *data, size_t data_size) {
BitmapFormat format = ((unsigned char*)data)[0] == 'B' ? kFormatBmp :
((unsigned char*)data)[0] == 0x89 ? kFormatPng :
kFormatJpeg;
IStream *stream = SHCreateMemStream((BYTE*)data, data_size);
if (!stream) return NULL;
Bitmap *bmp = (Bitmap*)LoadBitmapFromStream(stream, format);
stream->Release();
return bmp;
}
bool PlatformLoadBitmap(Bitmap **bitmap, const char *name) {
if (*bitmap) {
DeleteObject((HBITMAP)*bitmap);
*bitmap = NULL;
}
// First try and load from zip
std::string zipdata;
if (current_skin_zip && ZipFileReader::ReadFileToString(current_skin_zip, name, &zipdata)) {
*bitmap = PlatformLoadBitmapFromBuf(zipdata.data(), zipdata.size());
if (*bitmap)
return true;
}
// Then from disk
if (current_skin_basedir.size())
*bitmap = (Bitmap*)LoadImageA(NULL, (current_skin_basedir + name).c_str(), IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
if (!*bitmap) {
// Last from resource
*bitmap = (Bitmap*)LoadBitmapA(hInst, name);
}
return *bitmap != NULL;
}
char *PlatformReadClipboard() {
static char *data;
if (data) { free(data); data = NULL; }
if (OpenClipboard(NULL)) {
HANDLE hClipboardData = GetClipboardData(CF_TEXT);
char *pchData = (char*)GlobalLock(hClipboardData);
data = strdup(pchData);
GlobalUnlock(hClipboardData);
CloseClipboard();
}
return data;
}
static std::wstring DecodeUtf8(const char *text) {
wchar_t buf[1024];
std::wstring result;
if (MultiByteToWideChar(CP_UTF8, 0, text, -1, buf, ARRAYSIZE(buf)) == 0) buf[0] = 0;
return buf;
}
bool PlatformWriteClipboard(const char *text) {
std::wstring data = DecodeUtf8(text);
bool ok = false;
if (OpenClipboard(NULL)) {
HGLOBAL hglb;
hglb = GlobalAlloc(GMEM_SHARE|GMEM_MOVEABLE, (data.size() + 1) * sizeof(wchar_t));
LPWSTR lptstr = (LPWSTR)GlobalLock(hglb);
memcpy(lptstr, data.c_str(), (data.size() + 1) * sizeof(wchar_t));
GlobalUnlock(hglb);
EmptyClipboard();
ok = SetClipboardData(CF_UNICODETEXT, hglb) != 0;
CloseClipboard();
}
return ok;
}
// This is required for files built with MinGW to link
extern "C" uint64 mips_umoddi3(unsigned a, unsigned b, unsigned c, unsigned d) {
uint64 x = ((uint64)b << 32) | a;
uint64 y = ((uint64)d << 32) | c;
return x % y;
}
extern "C" uint64 mips_udivdi3(unsigned a, unsigned b, unsigned c, unsigned d) {
uint64 x = ((uint64)b << 32) | a;
uint64 y = ((uint64)d << 32) | c;
return x / y;
}
void DoAutoUpdateStuff(PlatformWindow *w) {
HWND hWnd = w->handle();
if (!g_auto_update_available) return;
g_auto_update_available = false;
if (g_auto_update_msg.size() && g_auto_update_url.size()) {
const char *caption = g_auto_update_caption.size() ? g_auto_update_caption.c_str() : "Spotiamb";
if ((g_auto_update_flags & 1) == 0) {
if (MessageBoxA(hWnd, g_auto_update_msg.c_str(), caption, MB_ICONINFORMATION | MB_YESNO) == IDYES) {
if (memcmp(g_auto_update_url.c_str(), "http://", 7) == 0)
ShellExecuteA(NULL, "open", g_auto_update_url.c_str(), NULL, NULL, SW_SHOWNORMAL);
}
} else if (g_auto_update_flags & 2) {
MessageBoxA(hWnd, g_auto_update_msg.c_str(), caption, MB_ICONSTOP);
}
}
if (g_auto_update_flags & 4)
ExitProcess(0);
}
char *for_each_line(char **ptr) {
char *s = *ptr;
if (s == NULL) return NULL;
char *x = strchr(s, '\n');
if (x) {
x[x > s && x[-1] == '\r' ? -1 : 0] = '\0';
*ptr = x + 1;
} else {
*ptr = NULL;
}
return s;
}
static void ProcessUpdateMessage(char auto_update_message[8192]) {
char *lines = auto_update_message;
while (char *s = for_each_line(&lines)) {
if (memcmp(s, "URL:", 4) == 0) {
g_auto_update_url = s + 4;
} else if (memcmp(s, "M:", 2) == 0) {
g_auto_update_msg.append(s + 2);
g_auto_update_msg.append("\r\n");
} else if (memcmp(s, "T:", 2) == 0) {
g_auto_update_caption = s + 2;
} else if (memcmp(s, "F:", 2) == 0) {
g_auto_update_flags = strtoul(s + 2, NULL, 0);
}
}
g_auto_update_available = true;
}
static DWORD WINAPI UpdateCheckerThread(PVOID arg) {
char auto_update_message[8192];
char query[512];
OSVERSIONINFOEXA ver = {0};
ver.dwOSVersionInfoSize = sizeof(ver);
GetVersionExA((OSVERSIONINFOA*)&ver);
const char *version = TspGetVersionString();
sprintf(query, "http://spotiamb.com/upd.php?v=%s&m=%s&w=%d.%d.%d.%d", version, machine_id, ver.dwMajorVersion, ver.dwMinorVersion, ver.dwBuildNumber, ver.wServicePackMajor);
HINTERNET hINet = InternetOpenA("Spotiamb/" VERSION_STR, INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);
if (hINet) {
HINTERNET hFile = InternetOpenUrlA(hINet, query, NULL, 0, INTERNET_FLAG_RELOAD|INTERNET_FLAG_NO_UI, 0);
if (hFile) {
DWORD statusCode = 0;
DWORD length;
length = sizeof(statusCode);
HttpQueryInfoA(hFile, HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER, &statusCode, &length, NULL);
if (statusCode == 200) {
DWORD dwRead = 0;
if (InternetReadFile(hFile, auto_update_message, sizeof(auto_update_message) - 1, &dwRead)) {
auto_update_message[dwRead] = 0;
ProcessUpdateMessage(auto_update_message);
}
}
InternetCloseHandle(hFile);
}
InternetCloseHandle(hINet);
}
return 0;
}
void CheckUpdate() {
DWORD thread_id;
CloseHandle(CreateThread(NULL, 0, &UpdateCheckerThread, NULL, 0, &thread_id));
}
void OpenUrl(const char *url) {
ShellExecuteA(NULL, NULL, url, NULL, NULL, NULL);
}
FileEnumerator::FileEnumerator(const char *directory) {
h_ = FindFirstFileA((std::string(directory) + "\\*.*").c_str(), &wfd_);
first_ = true;
}
FileEnumerator::~FileEnumerator() {
if (h_ != INVALID_HANDLE_VALUE)
FindClose(h_);
}
bool FileEnumerator::Next() {
bool b;
do {
if (first_) {
first_ = false;
b = (h_ != INVALID_HANDLE_VALUE);
} else {
b = FindNextFileA(h_, &wfd_) != FALSE;
}
} while (b && wfd_.cFileName[0] == '.');
return b;
}
MenuBuilder::MenuBuilder() {
pos_ = 0;
curr_ = CreatePopupMenu();
}
MenuBuilder::~MenuBuilder() {
for(int i = 0; i < pos_; i++)
DestroyMenu(stack_[i]);
DestroyMenu(curr_);
}
void MenuBuilder::BeginSubMenu() {
int j = pos_++;
if (j < ARRAYSIZE(stack_)) {
stack_[j] = curr_;
curr_ = CreatePopupMenu();
}
}