ES-DE/external/rlottie/example/win32Player/rlottiePlayer.cpp

521 lines
16 KiB
C++

// rlottiePlayer.cpp : Defines the entry point for the application.
//
#include "framework.h"
#include "rlottiePlayer.h"
using namespace Gdiplus;
#define MAX_LOADSTRING 100
// Global Variables:
HINSTANCE hInst; // current instance
WCHAR szTitle[MAX_LOADSTRING]; // The title bar text
WCHAR szWindowClass[MAX_LOADSTRING]; // the main window class name
HWND mainWindow; // Main Window Instance
HWND hTextFileToBeOpened; // openDialog file path
HWND hBtnPlay;
HWND hSliderPlay, hSliderCanvasResize;
UINT curFrame = 0;
RlottieBitmap anim; // rendered Animation Bitmap
RECT animRect, backRect;
size_t animWidth, animHeight;
Gdiplus::Color backColor(255, 255, 255, 255);
Gdiplus::Color borderColor(255, 0, 0, 0);
bool isViewChanged = false;
// Forward declarations of functions included in this code module:
ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE, int);
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
INT_PTR CALLBACK About(HWND, UINT, WPARAM, LPARAM);
void openJSONFileDialog(HWND);
void initUIControl(HWND);
void dlgUICommand(HWND, WPARAM);
void resizeCanvas(HWND, int);
void changeBackgroundColor(int r, int g, int b);
// Animation Rendering Functions
void draw(HDC);
Bitmap* CreateBitmap(void* data, unsigned int width, unsigned int height);
void renderAnimation(UINT);
int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
_In_opt_ HINSTANCE hPrevInstance,
_In_ LPWSTR lpCmdLine,
_In_ int nCmdShow)
{
UNREFERENCED_PARAMETER(hPrevInstance);
UNREFERENCED_PARAMETER(lpCmdLine);
// initialize Gdiplus
Gdiplus::GdiplusStartupInput gdiplusStartUpInput;
ULONG_PTR gdiplustoken;
Gdiplus::GdiplusStartup(&gdiplustoken, &gdiplusStartUpInput, nullptr);
// Initialize global strings
LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
LoadStringW(hInstance, IDC_RLOTTIEPLAYER, szWindowClass, MAX_LOADSTRING);
MyRegisterClass(hInstance);
// Perform application initialization:
if (!InitInstance(hInstance, nCmdShow))
{
return FALSE;
}
HACCEL hAccelTable = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDC_RLOTTIEPLAYER));
MSG msg;
// Main message loop:
while (GetMessage(&msg, nullptr, 0, 0))
{
if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
Gdiplus::GdiplusShutdown(gdiplustoken);
return (int)msg.wParam;
}
//
// FUNCTION: MyRegisterClass()
//
// PURPOSE: Registers the window class.
//
ATOM MyRegisterClass(HINSTANCE hInstance)
{
WNDCLASSEXW wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_RLOTTIEPLAYER));
wcex.hCursor = LoadCursor(nullptr, IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.lpszMenuName = MAKEINTRESOURCEW(IDC_RLOTTIEPLAYER);
wcex.lpszClassName = szWindowClass;
wcex.hIconSm = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));
return RegisterClassExW(&wcex);
}
//
// FUNCTION: InitInstance(HINSTANCE, int)
//
// PURPOSE: Saves instance handle and creates main window
//
// COMMENTS:
//
// In this function, we save the instance handle in a global variable and
// create and display the main program window.
//
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
hInst = hInstance; // Store instance handle in our global variable
DWORD dwStyle = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;
mainWindow = CreateWindowEx(0, szWindowClass, szTitle, dwStyle,
CW_USEDEFAULT, CW_USEDEFAULT, WND_WIDTH, WND_HEIGHT, nullptr, nullptr, hInstance, nullptr);
if (!mainWindow)
{
return FALSE;
}
ShowWindow(mainWindow, nCmdShow);
UpdateWindow(mainWindow);
SetMenu(mainWindow, NULL);
return TRUE;
}
//
// FUNCTION: WndProc(HWND, UINT, WPARAM, LPARAM)
//
// PURPOSE: Processes messages for the main window.
//
// WM_COMMAND - process the application menu
// WM_PAINT - Paint the main window
// WM_DESTROY - post a quit message and return
//
//
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static bool isplay = false;
int wmId = LOWORD(wParam);
switch (message)
{
case WM_CREATE:
{
initUIControl(hWnd);
break;
}
case WM_TIMER:
{
switch (wmId)
{
case TIMER_PLAY_ANIM:
{
renderAnimation(curFrame + 1);
SendMessage(hSliderPlay, TBM_SETPOS, TRUE, curFrame);
break;
}
default:
break;
}
break;
}
case WM_COMMAND:
{
// Parse the menu selections:
switch (wmId)
{
case IDM_ABOUT:
DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
break;
case IDM_EXIT:
DestroyWindow(hWnd);
break;
case BTN_BROWSE:
openJSONFileDialog(hWnd);
break;
case BTN_PLAY:
{
LPWSTR textBtnPlay;
USES_CONVERSION;
if (isplay)
{
isplay = false;
textBtnPlay = A2W("Play");
KillTimer(hWnd, TIMER_PLAY_ANIM);
}
else
{
isplay = true;
textBtnPlay = A2W("Pause");
SetTimer(hWnd, TIMER_PLAY_ANIM, 10, NULL);
}
SetWindowText(hBtnPlay, textBtnPlay);
break;
}
case WM_DROPFILES:
break;
case BTN_WHITE:
changeBackgroundColor(1, 1, 1);
break;
case BTN_BLACK:
changeBackgroundColor(0, 0, 0);
break;
case BTN_RED:
changeBackgroundColor(1, 0, 0);
break;
case BTN_GREEN:
changeBackgroundColor(0, 1, 0);
break;
case BTN_BLUE:
changeBackgroundColor(0, 0, 1);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
}
break;
case WM_HSCROLL:
{
if ((lParam != 0) && (reinterpret_cast<HWND>(lParam) == hSliderPlay))
{
UINT frameNum = SendDlgItemMessage(hWnd, SLIDER_PLAY, TBM_GETPOS, 0, 0);
renderAnimation(frameNum);
}
else if ((lParam != 0) && (reinterpret_cast<HWND>(lParam) == hSliderCanvasResize))
{
static int curSize = anim.width / RESIZE_LENGTH;
int newSize = SendDlgItemMessage(hWnd, SLIDER_CANVAS_RESIZE, TBM_GETPOS, 0, 0);
resizeCanvas(hWnd, (curSize - newSize) * RESIZE_LENGTH);
curSize = newSize;
}
break;
}
case WM_PAINT:
{
PAINTSTRUCT ps;
HDC hdc = BeginPaint(hWnd, &ps);
draw(hdc);
EndPaint(hWnd, &ps);
}
break;
case WM_CTLCOLORSTATIC:
{
static HBRUSH hBrushEdit = CreateSolidBrush(RGB(255, 255, 255));
return (LRESULT)hBrushEdit;
}
case WM_DESTROY:
freeAnimation();
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
// Message handler for about box.
INT_PTR CALLBACK About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
{
UNREFERENCED_PARAMETER(lParam);
switch (message)
{
case WM_INITDIALOG:
return (INT_PTR)TRUE;
case WM_COMMAND:
if (LOWORD(wParam) == IDOK || LOWORD(wParam) == IDCANCEL)
{
EndDialog(hDlg, LOWORD(wParam));
return (INT_PTR)TRUE;
}
break;
}
return (INT_PTR)FALSE;
}
void openJSONFileDialog(HWND hDlg)
{
OPENFILENAME ofn; // common dialog box structure
TCHAR szFile[260] = { 0 }; // if using TCHAR macros
// Initialize OPENFILENAME
ZeroMemory(&ofn, sizeof(ofn));
ofn.lStructSize = sizeof(ofn);
ofn.hwndOwner = hDlg;
ofn.lpstrFile = szFile;
ofn.nMaxFile = sizeof(szFile);
ofn.lpstrFilter = _T("JSON\0*.json\0");
ofn.nFilterIndex = 1;
ofn.lpstrFileTitle = NULL;
ofn.nMaxFileTitle = 0;
ofn.lpstrInitialDir = NULL;
ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
isViewChanged = true;
if (GetOpenFileName(&ofn))
{
isViewChanged = true;
SetWindowText(hTextFileToBeOpened, ofn.lpstrFile);
// LPWSTR(w_char*) -> LPSTR(char*)
USES_CONVERSION;
LPSTR path = W2A(ofn.lpstrFile);
setAnimation(path, &animWidth, &animHeight);
// init play slider
SendMessage(hSliderPlay, TBM_SETRANGE, FALSE, MAKELPARAM(0, getTotalFrame()));
SendMessage(hSliderPlay, TBM_SETPOS, TRUE, 0);
renderAnimation(0);
}
}
void draw(HDC hdc)
{
Graphics gf(hdc);
int half_interval = UI_INTERVAL / 2;
// background
SolidBrush brush(backColor);
int back_y = half_interval + BTN_HEIGHT;
int back_height = back_y + BMP_MAX_LEN + UI_INTERVAL;
if (isViewChanged)
{
isViewChanged = false;
gf.FillRectangle(&brush, 0, back_y, WND_WIDTH, back_height);
}
// image borderline
Pen pen(borderColor);
gf.DrawRectangle(&pen, anim.x - half_interval, anim.y - half_interval, anim.width + half_interval * 2, anim.height + half_interval * 2);
// image
if (anim.image != NULL)
{
gf.DrawImage(anim.image, anim.x, anim.y, anim.width, anim.height);
}
}
Bitmap* CreateBitmap(void* data, unsigned int width, unsigned int height)
{
BITMAPINFO Info;
memset(&Info, 0, sizeof(Info));
Info.bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
Info.bmiHeader.biWidth = width;
Info.bmiHeader.biHeight = height;
Info.bmiHeader.biPlanes = 1;
Info.bmiHeader.biBitCount = 32;
Info.bmiHeader.biCompression = BI_RGB;
Info.bmiHeader.biSizeImage = 0; //(((32 * width + 31) & ~31) / 8) * height;
return new Gdiplus::Bitmap(&Info, data);
}
void renderAnimation(UINT frameNum)
{
if (isAnimNULL()) return;
if (anim.image != NULL) delete anim.image;
curFrame = frameNum % getTotalFrame();
// render
UINT* resRender = renderRLottieAnimation(curFrame);
anim.image = CreateBitmap(resRender, animWidth, animHeight);
anim.image->RotateFlip(RotateNoneFlipY);
// call WM_PAINT message
InvalidateRect(mainWindow, &animRect, FALSE);
}
void initUIControl(HWND hWnd)
{
int half_ui_interval = UI_INTERVAL / 2;
// button browse
int browse_x = UI_INTERVAL;
int browse_y = half_ui_interval;
CreateWindow(L"button", L"Browse", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
browse_x, browse_y, BTN_WIDTH, BTN_HEIGHT, hWnd, (HMENU)BTN_BROWSE, hInst, NULL);
// textbox FilePath
int textFile_x = browse_x + BTN_WIDTH + UI_INTERVAL;
int textFile_y = browse_y;
hTextFileToBeOpened = CreateWindowEx(0, L"static", L"No file selected.", WS_CHILD | WS_VISIBLE | ES_LEFT,
textFile_x, textFile_y, WND_WIDTH * 0.6, TEXT_HEIGHT, hWnd, (HMENU)TEXT_FILENAME, hInst, 0);
// image
anim.x = WND_WIDTH / 4;
anim.y = browse_y + BTN_HEIGHT + UI_INTERVAL * 2;
anim.width = BMP_MAX_LEN;
anim.height = anim.width;
// animating range
SetRect(&animRect,
anim.x - UI_INTERVAL,
anim.y - UI_INTERVAL,
anim.x + anim.width + UI_INTERVAL * 2,
anim.y + anim.height + UI_INTERVAL * 2
);
// background range
SetRect(&backRect,
0,
anim.y - UI_INTERVAL,
WND_WIDTH,
anim.y + anim.height + UI_INTERVAL * 2
);
// text Background Color
int textBC_x = WND_WIDTH / 20;
int textBC_y = anim.y + anim.height + UI_INTERVAL * 2;
CreateWindowEx(0, L"static", L"Background Color", WS_CHILD | WS_VISIBLE | ES_LEFT,
textBC_x, textBC_y, 120, TEXT_HEIGHT, hWnd, (HMENU)TEXT_FILENAME, hInst, 0);
// radio button
// white
int white_x = WND_WIDTH / 20;
int white_y = textBC_y + TEXT_HEIGHT + half_ui_interval;
CreateWindowEx(0, L"button", L"White", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
white_x, white_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_WHITE, hInst, NULL);
// black
int black_x = white_x + RDOBTN_WIDTH + half_ui_interval;
int black_y = white_y;
CreateWindowEx(0, L"button", L"Black", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
black_x, black_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_BLACK, hInst, NULL);
// red
int red_x = black_x + RDOBTN_WIDTH + half_ui_interval;
int red_y = white_y;
CreateWindowEx(0, L"button", L"Red", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
red_x, red_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_RED, hInst, NULL);
// green
int green_x = red_x + RDOBTN_WIDTH + half_ui_interval;
int green_y = white_y;
CreateWindowEx(0, L"button", L"Green", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
green_x, green_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_GREEN, hInst, NULL);
// blue
int blue_x = green_x + RDOBTN_WIDTH + half_ui_interval;
int blue_y = white_y;
CreateWindowEx(0, L"button", L"Blue", WS_VISIBLE | WS_CHILD | BS_AUTORADIOBUTTON,
blue_x, blue_y, RDOBTN_WIDTH, RDOBTN_HEIGHT, hWnd, (HMENU)BTN_BLUE, hInst, NULL);
CheckRadioButton(hWnd, BTN_WHITE, BTN_BLUE, BTN_WHITE);
// text Canvas Resize
int textCR_x = WND_WIDTH / 2;
int textCR_y = textBC_y;
CreateWindowEx(0, L"static", L"Canvas Resize", WS_CHILD | WS_VISIBLE | ES_LEFT,
textCR_x, textCR_y, 120, TEXT_HEIGHT, hWnd, (HMENU)TEXT_FILENAME, hInst, 0);
// slider Canvas Resize
int sliderCR_x = textCR_x;
int sliderCR_y = textCR_y + TEXT_HEIGHT + half_ui_interval;
hSliderCanvasResize = CreateWindowExW(0, TRACKBAR_CLASSW, NULL, WS_CHILD | WS_VISIBLE | TBS_FIXEDLENGTH | TBS_NOTICKS,
sliderCR_x, sliderCR_y, WND_WIDTH * 0.2, SLIDER_HEIGHT, hWnd, (HMENU)SLIDER_CANVAS_RESIZE, hInst, NULL);
// init resize slider
UINT sizeSlider = anim.width / RESIZE_LENGTH;
SendMessage(hSliderCanvasResize, TBM_SETRANGE, FALSE, MAKELPARAM(0, sizeSlider));
SendMessage(hSliderCanvasResize, TBM_SETPOS, TRUE, sizeSlider);
// button play
int btnPlay_x = WND_WIDTH / 10;
int btnPlay_y = red_y + RDOBTN_HEIGHT + UI_INTERVAL * 2;
hBtnPlay = CreateWindow(L"button", L"Play", WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,
btnPlay_x, btnPlay_y, BTN_WIDTH, BTN_HEIGHT, hWnd, (HMENU)BTN_PLAY, hInst, NULL);
// slider play
int sliderPlay_x = btnPlay_x + BTN_WIDTH + UI_INTERVAL;
int sliderPlay_y = btnPlay_y;
hSliderPlay = CreateWindowExW(0, TRACKBAR_CLASSW, NULL, WS_CHILD | WS_VISIBLE | TBS_FIXEDLENGTH | TBS_NOTICKS,
sliderPlay_x, sliderPlay_y, WND_WIDTH * 0.6, SLIDER_HEIGHT, hWnd, (HMENU)SLIDER_PLAY, hInst, NULL);
}
void resizeCanvas(HWND hWnd, int resizeValue)
{
isViewChanged = true;
anim.x += resizeValue / 2;
anim.y += resizeValue / 2;
anim.width -= resizeValue;
anim.height -= resizeValue;
InvalidateRect(hWnd, &animRect, TRUE);
}
void changeBackgroundColor(int r, int g, int b)
{
isViewChanged = true;
backColor = Gdiplus::Color(r * 255, g * 255, b * 255);
if (r + g + b == 0) borderColor = Gdiplus::Color(255, 255, 255);
else borderColor = Gdiplus::Color(0, 0, 0);
setAnimationColor(r, g, b);
renderAnimation(curFrame);
InvalidateRect(mainWindow, &backRect, FALSE);
}