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implement cursor change for win32

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This commit is contained in:
Eduardo Bart
2012-01-20 00:48:38 -02:00
parent bd63bde722
commit f21927e8d9
10 changed files with 97 additions and 20 deletions
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89
src/framework/platform/win32window.cpp
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@@ -33,6 +33,7 @@ WIN32Window::WIN32Window()
m_instance = 0;
m_deviceContext = 0;
m_glContext = 0;
m_cursor = 0;
m_maximized = false;
m_minimumSize = Size(16,16);
m_size = m_minimumSize;
@@ -226,6 +227,11 @@ void WIN32Window::terminate()
m_deviceContext = NULL;
}
if(m_cursor) {
DestroyCursor(m_cursor);
m_cursor = NULL;
}
if(m_window) {
if(!DestroyWindow(m_window))
logError("ERROR: Destroy window failed.");
@@ -248,6 +254,7 @@ struct WindowProcProxy {
void WIN32Window::internalRegisterWindowClass()
{
m_defaultCursor = LoadCursor(NULL, IDC_ARROW);
WNDCLASSA wc;
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC)WindowProcProxy::call;
@@ -255,7 +262,7 @@ void WIN32Window::internalRegisterWindowClass()
wc.cbWndExtra = 0;
wc.hInstance = m_instance;
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hCursor = m_defaultCursor;
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = g_app->getAppName().c_str();
@@ -352,12 +359,16 @@ void *WIN32Window::getExtensionProcAddress(const char *ext)
void WIN32Window::move(const Point& pos)
{
MoveWindow(m_window, pos.x, pos.y, m_size.width(), m_size.height(), TRUE);
RECT windowRect = {pos.x, pos.y, m_pos.x + m_size.width(), m_pos.y + m_size.height()};
AdjustWindowRectEx(&windowRect, WS_OVERLAPPEDWINDOW, FALSE, WS_EX_APPWINDOW | WS_EX_WINDOWEDGE);
MoveWindow(m_window, windowRect.left, windowRect.top, windowRect.right - windowRect.left, windowRect.bottom - windowRect.top, TRUE);
}
void WIN32Window::resize(const Size& size)
{
MoveWindow(m_window, m_pos.x, m_pos.y, size.width(), size.height(), TRUE);
RECT windowRect = {m_pos.x, m_pos.y, m_pos.x + size.width(), m_pos.y + size.height()};
AdjustWindowRectEx(&windowRect, WS_OVERLAPPEDWINDOW, FALSE, WS_EX_APPWINDOW | WS_EX_WINDOWEDGE);
MoveWindow(m_window, windowRect.left, windowRect.top, windowRect.right - windowRect.left, windowRect.bottom - windowRect.top, TRUE);
}
void WIN32Window::show()
@@ -399,6 +410,13 @@ LRESULT WIN32Window::windowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPar
{
switch(uMsg)
{
case WM_SETCURSOR: {
if(m_cursor)
SetCursor(m_cursor);
else
SetCursor(m_defaultCursor);
break;
}
case WM_ACTIVATE: {
m_focused = !(wParam == WA_INACTIVE);
break;
@@ -518,16 +536,24 @@ void WIN32Window::swapBuffers()
void WIN32Window::restoreMouseCursor()
{
//TODO
logTraceDebug();
if(m_cursor) {
DestroyCursor(m_cursor);
m_cursor = NULL;
SetCursor(m_defaultCursor);
ShowCursor(true);
}
}
void WIN32Window::showMouse()
{
logTraceDebug();
ShowCursor(true);
}
void WIN32Window::hideMouse()
{
logTraceDebug();
ShowCursor(false);
}
@@ -536,9 +562,60 @@ void WIN32Window::displayFatalError(const std::string& message)
MessageBoxA(m_window, message.c_str(), "FATAL ERROR", MB_OK | MB_ICONERROR);
}
void WIN32Window::setMouseCursor(const std::string& file)
{
#define LSB_BIT_SET(p, n) (p[(n)/8] |= (1 <<((n)%8)))
#define HSB_BIT_SET(p, n) (p[(n)/8] |= (128 >>((n)%8)))
void WIN32Window::setMouseCursor(const std::string& file, const Point& hotSpot)
{
logTraceDebug();
std::stringstream fin;
g_resources.loadFile(file, fin);
apng_data apng;
if(load_apng(fin, &apng) != 0) {
logTraceError("unable to load png file ", file);
return;
}
if(apng.bpp != 4) {
logError("the cursor png must have 4 channels");
free_apng(&apng);
return;
}
if(apng.width != 32|| apng.height != 32) {
logError("the cursor png must have 32x32 dimension");
free_apng(&apng);
return;
}
if(m_cursor != NULL)
DestroyCursor(m_cursor);
int width = apng.width;
int height = apng.height;
int numbits = width * height;
int numbytes = (width * height)/8;
std::vector<uchar> andMask(numbytes, 0);
std::vector<uchar> xorMask(numbytes, 0);
for(int i=0;i<numbits;++i) {
uchar r = apng.pdata[i*4+0];
uchar g = apng.pdata[i*4+1];
uchar b = apng.pdata[i*4+2];
uchar a = apng.pdata[i*4+3];
Color color(r,g,b,a);
if(color == Fw::white) { //white
HSB_BIT_SET(xorMask, i);
} else if(color == Fw::alpha) { //alpha
HSB_BIT_SET(andMask, i);
} //otherwise black
}
free_apng(&apng);
m_cursor = CreateCursor(m_instance, hotSpot.x, hotSpot.y, width, height, &andMask[0], &xorMask[0]);
SetCursor(m_cursor);
}
void WIN32Window::setTitle(const std::string& title)