void SetVolumeControlIcons(HWND hwnd, HICON hiconPlay, HICON hiconMute)
{
VolumeControlData *control = GetVolumeControlData(hwnd);
if(!control)
CrashError(TEXT("GetVolumeControlValue called on a control that's not a volume control"));
control->hiconPlay = hiconPlay;
control->hiconMute = hiconMute;
control->bDrawIcon = (control->cy == 32) && control->hiconPlay;
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
}
float SetVolumeControlValue(HWND hwnd, float fVal)
{
VolumeControlData *control = GetVolumeControlData(hwnd);
if(!control)
CrashError(TEXT("SetVolumeControlValue called on a control that's not a volume control"));
float lastVal = control->curVolume;
control->curVolume = fVal;
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
return lastVal;
}
float ToggleVolumeControlMute(HWND hwnd)
{
VolumeControlData *control = GetVolumeControlData(hwnd);
if(!control)
CrashError(TEXT("ToggleVolumeControlMute called on a control that's not a volume control"));
if(control->curVolume < VOLN_MUTELEVEL)
{
if(control->lastUnmutedVol < VOLN_MUTELEVEL)
control->lastUnmutedVol = 1.0f;
control->curVolume = control->lastUnmutedVol;
}
else
{
control->lastUnmutedVol = control->curVolume;
control->curVolume = 0.0f;
}
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
return control->curVolume;
}
LRESULT CALLBACK VolumeControlProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
VolumeControlData *control;
switch(message)
{
case WM_NCCREATE:
{
CREATESTRUCT *pCreateData = (CREATESTRUCT*)lParam;
control = (VolumeControlData*)malloc(sizeof(VolumeControlData));
zero(control, sizeof(VolumeControlData));
SetWindowLongPtr(hwnd, 0, (LONG_PTR)control);
control->curVolume = 1.0f;
control->bDisabled = ((pCreateData->style & WS_DISABLED) != 0);
control->cx = pCreateData->cx;
control->cy = pCreateData->cy;
return TRUE;
}
case WM_DESTROY:
{
control = GetVolumeControlData(hwnd);
if(control)
free(control);
break;
}
case WM_PAINT:
{
control = GetVolumeControlData(hwnd);
PAINTSTRUCT ps;
HDC hDC = BeginPaint(hwnd, &ps);
control->DrawVolumeControl(hDC);
EndPaint(hwnd, &ps);
break;
}
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
{
control = GetVolumeControlData(hwnd);
short x = short(LOWORD(lParam));
short y = short(HIWORD(lParam));
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
if(message == WM_LBUTTONDOWN && !control->bDisabled)
{
if(control->cy == 32 && x >= (control->cx-32))
{
if(control->curVolume < VOLN_MUTELEVEL)
{
if(control->lastUnmutedVol < VOLN_MUTELEVEL)
control->lastUnmutedVol = 1.0f;
control->curVolume = control->lastUnmutedVol;
}
else
{
control->lastUnmutedVol = control->curVolume;
control->curVolume = 0.0f;
}
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_FINALVALUE), (LPARAM)hwnd);
}
else
{
SetCapture(hwnd);
control->bHasCapture = true;
if(control->curVolume > VOLN_MUTELEVEL)
control->lastUnmutedVol = control->curVolume;
int cxAdjust = control->cx;
if(control->bDrawIcon) cxAdjust -= 32;
control->curVolume = float(x) / cxAdjust;
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_ADJUSTING), (LPARAM)hwnd);
}
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
}
else if(control->bHasCapture)
{
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_FINALVALUE), (LPARAM)hwnd);
ReleaseCapture();
control->bHasCapture = false;
}
break;
}
case WM_MOUSEMOVE:
{
control = GetVolumeControlData(hwnd);
if(control->bHasCapture)
{
int cxAdjust = control->cx;
if(control->bDrawIcon) cxAdjust -= 32;
control->curVolume = float(short(LOWORD(lParam))) / cxAdjust;
if(control->curVolume < 0.0f)
control->curVolume = 0.0f;
else if(control->curVolume > 1.0f)
control->curVolume = 1.0f;
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_ADJUSTING), (LPARAM)hwnd);
}
break;
}
case WM_ENABLE:
{
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
control = GetVolumeControlData(hwnd);
if(control->bDisabled == !wParam)
break;
control->bDisabled = !control->bDisabled;
if(control->bDisabled)
{
if(control->curVolume > VOLN_MUTELEVEL)
{
control->lastUnmutedVol = control->curVolume;
control->curVolume = 0.0f;
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_ADJUSTING), (LPARAM)hwnd);
}
}
else
{
if(control->curVolume < VOLN_MUTELEVEL)
{
control->curVolume = control->lastUnmutedVol;
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_ADJUSTING), (LPARAM)hwnd);
}
}
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
break;
}
case WM_SIZE:
{
control = GetVolumeControlData(hwnd);
control->cx = LOWORD(lParam);
control->cy = HIWORD(lParam);
control->bDrawIcon = (control->cy == 32) && control->hiconPlay;
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
break;
}
case WM_COMMAND:
{
switch(HIWORD(wParam))
{
/*
Handle API Volume Adjustments
Updates control values and sends message to obsproc to update
application volume.
*/
case VOLN_FINALVALUE:
case VOLN_ADJUSTING:
{
float val = *(float*)lParam;
SetVolumeControlValue(hwnd, val);
/* free volume value on heap */
free((void*) lParam);
/* send message to obsproc to update volumes */
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, HIWORD(wParam)), (LPARAM)hwnd);
break;
}
case VOLN_TOGGLEMUTE:
{
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
ToggleVolumeControlMute(GetDlgItem(hwndMain, id));
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_FINALVALUE), (LPARAM)hwnd);
}
}
}
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}
LRESULT CALLBACK VolumeControlProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
VolumeControlData *control;
switch(message)
{
case WM_NCCREATE:
{
CREATESTRUCT *pCreateData = (CREATESTRUCT*)lParam;
control = (VolumeControlData*)malloc(sizeof(VolumeControlData));
zero(control, sizeof(VolumeControlData));
SetWindowLongPtr(hwnd, 0, (LONG_PTR)control);
control->curVolume = 1.0f;
control->bDisabled = ((pCreateData->style & WS_DISABLED) != 0);
control->cx = pCreateData->cx;
control->cy = pCreateData->cy;
return TRUE;
}
case WM_DESTROY:
{
control = GetVolumeControlData(hwnd);
if(control)
free(control);
break;
}
case WM_PAINT:
{
control = GetVolumeControlData(hwnd);
PAINTSTRUCT ps;
HDC hDC = BeginPaint(hwnd, &ps);
control->DrawVolumeControl(hDC);
EndPaint(hwnd, &ps);
break;
}
case WM_LBUTTONDOWN:
case WM_LBUTTONUP:
{
control = GetVolumeControlData(hwnd);
short x = short(LOWORD(lParam));
short y = short(HIWORD(lParam));
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
if(message == WM_LBUTTONDOWN && !control->bDisabled)
{
if(control->cy == 32 && x >= (control->cx-32))
{
if(control->curVolume < 0.05f)
{
if(control->lastUnmutedVol < 0.05f)
control->lastUnmutedVol = 1.0f;
control->curVolume = control->lastUnmutedVol;
}
else
{
control->lastUnmutedVol = control->curVolume;
control->curVolume = 0.0f;
}
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_FINALVALUE), (LPARAM)hwnd);
}
else
{
SetCapture(hwnd);
control->bHasCapture = true;
if(control->curVolume > 0.05f)
control->lastUnmutedVol = control->curVolume;
int cxAdjust = control->cx;
if(control->bDrawIcon) cxAdjust -= 32;
control->curVolume = float(x) / cxAdjust;
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_ADJUSTING), (LPARAM)hwnd);
}
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
}
else if(control->bHasCapture)
{
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_FINALVALUE), (LPARAM)hwnd);
ReleaseCapture();
control->bHasCapture = false;
}
break;
}
case WM_MOUSEMOVE:
{
control = GetVolumeControlData(hwnd);
if(control->bHasCapture)
{
int cxAdjust = control->cx;
if(control->bDrawIcon) cxAdjust -= 32;
control->curVolume = float(short(LOWORD(lParam))) / cxAdjust;
if(control->curVolume < 0.0f)
control->curVolume = 0.0f;
else if(control->curVolume > 1.0f)
control->curVolume = 1.0f;
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_ADJUSTING), (LPARAM)hwnd);
}
break;
}
case WM_ENABLE:
{
UINT id = (UINT)GetWindowLongPtr(hwnd, GWLP_ID);
control = GetVolumeControlData(hwnd);
if(control->bDisabled == !wParam)
break;
control->bDisabled = !control->bDisabled;
if(control->bDisabled)
{
if(control->curVolume > 0.05f)
{
control->lastUnmutedVol = control->curVolume;
control->curVolume = 0.0f;
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_ADJUSTING), (LPARAM)hwnd);
}
}
else
{
if(control->curVolume < 0.05f)
{
control->curVolume = control->lastUnmutedVol;
SendMessage(GetParent(hwnd), WM_COMMAND, MAKEWPARAM(id, VOLN_ADJUSTING), (LPARAM)hwnd);
}
}
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
break;
}
case WM_SIZE:
{
control = GetVolumeControlData(hwnd);
control->cx = LOWORD(lParam);
control->cy = HIWORD(lParam);
control->bDrawIcon = (control->cy == 32) && control->hiconPlay;
HDC hDC = GetDC(hwnd);
control->DrawVolumeControl(hDC);
ReleaseDC(hwnd, hDC);
break;
}
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}