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[SNDVOL32] Implement the volume control for the tray window.

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This commit is contained in:
Eric Kohl 2019-02-02 14:43:30 +01:00
parent f5960cea70
commit c73c7cc16e
1 changed files with 186 additions and 1 deletions
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187
base/applications/sndvol32/tray.c
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@ -7,6 +7,22 @@
#include "sndvol32.h"
typedef struct _DIALOG_DATA
{
HMIXER hMixer;
DWORD volumeControlID;
DWORD volumeChannels;
DWORD volumeMinimum;
DWORD volumeMaximum;
DWORD volumeStep;
DWORD maxVolume;
DWORD maxChannel;
PMIXERCONTROLDETAILS_UNSIGNED volumeInitValues;
PMIXERCONTROLDETAILS_UNSIGNED volumeCurrentValues;
} DIALOG_DATA, *PDIALOG_DATA;
static VOID
OnTrayInitDialog(
HWND hwnd,
@ -40,11 +56,147 @@ OnTrayInitDialog(
SetWindowPos(hwnd, HWND_TOPMOST, x, y, 0, 0, SWP_NOSIZE);
/* Disable the controls for now */
EnableWindow(GetDlgItem(hwnd, IDC_LINE_SLIDER_VERT), FALSE);
EnableWindow(GetDlgItem(hwnd, IDC_LINE_SWITCH), FALSE);
}
static
VOID
OnTrayInitMixer(
PDIALOG_DATA pDialogData,
HWND hwndDlg)
{
MIXERLINE mxln;
MIXERCONTROL mxc;
MIXERLINECONTROLS mxlctrl;
MIXERCONTROLDETAILS mxcd;
DWORD i;
/* Open the mixer */
if (mixerOpen(&pDialogData->hMixer, 0, PtrToUlong(hwndDlg), 0, MIXER_OBJECTF_MIXER | CALLBACK_WINDOW) != MMSYSERR_NOERROR)
return;
/* Retrieve the mixer information */
mxln.cbStruct = sizeof(MIXERLINE);
mxln.dwComponentType = MIXERLINE_COMPONENTTYPE_DST_SPEAKERS;
if (mixerGetLineInfo((HMIXEROBJ)pDialogData->hMixer, &mxln, MIXER_OBJECTF_HMIXER | MIXER_GETLINEINFOF_COMPONENTTYPE) != MMSYSERR_NOERROR)
return;
pDialogData->volumeChannels = mxln.cChannels;
/* Retrieve the line information */
mxlctrl.cbStruct = sizeof(MIXERLINECONTROLS);
mxlctrl.dwLineID = mxln.dwLineID;
mxlctrl.dwControlType = MIXERCONTROL_CONTROLTYPE_VOLUME;
mxlctrl.cControls = 1;
mxlctrl.cbmxctrl = sizeof(MIXERCONTROL);
mxlctrl.pamxctrl = &mxc;
if (mixerGetLineControls((HMIXEROBJ)pDialogData->hMixer, &mxlctrl, MIXER_OBJECTF_HMIXER | MIXER_GETLINECONTROLSF_ONEBYTYPE) != MMSYSERR_NOERROR)
return;
pDialogData->volumeControlID = mxc.dwControlID;
pDialogData->volumeMinimum = mxc.Bounds.dwMinimum;
pDialogData->volumeMaximum = mxc.Bounds.dwMaximum;
pDialogData->volumeStep = (pDialogData->volumeMaximum - pDialogData->volumeMinimum) / (VOLUME_MAX - VOLUME_MIN);
/* Allocate a buffer for all channel volume values */
pDialogData->volumeInitValues = HeapAlloc(GetProcessHeap(),
0,
mxln.cChannels * sizeof(MIXERCONTROLDETAILS_UNSIGNED));
if (pDialogData->volumeInitValues == NULL)
return;
pDialogData->volumeCurrentValues = HeapAlloc(GetProcessHeap(),
0,
mxln.cChannels * sizeof(MIXERCONTROLDETAILS_UNSIGNED));
if (pDialogData->volumeCurrentValues == NULL)
return;
/* Retrieve the channel volume values */
mxcd.cbStruct = sizeof(MIXERCONTROLDETAILS);
mxcd.dwControlID = mxc.dwControlID;
mxcd.cChannels = mxln.cChannels;
mxcd.cMultipleItems = 0;
mxcd.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
mxcd.paDetails = pDialogData->volumeInitValues;
if (mixerGetControlDetails((HMIXEROBJ)pDialogData->hMixer, &mxcd, MIXER_OBJECTF_HMIXER | MIXER_GETCONTROLDETAILSF_VALUE) != MMSYSERR_NOERROR)
return;
pDialogData->maxVolume = pDialogData->volumeInitValues[0].dwValue;
pDialogData->maxChannel = 0;
for (i = 1; i < pDialogData->volumeChannels; i++)
{
if (pDialogData->volumeInitValues[i].dwValue > pDialogData->maxVolume)
{
pDialogData->maxVolume = pDialogData->volumeInitValues[i].dwValue;
pDialogData->maxChannel = i;
}
}
/* Initialize the volume trackbar */
SendDlgItemMessage(hwndDlg, IDC_LINE_SLIDER_VERT, TBM_SETRANGE, TRUE, MAKELONG(VOLUME_MIN, VOLUME_MAX));
SendDlgItemMessage(hwndDlg, IDC_LINE_SLIDER_VERT, TBM_SETPAGESIZE, 0, VOLUME_PAGE_SIZE);
SendDlgItemMessage(hwndDlg, IDC_LINE_SLIDER_VERT, TBM_SETPOS, TRUE, VOLUME_MAX -(pDialogData->maxVolume - pDialogData->volumeMinimum) / pDialogData->volumeStep);
}
static
VOID
OnVScroll(
PDIALOG_DATA pDialogData,
HWND hwndDlg,
WPARAM wParam,
LPARAM lParam)
{
MIXERCONTROLDETAILS mxcd;
DWORD dwPos, dwVolume, i;
switch (LOWORD(wParam))
{
case TB_THUMBTRACK:
dwPos = VOLUME_MAX - (DWORD)SendDlgItemMessage(hwndDlg, IDC_LINE_SLIDER_VERT, TBM_GETPOS, 0, 0);
dwVolume = (dwPos * pDialogData->volumeStep) + pDialogData->volumeMinimum;
for (i = 0; i < pDialogData->volumeChannels; i++)
{
if (i == pDialogData->maxChannel)
{
pDialogData->volumeCurrentValues[i].dwValue = dwVolume;
}
else
{
pDialogData->volumeCurrentValues[i].dwValue =
pDialogData->volumeInitValues[i].dwValue * dwVolume / pDialogData-> maxVolume;
}
}
mxcd.cbStruct = sizeof(MIXERCONTROLDETAILS);
mxcd.dwControlID = pDialogData->volumeControlID;
mxcd.cChannels = pDialogData->volumeChannels;
mxcd.cMultipleItems = 0;
mxcd.cbDetails = sizeof(MIXERCONTROLDETAILS_UNSIGNED);
mxcd.paDetails = pDialogData->volumeCurrentValues;
mixerSetControlDetails((HMIXEROBJ)pDialogData->hMixer,
&mxcd,
MIXER_OBJECTF_HMIXER | MIXER_SETCONTROLDETAILSF_VALUE);
break;
case TB_ENDTRACK:
PlaySound((LPCTSTR)SND_ALIAS_SYSTEMDEFAULT, NULL, SND_ASYNC | SND_ALIAS_ID);
break;
default:
break;
}
}
INT_PTR
CALLBACK
TrayDlgProc(
@ -53,10 +205,43 @@ TrayDlgProc(
WPARAM wParam,
LPARAM lParam)
{
PDIALOG_DATA pDialogData;
pDialogData = (PDIALOG_DATA)GetWindowLongPtr(hwndDlg, DWLP_USER);
switch (uMsg)
{
case WM_INITDIALOG:
OnTrayInitDialog(hwndDlg, wParam, lParam);
pDialogData = (PDIALOG_DATA)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(DIALOG_DATA));
SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)pDialogData);
if (pDialogData)
OnTrayInitMixer(pDialogData, hwndDlg);
break;
case WM_VSCROLL:
if (pDialogData)
OnVScroll(pDialogData, hwndDlg, wParam, lParam);
break;
case WM_DESTROY:
if (pDialogData)
{
if (pDialogData->volumeInitValues)
HeapFree(GetProcessHeap(), 0, pDialogData->volumeInitValues);
if (pDialogData->volumeCurrentValues)
HeapFree(GetProcessHeap(), 0, pDialogData->volumeCurrentValues);
if (pDialogData->hMixer)
mixerClose(pDialogData->hMixer);
HeapFree(GetProcessHeap(), 0, pDialogData);
pDialogData = NULL;
SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)NULL);
}
break;
case WM_ACTIVATE: