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- // VirtualDub - Video processing and capture application
- // Copyright (C) 1998-2004 Avery Lee
- //
- // This program is free software; you can redistribute it and/or modify
- // it under the terms of the GNU General Public License as published by
- // the Free Software Foundation; either version 2 of the License, or
- // (at your option) any later version.
- //
- // This program is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU General Public License for more details.
- //
- // You should have received a copy of the GNU General Public License
- // along with this program; if not, write to the Free Software
- // Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- #include <stdafx.h>
- #include <windows.h>
- #include <commctrl.h>
- #include <vd2/Dita/w32control.h>
-
- ///////////////////////////////////////////////////////////////////////////
- //
- // VDUITrackbarW32
- //
- ///////////////////////////////////////////////////////////////////////////
-
- class VDUITrackbarW32 : public VDUIControlW32, public IVDUITrackbar {
- public:
- void *AsInterface(uint32 id);
-
- bool Create(IVDUIParameters *);
-
- void PreLayoutBase(const VDUILayoutSpecs& parentConstraints);
-
- void SetRange(sint32 mn, sint32 mx);
-
- int GetValue();
- void SetValue(int value);
-
- void OnScrollCallback(UINT code);
-
- protected:
- sint32 mValue;
- };
-
- extern IVDUIWindow *VDCreateUITrackbar() { return new VDUITrackbarW32; }
-
- void *VDUITrackbarW32::AsInterface(uint32 id) {
- if (id == IVDUITrackbar::kTypeID) return static_cast<IVDUITrackbar *>(this);
-
- return VDUIControlW32::AsInterface(id);
- }
-
- bool VDUITrackbarW32::Create(IVDUIParameters *pParams) {
- mValue = 0;
- return CreateW32(pParams, TRACKBAR_CLASS, TBS_HORZ|TBS_BOTH|TBS_NOTICKS);
- }
-
- void VDUITrackbarW32::PreLayoutBase(const VDUILayoutSpecs& parentConstraints) {
- }
-
- void VDUITrackbarW32::SetRange(sint32 mn, sint32 mx) {
- SendMessage(mhwnd, TBM_SETRANGEMIN, FALSE, mn);
- SendMessage(mhwnd, TBM_SETRANGEMAX, TRUE, mx);
- OnScrollCallback(0); // check for clip
- }
-
- int VDUITrackbarW32::GetValue() {
- return mValue;
- }
-
- void VDUITrackbarW32::SetValue(int value) {
- mValue = value; // prevents recursion
- SendMessage(mhwnd, TBM_SETPOS, TRUE, value);
- }
-
- void VDUITrackbarW32::OnScrollCallback(UINT code) {
- sint32 v = SendMessage(mhwnd, TBM_GETPOS, 0, 0);
-
- if (mValue != v) {
- mValue = v;
- mpBase->ProcessValueChange(this, mID);
- mpBase->DispatchEvent(this, mID, IVDUICallback::kEventSelect, GetValue());
- }
- }
-