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//===============================================================
// vsliderc.cxx - SliderCmd - Windows
//
// Copyright (C) 1995,1996, 1997, 1998 Bruce E. Wampler
//
// This file is part of the V C++ GUI Framework, and is covered
// under the terms of the GNU Library General Public License,
// Version 2. This library has NO WARRANTY. See the source file
// vapp.cxx for more complete information about license terms.
//===============================================================
#include <v/vwin32.h> // for Win 32 stuff
#include <v/vsliderc.h> // our definitions
#include <v/vcmdprnt.h> // a command parent
#include <v/vapp.h>
//=================>>> vSliderCmd::vSliderCmd <<<=======================
vSliderCmd::vSliderCmd(vCmdParent* dp, CommandObject* dc) :
vCmd(dp, dc)
{
initialize(); // and initialize
}
//=======================>>> vSliderCmd::~vSliderCmd <<<=======================
vSliderCmd::~vSliderCmd()
{
SysDebug(Constructor,"vSliderCmd::~vSliderCmd() Destructor\n")
}
//=====================>>> vSliderCmd::initialize <<<=======================
void vSliderCmd::initialize()
{
SysDebug(Constructor,"vSliderCmd::vSliderCmd() constructor\n")
long style;
if (_parentWin->_dialogType != aCmdBar)
style = WS_TABSTOP | WS_GROUP; // default for a button
else
style = WS_GROUP;
CopyToLocal(); // Make local copies of CmdObject
if (!(dlgCmd->attrs & CA_Hidden)) // Check for Hidden
style |= WS_VISIBLE;
// Set the size of the slider
int SliderHeight = (dlgCmd->attrs & CA_Large) ? 170 : 110;
if (dlgCmd->attrs & CA_Small)
SliderHeight = 60;
if (dlgCmd->size > 0 && dlgCmd->size < 2048)
SliderHeight = dlgCmd->size;
if (dlgCmd->attrs & CA_Vertical)
{
style |= SBS_VERT;
_w = 12; // set my width
_h = SliderHeight; // default height
}
else
{
style |= SBS_HORZ;
_w = SliderHeight; // set my width
_h = 14; // default height
}
int* minMax = (int *)_itemList; // giving range?
_minVal = 0; _maxVal = 100; // default min/max
if (minMax != 0) // They gave a range list
{
_minVal = minMax[0];
_maxVal = minMax[1];
}
if (_minVal > _maxVal)
{
SysDebug2(BadVals,"vSliderCmd:vSliderCmd - bad range %d to %d\n",_minVal,_maxVal)
_minVal = 0; _maxVal = 100; // make some sense!
}
if (_retVal < _minVal) // set a legal value for the top
_curVal = _minVal;
else if (_retVal > _maxVal)
_curVal = _maxVal;
else
_curVal = _retVal;
_parentWin->SetPosition(_x, _y, _w, _h, dlgCmd->cFrame, dlgCmd->cRightOf,
dlgCmd->cBelow);
_CtrlOffset = _parentWin->AddDlgControl(_x, _y, _w, _h, _cmdId,
style, "SCROLLBAR", _title, sizeof(vSliderCmd*), (LPBYTE)this);
}
//==================>>> vSliderCmd::GetCmdValue <<<=========================
int vSliderCmd::GetCmdValue(ItemVal id) VCONST
{
if (id != _cmdId)
return -1;
return _curVal;
}
//=====================>>> vSliderCmd::SetCmdVal <<<=========================
void vSliderCmd::SetCmdVal(ItemVal val, ItemSetType st)
{
SysDebug2(Misc,"vSliderCmd::SetCmdVal(val:%d, type:%d)\n",val,st)
HWND myHwnd = GetMyHwnd(_cmdId);
if (st == Value)
{
if (val < _minVal || val > _maxVal )
return;
_curVal = val;
// Now set appropriate _curVal, scroll
::SetScrollRange(myHwnd, SB_CTL, _minVal, _maxVal, 0);
::SetScrollPos(myHwnd, SB_CTL, _curVal, 1);
}
else if (st == Sensitive)
{
_Sensitive = val; // set
::EnableWindow(myHwnd, val);
}
else if (st == Hidden) // hide or unhide
{
if (val)
{
::ShowWindow(myHwnd,SW_HIDE);
}
else
{
::ShowWindow(myHwnd,SW_SHOW);
}
}
}
//===================>>> vSliderCmd::vCmdCallback <<<=======================
void vSliderCmd::CmdCallback(int id, WORD codeNotify)
{
// id is the SB_ code, and codeNotify is the position
short newVal = _curVal;
switch (id)
{
case SB_BOTTOM: // Scroll to bottom
newVal = _maxVal;
break;
case SB_LINEDOWN: // Down one line
if (newVal < _maxVal)
++newVal;
break;
case SB_LINEUP: // Up one line
if (newVal > _minVal)
--newVal;
break;
case SB_PAGEDOWN: // Page Down - use 10
if (newVal + 10 < _maxVal)
newVal += 10;
else
newVal = _maxVal;
break;
case SB_PAGEUP: // Page Up - use -10
if (newVal - 10 > _minVal)
newVal -= 10;
else
newVal = _minVal;
break;
case SB_THUMBPOSITION: // move to position given
case SB_THUMBTRACK:
newVal = (short) codeNotify;
break;
case SB_TOP: // top of scroll
newVal = _minVal;
break;
}
if (newVal != _curVal) // only notify if changed
{
_curVal = newVal;
HWND myHwnd = GetMyHwnd(_cmdId); // get my HWND
::SetScrollPos(myHwnd, SB_CTL, _curVal, 1); // update control
_parentWin->ProcessCmd(_cmdId, _curVal, dlgCmd->cmdType);
}
}
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