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win32: Handle p.min properly in shader dialog. 

Windows trackbars with integral values are annoying.
This commit is contained in:
BearOso 2023-02-14 15:23:29 -06:00
parent 8270c1c658
commit 2914fdf64c
1 changed files with 4 additions and 4 deletions
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8
win32/CShaderParamDlg.cpp
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@ -135,7 +135,7 @@ void CShaderParamDlg::trackbar_changed(HWND trackbar)
auto& p = parameter_widgets[i];
int pos = SendMessage(trackbar, TBM_GETPOS, 0, 0);
float value = parameters[i].step * pos;
float value = parameters[i].step * pos + parameters[i].min;
TCHAR val[256];
_stprintf(val, TEXT("%g"), value);
@ -311,7 +311,7 @@ void CShaderParamDlg::createContent(HWND hDlg)
);
SendMessage(item, TBM_SETRANGEMIN, false, 0);
SendMessage(item, TBM_SETRANGEMAX, false, (int)round((p.max - p.min) / p.step));
SendMessage(item, TBM_SETPOS, true, (int)round(p.val / p.step));
SendMessage(item, TBM_SETPOS, true, (int)round((p.val - p.min) / p.step));
SetWindowLongPtr(item, GWLP_USERDATA, i);
widgets.trackbar = item;
@ -355,9 +355,9 @@ void CShaderParamDlg::handle_up_down(HWND hStatic, int id, int change)
TCHAR val[100];
GetWindowText(hEdit, val, 100);
p.val = _ttof(val);
int step = round(p.val / p.step);
int step = round((p.val - p.min) / p.step);
step += change > 0 ? 1 : -1;
p.val = step * p.step;
p.val = step * p.step + p.min;
if (p.val < p.min)
p.val = p.min;
if (p.val > p.max)