static void uiFormMinimumSize(uiWindowsControl *c, int *width, int *height)
{
uiForm *f = uiForm(c);
int xpadding, ypadding;
int nStretchy;
// these two contain the largest minimum width and height of all stretchy controls in the form
// all stretchy controls will use this value to determine the final minimum size
int maxLabelWidth, maxControlWidth;
int maxStretchyHeight;
int labelwid;
int i;
int minimumWidth, minimumHeight;
int nVisible;
uiWindowsSizing sizing;
*width = 0;
*height = 0;
if (f->controls->size() == 0)
return;
// 0) get this Form's padding
formPadding(f, &xpadding, &ypadding);
// 1) determine the longest width of all controls and labels; add in the height of non-stretchy controls and get (but not add in) the largest heights of stretchy controls
// we still add in like direction of stretchy controls
nStretchy = 0;
maxLabelWidth = 0;
maxControlWidth = 0;
maxStretchyHeight = 0;
nVisible = 0;
for (const struct formChild &fc : *(f->controls)) {
if (!uiControlVisible(fc.c))
continue;
nVisible++;
labelwid = uiWindowsWindowTextWidth(fc.label);
if (maxLabelWidth < labelwid)
maxLabelWidth = labelwid;
uiWindowsControlMinimumSize(uiWindowsControl(fc.c), &minimumWidth, &minimumHeight);
if (fc.stretchy) {
nStretchy++;
if (maxStretchyHeight < minimumHeight)
maxStretchyHeight = minimumHeight;
}
if (maxControlWidth < minimumWidth)
maxControlWidth = minimumWidth;
if (!fc.stretchy)
*height += minimumHeight;
}
if (nVisible == 0) // nothing to show; return 0x0
return;
*width += maxLabelWidth + maxControlWidth;
// 2) outset the desired rect with the needed padding
*width += xpadding;
*height += (nVisible - 1) * ypadding;
// 3) and now we can add in stretchy controls
*height += nStretchy * maxStretchyHeight;
}
static void showHide(uiButton *b, void *data)
{
uiControl *c = uiControl(data);
if (uiControlVisible(c))
uiControlHide(c);
else
uiControlShow(c);
}
static Janet janet_ui_visible(int32_t argc, Janet *argv) {
janet_fixarity(argc, 1);
uiControl *c = janet_getcontrol(argv, 0);
return janet_wrap_boolean(uiControlVisible(c));
}
static void formRelayout(uiForm *f)
{
RECT r;
int x, y, width, height;
int xpadding, ypadding;
int nStretchy;
int labelwid, stretchyht;
int thiswid;
int i;
int minimumWidth, minimumHeight;
uiWindowsSizing sizing;
int labelht, labelyoff;
int nVisible;
if (f->controls->size() == 0)
return;
uiWindowsEnsureGetClientRect(f->hwnd, &r);
x = r.left;
y = r.top;
width = r.right - r.left;
height = r.bottom - r.top;
// 0) get this Form's padding
formPadding(f, &xpadding, &ypadding);
// 1) get width of labels and height of non-stretchy controls
// this will tell us how much space will be left for controls
labelwid = 0;
stretchyht = height;
nStretchy = 0;
nVisible = 0;
for (struct formChild &fc : *(f->controls)) {
if (!uiControlVisible(fc.c)) {
ShowWindow(fc.label, SW_HIDE);
continue;
}
ShowWindow(fc.label, SW_SHOW);
nVisible++;
thiswid = uiWindowsWindowTextWidth(fc.label);
if (labelwid < thiswid)
labelwid = thiswid;
if (fc.stretchy) {
nStretchy++;
continue;
}
uiWindowsControlMinimumSize(uiWindowsControl(fc.c), &minimumWidth, &minimumHeight);
fc.height = minimumHeight;
stretchyht -= minimumHeight;
}
if (nVisible == 0) // nothing to do
return;
// 2) inset the available rect by the needed padding
width -= xpadding;
height -= (nVisible - 1) * ypadding;
stretchyht -= (nVisible - 1) * ypadding;
// 3) now get the width of controls and the height of stretchy controls
width -= labelwid;
if (nStretchy != 0) {
stretchyht /= nStretchy;
for (struct formChild &fc : *(f->controls)) {
if (!uiControlVisible(fc.c))
continue;
if (fc.stretchy)
fc.height = stretchyht;
}
}
// 4) get the y offset
labelyoff = labelYOffset;
uiWindowsGetSizing(f->hwnd, &sizing);
uiWindowsSizingDlgUnitsToPixels(&sizing, NULL, &labelyoff);
// 5) now we can position controls
// first, make relative to the top-left corner of the container
// also prefer left alignment on Windows
x = labelwid + xpadding;
y = 0;
for (const struct formChild &fc : *(f->controls)) {
if (!uiControlVisible(fc.c))
continue;
labelht = labelHeight;
uiWindowsGetSizing(f->hwnd, &sizing);
uiWindowsSizingDlgUnitsToPixels(&sizing, NULL, &labelht);
uiWindowsEnsureMoveWindowDuringResize(fc.label, 0, y + labelyoff - sizing.InternalLeading, labelwid, labelht);
uiWindowsEnsureMoveWindowDuringResize((HWND) uiControlHandle(fc.c), x, y, width, fc.height);
y += fc.height + ypadding;
}
}
