Split table cell metrics into its own file. We still need to actually integrate this with everything.
This commit is contained in:
Pietro Gagliardi
parent
df59eee783
commit
ec07b12295
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@ -0,0 +1,135 @@
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// 14 june 2018
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#include "uipriv_windows.hpp"
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#include "table.hpp"
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struct uiprivTableMetrics {
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uiTable *t;
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uiTableModel *m;
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uiprivTableColumnParams *p;
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int iItem;
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int iSubItem;
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BOOL hasText;
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BOOL hasImage;
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BOOL focused;
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BOOL selected;
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RECT itemBounds;
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RECT itemIcon;
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RECT itemLabel;
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RECT subitemBounds;
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RECT subitemIcon;
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RECT subitemLabel;
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LRESULT bitmapMargin;
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int cxIcon;
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int cyIcon;
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RECT realTextBackground;
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RECT realTextRect;
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};
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static HRESULT itemRect(HRESULT hr, uiTable *t, UINT uMsg, WPARAM wParam, LONG left, LONG top, LRESULT bad, RECT *r)
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{
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if (hr != S_OK)
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return hr;
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ZeroMemory(r, sizeof (RECT));
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r->left = left;
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r->top = top;
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if (SendMessageW(t->hwnd, uMsg, wParam, (LPARAM) r) == bad) {
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logLastError(L"itemRect() message");
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return E_FAIL;
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}
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return S_OK;
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}
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HRESULT uiprivTableGetMetrics(uiTable *t, int iItem, int iSubItem, uiprivTableMetrics **mout)
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{
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uiprivTableMetrics *m;
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LRESULT state;
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HWND header;
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RECT r;
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HRESULT hr;
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if (mout == NULL)
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return E_POINTER;
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m = uiprivNew(uiprivTableMetrics);
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m->t = t;
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m->m = t->model;
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m->p = (*(t->columns))[iSubItem];
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m->iItem = iItem;
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m->iSubItem = iSubItem;
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m->hasText = m->p->textModelColumn != -1;
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m->hasImage = (m->p->imageModelColumn != -1) || (m->p->checkboxModelColumn != -1);
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state = SendMessageW(t->hwnd, LVM_GETITEMSTATE, iItem, LVIS_FOCUSED | LVIS_SELECTED);
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m->focused = (state & LVIS_FOCUSED) != 0;
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m->selected = (state & LVIS_SELECTED) != 0;
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// TODO check LRESULT bad parameters here
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hr = itemRect(S_OK, t, LVM_GETITEMRECT, s->iItem,
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LVIR_BOUNDS, 0, FALSE, &(m->itemBounds));
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hr = itemRect(hr, t, LVM_GETITEMRECT, s->iItem,
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LVIR_ICON, 0, FALSE, &(m->itemIcon));
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hr = itemRect(hr, t, LVM_GETITEMRECT, s->iItem,
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LVIR_LABEL, 0, FALSE, &(m->itemLabel));
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hr = itemRect(hr, t, LVM_GETSUBITEMRECT, s->iItem,
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LVIR_BOUNDS, s->iSubItem, 0, &(m->subitemBounds));
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hr = itemRect(hr, t, LVM_GETSUBITEMRECT, s->iItem,
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LVIR_ICON, s->iSubItem, 0, &(m->subitemIcon));
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if (hr != S_OK)
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goto fail;
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// LVM_GETSUBITEMRECT treats LVIR_LABEL as the same as
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// LVIR_BOUNDS, so we can't use that directly. Instead, let's
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// assume the text is immediately after the icon. The correct
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// rect will be determined by
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// computeOtherRectsAndDrawBackgrounds() above.
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m->subitemLabel = m->subitemBounds;
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m->subitemLabel.left = m->subitemIcon.right;
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// And on iSubItem == 0, LVIF_GETSUBITEMRECT still includes
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// all the subitems, which we don't want.
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if (iSubItem == 0) {
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m->subitemBounds.right = m->itemLabel.right;
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m->subitemLabel.right = m->itemLabel.right;
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}
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header = (HWND) SendMessageW(t->hwnd, LVM_GETHEADER, 0, 0);
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m->bitmapMargin = SendMessageW(header, HDM_GETBITMAPMARGIN, 0, 0);
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if (ImageList_GetIconSize(t->imagelist, &(m->cxIcon), &(m->cyIcon)) == 0) {
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logLastError(L"ImageList_GetIconSize()");
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hr = E_FAIL;
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goto fail;
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}
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r = m->subitemLabel;
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if (!m->hasText && !m->hasImage)
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r = s->subitemBounds;
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else if (!m->hasImage && iSubItem != 0)
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// By default, this will include images; we're not drawing
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// images, so we will manually draw over the image area.
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// There's a second part to this; see below.
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r.left = m->subitemBounds.left;
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m->realTextBackground = r;
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m->realTextRect = r;
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// TODO confirm whether this really happens on column 0 as well
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if (m->hasImage && iSubItem != 0)
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// Normally there's this many hard-coded logical units
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// of blank space, followed by the background, followed
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// by a bitmap margin's worth of space. This looks bad,
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// so we overrule that to start the background immediately
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// and the text after the hard-coded amount.
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m->realTextRect.left += 2;
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else if (iSubItem != 0)
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// In the case of subitem text without an image, we draw
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// text one bitmap margin away from the left edge.
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m->realTextRect.left += m->bitmapMargin;
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*mout = m;
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return S_OK;
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fail:
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uiprivFree(m);
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*mout = NULL;
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return hr;
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}
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