100 lines
3.1 KiB
C++
100 lines
3.1 KiB
C++
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// 13 june 2018
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#include "uipriv_windows.hpp"
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#include "table.hpp"
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// further reading:
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// - https://msdn.microsoft.com/en-us/library/ye4z8x58.aspx
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static HRESULT handleLVIF_TEXT(uiTable *t, NMLVDISPINFOW *nm, uiprivTableColumnParams *p)
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{
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int strcol;
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uiTableValue *value;
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WCHAR *wstr;
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int progress;
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HRESULT hr;
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if ((nm->item.mask & LVIF_TEXT) == 0)
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return S_OK;
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strcol = -1;
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if (p->textModelColumn != -1)
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strcol = p->textModelColumn;
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else if (p->buttonModelColumn != -1)
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strcol = p->buttonModelColumn;
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if (strcol != -1) {
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value = uiprivTableModelCellValue(t->model, nm->item.iItem, strcol);
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wstr = toUTF16(uiTableValueString(value));
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uiFreeTableValue(value);
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// We *could* just make pszText into a freshly allocated
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// conversion and avoid the limitation of cchTextMax.
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// But then, we would have to keep things around for some
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// amount of time (some pages on MSDN say 2 additional
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// LVN_GETDISPINFO messages). And in practice, anything
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// that results in extra LVN_GETDISPINFO messages (such
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// as LVN_GETITEMRECT with LVIR_LABEL) will break this
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// counting.
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// TODO make it so we don't have to make a copy; instead we can convert directly into pszText (this will also avoid the risk of having a dangling surrogate pair at the end)
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wcsncpy(nm->item.pszText, wstr, nm->item.cchTextMax);
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nm->item.pszText[nm->item.cchTextMax - 1] = L'\0';
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uiprivFree(wstr);
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return S_OK;
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}
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if (p->progressBarModelColumn != -1) {
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progress = uiprivTableProgress(t, nm->item.iItem, nm->item.iSubItem, p->progressBarModelColumn, NULL);
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if (progress == -1) {
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// TODO either localize this or replace it with something that's language-neutral
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// TODO ensure null terminator
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wcsncpy(nm->item.pszText, L"Indeterminate", nm->item.cchTextMax);
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return S_OK;
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}
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// TODO ensure null terminator
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_snwprintf(nm->item.pszText, nm->item.cchTextMax, L"%d%%", progress);
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return S_OK;
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}
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return S_OK;
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}
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static HRESULT handleLVIF_IMAGE(uiTable *t, NMLVDISPINFOW *nm, uiprivTableColumnParams *p)
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{
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uiTableValue *value;
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HRESULT hr;
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if (nm->item.iSubItem == 0 && p->imageModelColumn == -1 && p->checkboxModelColumn == -1) {
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// Having an image list always leaves space for an image
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// on the main item :|
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// Other places on the internet imply that you should be
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// able to do this but that it shouldn't work, but it works
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// perfectly (and pixel-perfectly too) for me, so...
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nm->item.mask |= LVIF_INDENT;
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nm->item.iIndent = -1;
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}
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if ((nm->item.mask & LVIF_IMAGE) == 0)
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return S_OK; // nothing to do here
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// TODO see if the -1 part is correct
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// TODO see if we should use state instead of images for checkbox value
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nm->item.iImage = -1;
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if (p->imageModelColumn != -1 || p->checkboxModelColumn != -1)
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nm->item.iImage = 0;
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return S_OK;
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}
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HRESULT uiprivTableHandleLVN_GETDISPINFO(uiTable *t, NMLVDISPINFOW *nm, LRESULT *lResult)
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{
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uiprivTableColumnParams *p;
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HRESULT hr;
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p = (*(t->columns))[nm->item.iSubItem];
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hr = handleLVIF_TEXT(t, nm, p);
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if (hr != S_OK)
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return hr;
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hr = handleLVIF_IMAGE(t, nm, p);
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if (hr != S_OK)
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return hr;
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*lResult = 0;
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return S_OK;
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}
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