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Implemented nearest style matches when changing families. Wow we're actually almost done here!

This commit is contained in:
Pietro Gagliardi 2016-04-17 19:37:03 -04:00
parent 156fae7bbb
commit 39ea7e269f
1 changed files with 33 additions and 5 deletions
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38
windows/fontdialog.cpp
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@ -1,6 +1,9 @@
// 14 april 2016
#include "uipriv_windows.h"
// TODOs
// - the Choose Font sample defaults to Regular/Italic/Bold/Bold Italic in some case (no styles?); do we? find out what the case is
struct fontDialog {
HWND hwnd;
HWND familyCombobox;
@ -21,7 +24,7 @@ struct fontDialog {
LRESULT curStyle;
double curSize;
// these are for comparing the nearest match when changing families so the nearest style to the previous one can be chosen
// these are finding the style that's closest to the previous one (these fields) when changing a font
DWRITE_FONT_WEIGHT weight;
DWRITE_FONT_STYLE style;
DWRITE_FONT_STRETCH stretch;
@ -204,8 +207,12 @@ static void familyChanged(struct fontDialog *f)
LRESULT pos;
BOOL selected;
IDWriteFontFamily *family;
IDWriteFont *font;
IDWriteFont *font, *matchFont;
DWRITE_FONT_WEIGHT weight;
DWRITE_FONT_STYLE style;
DWRITE_FONT_STRETCH stretch;
UINT32 i, n;
UINT32 matching;
WCHAR *label;
HRESULT hr;
@ -216,9 +223,27 @@ static void familyChanged(struct fontDialog *f)
family = (IDWriteFontFamily *) cbGetItemData(f->familyCombobox, (WPARAM) (f->curFamily));
// for the nearest style match
// when we select a new family, we want the nearest style to the previously selected one to be chosen
// this is how the Choose Font sample does it
hr = family->GetFirstMatchingFont(
f->weight,
f->stretch,
f->style,
&matchFont);
if (hr != S_OK)
logHRESULT("error finding first matching font to previous style in font dialog in familyChanged()", hr);
// we can't just compare pointers; a "newly created" object comes out
// the Choose Font sample appears to do this instead
weight = matchFont->GetWeight();
style = matchFont->GetStyle();
stretch = matchFont->GetStretch();
matchFont->Release();
// TODO test mutliple streteches; all the fonts I have have only one stretch value?
wipeStylesBox(f);
n = family->GetFontCount();
matching = 0; // a safe/suitable default just in case
for (i = 0; i < n; i++) {
hr = family->GetFont(i, &font);
if (hr != S_OK)
@ -227,11 +252,14 @@ static void familyChanged(struct fontDialog *f)
pos = cbAddString(f->styleCombobox, label);
uiFree(label);
cbSetItemData(f->styleCombobox, (WPARAM) pos, (LPARAM) font);
if (font->GetWeight() == weight &&
font->GetStyle() == style &&
font->GetStretch() == stretch)
matching = i;
}
// TODO how do we preserve style selection? the real thing seems to have a very elaborate method of doing so
// TODO check error
SendMessageW(f->styleCombobox, CB_SETCURSEL, 0, 0);
// and now, load the match
cbSetCurSel(f->styleCombobox, (WPARAM) matching);
styleChanged(f);
}