123 lines
2.9 KiB
C++
123 lines
2.9 KiB
C++
// 14 april 2016
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#include "uipriv_windows.h"
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#define this self // TODO
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struct uiFontButton {
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uiWindowsControl c;
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HWND hwnd;
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struct fontDialogParams params;
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BOOL already;
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};
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static void onDestroy(uiFontButton *);
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uiWindowsDefineControlWithOnDestroy(
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uiFontButton, // type name
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uiFontButtonType, // type function
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onDestroy(this); // on destroy
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)
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static void onDestroy(uiFontButton *b)
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{
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uiWindowsUnregisterWM_COMMANDHandler(b->hwnd);
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destroyFontDialogParams(&(b->params));
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}
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static void updateFontButtonLabel(uiFontButton *b)
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{
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WCHAR *text;
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text = fontDialogParamsToString(&(b->params));
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// TODO error check
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SendMessageW(b->hwnd, WM_SETTEXT, 0, (LPARAM) text);
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uiFree(text);
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// changing the text might necessitate a change in the button's size
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uiWindowsControlQueueRelayout(uiWindowsControl(b));
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}
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static BOOL onWM_COMMAND(uiControl *c, HWND hwnd, WORD code, LRESULT *lResult)
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{
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uiFontButton *b = uiFontButton(c);
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HWND parent;
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if (code != BN_CLICKED)
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return FALSE;
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parent = GetAncestor(b->hwnd, GA_ROOT); // TODO didn't we have a function for this
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if (showFontDialog(parent, &(b->params))) {
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updateFontButtonLabel(b);
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// TODO event
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}
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*lResult = 0;
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return TRUE;
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}
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// from http://msdn.microsoft.com/en-us/library/windows/desktop/dn742486.aspx#sizingandspacing
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#define buttonHeight 14
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static void minimumSize(uiWindowsControl *c, uiWindowsSizing *d, intmax_t *width, intmax_t *height)
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{
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uiFontButton *b = uiFontButton(c);
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SIZE size;
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// try the comctl32 version 6 way
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size.cx = 0; // explicitly ask for ideal size
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size.cy = 0;
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if (SendMessageW(b->hwnd, BCM_GETIDEALSIZE, 0, (LPARAM) (&size)) != FALSE) {
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*width = size.cx;
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*height = size.cy;
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return;
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}
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// that didn't work; fall back to using Microsoft's metrics
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// Microsoft says to use a fixed width for all buttons; this isn't good enough
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// use the text width instead, with some edge padding
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*width = uiWindowsWindowTextWidth(b->hwnd) + (2 * GetSystemMetrics(SM_CXEDGE));
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*height = uiWindowsDlgUnitsToY(buttonHeight, d->BaseY);
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}
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#if 0
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TODO
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static void defaultOnClicked(uiButton *b, void *data)
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{
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// do nothing
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}
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#endif
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// TODO document that GetFont returns a NEW instance each time
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// TODO document that the Handle of a Font may not be unique
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#if 0
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TODO
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void uiButtonOnClicked(uiButton *b, void (*f)(uiButton *, void *), void *data)
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{
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b->onClicked = f;
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b->onClickedData = data;
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}
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#endif
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uiFontButton *uiNewFontButton(void)
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{
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uiFontButton *b;
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b = (uiFontButton *) uiNewControl(uiFontButtonType());
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b->hwnd = uiWindowsEnsureCreateControlHWND(0,
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L"button", L"you should not be seeing this",
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BS_PUSHBUTTON | WS_TABSTOP,
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hInstance, NULL,
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TRUE);
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loadInitialFontDialogParams(&(b->params));
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updateFontButtonLabel(b);
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uiWindowsRegisterWM_COMMANDHandler(b->hwnd, onWM_COMMAND, uiControl(b));
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//TODO uiButtonOnClicked(b, defaultOnClicked, NULL);
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uiWindowsFinishNewControl(b, uiFontButton);
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return b;
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}
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