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winctrls.c
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winctrls.c
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// winctrls.c (part of mintty)
// Copyright 2008-11 Andy Koppe
// Adapted from code from PuTTY-0.60 by Simon Tatham and team.
// Licensed under the terms of the GNU General Public License v3 or later.
#include "winctrls.h"
#include "winpriv.h"
#define _RPCNDR_H
#define _WTYPES_H
#define _OLE2_H
#include <commdlg.h>
/*
* winctrls.c: routines to self-manage the controls in a dialog
* box.
*/
/*
* Possible TODO in new cross-platform config box stuff:
*
* - When lining up two controls alongside each other, I wonder if
* we could conveniently arrange to centre them vertically?
* Particularly ugly in the current setup is the `Add new
* forwarded port:' static next to the rather taller `Remove'
* button.
*/
#define GAPBETWEEN 3
#define GAPWITHIN 1
#define GAPXBOX 7
#define GAPYBOX 4
#define DLGWIDTH 168
#define STATICHEIGHT 8
#define TITLEHEIGHT 12
#define CHECKBOXHEIGHT 8
#define RADIOHEIGHT 8
#define EDITHEIGHT 12
#define LISTHEIGHT 11
#define LISTINCREMENT 8
#define COMBOHEIGHT 12
#define PUSHBTNHEIGHT 14
#define PROGBARHEIGHT 14
void
ctrlposinit(ctrlpos * cp, HWND wnd, int leftborder, int rightborder,
int topborder)
{
RECT r, r2;
cp->wnd = wnd;
cp->font = SendMessage(wnd, WM_GETFONT, 0, 0);
cp->ypos = topborder;
GetClientRect(wnd, &r);
r2.left = r2.top = 0;
r2.right = 4;
r2.bottom = 8;
MapDialogRect(wnd, &r2);
cp->dlu4inpix = r2.right;
cp->width = (r.right * 4) / (r2.right) - 2 * GAPBETWEEN;
cp->xoff = leftborder;
cp->width -= leftborder + rightborder;
}
static HWND
doctl(ctrlpos * cp, RECT r, char *wclass, int wstyle, int exstyle,
string wtext, int wid)
{
HWND ctl;
/*
* Note nonstandard use of RECT. This is deliberate: by
* transforming the width and height directly we arrange to
* have all supposedly same-sized controls really same-sized.
*/
r.left += cp->xoff;
MapDialogRect(cp->wnd, &r);
/*
* We can pass in cp->wnd == null, to indicate a dry run
* without creating any actual controls.
*/
if (cp->wnd) {
ctl =
CreateWindowEx(exstyle, wclass, wtext, wstyle, r.left, r.top, r.right,
r.bottom, cp->wnd, (HMENU)(INT_PTR)wid, inst, null);
SendMessage(ctl, WM_SETFONT, cp->font, MAKELPARAM(true, 0));
if (!strcmp(wclass, "LISTBOX")) {
/*
* Bizarre Windows bug: the list box calculates its
* number of lines based on the font it has at creation
* time, but sending it WM_SETFONT doesn't cause it to
* recalculate. So now, _after_ we've sent it
* WM_SETFONT, we explicitly resize it (to the same
* size it was already!) to force it to reconsider.
*/
SetWindowPos(ctl, null, 0, 0, r.right, r.bottom,
SWP_NOACTIVATE | SWP_NOCOPYBITS | SWP_NOMOVE | SWP_NOZORDER);
}
}
else
ctl = null;
return ctl;
}
/*
* Begin a grouping box, with or without a group title.
*/
static void
beginbox(ctrlpos * cp, char *name, int idbox)
{
cp->boxystart = cp->ypos;
if (!name)
cp->boxystart -= STATICHEIGHT / 2;
if (name)
cp->ypos += STATICHEIGHT;
cp->ypos += GAPYBOX;
cp->width -= 2 * GAPXBOX;
cp->xoff += GAPXBOX;
cp->boxid = idbox;
cp->boxtext = name;
}
/*
* End a grouping box.
*/
static void
endbox(ctrlpos * cp)
{
RECT r;
cp->xoff -= GAPXBOX;
cp->width += 2 * GAPXBOX;
cp->ypos += GAPYBOX - GAPBETWEEN;
r.left = GAPBETWEEN;
r.right = cp->width;
r.top = cp->boxystart;
r.bottom = cp->ypos - cp->boxystart;
doctl(cp, r, "BUTTON", BS_GROUPBOX | WS_CHILD | WS_VISIBLE, 0,
cp->boxtext ? cp->boxtext : "", cp->boxid);
cp->ypos += GAPYBOX;
}
/*
* A static line, followed by a full-width edit box.
*/
static void
editboxfw(ctrlpos * cp, int password, char *text, int staticid, int editid)
{
RECT r;
r.left = GAPBETWEEN;
r.right = cp->width;
if (text) {
r.top = cp->ypos;
r.bottom = STATICHEIGHT;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, text, staticid);
cp->ypos += STATICHEIGHT + GAPWITHIN;
}
r.top = cp->ypos;
r.bottom = EDITHEIGHT;
doctl(cp, r, "EDIT",
WS_CHILD | WS_VISIBLE | WS_TABSTOP | ES_AUTOHSCROLL | (password ?
ES_PASSWORD : 0),
WS_EX_CLIENTEDGE, "", editid);
cp->ypos += EDITHEIGHT + GAPBETWEEN;
}
/*
* A static line, followed by a full-width combo box.
*/
static void
combobox(ctrlpos * cp, char *text, int staticid, int listid)
{
RECT r;
r.left = GAPBETWEEN;
r.right = cp->width;
if (text) {
r.top = cp->ypos;
r.bottom = STATICHEIGHT;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, text, staticid);
cp->ypos += STATICHEIGHT + GAPWITHIN;
}
r.top = cp->ypos;
r.bottom = COMBOHEIGHT * 10;
doctl(cp, r, "COMBOBOX",
WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_VSCROLL | CBS_DROPDOWN |
CBS_HASSTRINGS, WS_EX_CLIENTEDGE, "", listid);
cp->ypos += COMBOHEIGHT + GAPBETWEEN;
}
typedef struct {
string label;
int id;
} radio;
static void
radioline_common(ctrlpos * cp, char *text, int id, int nacross,
radio * buttons, int nbuttons)
{
RECT r;
int group;
int i;
int j;
if (text) {
r.left = GAPBETWEEN;
r.top = cp->ypos;
r.right = cp->width;
r.bottom = STATICHEIGHT;
cp->ypos += r.bottom + GAPWITHIN;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, text, id);
}
group = WS_GROUP;
i = 0;
for (j = 0; j < nbuttons; j++) {
if (i == nacross) {
cp->ypos += r.bottom + (nacross > 1 ? GAPBETWEEN : GAPWITHIN);
i = 0;
}
r.left = GAPBETWEEN + i * (cp->width + GAPBETWEEN) / nacross;
if (j < nbuttons - 1)
r.right = (i + 1) * (cp->width + GAPBETWEEN) / nacross - r.left;
else
r.right = cp->width - r.left;
r.top = cp->ypos;
r.bottom = RADIOHEIGHT;
doctl(cp, r, "BUTTON",
BS_NOTIFY | BS_AUTORADIOBUTTON | WS_CHILD | WS_VISIBLE | WS_TABSTOP |
group, 0, buttons[j].label, buttons[j].id);
group = 0;
i++;
}
cp->ypos += r.bottom + GAPBETWEEN;
}
/*
* A single standalone checkbox.
*/
static void
checkbox(ctrlpos * cp, char *text, int id)
{
RECT r;
r.left = GAPBETWEEN;
r.top = cp->ypos;
r.right = cp->width;
r.bottom = CHECKBOXHEIGHT;
cp->ypos += r.bottom + GAPBETWEEN;
doctl(cp, r, "BUTTON",
BS_NOTIFY | BS_AUTOCHECKBOX | WS_CHILD | WS_VISIBLE | WS_TABSTOP, 0,
text, id);
}
/*
* An owner-drawn static text control for a panel title.
*/
static void
paneltitle(ctrlpos * cp, int id)
{
RECT r;
r.left = GAPBETWEEN;
r.top = cp->ypos;
r.right = cp->width;
r.bottom = TITLEHEIGHT;
cp->ypos += r.bottom + GAPBETWEEN;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE | SS_OWNERDRAW, 0, null, id);
}
/*
* A button on the right hand side, with a static to its left.
*/
static void
staticbtn(ctrlpos * cp, char *stext, int sid, char *btext, int bid)
{
const int height =
(PUSHBTNHEIGHT > STATICHEIGHT ? PUSHBTNHEIGHT : STATICHEIGHT);
RECT r;
int lwid, rwid, rpos;
rpos = GAPBETWEEN + 3 * (cp->width + GAPBETWEEN) / 4;
lwid = rpos - 2 * GAPBETWEEN;
rwid = cp->width + GAPBETWEEN - rpos;
r.left = GAPBETWEEN;
r.top = cp->ypos + (height - STATICHEIGHT) / 2 - 1;
r.right = lwid;
r.bottom = STATICHEIGHT;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, stext, sid);
r.left = rpos;
r.top = cp->ypos + (height - PUSHBTNHEIGHT) / 2 - 1;
r.right = rwid;
r.bottom = PUSHBTNHEIGHT;
doctl(cp, r, "BUTTON",
BS_NOTIFY | WS_CHILD | WS_VISIBLE | WS_TABSTOP | BS_PUSHBUTTON, 0,
btext, bid);
cp->ypos += height + GAPBETWEEN;
}
/*
* A simple push button.
*/
static void
button(ctrlpos * cp, char *btext, int bid, int defbtn)
{
RECT r;
r.left = GAPBETWEEN;
r.top = cp->ypos - 1;
r.right = cp->width;
r.bottom = PUSHBTNHEIGHT;
/* Q67655: the _dialog box_ must know which button is default
* as well as the button itself knowing */
if (defbtn && cp->wnd)
SendMessage(cp->wnd, DM_SETDEFID, bid, 0);
doctl(cp, r, "BUTTON",
BS_NOTIFY | WS_CHILD | WS_VISIBLE | WS_TABSTOP |
(defbtn ? BS_DEFPUSHBUTTON : 0) | BS_PUSHBUTTON, 0, btext, bid);
cp->ypos += PUSHBTNHEIGHT + GAPBETWEEN;
}
/*
* An edit control on the right hand side, with a static to its left.
*/
static void
staticedit_internal(ctrlpos * cp, char *stext, int sid, int eid,
int percentedit, int style)
{
const int height = (EDITHEIGHT > STATICHEIGHT ? EDITHEIGHT : STATICHEIGHT);
RECT r;
int lwid, rwid, rpos;
rpos = GAPBETWEEN + (100 - percentedit) * (cp->width + GAPBETWEEN) / 100;
lwid = rpos - 2 * GAPBETWEEN;
rwid = cp->width + GAPBETWEEN - rpos;
r.left = GAPBETWEEN;
r.top = cp->ypos + (height - STATICHEIGHT) / 2;
r.right = lwid;
r.bottom = STATICHEIGHT;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, stext, sid);
r.left = rpos;
r.top = cp->ypos + (height - EDITHEIGHT) / 2;
r.right = rwid;
r.bottom = EDITHEIGHT;
doctl(cp, r, "EDIT",
WS_CHILD | WS_VISIBLE | WS_TABSTOP | ES_AUTOHSCROLL | style,
WS_EX_CLIENTEDGE, "", eid);
cp->ypos += height + GAPBETWEEN;
}
static void
staticedit(ctrlpos * cp, char *stext, int sid, int eid, int percentedit)
{
staticedit_internal(cp, stext, sid, eid, percentedit, 0);
}
static void
staticpassedit(ctrlpos * cp, char *stext, int sid, int eid, int percentedit)
{
staticedit_internal(cp, stext, sid, eid, percentedit, ES_PASSWORD);
}
/*
* A drop-down list box on the right hand side, with a static to
* its left.
*/
static void
staticddl(ctrlpos * cp, char *stext, int sid, int lid, int percentlist)
{
const int height = (COMBOHEIGHT > STATICHEIGHT ? COMBOHEIGHT : STATICHEIGHT);
RECT r;
int lwid, rwid, rpos;
rpos = GAPBETWEEN + (100 - percentlist) * (cp->width + GAPBETWEEN) / 100;
lwid = rpos - 2 * GAPBETWEEN;
rwid = cp->width + GAPBETWEEN - rpos;
r.left = GAPBETWEEN;
r.top = cp->ypos + (height - STATICHEIGHT) / 2;
r.right = lwid;
r.bottom = STATICHEIGHT;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, stext, sid);
r.left = rpos;
r.top = cp->ypos + (height - EDITHEIGHT) / 2;
r.right = rwid;
r.bottom = COMBOHEIGHT * 4;
doctl(cp, r, "COMBOBOX",
WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_VSCROLL | CBS_DROPDOWNLIST |
CBS_HASSTRINGS, WS_EX_CLIENTEDGE, "", lid);
cp->ypos += height + GAPBETWEEN;
}
/*
* A combo box on the right hand side, with a static to its left.
*/
static void
staticcombo(ctrlpos * cp, char *stext, int sid, int lid, int percentlist)
{
const int height = (COMBOHEIGHT > STATICHEIGHT ? COMBOHEIGHT : STATICHEIGHT);
RECT r;
int lwid, rwid, rpos;
rpos = GAPBETWEEN + (100 - percentlist) * (cp->width + GAPBETWEEN) / 100;
lwid = rpos - 2 * GAPBETWEEN;
rwid = cp->width + GAPBETWEEN - rpos;
r.left = GAPBETWEEN;
r.top = cp->ypos + (height - STATICHEIGHT) / 2;
r.right = lwid;
r.bottom = STATICHEIGHT;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, stext, sid);
r.left = rpos;
r.top = cp->ypos + (height - EDITHEIGHT) / 2;
r.right = rwid;
r.bottom = COMBOHEIGHT * 10;
doctl(cp, r, "COMBOBOX",
WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_VSCROLL | CBS_DROPDOWN |
CBS_HASSTRINGS, WS_EX_CLIENTEDGE, "", lid);
cp->ypos += height + GAPBETWEEN;
}
/*
* A static, with a full-width drop-down list box below it.
*/
static void
staticddlbig(ctrlpos * cp, char *stext, int sid, int lid)
{
RECT r;
if (stext) {
r.left = GAPBETWEEN;
r.top = cp->ypos;
r.right = cp->width;
r.bottom = STATICHEIGHT;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, stext, sid);
cp->ypos += STATICHEIGHT;
}
r.left = GAPBETWEEN;
r.top = cp->ypos;
r.right = cp->width;
r.bottom = COMBOHEIGHT * 4;
doctl(cp, r, "COMBOBOX",
WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_VSCROLL | CBS_DROPDOWNLIST |
CBS_HASSTRINGS, WS_EX_CLIENTEDGE, "", lid);
cp->ypos += COMBOHEIGHT + GAPBETWEEN;
}
/*
* A list box with a static labelling it.
*/
static void
listbox(ctrlpos * cp, char *stext, int sid, int lid, int lines)
{
RECT r;
if (stext != null) {
r.left = GAPBETWEEN;
r.top = cp->ypos;
r.right = cp->width;
r.bottom = STATICHEIGHT;
cp->ypos += r.bottom + GAPWITHIN;
doctl(cp, r, "STATIC", WS_CHILD | WS_VISIBLE, 0, stext, sid);
}
r.left = GAPBETWEEN;
r.top = cp->ypos;
r.right = cp->width;
r.bottom = LISTHEIGHT + (lines - 1) * LISTINCREMENT;
cp->ypos += r.bottom + GAPBETWEEN;
doctl(cp, r, "LISTBOX",
WS_CHILD | WS_VISIBLE | WS_TABSTOP | WS_VSCROLL | LBS_NOTIFY |
LBS_HASSTRINGS | LBS_USETABSTOPS, WS_EX_CLIENTEDGE, "", lid);
}
/* ----------------------------------------------------------------------
* Platform-specific side of portable dialog-box mechanism.
*/
void
winctrl_init(winctrls *wc)
{
wc->first = wc->last = null;
}
void
winctrl_cleanup(winctrls *wc)
{
winctrl *c = wc->first;
while (c) {
winctrl *next = c->next;
if (c->ctrl)
c->ctrl->plat_ctrl = null;
free(c->data);
free(c);
c = next;
}
wc->first = wc->last = null;
}
static void
winctrl_add(winctrls *wc, winctrl *c)
{
if (wc->last)
wc->last->next = c;
else
wc->first = c;
wc->last = c;
if (c->ctrl)
c->ctrl->plat_ctrl = c;
}
static winctrl *
winctrl_findbyid(winctrls *wc, int id)
{
for (winctrl *c = wc->first; c; c = c->next) {
if (id >= c->base_id && id < c->base_id + c->num_ids)
return c;
}
return 0;
}
static winctrl *
new_winctrl(int base_id, void *data)
{
winctrl *c = new(winctrl);
c->next = null;
c->ctrl = null;
c->base_id = base_id;
c->num_ids = 1;
c->data = data;
return c;
}
void
winctrl_layout(winctrls *wc, ctrlpos *cp, controlset *s, int *id)
{
ctrlpos columns[16];
int ncols, colstart, colspan;
ctrlpos pos;
int actual_base_id, base_id, num_ids;
void *data;
base_id = *id;
if (!s->ncolumns) {
/* Draw a title. */
winctrl *c = new_winctrl(base_id, strdup(s->boxtitle));
winctrl_add(wc, c);
paneltitle(cp, base_id);
base_id++;
}
else if (*s->pathname) {
/* Start a containing box. */
winctrl *c = new_winctrl(base_id, null);
winctrl_add(wc, c);
beginbox(cp, s->boxtitle, base_id);
base_id++;
}
/* Initially we have just one column. */
ncols = 1;
columns[0] = *cp; /* structure copy */
/* Loop over each control in the controlset. */
for (int i = 0; i < s->ncontrols; i++) {
control *ctrl = s->ctrls[i];
/*
* Generic processing that pertains to all control types.
* At the end of this if statement, we'll have produced
* `ctrl' (a pointer to the control we have to create, or
* think about creating, in this iteration of the loop),
* `pos' (a suitable ctrlpos with which to position it), and
* `c' (a winctrl structure to receive details of the
* dialog IDs). Or we'll have done a `continue', if it was
* CTRL_COLUMNS and doesn't require any control creation at
* all.
*/
if (ctrl->type == CTRL_COLUMNS) {
assert((ctrl->columns.ncols == 1) ^ (ncols == 1));
if (ncols == 1) {
/*
* We're splitting into multiple columns.
*/
int lpercent, rpercent, lx, rx, i;
ncols = ctrl->columns.ncols;
assert(ncols <= (int) lengthof(columns));
for (i = 1; i < ncols; i++)
columns[i] = columns[0]; /* structure copy */
lpercent = 0;
for (i = 0; i < ncols; i++) {
rpercent = lpercent + ctrl->columns.percentages[i];
lx =
columns[i].xoff + lpercent * (columns[i].width + GAPBETWEEN) / 100;
rx =
columns[i].xoff + rpercent * (columns[i].width + GAPBETWEEN) / 100;
columns[i].xoff = lx;
columns[i].width = rx - lx - GAPBETWEEN;
lpercent = rpercent;
}
}
else {
/*
* We're recombining the various columns into one.
*/
int maxy = columns[0].ypos;
int i;
for (i = 1; i < ncols; i++)
if (maxy < columns[i].ypos)
maxy = columns[i].ypos;
ncols = 1;
columns[0] = *cp; /* structure copy */
columns[0].ypos = maxy;
}
continue;
}
else {
/*
* If it wasn't one of those, it's a genuine control;
* so we'll have to compute a position for it now, by
* checking its column span.
*/
int col;
colstart = COLUMN_START(ctrl->column);
colspan = COLUMN_SPAN(ctrl->column);
pos = columns[colstart]; /* structure copy */
pos.width =
columns[colstart + colspan - 1].width +
(columns[colstart + colspan - 1].xoff - columns[colstart].xoff);
for (col = colstart; col < colstart + colspan; col++)
if (pos.ypos < columns[col].ypos)
pos.ypos = columns[col].ypos;
}
/* Most controls don't need anything in c->data. */
data = null;
/* Almost all controls start at base_id. */
actual_base_id = base_id;
/*
* Now we're ready to actually create the control, by
* switching on its type.
*/
switch (ctrl->type) {
when CTRL_EDITBOX: {
num_ids = 2; /* static, edit */
if (ctrl->editbox.percentwidth == 100) {
if (ctrl->editbox.has_list)
combobox(&pos, ctrl->label, base_id, base_id + 1);
else
editboxfw(&pos, ctrl->editbox.password, ctrl->label, base_id,
base_id + 1);
}
else {
if (ctrl->editbox.has_list) {
staticcombo(&pos, ctrl->label, base_id, base_id + 1,
ctrl->editbox.percentwidth);
}
else {
(ctrl->editbox.password ? staticpassedit : staticedit)
(&pos, ctrl->label, base_id, base_id + 1, ctrl->editbox.percentwidth);
}
}
}
when CTRL_RADIO: {
num_ids = ctrl->radio.nbuttons + 1; /* label as well */
radio buttons[ctrl->radio.nbuttons];
for (int i = 0; i < ctrl->radio.nbuttons; i++) {
buttons[i].label = ctrl->radio.labels[i];
buttons[i].id = base_id + 1 + i;
}
radioline_common(&pos, ctrl->label, base_id, ctrl->radio.ncolumns,
buttons, ctrl->radio.nbuttons);
}
when CTRL_CHECKBOX: {
num_ids = 1;
checkbox(&pos, ctrl->label, base_id);
}
when CTRL_BUTTON: {
if (ctrl->button.iscancel)
actual_base_id = IDCANCEL;
num_ids = 1;
button(&pos, ctrl->label, actual_base_id, ctrl->button.isdefault);
}
when CTRL_LISTBOX: {
num_ids = 2;
if (ctrl->listbox.height == 0) {
/* Drop-down list. */
if (ctrl->listbox.percentwidth == 100)
staticddlbig(&pos, ctrl->label, base_id, base_id + 1);
else
staticddl(&pos, ctrl->label, base_id, base_id + 1,
ctrl->listbox.percentwidth);
}
else {
/* Ordinary list. */
listbox(&pos, ctrl->label, base_id, base_id + 1, ctrl->listbox.height);
}
if (ctrl->listbox.ncols) {
/*
* This method of getting the box width is a bit of
* a hack; we'd do better to try to retrieve the
* actual width in dialog units from doctl() just
* before MapDialogRect. But that's going to be no
* fun, and this should be good enough accuracy.
*/
int width = cp->width * ctrl->listbox.percentwidth;
int tabarray[ctrl->listbox.ncols - 1];
int percent = 0;
for (int i = 0; i < ctrl->listbox.ncols - 1; i++) {
percent += ctrl->listbox.percentages[i];
tabarray[i] = width * percent / 10000;
}
SendDlgItemMessage(cp->wnd, base_id + 1, LB_SETTABSTOPS,
ctrl->listbox.ncols - 1, (LPARAM) tabarray);
}
}
when CTRL_FONTSELECT: {
num_ids = 3;
staticbtn(&pos, "", base_id + 1, "&Select...", base_id + 2);
data = new(font_spec);
}
otherwise:
assert(!"Can't happen");
num_ids = 0; /* placate gcc */
}
/*
* Create a `winctrl' for this control, and advance
* the dialog ID counter, if it's actually been created
*/
if (pos.wnd) {
winctrl *c = new(winctrl);
c->next = null;
c->ctrl = ctrl;
c->base_id = actual_base_id;
c->num_ids = num_ids;
c->data = data;
winctrl_add(wc, c);
if (actual_base_id == base_id)
base_id += num_ids;
}
if (colstart >= 0) {
/*
* Update the ypos in all columns crossed by this
* control.
*/
int i;
for (i = colstart; i < colstart + colspan; i++)
columns[i].ypos = pos.ypos;
}
}
/*
* We've now finished laying out the controls; so now update
* the ctrlpos and control ID that were passed in, terminate
* any containing box, and return.
*/
for (int i = 0; i < ncols; i++)
if (cp->ypos < columns[i].ypos)
cp->ypos = columns[i].ypos;
*id = base_id;
if (s->ncolumns && *s->pathname)
endbox(cp);
}
static void
winctrl_set_focus(control *ctrl, int has_focus)
{
if (has_focus)
dlg.focused = ctrl;
else if (!has_focus && dlg.focused == ctrl)
dlg.focused = null;
}
static void
select_font(winctrl *c)
{
font_spec fs = *(font_spec *) c->data;
HDC dc = GetDC(0);
LOGFONT lf;
lf.lfHeight = -MulDiv(fs.size, GetDeviceCaps(dc, LOGPIXELSY), 72);
ReleaseDC(0, dc);
lf.lfWidth = lf.lfEscapement = lf.lfOrientation = 0;
lf.lfItalic = lf.lfUnderline = lf.lfStrikeOut = 0;
lf.lfWeight = (fs.isbold ? FW_BOLD : 0);
lf.lfCharSet = DEFAULT_CHARSET;
lf.lfOutPrecision = OUT_DEFAULT_PRECIS;
lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
lf.lfQuality = DEFAULT_QUALITY;
lf.lfPitchAndFamily = FIXED_PITCH | FF_DONTCARE;
strlcpy(lf.lfFaceName, fs.name, sizeof lf.lfFaceName);
CHOOSEFONT cf;
cf.lStructSize = sizeof (cf);
cf.hwndOwner = dlg.wnd;
cf.lpLogFont = &lf;
cf.Flags =
CF_FIXEDPITCHONLY | CF_FORCEFONTEXIST | CF_INITTOLOGFONTSTRUCT |
CF_SCREENFONTS | CF_NOSCRIPTSEL;
if (ChooseFont(&cf)) {
strset(&fs.name, lf.lfFaceName);
fs.isbold = (lf.lfWeight == FW_BOLD);
fs.size = cf.iPointSize / 10;
dlg_fontsel_set(c->ctrl, &fs);
c->ctrl->handler(c->ctrl, EVENT_VALCHANGE);
}
}
/*
* The dialog-box procedure calls this function to handle Windows
* messages on a control we manage.
*/
int
winctrl_handle_command(UINT msg, WPARAM wParam, LPARAM lParam)
{
winctrl *c;
control *ctrl;
int i, id, ret;
/*
* Look up the control ID in our data.
*/
c = null;
for (i = 0; i < dlg.nctrltrees; i++) {
c = winctrl_findbyid(dlg.controltrees[i], LOWORD(wParam));
if (c)
break;
}
if (!c)
return 0; /* we have nothing to do */
if (msg == WM_DRAWITEM) {
/*
* Owner-draw request for a panel title.
*/
LPDRAWITEMSTRUCT di = (LPDRAWITEMSTRUCT) lParam;
HDC dc = di->hDC;
RECT r = di->rcItem;
SIZE s;
SetMapMode(dc, MM_TEXT); /* ensure logical units == pixels */
GetTextExtentPoint32(dc, (char *) c->data, strlen((char *) c->data), &s);
DrawEdge(dc, &r, EDGE_ETCHED, BF_ADJUST | BF_RECT);
TextOut(dc, r.left + (r.right - r.left - s.cx) / 2,
r.top + (r.bottom - r.top - s.cy) / 2, (char *) c->data,
strlen((char *) c->data));
return true;
}
ctrl = c->ctrl;
id = LOWORD(wParam) - c->base_id;
if (!ctrl || !ctrl->handler)
return 0; /* nothing we can do here */
/*
* From here on we do not issue `return' statements until the
* very end of the dialog box: any event handler is entitled to
* ask for a colour selector, so we _must_ always allow control
* to reach the end of this switch statement so that the
* subsequent code can test dlg.coloursel_wanted().
*/
ret = 0;
dlg.coloursel_wanted = false;
/*
* Now switch on the control type and the message.
*/
if (msg == WM_COMMAND) {
WORD note = HIWORD(wParam);
switch (ctrl->type) {
when CTRL_RADIO:
switch (note) {
when BN_SETFOCUS or BN_KILLFOCUS:
winctrl_set_focus(ctrl, note == BN_SETFOCUS);
when BN_CLICKED or BN_DOUBLECLICKED:
/*
* We sometimes get spurious BN_CLICKED messages for the
* radio button that is just about to _lose_ selection, if
* we're switching using the arrow keys. Therefore we
* double-check that the button in wParam is actually
* checked before generating an event.
*/
if (IsDlgButtonChecked(dlg.wnd, LOWORD(wParam)))
ctrl->handler(ctrl, EVENT_VALCHANGE);
}
when CTRL_CHECKBOX:
switch (note) {
when BN_SETFOCUS or BN_KILLFOCUS:
winctrl_set_focus(ctrl, note == BN_SETFOCUS);
when BN_CLICKED or BN_DOUBLECLICKED:
ctrl->handler(ctrl, EVENT_VALCHANGE);
}
when CTRL_BUTTON:
switch (note) {
when BN_SETFOCUS or BN_KILLFOCUS:
winctrl_set_focus(ctrl, note == BN_SETFOCUS);
when BN_CLICKED or BN_DOUBLECLICKED:
ctrl->handler(ctrl, EVENT_ACTION);
}
when CTRL_FONTSELECT:
if (id == 2) {
switch (note) {
when BN_SETFOCUS or BN_KILLFOCUS:
winctrl_set_focus(ctrl, note == BN_SETFOCUS);
when BN_CLICKED or BN_DOUBLECLICKED:
select_font(c);
}
}
when CTRL_LISTBOX:
if (ctrl->listbox.height != 0 &&
(note == LBN_SETFOCUS || note == LBN_KILLFOCUS))
winctrl_set_focus(ctrl, note == LBN_SETFOCUS);
else if (ctrl->listbox.height == 0 &&
(note == CBN_SETFOCUS || note == CBN_KILLFOCUS))
winctrl_set_focus(ctrl, note == CBN_SETFOCUS);
else if (id >= 2 && (note == BN_SETFOCUS || note == BN_KILLFOCUS))
winctrl_set_focus(ctrl, note == BN_SETFOCUS);
else if (note == LBN_DBLCLK) {
SetCapture(dlg.wnd);
ctrl->handler(ctrl, EVENT_ACTION);
}
else if (note == LBN_SELCHANGE)
ctrl->handler(ctrl, EVENT_SELCHANGE);
when CTRL_EDITBOX:
if (ctrl->editbox.has_list) {
switch (note) {
when CBN_SETFOCUS:
winctrl_set_focus(ctrl, true);
when CBN_KILLFOCUS:
winctrl_set_focus(ctrl, false);
ctrl->handler(ctrl, EVENT_UNFOCUS);
when CBN_SELCHANGE: {
int index = SendDlgItemMessage(
dlg.wnd, c->base_id + 1, CB_GETCURSEL, 0, 0);
int len = SendDlgItemMessage(
dlg.wnd, c->base_id + 1, CB_GETLBTEXTLEN, index, 0);
char text[len + 1];
SendDlgItemMessage(
dlg.wnd, c->base_id + 1, CB_GETLBTEXT, index, (LPARAM) text);
SetDlgItemText(dlg.wnd, c->base_id + 1, text);
ctrl->handler(ctrl, EVENT_SELCHANGE);
}
when CBN_EDITCHANGE:
ctrl->handler(ctrl, EVENT_VALCHANGE);
}
}
else {
switch (note) {
when EN_SETFOCUS:
winctrl_set_focus(ctrl, true);
when EN_KILLFOCUS:
winctrl_set_focus(ctrl, false);
ctrl->handler(ctrl, EVENT_UNFOCUS);
when EN_CHANGE:
ctrl->handler(ctrl, EVENT_VALCHANGE);
}
}
}
}
/*
* If the above event handler has asked for a colour selector,