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#include "alfpriv.h"
/* ICONS */
typedef struct {
ALFColor bgcolor;
HICON icon;
SIZE iconsize;
} ALFIconViewPriv;
static void
ALF_IconView_Paint(HWND hwnd, ALFIconViewPriv *priv, HDC hdc, RECT *r)
{
if (priv->bgcolor == ALF_COLOR_TRANSPARENT) {
ALF_Compat_DrawThemeParentBackground(hwnd, hdc, r);
SetBkMode(hdc, TRANSPARENT);
} else {
ALF_FillRect(hdc, r, priv->bgcolor);
SetBkMode(hdc, OPAQUE);
SetBkColor(hdc, ALF_ColorToGdi(priv->bgcolor));
}
if (priv->icon) {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
int iconx = (rcClient.right - rcClient.left - priv->iconsize.cx) / 2;
int icony = (rcClient.bottom - rcClient.top - priv->iconsize.cy) / 2;
DrawIconEx(hdc, iconx, icony, priv->icon, 0, 0, 0, NULL, DI_NORMAL);
}
}
static LRESULT CALLBACK
ALF_IconView_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
ALFIconViewPriv *priv = (ALFIconViewPriv*)GetWindowLongPtr(hwnd, 0);
if (uMsg == WM_CREATE && !priv) {
priv = ALF_New(ALFIconViewPriv, 1);
priv->bgcolor = ALF_COLOR_SYS(COLOR_BTNFACE);
SetWindowLongPtr(hwnd, 0, (LONG_PTR)priv);
}
if (!priv)
return DefWindowProc(hwnd, uMsg, wParam, lParam);
if (uMsg == WM_GETDLGCODE) {
return DLGC_STATIC;
} else if (uMsg == WM_PAINT) {
PAINTSTRUCT ps;
HDC hdc = BeginPaint(hwnd, &ps);
RECT rcClient;
GetClientRect(hwnd, &rcClient);
RECT rcPaint = { 0, 0, rcClient.right - rcClient.left, rcClient.bottom - rcClient.top };
HDC hdcBuffer = NULL;
ALF_Compat_HPAINTBUFFER hpb = ALF_Compat_BeginBufferedPaint(hdc, &rcPaint, 0, NULL, &hdcBuffer);
if (hpb) {
ALF_IconView_Paint(hwnd, priv, hdcBuffer, &ps.rcPaint);
ALF_Compat_EndBufferedPaint(hpb, TRUE);
} else {
ALF_IconView_Paint(hwnd, priv, hdc, &ps.rcPaint);
}
EndPaint(hwnd, &ps);
return TRUE;
} else if (uMsg == WM_PRINTCLIENT) {
RECT rcClient;
GetClientRect(hwnd, &rcClient);
RECT rcPaint = { 0, 0, rcClient.right - rcClient.left, rcClient.bottom - rcClient.top };
ALF_IconView_Paint(hwnd, priv, (HDC)wParam, &rcPaint);
} else if (uMsg == WM_NCHITTEST) {
return HTTRANSPARENT;
} else if (uMsg == ALF_WM_QUERYSIZE) {
*(SIZE*)lParam = priv->iconsize;
return TRUE;
} else if (uMsg == WM_WINDOWPOSCHANGED) {
WINDOWPOS *p = (WINDOWPOS *)lParam;
if (!(p->flags & SWP_NOSIZE)) {
InvalidateRect(hwnd, NULL, TRUE);
}
} else if (uMsg == ALF_WM_BACKGROUNDCHANGE) {
if (priv->bgcolor == ALF_COLOR_TRANSPARENT) {
InvalidateRect(hwnd, NULL, TRUE);
}
return TRUE;
} else if (uMsg == ALF_WM_SETBGCOLOR) {
ALFColor newcolor = (ALFColor)lParam;
if (priv->bgcolor == newcolor)
return TRUE;
priv->bgcolor = newcolor;
InvalidateRect(hwnd, NULL, TRUE);
return TRUE;
} else if (uMsg == ALF_WM_GETBGCOLOR) {
return (LRESULT)priv->bgcolor;
} else if (uMsg == ALF_WM_ICONVIEW_GETICON) {
return (LRESULT)priv->icon;
} else if (uMsg == ALF_WM_ICONVIEW_SETICON) {
HICON old = priv->icon;
SIZE oldsize = priv->iconsize;
priv->icon = (HICON)lParam;
priv->iconsize = ALF_IconSize(priv->icon);
InvalidateRect(hwnd, NULL, TRUE);
if (priv->iconsize.cx != oldsize.cx || priv->iconsize.cy != oldsize.cy) {
ALF_InvalidateLayout(GetParent(hwnd));
}
return (LRESULT)old;
} else if (uMsg == WM_DESTROY) {
ALF_Free(priv);
SetWindowLongPtr(hwnd, 0, 0);
}
return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
HWND
ALF_AddIconView(HWND win, WORD id, int x, int y, HICON icon)
{
HWND hwndIV = ALF_CreateControlWindow( 0,
TEXT(""),
WS_CHILD | WS_VISIBLE,
0, 0, 100, 100,
win,
(HMENU)(ULONG_PTR)id,
ALF_IconView_WindowProc,
NULL);
ALF_AddControl(win, x, y, hwndIV, 0, 0, ALF_LAYOUT_SIZE_QUERY | ALF_LAYOUT_INHERITBGCOLOR | ALF_LAYOUT_SENDBGCHANGE);
ALF_IconView_SetIcon(hwndIV, icon);
return hwndIV;
}
HICON
ALF_IconView_Icon(HWND control)
{
return (HICON)SendMessage(control, ALF_WM_ICONVIEW_GETICON, 0, 0);
}
HICON
ALF_IconView_SetIcon(HWND control, HICON icon)
{
return (HICON)SendMessage(control, ALF_WM_ICONVIEW_SETICON, 0, (LPARAM)icon);
}
HICON
ALF_LoadIcon(HINSTANCE hinst, const TCHAR *name, int cx, int cy)
{
HICON hi;
#ifdef UNICODE
const WCHAR *namew = name;
#else
WCHAR namebuf[MAX_PATH] = {0};
const WCHAR *namew;
if (IS_INTRESOURCE(name)) {
namew = (WCHAR *)name;
} else {
MultiByteToWideChar(CP_ACP, 0, name, -1, namebuf, sizeof(namebuf)/sizeof(namebuf[0])-1);
namew = namebuf;
}
#endif
if (SUCCEEDED(ALF_Compat_LoadIconWithScaleDown(hinst, namew, cx, cy, &hi))) {
return hi;
} else {
if (hinst == NULL) {
if (IS_INTRESOURCE(name)) { // standard icon
return CopyIcon(LoadIcon(hinst, name));
} else { // .ico file
return (HICON)LoadImage(hinst, name, IMAGE_ICON, cx, cy, LR_LOADFROMFILE);
}
} else {
return (HICON)LoadImage(hinst, name, IMAGE_ICON, cx, cy, 0);
}
}
}
SIZE
ALF_IconSize(HICON icon)
{
ICONINFO ii;
SIZE s = { 0, 0 };
if (GetIconInfo(icon, &ii)) {
BITMAP bm;
if (GetObject(ii.hbmMask, sizeof(bm), &bm) == sizeof(bm)) {
s.cx = bm.bmWidth;
s.cy = ii.hbmColor ? bm.bmHeight : bm.bmHeight / 2;
}
if (ii.hbmMask) DeleteObject(ii.hbmMask);
if (ii.hbmColor) DeleteObject(ii.hbmColor);
}
return s;
}
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