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#include "alfpriv.h"
TCHAR *_alf_panelClass = NULL;
typedef struct {
ALFLayout layout;
const ALFPanelVTable *vtbl;
void *closure;
} ALFPanelPriv;
static void
ALF_Panel_IntializePriv(ALFPanelPriv *priv)
{
ALF_Layout_Init(&priv->layout);
}
static void
ALF_Panel_ClearPriv(ALFPanelPriv *priv)
{
ALF_Layout_Clear(&priv->layout);
}
static void
ALF_Panel_InternalDefPaint(ALFPanelPriv *priv, HWND hwnd, HDC dc, RECT *r)
{
if (priv->layout.bgcolor == ALF_COLOR_TRANSPARENT) {
ALF_Compat_DrawThemeParentBackground(hwnd, dc, r);
} else {
ALF_FillRect(dc, r, priv->layout.bgcolor);
}
}
void
ALF_Panel_DefPaint(HWND panel, HDC hDC, RECT *rcPaint)
{
ALFPanelPriv *priv = (ALFPanelPriv*)GetWindowLongPtr(panel, 0);
ALF_Panel_InternalDefPaint(priv, panel, hDC, rcPaint);
}
static void
ALF_Panel_Paint(ALFPanelPriv *priv, HWND hwnd, HDC dc, RECT *r)
{
if (priv->vtbl && priv->vtbl->paint) {
priv->vtbl->paint(priv->closure, hwnd, dc, r);
} else {
ALF_Panel_InternalDefPaint(priv, hwnd, dc, r);
}
}
void
ALF_Panel_SetVTable(HWND panel, const ALFPanelVTable *vtbl, void *closure)
{
ALFPanelSetVtblParams p = { vtbl, closure };
SendMessage(panel, ALF_WM_PANEL_SETVTABLE, 0, (LPARAM)&p);
}
LRESULT
ALF_Panel_DefWindowProc(HWND window, UINT msg, WPARAM wparam, LPARAM lparam)
{
ALFPanelPriv *priv = (ALFPanelPriv *)GetWindowLongPtr(window, 0);
if (msg == WM_DESTROY) {
if (priv->vtbl && priv->vtbl->destroy)
priv->vtbl->destroy(priv->closure, window);
}
if (msg == WM_ERASEBKGND) {
return TRUE;
}
if (msg == WM_PRINTCLIENT) {
RECT r = { 0, 0, 0, 0 };
GetClientRect(window, &r);
ALF_Panel_Paint(priv, window, (HDC)wparam, &r);
return TRUE;
}
if (msg == WM_PAINT) {
PAINTSTRUCT ps;
HDC dc = BeginPaint(window, &ps);
ALF_Panel_Paint(priv, window, dc, &ps.rcPaint);
EndPaint(window, &ps);
return 0;
}
if (msg == ALF_WM_PANEL_SETVTABLE) {
const ALFPanelSetVtblParams *params = (const ALFPanelSetVtblParams *)lparam;
if (!params)
return FALSE;
priv->vtbl = params->vtbl;
priv->closure = params->closure;
if (priv->vtbl->attachvtbl) {
priv->vtbl->attachvtbl(priv->closure, window);
}
return TRUE;
}
if (ALF_ShouldMessageBubble(window, msg, wparam, lparam))
return SendMessage(GetParent(window), msg, wparam, lparam);
if (msg == WM_SIZE) {
ALF_Layout_Apply(&priv->layout, window);
}
LRESULT ret = 0;
if (ALF_Layout_HandleMessage(&priv->layout, window, msg, wparam, lparam, &ret))
return ret;
return DefWindowProc(window, msg, wparam, lparam);
}
static LRESULT WINAPI
ALF__PanelWindowProc(HWND window, UINT msg, WPARAM wparam, LPARAM lparam)
{
if (msg == WM_NCCREATE) {
ALFPanelPriv *p = ALF_New(ALFPanelPriv, 1);
ALF_Panel_IntializePriv(p);
SetWindowLongPtr(window, 0, (LONG_PTR)p);
}
ALFPanelPriv *priv = (ALFPanelPriv *)GetWindowLongPtr(window, 0);
if (msg == WM_NCDESTROY) {
ALF_Panel_ClearPriv(priv);
ALF_Free(priv);
priv = NULL;
SetWindowLongPtr(window, 0, 0);
}
if (priv) {
if (priv->vtbl && priv->vtbl->message) {
return priv->vtbl->message(priv->closure, window, msg, wparam, lparam);
} else {
return ALF_Panel_DefWindowProc(window, msg, wparam, lparam);
}
} else {
return DefWindowProc(window, msg, wparam, lparam);
}
}
void
ALF_RegisterPanelClass(void)
{
WNDCLASS cls;
ZeroMemory(&cls, sizeof(cls));
TCHAR classNameBuf[256];
ALF_BuildUniqueName(classNameBuf, TEXT("ALFPanel."), (ULONG_PTR)&_alf_panelClass);
cls.hInstance = ALF_HINSTANCE;
cls.hCursor = LoadCursor(NULL, (LPTSTR)IDC_ARROW);
cls.lpszClassName = classNameBuf;
cls.cbWndExtra = sizeof(void*);
cls.lpfnWndProc = ALF__PanelWindowProc;
ATOM classatom = RegisterClass(&cls);
if (!classatom)
MessageBox(NULL, TEXT("FATAL: Could not register panel class"), NULL, MB_OK);
_alf_panelClass = MAKEINTATOM(classatom);
}
HWND
ALF_CreatePanelWindow(HWND parent, WORD id)
{
return CreateWindowEx(WS_EX_CONTROLPARENT,
_alf_panelClass,
TEXT(""),
WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN,
0, 0, 0, 0,
parent,
(HMENU)(int)id,
ALF_HINSTANCE,
NULL);
}
HWND
ALF_AddPanel(HWND parent, WORD id, int x, int y)
{
HWND hwndPanel = ALF_CreatePanelWindow(parent, id);
ALF_AddWidget(parent, x, y, hwndPanel, 0, 0, ALF_LAYOUT_SIZE_QUERY | ALF_LAYOUT_INHERITFONT | ALF_LAYOUT_INHERITBGCOLOR | ALF_LAYOUT_SENDBGCHANGE | ALF_LAYOUT_SENDDPICHANGE);
return hwndPanel;
}
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