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/*
Copyright 2000-2010 Miranda IM project,
all portions of this codebase are copyrighted to the people
listed in contributors.txt.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "commonheaders.h"
#include "richutil.h"
/*
To initialize this library, call:
RichUtil_Load();
Before the application exits, call:
RichUtil_Unload();
Then to use the library (it draws the xp border around it), you need
to make sure you control has the WS_EX_STATICEDGE flag. Then you just
subclass it with:
RichUtil_SubClass(hwndEdit);
If no xptheme is present, the window isn't subclassed the SubClass function
just returns. And if WS_EX_STATICEDGE isn't present, the subclass does nothing.
Otherwise it removes the border and draws it by itself.
*/
extern struct LIST_INTERFACE li;
static SortedList sListInt;
static int RichUtil_CmpVal(void *p1, void *p2)
{
TRichUtil *tp1 = (TRichUtil*)p1;
TRichUtil *tp2 = (TRichUtil*)p2;
return (int)((INT_PTR)tp1->hwnd - (INT_PTR)tp2->hwnd);
}
// UxTheme Stuff
HMODULE mTheme;
HANDLE (WINAPI *MyOpenThemeData)(HWND, LPCWSTR);
HRESULT (WINAPI *MyCloseThemeData)(HANDLE);
BOOL (WINAPI *MyIsThemeActive)(VOID);
HRESULT (WINAPI *MyDrawThemeBackground)(HANDLE, HDC, int, int, LPCRECT, LPCRECT);
HRESULT (WINAPI *MyGetThemeBackgroundContentRect)(HANDLE, HDC, int, int, LPCRECT, LPRECT);
HRESULT (WINAPI *MyDrawThemeParentBackground)(HWND, HDC, LPRECT);
BOOL (WINAPI *MyIsThemeBackgroundPartiallyTransparent)(HANDLE, int, int);
HRESULT (WINAPI *MyDrawThemeText)(HANDLE, HDC, int, int, LPCWSTR, int, DWORD, DWORD, LPCRECT);
HRESULT (WINAPI *MyEnableThemeDialogTexture)(HWND, DWORD);
BOOL (WINAPI *MyIsAppThemed)(VOID);
static CRITICAL_SECTION csRich;
static LRESULT CALLBACK RichUtil_Proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam);
static void RichUtil_ClearUglyBorder(TRichUtil *ru);
void RichUtil_Load(void)
{
sListInt.increment = 10;
sListInt.sortFunc = RichUtil_CmpVal;
mTheme = IsWinVerXPPlus() ? GetModuleHandleA("uxtheme") : 0;
InitializeCriticalSection(&csRich);
if (!mTheme) return;
MyOpenThemeData = (HANDLE (WINAPI *)(HWND, LPCWSTR))GetProcAddress(mTheme, "OpenThemeData");
MyCloseThemeData = (HRESULT (WINAPI *)(HANDLE))GetProcAddress(mTheme, "CloseThemeData");
MyIsThemeActive = (BOOL (WINAPI *)())GetProcAddress(mTheme, "IsThemeActive");
MyIsAppThemed = (BOOL (WINAPI *)(VOID))GetProcAddress(mTheme, "IsAppThemed");
MyDrawThemeBackground = (HRESULT (WINAPI *)(HANDLE, HDC, int, int, const RECT*, const RECT *))GetProcAddress(mTheme, "DrawThemeBackground");
MyGetThemeBackgroundContentRect = (HRESULT (WINAPI *)(HANDLE, HDC, int, int, const RECT *, RECT *))GetProcAddress(mTheme, "GetThemeBackgroundContentRect");
MyDrawThemeParentBackground = (HRESULT (WINAPI *)(HWND, HDC, RECT*))GetProcAddress(mTheme, "DrawThemeParentBackground");
MyIsThemeBackgroundPartiallyTransparent = (BOOL (WINAPI *)(HANDLE, int, int))GetProcAddress(mTheme, "IsThemeBackgroundPartiallyTransparent");
MyDrawThemeText = (HRESULT (WINAPI *)(HANDLE, HDC, int, int, LPCWSTR, int, DWORD, DWORD, const RECT *))GetProcAddress(mTheme, "DrawThemeText");
MyEnableThemeDialogTexture = (HRESULT (WINAPI *)(HWND, DWORD))GetProcAddress(mTheme, "EnableThemeDialogTexture");
if (!MyOpenThemeData ||
!MyCloseThemeData ||
!MyIsThemeActive ||
!MyDrawThemeBackground ||
!MyGetThemeBackgroundContentRect ||
!MyDrawThemeParentBackground ||
!MyIsThemeBackgroundPartiallyTransparent)
{
FreeLibrary(mTheme);
mTheme = NULL;
}
}
void RichUtil_Unload(void)
{
List_Destroy(&sListInt);
DeleteCriticalSection(&csRich);
if (mTheme)
FreeLibrary(mTheme);
}
int RichUtil_SubClass(HWND hwndEdit)
{
if (IsWindow(hwndEdit))
{
int idx;
TRichUtil *ru = (TRichUtil*)mir_calloc(sizeof(TRichUtil));
ru->hwnd = hwndEdit;
ru->hasUglyBorder = 0;
EnterCriticalSection(&csRich);
if (!List_GetIndex(&sListInt, ru, &idx))
List_Insert(&sListInt, ru, idx);
LeaveCriticalSection(&csRich);
ru->origProc = (WNDPROC)SetWindowLongPtr(ru->hwnd, GWLP_WNDPROC, (LONG_PTR)&RichUtil_Proc);
RichUtil_ClearUglyBorder(ru);
return 1;
}
return 0;
}
static LRESULT CALLBACK RichUtil_Proc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
TRichUtil *ru = NULL, tru;
int idx;
tru.hwnd = hwnd;
EnterCriticalSection(&csRich);
if (List_GetIndex(&sListInt, &tru, &idx))
ru = (TRichUtil*)sListInt.items[idx];
LeaveCriticalSection(&csRich);
switch(msg)
{
case WM_THEMECHANGED:
case WM_STYLECHANGED:
{
RichUtil_ClearUglyBorder(ru);
break;
}
case WM_NCPAINT:
{
LRESULT ret = CallWindowProc(ru->origProc, hwnd, msg, wParam, lParam);
if (ru->hasUglyBorder && MyIsThemeActive())
{
HANDLE hTheme = MyOpenThemeData(ru->hwnd, L"EDIT");
if (hTheme)
{
RECT rcBorder;
RECT rcClient;
int nState;
HDC hdc = GetWindowDC(ru->hwnd);
GetWindowRect(hwnd, &rcBorder);
rcBorder.right -= rcBorder.left; rcBorder.bottom -= rcBorder.top;
rcBorder.left = rcBorder.top = 0;
CopyRect(&rcClient, &rcBorder);
rcClient.left += ru->rect.left;
rcClient.top += ru->rect.top;
rcClient.right -= ru->rect.right;
rcClient.bottom -= ru->rect.bottom;
ExcludeClipRect(hdc, rcClient.left, rcClient.top, rcClient.right, rcClient.bottom);
if (MyIsThemeBackgroundPartiallyTransparent(hTheme, EP_EDITTEXT, ETS_NORMAL))
MyDrawThemeParentBackground(hwnd, hdc, &rcBorder);
if (!IsWindowEnabled(hwnd))
nState = ETS_DISABLED;
else if (SendMessage(hwnd, EM_GETOPTIONS, 0, 0) & ECO_READONLY)
nState = ETS_READONLY;
else nState = ETS_NORMAL;
MyDrawThemeBackground(hTheme, hdc, EP_EDITTEXT, nState, &rcBorder, NULL);
MyCloseThemeData(hTheme);
ReleaseDC(hwnd, hdc);
return 0;
}
}
return ret;
}
case WM_NCCALCSIZE:
{
LRESULT ret = CallWindowProc(ru->origProc, hwnd, msg, wParam, lParam);
NCCALCSIZE_PARAMS *ncsParam = (NCCALCSIZE_PARAMS*)lParam;
if (ru->hasUglyBorder && MyIsThemeActive())
{
HANDLE hTheme = MyOpenThemeData(hwnd, L"EDIT");
if (hTheme)
{
RECT rcClient ={0};
HDC hdc = GetDC(GetParent(hwnd));
if (MyGetThemeBackgroundContentRect(hTheme, hdc, EP_EDITTEXT, ETS_NORMAL, &ncsParam->rgrc[0], &rcClient) == S_OK)
{
ru->rect.left = rcClient.left-ncsParam->rgrc[0].left;
ru->rect.top = rcClient.top-ncsParam->rgrc[0].top;
ru->rect.right = ncsParam->rgrc[0].right-rcClient.right;
ru->rect.bottom = ncsParam->rgrc[0].bottom-rcClient.bottom;
ncsParam->rgrc[0] = rcClient;
MyCloseThemeData(hTheme);
ReleaseDC(GetParent(hwnd), hdc);
return WVR_REDRAW;
}
ReleaseDC(GetParent(hwnd), hdc);
MyCloseThemeData(hTheme);
}
}
return ret;
}
case WM_ENABLE:
RedrawWindow(hwnd, NULL, NULL, RDW_INVALIDATE | RDW_NOCHILDREN | RDW_UPDATENOW | RDW_FRAME);
break;
case WM_GETDLGCODE:
return CallWindowProc(ru->origProc, hwnd, msg, wParam, lParam) & ~DLGC_HASSETSEL;
case WM_NCDESTROY:
{
LRESULT ret = CallWindowProc(ru->origProc, hwnd, msg, wParam, lParam);
if (IsWindow(hwnd))
{
if ((WNDPROC)GetWindowLongPtr(hwnd, GWLP_WNDPROC) == &RichUtil_Proc)
SetWindowLongPtr(hwnd, GWLP_WNDPROC, (LONG_PTR)ru->origProc);
}
EnterCriticalSection(&csRich);
List_Remove(&sListInt, idx);
LeaveCriticalSection(&csRich);
mir_free(ru);
return ret;
}
}
return CallWindowProc(ru->origProc, hwnd, msg, wParam, lParam);
}
static void RichUtil_ClearUglyBorder(TRichUtil *ru)
{
if (mTheme && MyIsThemeActive() && GetWindowLongPtr(ru->hwnd, GWL_EXSTYLE) & WS_EX_STATICEDGE)
{
ru->hasUglyBorder = 1;
SetWindowLongPtr(ru->hwnd, GWL_EXSTYLE, GetWindowLongPtr(ru->hwnd, GWL_EXSTYLE) ^ WS_EX_STATICEDGE);
}
// Redraw window since the style may have changed
SetWindowPos(ru->hwnd, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_FRAMECHANGED);
RedrawWindow(ru->hwnd, NULL, NULL, RDW_INVALIDATE | RDW_NOCHILDREN | RDW_UPDATENOW | RDW_FRAME);
}
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