diff options
Diffstat (limited to 'plugins/SendScreenshotPlus/src/ctrl_button.cpp')
| -rw-r--r-- | plugins/SendScreenshotPlus/src/ctrl_button.cpp | 699 |
1 files changed, 699 insertions, 0 deletions
diff --git a/plugins/SendScreenshotPlus/src/ctrl_button.cpp b/plugins/SendScreenshotPlus/src/ctrl_button.cpp new file mode 100644 index 0000000000..ad8e542fa3 --- /dev/null +++ b/plugins/SendScreenshotPlus/src/ctrl_button.cpp @@ -0,0 +1,699 @@ +/*
+Miranda IM
+Copyright (C) 2002 Robert Rainwater
+
+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 "global.h"
+
+// Used for our own cheap TrackMouseEvent
+#define BUTTON_POLLID 100
+#define BUTTON_POLLDELAY 50
+
+#define MGPROC(x) GetProcAddress(themeAPIHandle,x)
+
+typedef struct TMBCtrl{
+ HWND hwnd;
+ HANDLE hThemeButton;
+ HANDLE hThemeToolbar;
+
+ HICON hIcon;
+ HICON arrow; // uses down arrow
+ HBITMAP hBitmap;
+ HFONT hFont; // font
+
+ DWORD dwStyle;
+ BOOLEAN bFocus;
+
+ INT stateId; // button state
+ INT defbutton; // default button
+ INT pbState;
+ TCHAR cHot;
+} BTNCTRL, *LPBTNCTRL;
+
+// External theme methods and properties
+CRITICAL_SECTION csTips;
+HWND hwndToolTips = NULL;
+HMODULE themeAPIHandle = NULL;
+
+// theme procedures
+HANDLE (WINAPI *OpenThemeData)(HWND,LPCWSTR);
+HRESULT (WINAPI *CloseThemeData)(HANDLE);
+BOOL (WINAPI *IsThemeBackgroundPartiallyTransparent)(HANDLE,INT,INT);
+HRESULT (WINAPI *DrawThemeParentBackground)(HWND,HDC,RECT *);
+HRESULT (WINAPI *DrawThemeBackground)(HANDLE,HDC,INT,INT,const RECT *,const RECT *);
+HRESULT (WINAPI *DrawThemeText)(HANDLE,HDC,INT,INT,LPCWSTR,INT,DWORD,DWORD,const RECT *);
+HRESULT (WINAPI *GetThemeTextExtent)(HANDLE,HDC,INT,INT,LPCWSTR,INT,DWORD,OPTIONAL const RECT*, RECT *);
+HRESULT (WINAPI *GetThemeBackgroundRegion)(HANDLE,HDC,INT,INT,const RECT *,HRGN *);
+
+/**
+ * name: ThemeSupport
+ * desc: Loads the uxtheme functions, if supported by the os
+ * param: none
+ * return: TRUE if themes are supported, FALSE if not
+ **/
+BOOLEAN __fastcall ThemeSupport() {
+ if (IsWinVerXPPlus()) {
+ if (!themeAPIHandle) {
+ themeAPIHandle = GetModuleHandleA("uxtheme");
+ if (themeAPIHandle) {
+ OpenThemeData = (HANDLE (WINAPI *)(HWND,LPCWSTR))MGPROC("OpenThemeData");
+ CloseThemeData = (HRESULT (WINAPI *)(HANDLE))MGPROC("CloseThemeData");
+ IsThemeBackgroundPartiallyTransparent = (BOOL (WINAPI *)(HANDLE,INT,INT))MGPROC("IsThemeBackgroundPartiallyTransparent");
+ DrawThemeParentBackground = (HRESULT (WINAPI *)(HWND,HDC,RECT *))MGPROC("DrawThemeParentBackground");
+ DrawThemeBackground = (HRESULT (WINAPI *)(HANDLE,HDC,INT,INT,const RECT *,const RECT *))MGPROC("DrawThemeBackground");
+ DrawThemeText = (HRESULT (WINAPI *)(HANDLE,HDC,INT,INT,LPCWSTR,INT,DWORD,DWORD,const RECT *))MGPROC("DrawThemeText");
+ GetThemeTextExtent = (HRESULT (WINAPI *)(HANDLE,HDC,INT,INT,LPCWSTR,INT,DWORD,OPTIONAL const RECT*, RECT *))MGPROC("GetThemeTextExtent");
+ GetThemeBackgroundRegion = (HRESULT (WINAPI *)(HANDLE,HDC,INT,INT,const RECT *,HRGN *))MGPROC("GetThemeBackgroundRegion");
+ }
+ }
+ // Make sure all of these methods are valid (i would hope either all or none work)
+ if (OpenThemeData
+ && CloseThemeData
+ && IsThemeBackgroundPartiallyTransparent
+ && DrawThemeParentBackground
+ && DrawThemeBackground
+ && DrawThemeText
+ && GetThemeTextExtent)
+ {
+ return TRUE;
+ }
+ }
+ return FALSE;
+}
+
+/**
+ * name: DestroyTheme
+ * desc: destroys theme data for buttons
+ * param: ctl - BTNCTRL structure with the information about the theme to close
+ * return: nothing
+ **/
+static VOID __fastcall DestroyTheme(BTNCTRL *ctl) {
+ if (ctl->hThemeButton) {
+ CloseThemeData(ctl->hThemeButton);
+ ctl->hThemeButton = NULL;
+ }
+ if (ctl->hThemeToolbar) {
+ CloseThemeData(ctl->hThemeToolbar);
+ ctl->hThemeToolbar = NULL;
+ }
+}
+
+/**
+ * name: LoadTheme
+ * desc: load theme data for buttons if supported by os
+ * param: ctl - BTNCTRL structure with the information about the theme to load
+ * return: nothing
+ **/
+static VOID __fastcall LoadTheme(BTNCTRL *ctl) {
+ if (ThemeSupport()) {
+ DestroyTheme(ctl);
+ ctl->hThemeButton = OpenThemeData(ctl->hwnd,L"BUTTON");
+ ctl->hThemeToolbar = OpenThemeData(ctl->hwnd,L"TOOLBAR");
+ }
+}
+
+/**
+ * name: TBStateConvert2Flat
+ * desc: convert button stateIDs
+ * param: state - state id for the normal theme button
+ * return: stateID for the flat theme button
+ **/
+static INT __fastcall TBStateConvert2Flat(INT state) {
+ switch (state) {
+ case PBS_NORMAL: return TS_NORMAL;
+ case PBS_HOT: return TS_HOT;
+ case PBS_PRESSED: return TS_PRESSED;
+ case PBS_DISABLED: return TS_DISABLED;
+ case PBS_DEFAULTED: return TS_NORMAL;
+ }
+ return TS_NORMAL;
+}
+
+/**
+ * name: PaintIcon
+ * desc: Draws the Icon of the button
+ * param: ctl - BTNCTRL structure for the button
+ * hdcMem - device context to draw to
+ * ccText - character count of the text of the button
+ * rcClient - rectangle of the whole button
+ * rcText - rectangle of the text to draw later on
+ * return: nothing
+ **/
+static VOID __fastcall PaintIcon(BTNCTRL *ctl, HDC hdcMem, LPWORD ccText, LPRECT rcClient, LPRECT rcText)
+{
+ RECT rcImage;
+
+ // draw icon on the left of the button
+ if (ctl->hIcon) {
+ rcImage.right = GetSystemMetrics(SM_CXSMICON);
+ rcImage.bottom = GetSystemMetrics(SM_CYSMICON);
+ rcImage.left = (rcClient->right - rcClient->left) / 2 - ((rcImage.right + rcText->right + (*ccText > 0 ? 4 : 0) + (ctl->arrow ? rcImage.right : 0)) / 2);
+ rcImage.top = (rcClient->bottom - rcClient->top - rcImage.bottom) / 2;
+ rcImage.right += rcImage.left;
+ rcImage.bottom += rcImage.top;
+
+ OffsetRect(rcText, rcImage.right + 4, 0);
+ if (ctl->stateId == PBS_PRESSED) OffsetRect(&rcImage, 1, 1);
+
+ DrawState(hdcMem, NULL, NULL, (LPARAM)ctl->hIcon, 0,
+ rcImage.left, rcImage.top,
+ rcImage.right - rcImage.left, rcImage.bottom - rcImage.top,
+ IsWindowEnabled(ctl->hwnd) ? DST_ICON | DSS_NORMAL : DST_ICON | DSS_DISABLED);
+ }
+
+ // draw arrow on the right of the button
+ if (ctl->arrow) {
+ rcImage.right = GetSystemMetrics(SM_CXSMICON);
+ rcImage.left = (*ccText > 0 || ctl->hIcon)
+ ? rcClient->right - GetSystemMetrics(SM_CXSMICON)
+ : (rcClient->right - rcClient->left - rcImage.right) / 2;
+ rcImage.right += rcImage.left;
+ rcImage.bottom = GetSystemMetrics(SM_CYSMICON);
+ rcImage.top = (rcClient->bottom - rcClient->top - rcImage.bottom) / 2;
+ if (ctl->stateId == PBS_PRESSED) OffsetRect(&rcImage, 1, 1);
+
+ DrawState(hdcMem, NULL, NULL, (LPARAM)ctl->arrow, 0,
+ rcImage.left, rcImage.top,
+ rcImage.right - rcImage.left, rcImage.bottom - rcImage.top,
+ IsWindowEnabled(ctl->hwnd) ? DST_ICON | DSS_NORMAL : DST_ICON | DSS_DISABLED);
+ }
+}
+
+/**
+ * name: PaintThemeButton
+ * desc: Draws the themed button
+ * param: ctl - BTNCTRL structure for the button
+ * hdcMem - device context to draw to
+ * rcClient - rectangle of the whole button
+ * return: nothing
+ **/
+static VOID __fastcall PaintThemeButton(BTNCTRL *ctl, HDC hdcMem, LPRECT rcClient)
+{
+ RECT rcText = { 0, 0, 0, 0 };
+ WCHAR wszText[MAX_PATH] = { 0 };
+ WORD ccText;
+
+ // Draw the flat button
+ if ((ctl->dwStyle & MBS_FLAT) && ctl->hThemeToolbar) {
+ INT state = IsWindowEnabled(ctl->hwnd)
+ ? (ctl->stateId == PBS_NORMAL && ctl->defbutton
+ ? PBS_DEFAULTED
+ : ctl->stateId)
+ : PBS_DISABLED;
+ if (IsThemeBackgroundPartiallyTransparent(ctl->hThemeToolbar, TP_BUTTON, TBStateConvert2Flat(state))) {
+ if (SUCCEEDED(DrawThemeParentBackground(ctl->hwnd, hdcMem, rcClient)))
+ DrawThemeParentBackground(GetParent(ctl->hwnd), hdcMem, rcClient);
+ }
+ DrawThemeBackground(ctl->hThemeToolbar, hdcMem, TP_BUTTON, TBStateConvert2Flat(state), rcClient, rcClient);
+ }
+ else {
+ // draw themed button background
+ if (ctl->hThemeButton) {
+ INT state = IsWindowEnabled(ctl->hwnd)
+ ? (ctl->stateId == PBS_NORMAL && ctl->defbutton
+ ? PBS_DEFAULTED
+ : ctl->stateId)
+ : PBS_DISABLED;
+ if (IsThemeBackgroundPartiallyTransparent(ctl->hThemeButton, BP_PUSHBUTTON, state)) {
+ if (SUCCEEDED(DrawThemeParentBackground(ctl->hwnd, hdcMem, rcClient)))
+ DrawThemeParentBackground(GetParent(ctl->hwnd), hdcMem, rcClient);
+ }
+ DrawThemeBackground(ctl->hThemeButton, hdcMem, BP_PUSHBUTTON, state, rcClient, rcClient);
+ }
+ }
+
+ // calculate text rect
+ {
+ RECT sizeText;
+ HFONT hOldFont;
+
+ ccText = GetWindowTextW(ctl->hwnd, wszText, sizeof(wszText) / sizeof(WCHAR));
+
+ if (ccText > 0) {
+ hOldFont = (HFONT)SelectObject(hdcMem, ctl->hFont);
+
+ GetThemeTextExtent(
+ ctl->hThemeButton,
+ hdcMem,
+ BP_PUSHBUTTON,
+ IsWindowEnabled(ctl->hwnd) ? ctl->stateId : PBS_DISABLED,
+ wszText,
+ ccText,
+ DST_PREFIXTEXT,
+ NULL,
+ &sizeText);
+
+ if (ctl->cHot) {
+ RECT rcHot;
+
+ GetThemeTextExtent(ctl->hThemeButton,
+ hdcMem,
+ BP_PUSHBUTTON,
+ IsWindowEnabled(ctl->hwnd) ? ctl->stateId : PBS_DISABLED,
+ L"&",
+ 1,
+ DST_PREFIXTEXT,
+ NULL,
+ &rcHot);
+
+ sizeText.right -= (rcHot.right - rcHot.left);
+ }
+ SelectObject(hdcMem, hOldFont);
+
+ rcText.left = (ctl->hIcon) ? 0 : (rcClient->right - rcClient->left - (sizeText.right - sizeText.left)) / 2;
+ rcText.top = (rcClient->bottom - rcClient->top - (sizeText.bottom - sizeText.top)) / 2;
+ rcText.right = rcText.left + (sizeText.right - sizeText.left);
+ rcText.bottom = rcText.top + (sizeText.bottom - sizeText.top);
+ if (ctl->stateId == PBS_PRESSED) {
+ OffsetRect(&rcText, 1, 1);
+ }
+ }
+ }
+ PaintIcon(ctl, hdcMem, &ccText, rcClient, &rcText);
+ // draw text
+ if (ccText > 0 && ctl->hThemeButton) {
+ HFONT hOldFont = (HFONT)SelectObject(hdcMem, ctl->hFont);
+ DrawThemeText(ctl->hThemeButton, hdcMem, BP_PUSHBUTTON, IsWindowEnabled(ctl->hwnd) ? ctl->stateId : PBS_DISABLED, wszText, ccText, DST_PREFIXTEXT, 0, &rcText);
+ SelectObject(hdcMem, hOldFont);
+ }
+}
+
+/**
+ * name: PaintThemeButton
+ * desc: Draws the none themed button
+ * param: ctl - BTNCTRL structure for the button
+ * hdcMem - device context to draw to
+ * rcClient - rectangle of the whole button
+ * return: nothing
+ **/
+static VOID __fastcall PaintButton(BTNCTRL *ctl, HDC hdcMem, LPRECT rcClient)
+{
+ RECT rcText = { 0, 0, 0, 0 };
+ TCHAR szText[MAX_PATH] = { 0 };
+ WORD ccText;
+
+ // Draw the flat button
+ if (ctl->dwStyle & MBS_FLAT) {
+ HBRUSH hbr = NULL;
+
+ if (ctl->stateId == PBS_PRESSED || ctl->stateId == PBS_HOT)
+ hbr = GetSysColorBrush(COLOR_3DLIGHT);
+ else {
+ HDC dc;
+ HWND hwndParent;
+
+ hwndParent = GetParent(ctl->hwnd);
+ if (dc = GetDC(hwndParent)) {
+ hbr = (HBRUSH)SendMessage(hwndParent, WM_CTLCOLORDLG, (WPARAM)dc, (LPARAM)hwndParent);
+ ReleaseDC(hwndParent, dc);
+ }
+ }
+ if (hbr) {
+ FillRect(hdcMem, rcClient, hbr);
+ DeleteObject(hbr);
+ }
+ if (ctl->stateId == PBS_HOT || ctl->bFocus) {
+ if (ctl->pbState) DrawEdge(hdcMem, rcClient, EDGE_ETCHED, BF_RECT|BF_SOFT);
+ else DrawEdge(hdcMem, rcClient, BDR_RAISEDOUTER, BF_RECT|BF_SOFT|BF_FLAT);
+ }
+ else
+ if (ctl->stateId == PBS_PRESSED)
+ DrawEdge(hdcMem, rcClient, BDR_SUNKENOUTER, BF_RECT|BF_SOFT);
+ }
+ else {
+ UINT uState = DFCS_BUTTONPUSH|((ctl->stateId == PBS_HOT) ? DFCS_HOT : 0)|((ctl->stateId == PBS_PRESSED) ? DFCS_PUSHED : 0);
+ if (ctl->defbutton&&ctl->stateId==PBS_NORMAL) uState |= DLGC_DEFPUSHBUTTON;
+ DrawFrameControl(hdcMem, rcClient, DFC_BUTTON, uState);
+ // Draw focus rectangle if button has focus
+ if (ctl->bFocus) {
+ RECT focusRect = *rcClient;
+ InflateRect(&focusRect, -3, -3);
+ DrawFocusRect(hdcMem, &focusRect);
+ }
+ }
+ // calculate text rect
+ {
+ SIZE sizeText;
+ HFONT hOldFont;
+
+ ccText = GetWindowText(ctl->hwnd, szText, SIZEOF(szText));
+
+ if (ccText > 0) {
+ hOldFont = (HFONT)SelectObject(hdcMem, ctl->hFont);
+ GetTextExtentPoint32(hdcMem, szText, ccText, &sizeText);
+ if (ctl->cHot) {
+ SIZE sizeHot;
+
+ GetTextExtentPoint32A(hdcMem, "&", 1, &sizeHot);
+ sizeText.cx -= sizeHot.cx;
+ }
+ SelectObject(hdcMem, hOldFont);
+
+ rcText.left = (ctl->hIcon) ? 0 : (rcClient->right - rcClient->left - sizeText.cx) / 2;
+ rcText.top = (rcClient->bottom - rcClient->top - sizeText.cy) / 2;
+ rcText.right = rcText.left + sizeText.cx;
+ rcText.bottom = rcText.top + sizeText.cy;
+ if (ctl->stateId == PBS_PRESSED)
+ OffsetRect(&rcText, 1, 1);
+ }
+ }
+ PaintIcon(ctl, hdcMem, &ccText, rcClient, &rcText);
+
+ // draw text
+ if (ccText > 0) {
+ HFONT hOldFont;
+
+ hOldFont = (HFONT)SelectObject(hdcMem, ctl->hFont);
+
+ SetBkMode(hdcMem, TRANSPARENT);
+ SetTextColor(hdcMem,
+ IsWindowEnabled(ctl->hwnd) || !ctl->hThemeButton
+ ? ctl->stateId == PBS_HOT
+ ? GetSysColor(COLOR_HOTLIGHT)
+ : GetSysColor(COLOR_BTNTEXT)
+ : GetSysColor(COLOR_GRAYTEXT));
+
+ DrawState(hdcMem, NULL, NULL, (LPARAM)szText, 0,
+ rcText.left, rcText.top, rcText.right - rcText.left, rcText.bottom - rcText.top,
+ IsWindowEnabled(ctl->hwnd) || ctl->hThemeButton ? DST_PREFIXTEXT | DSS_NORMAL : DST_PREFIXTEXT | DSS_DISABLED);
+ SelectObject(hdcMem, hOldFont);
+ }
+}
+
+/**
+ * name: Button_WndProc
+ * desc: window procedure for the button class
+ * param: hwndBtn - window handle to the button
+ * uMsg - message to handle
+ * wParam - message specific parameter
+ * lParam - message specific parameter
+ * return: message specific
+ **/
+static LRESULT CALLBACK Button_WndProc(HWND hwndBtn, UINT uMsg, WPARAM wParam, LPARAM lParam) {
+ LPBTNCTRL bct = (LPBTNCTRL)GetWindowLongPtr(hwndBtn, 0);
+
+ switch (uMsg) {
+ case WM_NCCREATE:
+ {
+ LPCREATESTRUCT cs = (LPCREATESTRUCT)lParam;
+
+ cs->style |= BS_OWNERDRAW;
+ if (!(bct = (LPBTNCTRL)malloc(sizeof(BTNCTRL))))
+ return FALSE;
+ ZeroMemory(bct, sizeof(BTNCTRL));
+ bct->hwnd = hwndBtn;
+ bct->stateId = PBS_NORMAL;
+ bct->hFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
+ bct->dwStyle = cs->style;
+ if (cs->style & MBS_DOWNARROW)
+ bct->arrow = IcoLib_GetIcon(ICO_BTN_DOWNARROW);
+ LoadTheme(bct);
+ SetWindowLongPtr(hwndBtn, 0, (LONG_PTR)bct);
+ if (cs->lpszName) SetWindowText(hwndBtn, cs->lpszName);
+ return TRUE;
+ }
+ case WM_DESTROY:
+ if (bct) {
+ EnterCriticalSection(&csTips);
+ if (hwndToolTips) {
+ TOOLINFO ti;
+
+ ZeroMemory(&ti, sizeof(ti));
+ ti.cbSize = sizeof(ti);
+ ti.uFlags = TTF_IDISHWND;
+ ti.hwnd = bct->hwnd;
+ ti.uId = (UINT)bct->hwnd;
+ if (SendMessage(hwndToolTips, TTM_GETTOOLINFO, 0, (LPARAM)&ti)) {
+ SendMessage(hwndToolTips, TTM_DELTOOL, 0, (LPARAM)&ti);
+ }
+ if (SendMessage(hwndToolTips, TTM_GETTOOLCOUNT, 0, (LPARAM)&ti) == 0) {
+ DestroyWindow(hwndToolTips);
+ hwndToolTips = NULL;
+ }
+ }
+ LeaveCriticalSection(&csTips);
+ DestroyTheme(bct);
+ free(bct);
+ }
+ SetWindowLongPtr(hwndBtn, 0, NULL);
+ break;
+ case WM_SETTEXT:
+ bct->cHot = 0;
+ if ((LPTSTR)lParam) {
+ LPTSTR tmp = (LPTSTR)lParam;
+
+ while (*tmp) {
+ if (*tmp=='&' && *(tmp+1)) {
+ bct->cHot = _totlower(*(tmp+1));
+ break;
+ }
+ tmp++;
+ }
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+ case WM_SYSKEYUP:
+ if (bct->stateId != PBS_DISABLED && bct->cHot && bct->cHot == _totlower((TCHAR)wParam)) {
+ if (bct->dwStyle & MBS_PUSHBUTTON) {
+ if (bct->pbState) bct->pbState = 0;
+ else bct->pbState = 1;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ else
+ SetFocus(hwndBtn);
+ SendMessage(GetParent(hwndBtn), WM_COMMAND, MAKELONG(GetDlgCtrlID(hwndBtn), BN_CLICKED), (LPARAM)hwndBtn);
+ return 0;
+ }
+ break;
+ case WM_THEMECHANGED:
+ {
+ // themed changed, reload theme object
+ LoadTheme(bct);
+ InvalidateRect(bct->hwnd, NULL, TRUE); // repaint it
+ break;
+ }
+ case WM_SETFONT: // remember the font so we can use it later
+ bct->hFont = (HFONT)wParam; // maybe we should redraw?
+ break;
+ case WM_NCPAINT:
+ case WM_PAINT:
+ {
+ PAINTSTRUCT ps;
+ HDC hdcPaint;
+ HDC hdcMem;
+ HBITMAP hbmMem;
+ HDC hOld;
+ RECT rcClient;
+
+ if (hdcPaint = BeginPaint(hwndBtn, &ps)) {
+ GetClientRect(bct->hwnd, &rcClient);
+ hdcMem = CreateCompatibleDC(hdcPaint);
+ hbmMem = CreateCompatibleBitmap(hdcPaint, rcClient.right - rcClient.left, rcClient.bottom - rcClient.top);
+ hOld = (HDC)SelectObject(hdcMem, hbmMem);
+
+ // If its a push button, check to see if it should stay pressed
+ if ((bct->dwStyle & MBS_PUSHBUTTON) && bct->pbState) bct->stateId = PBS_PRESSED;
+
+ if ((bct->dwStyle & MBS_FLAT) && bct->hThemeToolbar || bct->hThemeButton)
+ PaintThemeButton(bct, hdcMem, &rcClient);
+ else
+ PaintButton(bct, hdcMem, &rcClient);
+
+ BitBlt(hdcPaint, 0, 0, rcClient.right - rcClient.left, rcClient.bottom - rcClient.top, hdcMem, 0, 0, SRCCOPY);
+ SelectObject(hdcMem, hOld);
+ DeleteObject(hbmMem);
+ DeleteDC(hdcMem);
+ EndPaint(hwndBtn, &ps);
+ }
+ return 0;
+ }
+ case BM_SETIMAGE:
+ if (wParam == IMAGE_ICON) {
+ bct->hIcon = (HICON)lParam;
+ bct->hBitmap = NULL;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ else if (wParam == IMAGE_BITMAP) {
+ bct->hIcon = NULL;
+ bct->hBitmap = (HBITMAP)lParam;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ else if (wParam == NULL && lParam == NULL) {
+ bct->hIcon = NULL;
+ bct->hBitmap = NULL;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+ case BM_SETCHECK:
+ if (!(bct->dwStyle & MBS_PUSHBUTTON)) break;
+ if (wParam == BST_CHECKED) {
+ bct->pbState = 1;
+ bct->stateId = PBS_PRESSED;
+ }
+ else if (wParam == BST_UNCHECKED) {
+ bct->pbState = 0;
+ bct->stateId = PBS_NORMAL;
+ }
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+ case BM_GETCHECK:
+ if (bct->dwStyle & MBS_PUSHBUTTON) return bct->pbState ? BST_CHECKED : BST_UNCHECKED;
+ return 0;
+ case BUTTONSETDEFAULT:
+ bct->defbutton = wParam ? 1 : 0;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+ case BUTTONADDTOOLTIP:
+ {
+ if (!wParam) break;
+ EnterCriticalSection(&csTips);
+ if (!hwndToolTips) {
+ hwndToolTips = CreateWindowEx(WS_EX_TOPMOST, TOOLTIPS_CLASS, NULL, WS_POPUP, 0, 0, 0, 0, NULL, NULL, GetModuleHandle(NULL), NULL);
+ }
+
+ if (lParam == MBF_UNICODE) {
+ TOOLINFOW ti;
+
+ ZeroMemory(&ti, sizeof(TOOLINFOW));
+ ti.cbSize = sizeof(TOOLINFOW);
+ ti.uFlags = TTF_IDISHWND;
+ ti.hwnd = bct->hwnd;
+ ti.uId = (UINT)bct->hwnd;
+ if (SendMessage(hwndToolTips, TTM_GETTOOLINFOW, 0, (LPARAM)&ti)) {
+ SendMessage(hwndToolTips, TTM_DELTOOLW, 0, (LPARAM)&ti);
+ }
+ ti.uFlags = TTF_IDISHWND|TTF_SUBCLASS;
+ ti.uId = (UINT)bct->hwnd;
+ ti.lpszText=(LPWSTR)wParam;
+ SendMessage(hwndToolTips, TTM_ADDTOOLW, 0, (LPARAM)&ti);
+ }
+ else {
+ TOOLINFOA ti;
+
+ ZeroMemory(&ti, sizeof(TOOLINFOA));
+ ti.cbSize = sizeof(TOOLINFOA);
+ ti.uFlags = TTF_IDISHWND;
+ ti.hwnd = bct->hwnd;
+ ti.uId = (UINT)bct->hwnd;
+ if (SendMessage(hwndToolTips, TTM_GETTOOLINFOA, 0, (LPARAM)&ti)) {
+ SendMessage(hwndToolTips, TTM_DELTOOLA, 0, (LPARAM)&ti);
+ }
+ ti.uFlags = TTF_IDISHWND|TTF_SUBCLASS;
+ ti.uId = (UINT)bct->hwnd;
+ ti.lpszText=(LPSTR)wParam;
+ SendMessage(hwndToolTips, TTM_ADDTOOLA, 0, (LPARAM)&ti);
+ }
+ LeaveCriticalSection(&csTips);
+ break;
+ }
+ case BUTTONTRANSLATE:
+ {
+ TCHAR szButton[MAX_PATH];
+ GetWindowText(bct->hwnd, szButton, MAX_PATH);
+ SetWindowText(bct->hwnd, TranslateTS(szButton));
+ break;
+ }
+ case WM_SETFOCUS: // set keybord bFocus and redraw
+ bct->bFocus = 1;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+ case WM_KILLFOCUS: // kill bFocus and redraw
+ bct->bFocus = 0;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+ case WM_WINDOWPOSCHANGED:
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+ case WM_ENABLE: // windows tells us to enable/disable
+ bct->stateId = wParam ? PBS_NORMAL : PBS_DISABLED;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ break;
+ case WM_MOUSELEAVE: // faked by the WM_TIMER
+ if (bct->stateId != PBS_DISABLED) { // don't change states if disabled
+ bct->stateId = PBS_NORMAL;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+ case WM_LBUTTONDOWN:
+ if (bct->stateId != PBS_DISABLED) { // don't change states if disabled
+ bct->stateId = PBS_PRESSED;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+ case WM_LBUTTONUP:
+ if (bct->stateId != PBS_DISABLED) { // don't change states if disabled
+ BOOLEAN bPressed = bct->stateId == PBS_PRESSED;
+
+ if (bct->dwStyle & MBS_PUSHBUTTON) {
+ if (bct->pbState) bct->pbState = 0;
+ else bct->pbState = 1;
+ }
+ bct->stateId = PBS_HOT;
+
+ // Tell your daddy you got clicked, if mouse is still over the button.
+ if ((bct->dwStyle & MBS_PUSHBUTTON) || bPressed)
+ SendMessage(GetParent(hwndBtn), WM_COMMAND, MAKELONG(GetDlgCtrlID(hwndBtn), BN_CLICKED), (LPARAM)hwndBtn);
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ break;
+ case WM_MOUSEMOVE:
+ if (bct->stateId == PBS_NORMAL) {
+ bct->stateId = PBS_HOT;
+ InvalidateRect(bct->hwnd, NULL, TRUE);
+ }
+ // Call timer, used to start cheesy TrackMouseEvent faker
+ SetTimer(hwndBtn, BUTTON_POLLID, BUTTON_POLLDELAY, NULL);
+ break;
+ case WM_TIMER: // use a timer to check if they have did a mouseout
+ if (wParam == BUTTON_POLLID) {
+ RECT rc;
+ POINT pt;
+
+ GetWindowRect(hwndBtn, &rc);
+ GetCursorPos(&pt);
+ if (!PtInRect(&rc, pt)) { // mouse must be gone, trigger mouse leave
+ PostMessage(hwndBtn, WM_MOUSELEAVE, 0, 0L);
+ KillTimer(hwndBtn, BUTTON_POLLID);
+ }
+ }
+ break;
+ case WM_ERASEBKGND:
+ return 1;
+ }
+ return DefWindowProc(hwndBtn, uMsg, wParam, lParam);
+}
+
+VOID CtrlButtonUnloadModule()
+{
+ DeleteCriticalSection(&csTips);
+ UnregisterClass(UINFOBUTTONCLASS, hInst);
+}
+
+VOID CtrlButtonLoadModule()
+{
+ WNDCLASSEX wc;
+
+ ZeroMemory(&wc, sizeof(wc));
+ wc.cbSize = sizeof(wc);
+ wc.lpszClassName = UINFOBUTTONCLASS;
+ wc.lpfnWndProc = Button_WndProc;
+ wc.hCursor = LoadCursor(NULL, IDC_ARROW);
+ wc.cbWndExtra = sizeof(LPBTNCTRL);
+ wc.style = CS_GLOBALCLASS;
+ RegisterClassEx(&wc);
+ InitializeCriticalSection(&csTips);
+}
+
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