[PATCH 1/2] comctl32: Introduce ComboBox control
Nikolay Sivov
nsivov at codeweavers.com
Tue Feb 13 01:56:36 CST 2018
Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
---
dlls/comctl32/Makefile.in | 1 +
dlls/comctl32/combo.c | 2117 ++++++++++++++++++++++++++++++++++++++++++++
dlls/comctl32/comctl32.h | 1 +
dlls/comctl32/commctrl.c | 2 +
dlls/comctl32/tests/misc.c | 1 +
dlls/user32/class.c | 1 -
6 files changed, 2122 insertions(+), 1 deletion(-)
create mode 100644 dlls/comctl32/combo.c
diff --git a/dlls/comctl32/Makefile.in b/dlls/comctl32/Makefile.in
index 03dd808427..080f78c3fe 100644
--- a/dlls/comctl32/Makefile.in
+++ b/dlls/comctl32/Makefile.in
@@ -7,6 +7,7 @@ DELAYIMPORTS = winmm uxtheme
C_SRCS = \
animate.c \
button.c \
+ combo.c \
comboex.c \
comctl32undoc.c \
commctrl.c \
diff --git a/dlls/comctl32/combo.c b/dlls/comctl32/combo.c
new file mode 100644
index 0000000000..b478bfca6c
--- /dev/null
+++ b/dlls/comctl32/combo.c
@@ -0,0 +1,2117 @@
+/*
+ * Combo controls
+ *
+ * Copyright 1997 Alex Korobka
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ *
+ * TODO:
+ * - ComboBox_[GS]etMinVisible()
+ * - CB_GETMINVISIBLE, CB_SETMINVISIBLE
+ * - CB_SETTOPINDEX
+ */
+
+#include <stdarg.h>
+#include <string.h>
+
+#define OEMRESOURCE
+
+#include "windef.h"
+#include "winbase.h"
+#include "wingdi.h"
+#include "winuser.h"
+#include "commctrl.h"
+#include "wine/unicode.h"
+#include "wine/debug.h"
+
+#include "comctl32.h"
+
+WINE_DEFAULT_DEBUG_CHANNEL(combo);
+
+ /* bits in the dwKeyData */
+#define KEYDATA_ALT 0x2000
+#define KEYDATA_PREVSTATE 0x4000
+
+/*
+ * Additional combo box definitions
+ */
+
+#define CB_NOTIFY( lphc, code ) \
+ (SendMessageW((lphc)->owner, WM_COMMAND, \
+ MAKEWPARAM(GetWindowLongPtrW((lphc)->self,GWLP_ID), (code)), (LPARAM)(lphc)->self))
+
+#define CB_DISABLED( lphc ) (!IsWindowEnabled((lphc)->self))
+#define CB_OWNERDRAWN( lphc ) ((lphc)->dwStyle & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE))
+#define CB_HASSTRINGS( lphc ) ((lphc)->dwStyle & CBS_HASSTRINGS)
+#define CB_HWND( lphc ) ((lphc)->self)
+#define CB_GETTYPE( lphc ) ((lphc)->dwStyle & (CBS_DROPDOWNLIST))
+
+#define ISWIN31 (LOWORD(GetVersion()) == 0x0a03)
+
+/*
+ * Drawing globals
+ */
+static HBITMAP hComboBmp = 0;
+static UINT CBitHeight, CBitWidth;
+
+/*
+ * Look and feel dependent "constants"
+ */
+
+#define COMBO_YBORDERGAP 5
+#define COMBO_XBORDERSIZE() 2
+#define COMBO_YBORDERSIZE() 2
+#define COMBO_EDITBUTTONSPACE() 0
+#define EDIT_CONTROL_PADDING() 1
+
+#define CBF_DROPPED 0x0001
+#define CBF_BUTTONDOWN 0x0002
+#define CBF_NOROLLUP 0x0004
+#define CBF_MEASUREITEM 0x0008
+#define CBF_FOCUSED 0x0010
+#define CBF_CAPTURE 0x0020
+#define CBF_EDIT 0x0040
+#define CBF_NORESIZE 0x0080
+#define CBF_NOTIFY 0x0100
+#define CBF_NOREDRAW 0x0200
+#define CBF_SELCHANGE 0x0400
+#define CBF_NOEDITNOTIFY 0x1000
+#define CBF_NOLBSELECT 0x2000 /* do not change current selection */
+#define CBF_BEENFOCUSED 0x4000 /* has it ever had focus */
+#define CBF_EUI 0x8000
+
+#define ID_CB_LISTBOX 1000
+#define ID_CB_EDIT 1001
+
+typedef struct
+{
+ HWND self;
+ HWND owner;
+ UINT dwStyle;
+ HWND hWndEdit;
+ HWND hWndLBox;
+ UINT wState;
+ HFONT hFont;
+ RECT textRect;
+ RECT buttonRect;
+ RECT droppedRect;
+ INT droppedIndex;
+ INT fixedOwnerDrawHeight;
+ INT droppedWidth; /* last two are not used unless set */
+ INT editHeight; /* explicitly */
+} HEADCOMBO, *LPHEADCOMBO;
+
+/***********************************************************************
+ * COMBO_Init
+ *
+ * Load combo button bitmap.
+ */
+static BOOL COMBO_Init(void)
+{
+ HDC hDC;
+
+ if( hComboBmp ) return TRUE;
+ if( (hDC = CreateCompatibleDC(0)) )
+ {
+ BOOL bRet = FALSE;
+ if( (hComboBmp = LoadBitmapW(0, MAKEINTRESOURCEW(OBM_COMBO))) )
+ {
+ BITMAP bm;
+ HBITMAP hPrevB;
+ RECT r;
+
+ GetObjectW( hComboBmp, sizeof(bm), &bm );
+ CBitHeight = bm.bmHeight;
+ CBitWidth = bm.bmWidth;
+
+ TRACE("combo bitmap [%i,%i]\n", CBitWidth, CBitHeight );
+
+ hPrevB = SelectObject( hDC, hComboBmp);
+ SetRect( &r, 0, 0, CBitWidth, CBitHeight );
+ InvertRect( hDC, &r );
+ SelectObject( hDC, hPrevB );
+ bRet = TRUE;
+ }
+ DeleteDC( hDC );
+ return bRet;
+ }
+ return FALSE;
+}
+
+/***********************************************************************
+ * COMBO_NCCreate
+ */
+static LRESULT COMBO_NCCreate(HWND hwnd, LONG style)
+{
+ LPHEADCOMBO lphc;
+
+ if (COMBO_Init() && (lphc = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(HEADCOMBO))) )
+ {
+ lphc->self = hwnd;
+ SetWindowLongPtrW( hwnd, 0, (LONG_PTR)lphc );
+
+ /* some braindead apps do try to use scrollbar/border flags */
+
+ lphc->dwStyle = style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL);
+ SetWindowLongW( hwnd, GWL_STYLE, style & ~(WS_BORDER | WS_HSCROLL | WS_VSCROLL) );
+
+ /*
+ * We also have to remove the client edge style to make sure
+ * we don't end-up with a non client area.
+ */
+ SetWindowLongW( hwnd, GWL_EXSTYLE,
+ GetWindowLongW( hwnd, GWL_EXSTYLE ) & ~WS_EX_CLIENTEDGE );
+
+ if( !(style & (CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE)) )
+ lphc->dwStyle |= CBS_HASSTRINGS;
+ if( !(GetWindowLongW( hwnd, GWL_EXSTYLE ) & WS_EX_NOPARENTNOTIFY) )
+ lphc->wState |= CBF_NOTIFY;
+
+ TRACE("[%p], style = %08x\n", lphc, lphc->dwStyle );
+ return TRUE;
+ }
+ return FALSE;
+}
+
+/***********************************************************************
+ * COMBO_NCDestroy
+ */
+static LRESULT COMBO_NCDestroy( LPHEADCOMBO lphc )
+{
+
+ if( lphc )
+ {
+ TRACE("[%p]: freeing storage\n", lphc->self);
+
+ if( (CB_GETTYPE(lphc) != CBS_SIMPLE) && lphc->hWndLBox )
+ DestroyWindow( lphc->hWndLBox );
+
+ SetWindowLongPtrW( lphc->self, 0, 0 );
+ HeapFree( GetProcessHeap(), 0, lphc );
+ }
+ return 0;
+}
+
+/***********************************************************************
+ * CBGetTextAreaHeight
+ *
+ * This method will calculate the height of the text area of the
+ * combobox.
+ * The height of the text area is set in two ways.
+ * It can be set explicitly through a combobox message or through a
+ * WM_MEASUREITEM callback.
+ * If this is not the case, the height is set to font height + 4px
+ * This height was determined through experimentation.
+ * CBCalcPlacement will add 2*COMBO_YBORDERSIZE pixels for the border
+ */
+static INT CBGetTextAreaHeight(
+ HWND hwnd,
+ LPHEADCOMBO lphc)
+{
+ INT iTextItemHeight;
+
+ if( lphc->editHeight ) /* explicitly set height */
+ {
+ iTextItemHeight = lphc->editHeight;
+ }
+ else
+ {
+ TEXTMETRICW tm;
+ HDC hDC = GetDC(hwnd);
+ HFONT hPrevFont = 0;
+ INT baseUnitY;
+
+ if (lphc->hFont)
+ hPrevFont = SelectObject( hDC, lphc->hFont );
+
+ GetTextMetricsW(hDC, &tm);
+
+ baseUnitY = tm.tmHeight;
+
+ if( hPrevFont )
+ SelectObject( hDC, hPrevFont );
+
+ ReleaseDC(hwnd, hDC);
+
+ iTextItemHeight = baseUnitY + 4;
+ }
+
+ /*
+ * Check the ownerdraw case if we haven't asked the parent the size
+ * of the item yet.
+ */
+ if ( CB_OWNERDRAWN(lphc) &&
+ (lphc->wState & CBF_MEASUREITEM) )
+ {
+ MEASUREITEMSTRUCT measureItem;
+ RECT clientRect;
+ INT originalItemHeight = iTextItemHeight;
+ UINT id = (UINT)GetWindowLongPtrW( lphc->self, GWLP_ID );
+
+ /*
+ * We use the client rect for the width of the item.
+ */
+ GetClientRect(hwnd, &clientRect);
+
+ lphc->wState &= ~CBF_MEASUREITEM;
+
+ /*
+ * Send a first one to measure the size of the text area
+ */
+ measureItem.CtlType = ODT_COMBOBOX;
+ measureItem.CtlID = id;
+ measureItem.itemID = -1;
+ measureItem.itemWidth = clientRect.right;
+ measureItem.itemHeight = iTextItemHeight - 6; /* ownerdrawn cb is taller */
+ measureItem.itemData = 0;
+ SendMessageW(lphc->owner, WM_MEASUREITEM, id, (LPARAM)&measureItem);
+ iTextItemHeight = 6 + measureItem.itemHeight;
+
+ /*
+ * Send a second one in the case of a fixed ownerdraw list to calculate the
+ * size of the list items. (we basically do this on behalf of the listbox)
+ */
+ if (lphc->dwStyle & CBS_OWNERDRAWFIXED)
+ {
+ measureItem.CtlType = ODT_COMBOBOX;
+ measureItem.CtlID = id;
+ measureItem.itemID = 0;
+ measureItem.itemWidth = clientRect.right;
+ measureItem.itemHeight = originalItemHeight;
+ measureItem.itemData = 0;
+ SendMessageW(lphc->owner, WM_MEASUREITEM, id, (LPARAM)&measureItem);
+ lphc->fixedOwnerDrawHeight = measureItem.itemHeight;
+ }
+
+ /*
+ * Keep the size for the next time
+ */
+ lphc->editHeight = iTextItemHeight;
+ }
+
+ return iTextItemHeight;
+}
+
+/***********************************************************************
+ * CBForceDummyResize
+ *
+ * The dummy resize is used for listboxes that have a popup to trigger
+ * a re-arranging of the contents of the combobox and the recalculation
+ * of the size of the "real" control window.
+ */
+static void CBForceDummyResize(
+ LPHEADCOMBO lphc)
+{
+ RECT windowRect;
+ int newComboHeight;
+
+ newComboHeight = CBGetTextAreaHeight(lphc->self,lphc) + 2*COMBO_YBORDERSIZE();
+
+ GetWindowRect(lphc->self, &windowRect);
+
+ /*
+ * We have to be careful, resizing a combobox also has the meaning that the
+ * dropped rect will be resized. In this case, we want to trigger a resize
+ * to recalculate layout but we don't want to change the dropped rectangle
+ * So, we pass the height of text area of control as the height.
+ * this will cancel-out in the processing of the WM_WINDOWPOSCHANGING
+ * message.
+ */
+ SetWindowPos( lphc->self,
+ NULL,
+ 0, 0,
+ windowRect.right - windowRect.left,
+ newComboHeight,
+ SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE );
+}
+
+/***********************************************************************
+ * CBCalcPlacement
+ *
+ * Set up component coordinates given valid lphc->RectCombo.
+ */
+static void CBCalcPlacement(
+ HWND hwnd,
+ LPHEADCOMBO lphc,
+ LPRECT lprEdit,
+ LPRECT lprButton,
+ LPRECT lprLB)
+{
+ /*
+ * Again, start with the client rectangle.
+ */
+ GetClientRect(hwnd, lprEdit);
+
+ /*
+ * Remove the borders
+ */
+ InflateRect(lprEdit, -COMBO_XBORDERSIZE(), -COMBO_YBORDERSIZE());
+
+ /*
+ * Chop off the bottom part to fit with the height of the text area.
+ */
+ lprEdit->bottom = lprEdit->top + CBGetTextAreaHeight(hwnd, lphc);
+
+ /*
+ * The button starts the same vertical position as the text area.
+ */
+ CopyRect(lprButton, lprEdit);
+
+ /*
+ * If the combobox is "simple" there is no button.
+ */
+ if( CB_GETTYPE(lphc) == CBS_SIMPLE )
+ lprButton->left = lprButton->right = lprButton->bottom = 0;
+ else
+ {
+ /*
+ * Let's assume the combobox button is the same width as the
+ * scrollbar button.
+ * size the button horizontally and cut-off the text area.
+ */
+ lprButton->left = lprButton->right - GetSystemMetrics(SM_CXVSCROLL);
+ lprEdit->right = lprButton->left;
+ }
+
+ /*
+ * In the case of a dropdown, there is an additional spacing between the
+ * text area and the button.
+ */
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
+ {
+ lprEdit->right -= COMBO_EDITBUTTONSPACE();
+ }
+
+ /*
+ * If we have an edit control, we space it away from the borders slightly.
+ */
+ if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
+ {
+ InflateRect(lprEdit, -EDIT_CONTROL_PADDING(), -EDIT_CONTROL_PADDING());
+ }
+
+ /*
+ * Adjust the size of the listbox popup.
+ */
+ if( CB_GETTYPE(lphc) == CBS_SIMPLE )
+ {
+ /*
+ * Use the client rectangle to initialize the listbox rectangle
+ */
+ GetClientRect(hwnd, lprLB);
+
+ /*
+ * Then, chop-off the top part.
+ */
+ lprLB->top = lprEdit->bottom + COMBO_YBORDERSIZE();
+ }
+ else
+ {
+ /*
+ * Make sure the dropped width is as large as the combobox itself.
+ */
+ if (lphc->droppedWidth < (lprButton->right + COMBO_XBORDERSIZE()))
+ {
+ lprLB->right = lprLB->left + (lprButton->right + COMBO_XBORDERSIZE());
+
+ /*
+ * In the case of a dropdown, the popup listbox is offset to the right.
+ * so, we want to make sure it's flush with the right side of the
+ * combobox
+ */
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
+ lprLB->right -= COMBO_EDITBUTTONSPACE();
+ }
+ else
+ lprLB->right = lprLB->left + lphc->droppedWidth;
+ }
+
+ /* don't allow negative window width */
+ if (lprEdit->right < lprEdit->left)
+ lprEdit->right = lprEdit->left;
+
+ TRACE("\ttext\t= (%s)\n", wine_dbgstr_rect(lprEdit));
+
+ TRACE("\tbutton\t= (%s)\n", wine_dbgstr_rect(lprButton));
+
+ TRACE("\tlbox\t= (%s)\n", wine_dbgstr_rect(lprLB));
+}
+
+/***********************************************************************
+ * CBGetDroppedControlRect
+ */
+static void CBGetDroppedControlRect( LPHEADCOMBO lphc, LPRECT lpRect)
+{
+ /* In windows, CB_GETDROPPEDCONTROLRECT returns the upper left corner
+ of the combo box and the lower right corner of the listbox */
+
+ GetWindowRect(lphc->self, lpRect);
+
+ lpRect->right = lpRect->left + lphc->droppedRect.right - lphc->droppedRect.left;
+ lpRect->bottom = lpRect->top + lphc->droppedRect.bottom - lphc->droppedRect.top;
+
+}
+
+/***********************************************************************
+ * COMBO_Create
+ */
+static LRESULT COMBO_Create( HWND hwnd, LPHEADCOMBO lphc, HWND hwndParent, LONG style )
+{
+ static const WCHAR clbName[] = {'C','o','m','b','o','L','B','o','x',0};
+ static const WCHAR editName[] = {'E','d','i','t',0};
+
+ if( !CB_GETTYPE(lphc) ) lphc->dwStyle |= CBS_SIMPLE;
+ if( CB_GETTYPE(lphc) != CBS_DROPDOWNLIST ) lphc->wState |= CBF_EDIT;
+
+ lphc->owner = hwndParent;
+
+ /*
+ * The item height and dropped width are not set when the control
+ * is created.
+ */
+ lphc->droppedWidth = lphc->editHeight = 0;
+
+ /*
+ * The first time we go through, we want to measure the ownerdraw item
+ */
+ lphc->wState |= CBF_MEASUREITEM;
+
+ /* M$ IE 3.01 actually creates (and rapidly destroys) an ownerless combobox */
+
+ if( lphc->owner || !(style & WS_VISIBLE) )
+ {
+ UINT lbeStyle = 0;
+ UINT lbeExStyle = 0;
+
+ /*
+ * Initialize the dropped rect to the size of the client area of the
+ * control and then, force all the areas of the combobox to be
+ * recalculated.
+ */
+ GetClientRect( hwnd, &lphc->droppedRect );
+ CBCalcPlacement(hwnd, lphc, &lphc->textRect, &lphc->buttonRect, &lphc->droppedRect );
+
+ /*
+ * Adjust the position of the popup listbox if it's necessary
+ */
+ if ( CB_GETTYPE(lphc) != CBS_SIMPLE )
+ {
+ lphc->droppedRect.top = lphc->textRect.bottom + COMBO_YBORDERSIZE();
+
+ /*
+ * If it's a dropdown, the listbox is offset
+ */
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
+ lphc->droppedRect.left += COMBO_EDITBUTTONSPACE();
+
+ if (lphc->droppedRect.bottom < lphc->droppedRect.top)
+ lphc->droppedRect.bottom = lphc->droppedRect.top;
+ if (lphc->droppedRect.right < lphc->droppedRect.left)
+ lphc->droppedRect.right = lphc->droppedRect.left;
+ MapWindowPoints( hwnd, 0, (LPPOINT)&lphc->droppedRect, 2 );
+ }
+
+ /* create listbox popup */
+
+ lbeStyle = (LBS_NOTIFY | LBS_COMBOBOX | WS_BORDER | WS_CLIPSIBLINGS | WS_CHILD) |
+ (style & (WS_VSCROLL | CBS_OWNERDRAWFIXED | CBS_OWNERDRAWVARIABLE));
+
+ if( lphc->dwStyle & CBS_SORT )
+ lbeStyle |= LBS_SORT;
+ if( lphc->dwStyle & CBS_HASSTRINGS )
+ lbeStyle |= LBS_HASSTRINGS;
+ if( lphc->dwStyle & CBS_NOINTEGRALHEIGHT )
+ lbeStyle |= LBS_NOINTEGRALHEIGHT;
+ if( lphc->dwStyle & CBS_DISABLENOSCROLL )
+ lbeStyle |= LBS_DISABLENOSCROLL;
+
+ if( CB_GETTYPE(lphc) == CBS_SIMPLE ) /* child listbox */
+ {
+ lbeStyle |= WS_VISIBLE;
+
+ /*
+ * In win 95 look n feel, the listbox in the simple combobox has
+ * the WS_EXCLIENTEDGE style instead of the WS_BORDER style.
+ */
+ lbeStyle &= ~WS_BORDER;
+ lbeExStyle |= WS_EX_CLIENTEDGE;
+ }
+ else
+ {
+ lbeExStyle |= (WS_EX_TOPMOST | WS_EX_TOOLWINDOW);
+ }
+
+ lphc->hWndLBox = CreateWindowExW(lbeExStyle, clbName, NULL, lbeStyle,
+ lphc->droppedRect.left, lphc->droppedRect.top, lphc->droppedRect.right - lphc->droppedRect.left,
+ lphc->droppedRect.bottom - lphc->droppedRect.top, hwnd, (HMENU)ID_CB_LISTBOX,
+ (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), lphc );
+ if( lphc->hWndLBox )
+ {
+ BOOL bEdit = TRUE;
+ lbeStyle = WS_CHILD | WS_VISIBLE | ES_NOHIDESEL | ES_LEFT | ES_COMBO;
+
+ if( lphc->wState & CBF_EDIT )
+ {
+ if( lphc->dwStyle & CBS_OEMCONVERT )
+ lbeStyle |= ES_OEMCONVERT;
+ if( lphc->dwStyle & CBS_AUTOHSCROLL )
+ lbeStyle |= ES_AUTOHSCROLL;
+ if( lphc->dwStyle & CBS_LOWERCASE )
+ lbeStyle |= ES_LOWERCASE;
+ else if( lphc->dwStyle & CBS_UPPERCASE )
+ lbeStyle |= ES_UPPERCASE;
+
+ if (!IsWindowEnabled(hwnd)) lbeStyle |= WS_DISABLED;
+
+ lphc->hWndEdit = CreateWindowExW(0, editName, NULL, lbeStyle,
+ lphc->textRect.left, lphc->textRect.top,
+ lphc->textRect.right - lphc->textRect.left,
+ lphc->textRect.bottom - lphc->textRect.top,
+ hwnd, (HMENU)ID_CB_EDIT,
+ (HINSTANCE)GetWindowLongPtrW( hwnd, GWLP_HINSTANCE ), NULL );
+ if( !lphc->hWndEdit )
+ bEdit = FALSE;
+ }
+
+ if( bEdit )
+ {
+ if( CB_GETTYPE(lphc) != CBS_SIMPLE )
+ {
+ /* Now do the trick with parent */
+ SetParent(lphc->hWndLBox, HWND_DESKTOP);
+ /*
+ * If the combo is a dropdown, we must resize the control
+ * to fit only the text area and button. To do this,
+ * we send a dummy resize and the WM_WINDOWPOSCHANGING message
+ * will take care of setting the height for us.
+ */
+ CBForceDummyResize(lphc);
+ }
+
+ TRACE("init done\n");
+ return 0;
+ }
+ ERR("edit control failure.\n");
+ } else ERR("listbox failure.\n");
+ } else ERR("no owner for visible combo.\n");
+
+ /* CreateWindow() will send WM_NCDESTROY to cleanup */
+
+ return -1;
+}
+
+/***********************************************************************
+ * CBPaintButton
+ *
+ * Paint combo button (normal, pressed, and disabled states).
+ */
+static void CBPaintButton( LPHEADCOMBO lphc, HDC hdc, RECT rectButton)
+{
+ UINT buttonState = DFCS_SCROLLCOMBOBOX;
+
+ if( lphc->wState & CBF_NOREDRAW )
+ return;
+
+
+ if (lphc->wState & CBF_BUTTONDOWN)
+ buttonState |= DFCS_PUSHED;
+
+ if (CB_DISABLED(lphc))
+ buttonState |= DFCS_INACTIVE;
+
+ DrawFrameControl(hdc, &rectButton, DFC_SCROLL, buttonState);
+}
+
+/***********************************************************************
+ * COMBO_PrepareColors
+ *
+ * This method will sent the appropriate WM_CTLCOLOR message to
+ * prepare and setup the colors for the combo's DC.
+ *
+ * It also returns the brush to use for the background.
+ */
+static HBRUSH COMBO_PrepareColors(
+ LPHEADCOMBO lphc,
+ HDC hDC)
+{
+ HBRUSH hBkgBrush;
+
+ /*
+ * Get the background brush for this control.
+ */
+ if (CB_DISABLED(lphc))
+ {
+ hBkgBrush = (HBRUSH)SendMessageW(lphc->owner, WM_CTLCOLORSTATIC,
+ (WPARAM)hDC, (LPARAM)lphc->self );
+
+ /*
+ * We have to change the text color since WM_CTLCOLORSTATIC will
+ * set it to the "enabled" color. This is the same behavior as the
+ * edit control
+ */
+ SetTextColor(hDC, GetSysColor(COLOR_GRAYTEXT));
+ }
+ else
+ {
+ /* FIXME: In which cases WM_CTLCOLORLISTBOX should be sent? */
+ hBkgBrush = (HBRUSH)SendMessageW(lphc->owner, WM_CTLCOLOREDIT,
+ (WPARAM)hDC, (LPARAM)lphc->self );
+ }
+
+ /*
+ * Catch errors.
+ */
+ if( !hBkgBrush )
+ hBkgBrush = GetSysColorBrush(COLOR_WINDOW);
+
+ return hBkgBrush;
+}
+
+/***********************************************************************
+ * CBPaintText
+ *
+ * Paint CBS_DROPDOWNLIST text field / update edit control contents.
+ */
+static void CBPaintText(
+ LPHEADCOMBO lphc,
+ HDC hdc_paint)
+{
+ RECT rectEdit = lphc->textRect;
+ INT id, size = 0;
+ LPWSTR pText = NULL;
+
+ TRACE("\n");
+
+ /* follow Windows combobox that sends a bunch of text
+ * inquiries to its listbox while processing WM_PAINT. */
+
+ if( (id = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0) ) != LB_ERR )
+ {
+ size = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, id, 0);
+ if (size == LB_ERR)
+ FIXME("LB_ERR probably not handled yet\n");
+ if( (pText = HeapAlloc( GetProcessHeap(), 0, (size + 1) * sizeof(WCHAR))) )
+ {
+ /* size from LB_GETTEXTLEN may be too large, from LB_GETTEXT is accurate */
+ size=SendMessageW(lphc->hWndLBox, LB_GETTEXT, id, (LPARAM)pText);
+ pText[size] = '\0'; /* just in case */
+ } else return;
+ }
+
+ if( lphc->wState & CBF_EDIT )
+ {
+ static const WCHAR empty_stringW[] = { 0 };
+ if( CB_HASSTRINGS(lphc) ) SetWindowTextW( lphc->hWndEdit, pText ? pText : empty_stringW );
+ if( lphc->wState & CBF_FOCUSED )
+ SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, MAXLONG);
+ }
+ else if(!(lphc->wState & CBF_NOREDRAW) && IsWindowVisible( lphc->self ))
+ {
+ /* paint text field ourselves */
+ HDC hdc = hdc_paint ? hdc_paint : GetDC(lphc->self);
+ UINT itemState = ODS_COMBOBOXEDIT;
+ HFONT hPrevFont = (lphc->hFont) ? SelectObject(hdc, lphc->hFont) : 0;
+ HBRUSH hPrevBrush, hBkgBrush;
+
+ /*
+ * Give ourselves some space.
+ */
+ InflateRect( &rectEdit, -1, -1 );
+
+ hBkgBrush = COMBO_PrepareColors( lphc, hdc );
+ hPrevBrush = SelectObject( hdc, hBkgBrush );
+ FillRect( hdc, &rectEdit, hBkgBrush );
+
+ if( CB_OWNERDRAWN(lphc) )
+ {
+ DRAWITEMSTRUCT dis;
+ HRGN clipRegion;
+ UINT ctlid = (UINT)GetWindowLongPtrW( lphc->self, GWLP_ID );
+
+ /* setup state for DRAWITEM message. Owner will highlight */
+ if ( (lphc->wState & CBF_FOCUSED) &&
+ !(lphc->wState & CBF_DROPPED) )
+ itemState |= ODS_SELECTED | ODS_FOCUS;
+
+ if (!IsWindowEnabled(lphc->self)) itemState |= ODS_DISABLED;
+
+ dis.CtlType = ODT_COMBOBOX;
+ dis.CtlID = ctlid;
+ dis.hwndItem = lphc->self;
+ dis.itemAction = ODA_DRAWENTIRE;
+ dis.itemID = id;
+ dis.itemState = itemState;
+ dis.hDC = hdc;
+ dis.rcItem = rectEdit;
+ dis.itemData = SendMessageW(lphc->hWndLBox, LB_GETITEMDATA, id, 0);
+
+ /*
+ * Clip the DC and have the parent draw the item.
+ */
+ clipRegion = set_control_clipping( hdc, &rectEdit );
+
+ SendMessageW(lphc->owner, WM_DRAWITEM, ctlid, (LPARAM)&dis );
+
+ SelectClipRgn( hdc, clipRegion );
+ if (clipRegion) DeleteObject( clipRegion );
+ }
+ else
+ {
+ static const WCHAR empty_stringW[] = { 0 };
+
+ if ( (lphc->wState & CBF_FOCUSED) &&
+ !(lphc->wState & CBF_DROPPED) ) {
+
+ /* highlight */
+ FillRect( hdc, &rectEdit, GetSysColorBrush(COLOR_HIGHLIGHT) );
+ SetBkColor( hdc, GetSysColor( COLOR_HIGHLIGHT ) );
+ SetTextColor( hdc, GetSysColor( COLOR_HIGHLIGHTTEXT ) );
+ }
+
+ ExtTextOutW( hdc,
+ rectEdit.left + 1,
+ rectEdit.top + 1,
+ ETO_OPAQUE | ETO_CLIPPED,
+ &rectEdit,
+ pText ? pText : empty_stringW , size, NULL );
+
+ if(lphc->wState & CBF_FOCUSED && !(lphc->wState & CBF_DROPPED))
+ DrawFocusRect( hdc, &rectEdit );
+ }
+
+ if( hPrevFont )
+ SelectObject(hdc, hPrevFont );
+
+ if( hPrevBrush )
+ SelectObject( hdc, hPrevBrush );
+
+ if( !hdc_paint )
+ ReleaseDC( lphc->self, hdc );
+ }
+ HeapFree( GetProcessHeap(), 0, pText );
+}
+
+/***********************************************************************
+ * CBPaintBorder
+ */
+static void CBPaintBorder(
+ HWND hwnd,
+ const HEADCOMBO *lphc,
+ HDC hdc)
+{
+ RECT clientRect;
+
+ if (CB_GETTYPE(lphc) != CBS_SIMPLE)
+ {
+ GetClientRect(hwnd, &clientRect);
+ }
+ else
+ {
+ clientRect = lphc->textRect;
+
+ InflateRect(&clientRect, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
+ InflateRect(&clientRect, COMBO_XBORDERSIZE(), COMBO_YBORDERSIZE());
+ }
+
+ DrawEdge(hdc, &clientRect, EDGE_SUNKEN, BF_RECT);
+}
+
+/***********************************************************************
+ * COMBO_Paint
+ */
+static LRESULT COMBO_Paint(LPHEADCOMBO lphc, HDC hParamDC)
+{
+ PAINTSTRUCT ps;
+ HDC hDC;
+
+ hDC = (hParamDC) ? hParamDC
+ : BeginPaint( lphc->self, &ps);
+
+ TRACE("hdc=%p\n", hDC);
+
+ if( hDC && !(lphc->wState & CBF_NOREDRAW) )
+ {
+ HBRUSH hPrevBrush, hBkgBrush;
+
+ /*
+ * Retrieve the background brush and select it in the
+ * DC.
+ */
+ hBkgBrush = COMBO_PrepareColors(lphc, hDC);
+
+ hPrevBrush = SelectObject( hDC, hBkgBrush );
+ if (!(lphc->wState & CBF_EDIT))
+ FillRect(hDC, &lphc->textRect, hBkgBrush);
+
+ /*
+ * In non 3.1 look, there is a sunken border on the combobox
+ */
+ CBPaintBorder(lphc->self, lphc, hDC);
+
+ if( !IsRectEmpty(&lphc->buttonRect) )
+ {
+ CBPaintButton(lphc, hDC, lphc->buttonRect);
+ }
+
+ /* paint the edit control padding area */
+ if (CB_GETTYPE(lphc) != CBS_DROPDOWNLIST)
+ {
+ RECT rPadEdit = lphc->textRect;
+
+ InflateRect(&rPadEdit, EDIT_CONTROL_PADDING(), EDIT_CONTROL_PADDING());
+
+ FrameRect( hDC, &rPadEdit, GetSysColorBrush(COLOR_WINDOW) );
+ }
+
+ if( !(lphc->wState & CBF_EDIT) )
+ CBPaintText( lphc, hDC );
+
+ if( hPrevBrush )
+ SelectObject( hDC, hPrevBrush );
+ }
+
+ if( !hParamDC )
+ EndPaint(lphc->self, &ps);
+
+ return 0;
+}
+
+/***********************************************************************
+ * CBUpdateLBox
+ *
+ * Select listbox entry according to the contents of the edit control.
+ */
+static INT CBUpdateLBox( LPHEADCOMBO lphc, BOOL bSelect )
+{
+ INT length, idx;
+ LPWSTR pText = NULL;
+
+ idx = LB_ERR;
+ length = SendMessageW( lphc->hWndEdit, WM_GETTEXTLENGTH, 0, 0 );
+
+ if( length > 0 )
+ pText = HeapAlloc( GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR));
+
+ TRACE("\t edit text length %i\n", length );
+
+ if( pText )
+ {
+ GetWindowTextW( lphc->hWndEdit, pText, length + 1);
+ idx = SendMessageW(lphc->hWndLBox, LB_FINDSTRING, -1, (LPARAM)pText);
+ HeapFree( GetProcessHeap(), 0, pText );
+ }
+
+ SendMessageW(lphc->hWndLBox, LB_SETCURSEL, bSelect ? idx : -1, 0);
+
+ /* probably superfluous but Windows sends this too */
+ SendMessageW(lphc->hWndLBox, LB_SETCARETINDEX, idx < 0 ? 0 : idx, 0);
+ SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX, idx < 0 ? 0 : idx, 0);
+
+ return idx;
+}
+
+/***********************************************************************
+ * CBUpdateEdit
+ *
+ * Copy a listbox entry to the edit control.
+ */
+static void CBUpdateEdit( LPHEADCOMBO lphc , INT index )
+{
+ INT length;
+ LPWSTR pText = NULL;
+ static const WCHAR empty_stringW[] = { 0 };
+
+ TRACE("\t %i\n", index );
+
+ if( index >= 0 ) /* got an entry */
+ {
+ length = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, index, 0);
+ if( length != LB_ERR)
+ {
+ if( (pText = HeapAlloc( GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR))) )
+ {
+ SendMessageW(lphc->hWndLBox, LB_GETTEXT, index, (LPARAM)pText);
+ }
+ }
+ }
+
+ if( CB_HASSTRINGS(lphc) )
+ {
+ lphc->wState |= (CBF_NOEDITNOTIFY | CBF_NOLBSELECT);
+ SendMessageW(lphc->hWndEdit, WM_SETTEXT, 0, pText ? (LPARAM)pText : (LPARAM)empty_stringW);
+ lphc->wState &= ~(CBF_NOEDITNOTIFY | CBF_NOLBSELECT);
+ }
+
+ if( lphc->wState & CBF_FOCUSED )
+ SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, -1);
+
+ HeapFree( GetProcessHeap(), 0, pText );
+}
+
+/***********************************************************************
+ * CBDropDown
+ *
+ * Show listbox popup.
+ */
+static void CBDropDown( LPHEADCOMBO lphc )
+{
+ HMONITOR monitor;
+ MONITORINFO mon_info;
+ RECT rect,r;
+ int nItems;
+ int nDroppedHeight;
+
+ TRACE("[%p]: drop down\n", lphc->self);
+
+ CB_NOTIFY( lphc, CBN_DROPDOWN );
+
+ /* set selection */
+
+ lphc->wState |= CBF_DROPPED;
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
+ {
+ lphc->droppedIndex = CBUpdateLBox( lphc, TRUE );
+
+ /* Update edit only if item is in the list */
+ if( !(lphc->wState & CBF_CAPTURE) && lphc->droppedIndex >= 0)
+ CBUpdateEdit( lphc, lphc->droppedIndex );
+ }
+ else
+ {
+ lphc->droppedIndex = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
+
+ SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX,
+ lphc->droppedIndex == LB_ERR ? 0 : lphc->droppedIndex, 0);
+ SendMessageW(lphc->hWndLBox, LB_CARETON, 0, 0);
+ }
+
+ /* now set popup position */
+ GetWindowRect( lphc->self, &rect );
+
+ /*
+ * If it's a dropdown, the listbox is offset
+ */
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
+ rect.left += COMBO_EDITBUTTONSPACE();
+
+ /* if the dropped height is greater than the total height of the dropped
+ items list, then force the drop down list height to be the total height
+ of the items in the dropped list */
+
+ /* And Remove any extra space (Best Fit) */
+ nDroppedHeight = lphc->droppedRect.bottom - lphc->droppedRect.top;
+ /* if listbox length has been set directly by its handle */
+ GetWindowRect(lphc->hWndLBox, &r);
+ if (nDroppedHeight < r.bottom - r.top)
+ nDroppedHeight = r.bottom - r.top;
+ nItems = (int)SendMessageW(lphc->hWndLBox, LB_GETCOUNT, 0, 0);
+
+ if (nItems > 0)
+ {
+ int nHeight;
+ int nIHeight;
+
+ nIHeight = (int)SendMessageW(lphc->hWndLBox, LB_GETITEMHEIGHT, 0, 0);
+
+ nHeight = nIHeight*nItems;
+
+ if (nHeight < nDroppedHeight - COMBO_YBORDERSIZE())
+ nDroppedHeight = nHeight + COMBO_YBORDERSIZE();
+
+ if (nDroppedHeight < nHeight)
+ {
+ if (nItems < 5)
+ nDroppedHeight = (nItems+1)*nIHeight;
+ else if (nDroppedHeight < 6*nIHeight)
+ nDroppedHeight = 6*nIHeight;
+ }
+ }
+
+ r.left = rect.left;
+ r.top = rect.bottom;
+ r.right = r.left + lphc->droppedRect.right - lphc->droppedRect.left;
+ r.bottom = r.top + nDroppedHeight;
+
+ /*If height of dropped rectangle gets beyond a screen size it should go up, otherwise down.*/
+ monitor = MonitorFromRect( &rect, MONITOR_DEFAULTTOPRIMARY );
+ mon_info.cbSize = sizeof(mon_info);
+ GetMonitorInfoW( monitor, &mon_info );
+
+ if (r.bottom > mon_info.rcWork.bottom)
+ {
+ r.top = max( rect.top - nDroppedHeight, mon_info.rcWork.top );
+ r.bottom = min( r.top + nDroppedHeight, mon_info.rcWork.bottom );
+ }
+
+ SetWindowPos( lphc->hWndLBox, HWND_TOPMOST, r.left, r.top, r.right - r.left, r.bottom - r.top,
+ SWP_NOACTIVATE | SWP_SHOWWINDOW );
+
+
+ if( !(lphc->wState & CBF_NOREDRAW) )
+ RedrawWindow( lphc->self, NULL, 0, RDW_INVALIDATE |
+ RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
+
+ EnableWindow( lphc->hWndLBox, TRUE );
+ if (GetCapture() != lphc->self)
+ SetCapture(lphc->hWndLBox);
+}
+
+/***********************************************************************
+ * CBRollUp
+ *
+ * Hide listbox popup.
+ */
+static void CBRollUp( LPHEADCOMBO lphc, BOOL ok, BOOL bButton )
+{
+ HWND hWnd = lphc->self;
+
+ TRACE("[%p]: sel ok? [%i] dropped? [%i]\n",
+ lphc->self, ok, (INT)(lphc->wState & CBF_DROPPED));
+
+ CB_NOTIFY( lphc, (ok) ? CBN_SELENDOK : CBN_SELENDCANCEL );
+
+ if( IsWindow( hWnd ) && CB_GETTYPE(lphc) != CBS_SIMPLE )
+ {
+
+ if( lphc->wState & CBF_DROPPED )
+ {
+ RECT rect;
+
+ lphc->wState &= ~CBF_DROPPED;
+ ShowWindow( lphc->hWndLBox, SW_HIDE );
+
+ if(GetCapture() == lphc->hWndLBox)
+ {
+ ReleaseCapture();
+ }
+
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
+ {
+ rect = lphc->buttonRect;
+ }
+ else
+ {
+ if( bButton )
+ {
+ UnionRect( &rect,
+ &lphc->buttonRect,
+ &lphc->textRect);
+ }
+ else
+ rect = lphc->textRect;
+
+ bButton = TRUE;
+ }
+
+ if( bButton && !(lphc->wState & CBF_NOREDRAW) )
+ RedrawWindow( hWnd, &rect, 0, RDW_INVALIDATE |
+ RDW_ERASE | RDW_UPDATENOW | RDW_NOCHILDREN );
+ CB_NOTIFY( lphc, CBN_CLOSEUP );
+ }
+ }
+}
+
+/***********************************************************************
+ * COMBO_FlipListbox
+ *
+ * Used by the ComboLBox to show/hide itself in response to VK_F4, etc...
+ */
+BOOL COMBO_FlipListbox( LPHEADCOMBO lphc, BOOL ok, BOOL bRedrawButton )
+{
+ if( lphc->wState & CBF_DROPPED )
+ {
+ CBRollUp( lphc, ok, bRedrawButton );
+ return FALSE;
+ }
+
+ CBDropDown( lphc );
+ return TRUE;
+}
+
+/***********************************************************************
+ * CBRepaintButton
+ */
+static void CBRepaintButton( LPHEADCOMBO lphc )
+ {
+ InvalidateRect(lphc->self, &lphc->buttonRect, TRUE);
+ UpdateWindow(lphc->self);
+}
+
+/***********************************************************************
+ * COMBO_SetFocus
+ */
+static void COMBO_SetFocus( LPHEADCOMBO lphc )
+{
+ if( !(lphc->wState & CBF_FOCUSED) )
+ {
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
+ SendMessageW(lphc->hWndLBox, LB_CARETON, 0, 0);
+
+ /* This is wrong. Message sequences seem to indicate that this
+ is set *after* the notify. */
+ /* lphc->wState |= CBF_FOCUSED; */
+
+ if( !(lphc->wState & CBF_EDIT) )
+ InvalidateRect(lphc->self, &lphc->textRect, TRUE);
+
+ CB_NOTIFY( lphc, CBN_SETFOCUS );
+ lphc->wState |= CBF_FOCUSED;
+ }
+}
+
+/***********************************************************************
+ * COMBO_KillFocus
+ */
+static void COMBO_KillFocus( LPHEADCOMBO lphc )
+{
+ HWND hWnd = lphc->self;
+
+ if( lphc->wState & CBF_FOCUSED )
+ {
+ CBRollUp( lphc, FALSE, TRUE );
+ if( IsWindow( hWnd ) )
+ {
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWNLIST )
+ SendMessageW(lphc->hWndLBox, LB_CARETOFF, 0, 0);
+
+ lphc->wState &= ~CBF_FOCUSED;
+
+ /* redraw text */
+ if( !(lphc->wState & CBF_EDIT) )
+ InvalidateRect(lphc->self, &lphc->textRect, TRUE);
+
+ CB_NOTIFY( lphc, CBN_KILLFOCUS );
+ }
+ }
+}
+
+/***********************************************************************
+ * COMBO_Command
+ */
+static LRESULT COMBO_Command( LPHEADCOMBO lphc, WPARAM wParam, HWND hWnd )
+{
+ if ( lphc->wState & CBF_EDIT && lphc->hWndEdit == hWnd )
+ {
+ /* ">> 8" makes gcc generate jump-table instead of cmp ladder */
+
+ switch( HIWORD(wParam) >> 8 )
+ {
+ case (EN_SETFOCUS >> 8):
+
+ TRACE("[%p]: edit [%p] got focus\n", lphc->self, lphc->hWndEdit );
+
+ COMBO_SetFocus( lphc );
+ break;
+
+ case (EN_KILLFOCUS >> 8):
+
+ TRACE("[%p]: edit [%p] lost focus\n", lphc->self, lphc->hWndEdit );
+
+ /* NOTE: it seems that Windows' edit control sends an
+ * undocumented message WM_USER + 0x1B instead of this
+ * notification (only when it happens to be a part of
+ * the combo). ?? - AK.
+ */
+
+ COMBO_KillFocus( lphc );
+ break;
+
+
+ case (EN_CHANGE >> 8):
+ /*
+ * In some circumstances (when the selection of the combobox
+ * is changed for example) we don't want the EN_CHANGE notification
+ * to be forwarded to the parent of the combobox. This code
+ * checks a flag that is set in these occasions and ignores the
+ * notification.
+ */
+ if (lphc->wState & CBF_NOLBSELECT)
+ {
+ lphc->wState &= ~CBF_NOLBSELECT;
+ }
+ else
+ {
+ CBUpdateLBox( lphc, lphc->wState & CBF_DROPPED );
+ }
+
+ if (!(lphc->wState & CBF_NOEDITNOTIFY))
+ CB_NOTIFY( lphc, CBN_EDITCHANGE );
+ break;
+
+ case (EN_UPDATE >> 8):
+ if (!(lphc->wState & CBF_NOEDITNOTIFY))
+ CB_NOTIFY( lphc, CBN_EDITUPDATE );
+ break;
+
+ case (EN_ERRSPACE >> 8):
+ CB_NOTIFY( lphc, CBN_ERRSPACE );
+ }
+ }
+ else if( lphc->hWndLBox == hWnd )
+ {
+ switch( (short)HIWORD(wParam) )
+ {
+ case LBN_ERRSPACE:
+ CB_NOTIFY( lphc, CBN_ERRSPACE );
+ break;
+
+ case LBN_DBLCLK:
+ CB_NOTIFY( lphc, CBN_DBLCLK );
+ break;
+
+ case LBN_SELCHANGE:
+ case LBN_SELCANCEL:
+
+ TRACE("[%p]: lbox selection change [%x]\n", lphc->self, lphc->wState );
+
+ /* do not roll up if selection is being tracked
+ * by arrow keys in the dropdown listbox */
+ if (!(lphc->wState & CBF_NOROLLUP))
+ {
+ CBRollUp( lphc, (HIWORD(wParam) == LBN_SELCHANGE), TRUE );
+ }
+ else lphc->wState &= ~CBF_NOROLLUP;
+
+ CB_NOTIFY( lphc, CBN_SELCHANGE );
+
+ if( HIWORD(wParam) == LBN_SELCHANGE)
+ {
+ if( lphc->wState & CBF_EDIT )
+ lphc->wState |= CBF_NOLBSELECT;
+ CBPaintText( lphc, NULL );
+ }
+ break;
+
+ case LBN_SETFOCUS:
+ case LBN_KILLFOCUS:
+ /* nothing to do here since ComboLBox always resets the focus to its
+ * combo/edit counterpart */
+ break;
+ }
+ }
+ return 0;
+}
+
+/***********************************************************************
+ * COMBO_ItemOp
+ *
+ * Fixup an ownerdrawn item operation and pass it up to the combobox owner.
+ */
+static LRESULT COMBO_ItemOp( LPHEADCOMBO lphc, UINT msg, LPARAM lParam )
+{
+ HWND hWnd = lphc->self;
+ UINT id = (UINT)GetWindowLongPtrW( hWnd, GWLP_ID );
+
+ TRACE("[%p]: ownerdraw op %04x\n", lphc->self, msg );
+
+ switch( msg )
+ {
+ case WM_DELETEITEM:
+ {
+ DELETEITEMSTRUCT *lpIS = (DELETEITEMSTRUCT *)lParam;
+ lpIS->CtlType = ODT_COMBOBOX;
+ lpIS->CtlID = id;
+ lpIS->hwndItem = hWnd;
+ break;
+ }
+ case WM_DRAWITEM:
+ {
+ DRAWITEMSTRUCT *lpIS = (DRAWITEMSTRUCT *)lParam;
+ lpIS->CtlType = ODT_COMBOBOX;
+ lpIS->CtlID = id;
+ lpIS->hwndItem = hWnd;
+ break;
+ }
+ case WM_COMPAREITEM:
+ {
+ COMPAREITEMSTRUCT *lpIS = (COMPAREITEMSTRUCT *)lParam;
+ lpIS->CtlType = ODT_COMBOBOX;
+ lpIS->CtlID = id;
+ lpIS->hwndItem = hWnd;
+ break;
+ }
+ case WM_MEASUREITEM:
+ {
+ MEASUREITEMSTRUCT *lpIS = (MEASUREITEMSTRUCT *)lParam;
+ lpIS->CtlType = ODT_COMBOBOX;
+ lpIS->CtlID = id;
+ break;
+ }
+ }
+ return SendMessageW(lphc->owner, msg, id, lParam);
+}
+
+
+/***********************************************************************
+ * COMBO_GetTextW
+ */
+static LRESULT COMBO_GetText( HEADCOMBO *lphc, INT count, LPWSTR buf )
+{
+ INT length;
+
+ if( lphc->wState & CBF_EDIT )
+ return SendMessageW( lphc->hWndEdit, WM_GETTEXT, count, (LPARAM)buf );
+
+ /* get it from the listbox */
+
+ if (!count || !buf) return 0;
+ if( lphc->hWndLBox )
+ {
+ INT idx = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
+ if (idx == LB_ERR) goto error;
+ length = SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, idx, 0 );
+ if (length == LB_ERR) goto error;
+
+ /* 'length' is without the terminating character */
+ if (length >= count)
+ {
+ LPWSTR lpBuffer = HeapAlloc(GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR));
+ if (!lpBuffer) goto error;
+ length = SendMessageW(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)lpBuffer);
+
+ /* truncate if buffer is too short */
+ if (length != LB_ERR)
+ {
+ lstrcpynW( buf, lpBuffer, count );
+ length = count;
+ }
+ HeapFree( GetProcessHeap(), 0, lpBuffer );
+ }
+ else length = SendMessageW(lphc->hWndLBox, LB_GETTEXT, idx, (LPARAM)buf);
+
+ if (length == LB_ERR) return 0;
+ return length;
+ }
+
+ error: /* error - truncate string, return zero */
+ buf[0] = 0;
+ return 0;
+}
+
+/***********************************************************************
+ * CBResetPos
+ *
+ * This function sets window positions according to the updated
+ * component placement struct.
+ */
+static void CBResetPos(
+ LPHEADCOMBO lphc,
+ const RECT *rectEdit,
+ const RECT *rectLB,
+ BOOL bRedraw)
+{
+ BOOL bDrop = (CB_GETTYPE(lphc) != CBS_SIMPLE);
+
+ /* NOTE: logs sometimes have WM_LBUTTONUP before a cascade of
+ * sizing messages */
+
+ if( lphc->wState & CBF_EDIT )
+ SetWindowPos( lphc->hWndEdit, 0,
+ rectEdit->left, rectEdit->top,
+ rectEdit->right - rectEdit->left,
+ rectEdit->bottom - rectEdit->top,
+ SWP_NOZORDER | SWP_NOACTIVATE | ((bDrop) ? SWP_NOREDRAW : 0) );
+
+ SetWindowPos( lphc->hWndLBox, 0,
+ rectLB->left, rectLB->top,
+ rectLB->right - rectLB->left,
+ rectLB->bottom - rectLB->top,
+ SWP_NOACTIVATE | SWP_NOZORDER | ((bDrop) ? SWP_NOREDRAW : 0) );
+
+ if( bDrop )
+ {
+ if( lphc->wState & CBF_DROPPED )
+ {
+ lphc->wState &= ~CBF_DROPPED;
+ ShowWindow( lphc->hWndLBox, SW_HIDE );
+ }
+
+ if( bRedraw && !(lphc->wState & CBF_NOREDRAW) )
+ RedrawWindow( lphc->self, NULL, 0,
+ RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
+ }
+}
+
+
+/***********************************************************************
+ * COMBO_Size
+ */
+static void COMBO_Size( LPHEADCOMBO lphc )
+{
+ /*
+ * Those controls are always the same height. So we have to make sure
+ * they are not resized to another value.
+ */
+ if( CB_GETTYPE(lphc) != CBS_SIMPLE )
+ {
+ int newComboHeight, curComboHeight, curComboWidth;
+ RECT rc;
+
+ GetWindowRect(lphc->self, &rc);
+ curComboHeight = rc.bottom - rc.top;
+ curComboWidth = rc.right - rc.left;
+ newComboHeight = CBGetTextAreaHeight(lphc->self, lphc) + 2*COMBO_YBORDERSIZE();
+
+ /*
+ * Resizing a combobox has another side effect, it resizes the dropped
+ * rectangle as well. However, it does it only if the new height for the
+ * combobox is more than the height it should have. In other words,
+ * if the application resizing the combobox only had the intention to resize
+ * the actual control, for example, to do the layout of a dialog that is
+ * resized, the height of the dropdown is not changed.
+ */
+ if( curComboHeight > newComboHeight )
+ {
+ TRACE("oldComboHeight=%d, newComboHeight=%d, oldDropBottom=%d, oldDropTop=%d\n",
+ curComboHeight, newComboHeight, lphc->droppedRect.bottom,
+ lphc->droppedRect.top);
+ lphc->droppedRect.bottom = lphc->droppedRect.top + curComboHeight - newComboHeight;
+ }
+ /*
+ * Restore original height
+ */
+ if( curComboHeight != newComboHeight )
+ SetWindowPos(lphc->self, 0, 0, 0, curComboWidth, newComboHeight,
+ SWP_NOZORDER|SWP_NOMOVE|SWP_NOACTIVATE|SWP_NOREDRAW);
+ }
+
+ CBCalcPlacement(lphc->self,
+ lphc,
+ &lphc->textRect,
+ &lphc->buttonRect,
+ &lphc->droppedRect);
+
+ CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
+}
+
+
+/***********************************************************************
+ * COMBO_Font
+ */
+static void COMBO_Font( LPHEADCOMBO lphc, HFONT hFont, BOOL bRedraw )
+{
+ /*
+ * Set the font
+ */
+ lphc->hFont = hFont;
+
+ /*
+ * Propagate to owned windows.
+ */
+ if( lphc->wState & CBF_EDIT )
+ SendMessageW(lphc->hWndEdit, WM_SETFONT, (WPARAM)hFont, bRedraw);
+ SendMessageW(lphc->hWndLBox, WM_SETFONT, (WPARAM)hFont, bRedraw);
+
+ /*
+ * Redo the layout of the control.
+ */
+ if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
+ {
+ CBCalcPlacement(lphc->self,
+ lphc,
+ &lphc->textRect,
+ &lphc->buttonRect,
+ &lphc->droppedRect);
+
+ CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
+ }
+ else
+ {
+ CBForceDummyResize(lphc);
+ }
+}
+
+
+/***********************************************************************
+ * COMBO_SetItemHeight
+ */
+static LRESULT COMBO_SetItemHeight( LPHEADCOMBO lphc, INT index, INT height )
+{
+ LRESULT lRet = CB_ERR;
+
+ if( index == -1 ) /* set text field height */
+ {
+ if( height < 32768 )
+ {
+ lphc->editHeight = height + 2; /* Is the 2 for 2*EDIT_CONTROL_PADDING? */
+
+ /*
+ * Redo the layout of the control.
+ */
+ if ( CB_GETTYPE(lphc) == CBS_SIMPLE)
+ {
+ CBCalcPlacement(lphc->self,
+ lphc,
+ &lphc->textRect,
+ &lphc->buttonRect,
+ &lphc->droppedRect);
+
+ CBResetPos( lphc, &lphc->textRect, &lphc->droppedRect, TRUE );
+ }
+ else
+ {
+ CBForceDummyResize(lphc);
+ }
+
+ lRet = height;
+ }
+ }
+ else if ( CB_OWNERDRAWN(lphc) ) /* set listbox item height */
+ lRet = SendMessageW(lphc->hWndLBox, LB_SETITEMHEIGHT, index, height);
+ return lRet;
+}
+
+/***********************************************************************
+ * COMBO_SelectString
+ */
+static LRESULT COMBO_SelectString( LPHEADCOMBO lphc, INT start, LPARAM pText)
+{
+ INT index = SendMessageW(lphc->hWndLBox, LB_SELECTSTRING, start, pText);
+ if( index >= 0 )
+ {
+ if( lphc->wState & CBF_EDIT )
+ CBUpdateEdit( lphc, index );
+ else
+ {
+ InvalidateRect(lphc->self, &lphc->textRect, TRUE);
+ }
+ }
+ return (LRESULT)index;
+}
+
+/***********************************************************************
+ * COMBO_LButtonDown
+ */
+static void COMBO_LButtonDown( LPHEADCOMBO lphc, LPARAM lParam )
+{
+ POINT pt;
+ BOOL bButton;
+ HWND hWnd = lphc->self;
+
+ pt.x = (short)LOWORD(lParam);
+ pt.y = (short)HIWORD(lParam);
+ bButton = PtInRect(&lphc->buttonRect, pt);
+
+ if( (CB_GETTYPE(lphc) == CBS_DROPDOWNLIST) ||
+ (bButton && (CB_GETTYPE(lphc) == CBS_DROPDOWN)) )
+ {
+ lphc->wState |= CBF_BUTTONDOWN;
+ if( lphc->wState & CBF_DROPPED )
+ {
+ /* got a click to cancel selection */
+
+ lphc->wState &= ~CBF_BUTTONDOWN;
+ CBRollUp( lphc, TRUE, FALSE );
+ if( !IsWindow( hWnd ) ) return;
+
+ if( lphc->wState & CBF_CAPTURE )
+ {
+ lphc->wState &= ~CBF_CAPTURE;
+ ReleaseCapture();
+ }
+ }
+ else
+ {
+ /* drop down the listbox and start tracking */
+
+ lphc->wState |= CBF_CAPTURE;
+ SetCapture( hWnd );
+ CBDropDown( lphc );
+ }
+ if( bButton ) CBRepaintButton( lphc );
+ }
+}
+
+/***********************************************************************
+ * COMBO_LButtonUp
+ *
+ * Release capture and stop tracking if needed.
+ */
+static void COMBO_LButtonUp( LPHEADCOMBO lphc )
+{
+ if( lphc->wState & CBF_CAPTURE )
+ {
+ lphc->wState &= ~CBF_CAPTURE;
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWN )
+ {
+ INT index = CBUpdateLBox( lphc, TRUE );
+ /* Update edit only if item is in the list */
+ if(index >= 0)
+ {
+ lphc->wState |= CBF_NOLBSELECT;
+ CBUpdateEdit( lphc, index );
+ lphc->wState &= ~CBF_NOLBSELECT;
+ }
+ }
+ ReleaseCapture();
+ SetCapture(lphc->hWndLBox);
+ }
+
+ if( lphc->wState & CBF_BUTTONDOWN )
+ {
+ lphc->wState &= ~CBF_BUTTONDOWN;
+ CBRepaintButton( lphc );
+ }
+}
+
+/***********************************************************************
+ * COMBO_MouseMove
+ *
+ * Two things to do - track combo button and release capture when
+ * pointer goes into the listbox.
+ */
+static void COMBO_MouseMove( LPHEADCOMBO lphc, WPARAM wParam, LPARAM lParam )
+{
+ POINT pt;
+ RECT lbRect;
+
+ pt.x = (short)LOWORD(lParam);
+ pt.y = (short)HIWORD(lParam);
+
+ if( lphc->wState & CBF_BUTTONDOWN )
+ {
+ BOOL bButton;
+
+ bButton = PtInRect(&lphc->buttonRect, pt);
+
+ if( !bButton )
+ {
+ lphc->wState &= ~CBF_BUTTONDOWN;
+ CBRepaintButton( lphc );
+ }
+ }
+
+ GetClientRect( lphc->hWndLBox, &lbRect );
+ MapWindowPoints( lphc->self, lphc->hWndLBox, &pt, 1 );
+ if( PtInRect(&lbRect, pt) )
+ {
+ lphc->wState &= ~CBF_CAPTURE;
+ ReleaseCapture();
+ if( CB_GETTYPE(lphc) == CBS_DROPDOWN ) CBUpdateLBox( lphc, TRUE );
+
+ /* hand over pointer tracking */
+ SendMessageW(lphc->hWndLBox, WM_LBUTTONDOWN, wParam, lParam);
+ }
+}
+
+static LRESULT COMBO_GetComboBoxInfo(const HEADCOMBO *lphc, COMBOBOXINFO *pcbi)
+{
+ if (!pcbi || (pcbi->cbSize < sizeof(COMBOBOXINFO)))
+ return FALSE;
+
+ pcbi->rcItem = lphc->textRect;
+ pcbi->rcButton = lphc->buttonRect;
+ pcbi->stateButton = 0;
+ if (lphc->wState & CBF_BUTTONDOWN)
+ pcbi->stateButton |= STATE_SYSTEM_PRESSED;
+ if (IsRectEmpty(&lphc->buttonRect))
+ pcbi->stateButton |= STATE_SYSTEM_INVISIBLE;
+ pcbi->hwndCombo = lphc->self;
+ pcbi->hwndItem = lphc->hWndEdit;
+ pcbi->hwndList = lphc->hWndLBox;
+ return TRUE;
+}
+
+LRESULT CALLBACK COMBO_WindowProc( HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam )
+{
+ HEADCOMBO *lphc = (HEADCOMBO *)GetWindowLongPtrW( hwnd, 0 );
+
+ TRACE("[%p]: msg %#x wp %08lx lp %08lx\n", hwnd, message, wParam, lParam );
+
+ if (!IsWindow(hwnd)) return 0;
+
+ if (lphc || message == WM_NCCREATE)
+ switch(message)
+ {
+ case WM_NCCREATE:
+ {
+ LONG style = ((CREATESTRUCTW *)lParam)->style;
+ return COMBO_NCCreate(hwnd, style);
+ }
+
+ case WM_NCDESTROY:
+ COMBO_NCDestroy(lphc);
+ break;/* -> DefWindowProc */
+
+ case WM_CREATE:
+ {
+ HWND hwndParent;
+ LONG style;
+
+ hwndParent = ((CREATESTRUCTW *)lParam)->hwndParent;
+ style = ((CREATESTRUCTW *)lParam)->style;
+ return COMBO_Create(hwnd, lphc, hwndParent, style);
+ }
+
+ case WM_PRINTCLIENT:
+ case WM_PAINT:
+ return COMBO_Paint(lphc, (HDC)wParam);
+
+ case WM_ERASEBKGND:
+ /* do all painting in WM_PAINT like Windows does */
+ return 1;
+
+ case WM_GETDLGCODE:
+ {
+ LRESULT result = DLGC_WANTARROWS | DLGC_WANTCHARS;
+ if (lParam && (((LPMSG)lParam)->message == WM_KEYDOWN))
+ {
+ int vk = (int)((LPMSG)lParam)->wParam;
+
+ if ((vk == VK_RETURN || vk == VK_ESCAPE) && (lphc->wState & CBF_DROPPED))
+ result |= DLGC_WANTMESSAGE;
+ }
+ return result;
+ }
+
+ case WM_SIZE:
+ if (lphc->hWndLBox && !(lphc->wState & CBF_NORESIZE))
+ COMBO_Size( lphc );
+ return TRUE;
+
+ case WM_SETFONT:
+ COMBO_Font( lphc, (HFONT)wParam, (BOOL)lParam );
+ return TRUE;
+
+ case WM_GETFONT:
+ return (LRESULT)lphc->hFont;
+
+ case WM_SETFOCUS:
+ if (lphc->wState & CBF_EDIT)
+ {
+ SetFocus( lphc->hWndEdit );
+ /* The first time focus is received, select all the text */
+ if (!(lphc->wState & CBF_BEENFOCUSED))
+ {
+ SendMessageW(lphc->hWndEdit, EM_SETSEL, 0, -1);
+ lphc->wState |= CBF_BEENFOCUSED;
+ }
+ }
+ else
+ COMBO_SetFocus( lphc );
+ return TRUE;
+
+ case WM_KILLFOCUS:
+ {
+ HWND hwndFocus = (HWND)wParam;
+ if (!hwndFocus || (hwndFocus != lphc->hWndEdit && hwndFocus != lphc->hWndLBox))
+ COMBO_KillFocus( lphc );
+ return TRUE;
+ }
+
+ case WM_COMMAND:
+ return COMBO_Command( lphc, wParam, (HWND)lParam );
+
+ case WM_GETTEXT:
+ return COMBO_GetText( lphc, wParam, (LPWSTR)lParam );
+
+ case WM_SETTEXT:
+ case WM_GETTEXTLENGTH:
+ case WM_CLEAR:
+ if ((message == WM_GETTEXTLENGTH) && !ISWIN31 && !(lphc->wState & CBF_EDIT))
+ {
+ int j = SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
+ if (j == -1) return 0;
+ return SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, j, 0);
+ }
+ else if ( lphc->wState & CBF_EDIT )
+ {
+ LRESULT ret;
+ lphc->wState |= CBF_NOEDITNOTIFY;
+ ret = SendMessageW(lphc->hWndEdit, message, wParam, lParam);
+ lphc->wState &= ~CBF_NOEDITNOTIFY;
+ return ret;
+ }
+ else
+ return CB_ERR;
+
+ case WM_CUT:
+ case WM_PASTE:
+ case WM_COPY:
+ if (lphc->wState & CBF_EDIT)
+ return SendMessageW(lphc->hWndEdit, message, wParam, lParam);
+ else return CB_ERR;
+
+ case WM_DRAWITEM:
+ case WM_DELETEITEM:
+ case WM_COMPAREITEM:
+ case WM_MEASUREITEM:
+ return COMBO_ItemOp(lphc, message, lParam);
+
+ case WM_ENABLE:
+ if (lphc->wState & CBF_EDIT)
+ EnableWindow( lphc->hWndEdit, (BOOL)wParam );
+ EnableWindow( lphc->hWndLBox, (BOOL)wParam );
+
+ /* Force the control to repaint when the enabled state changes. */
+ InvalidateRect(lphc->self, NULL, TRUE);
+ return TRUE;
+
+ case WM_SETREDRAW:
+ if (wParam)
+ lphc->wState &= ~CBF_NOREDRAW;
+ else
+ lphc->wState |= CBF_NOREDRAW;
+
+ if ( lphc->wState & CBF_EDIT )
+ SendMessageW(lphc->hWndEdit, message, wParam, lParam);
+ SendMessageW(lphc->hWndLBox, message, wParam, lParam);
+ return 0;
+
+ case WM_SYSKEYDOWN:
+ if ( KEYDATA_ALT & HIWORD(lParam) )
+ if( wParam == VK_UP || wParam == VK_DOWN )
+ COMBO_FlipListbox( lphc, FALSE, FALSE );
+ return 0;
+
+ case WM_KEYDOWN:
+ if ((wParam == VK_RETURN || wParam == VK_ESCAPE) &&
+ (lphc->wState & CBF_DROPPED))
+ {
+ CBRollUp( lphc, wParam == VK_RETURN, FALSE );
+ return TRUE;
+ }
+ else if ((wParam == VK_F4) && !(lphc->wState & CBF_EUI))
+ {
+ COMBO_FlipListbox( lphc, FALSE, FALSE );
+ return TRUE;
+ }
+ /* fall through */
+ case WM_CHAR:
+ case WM_IME_CHAR:
+ {
+ HWND hwndTarget;
+
+ if ( lphc->wState & CBF_EDIT )
+ hwndTarget = lphc->hWndEdit;
+ else
+ hwndTarget = lphc->hWndLBox;
+
+ return SendMessageW(hwndTarget, message, wParam, lParam);
+ }
+
+ case WM_LBUTTONDOWN:
+ if ( !(lphc->wState & CBF_FOCUSED) ) SetFocus( lphc->self );
+ if ( lphc->wState & CBF_FOCUSED ) COMBO_LButtonDown( lphc, lParam );
+ return TRUE;
+
+ case WM_LBUTTONUP:
+ COMBO_LButtonUp( lphc );
+ return TRUE;
+
+ case WM_MOUSEMOVE:
+ if ( lphc->wState & CBF_CAPTURE )
+ COMBO_MouseMove( lphc, wParam, lParam );
+ return TRUE;
+
+ case WM_MOUSEWHEEL:
+ if (wParam & (MK_SHIFT | MK_CONTROL))
+ return DefWindowProcW(hwnd, message, wParam, lParam);
+
+ if (GET_WHEEL_DELTA_WPARAM(wParam) > 0) return SendMessageW(hwnd, WM_KEYDOWN, VK_UP, 0);
+ if (GET_WHEEL_DELTA_WPARAM(wParam) < 0) return SendMessageW(hwnd, WM_KEYDOWN, VK_DOWN, 0);
+ return TRUE;
+
+ /* Combo messages */
+ case CB_ADDSTRING:
+ if (lphc->dwStyle & CBS_LOWERCASE)
+ CharLowerW((LPWSTR)lParam);
+ else if (lphc->dwStyle & CBS_UPPERCASE)
+ CharUpperW((LPWSTR)lParam);
+ return SendMessageW(lphc->hWndLBox, LB_ADDSTRING, 0, lParam);
+
+ case CB_INSERTSTRING:
+ if (lphc->dwStyle & CBS_LOWERCASE)
+ CharLowerW((LPWSTR)lParam);
+ else if (lphc->dwStyle & CBS_UPPERCASE)
+ CharUpperW((LPWSTR)lParam);
+ return SendMessageW(lphc->hWndLBox, LB_INSERTSTRING, wParam, lParam);
+
+ case CB_DELETESTRING:
+ return SendMessageW(lphc->hWndLBox, LB_DELETESTRING, wParam, 0);
+
+ case CB_SELECTSTRING:
+ return COMBO_SelectString(lphc, (INT)wParam, lParam);
+
+ case CB_FINDSTRING:
+ return SendMessageW(lphc->hWndLBox, LB_FINDSTRING, wParam, lParam);
+
+ case CB_FINDSTRINGEXACT:
+ return SendMessageW(lphc->hWndLBox, LB_FINDSTRINGEXACT, wParam, lParam);
+
+ case CB_SETITEMHEIGHT:
+ return COMBO_SetItemHeight( lphc, (INT)wParam, (INT)lParam);
+
+ case CB_GETITEMHEIGHT:
+ if ((INT)wParam >= 0) /* listbox item */
+ return SendMessageW(lphc->hWndLBox, LB_GETITEMHEIGHT, wParam, 0);
+ return CBGetTextAreaHeight(hwnd, lphc);
+
+ case CB_RESETCONTENT:
+ SendMessageW(lphc->hWndLBox, LB_RESETCONTENT, 0, 0);
+
+ if ((lphc->wState & CBF_EDIT) && CB_HASSTRINGS(lphc))
+ {
+ static const WCHAR empty_stringW[] = { 0 };
+ SendMessageW(lphc->hWndEdit, WM_SETTEXT, 0, (LPARAM)empty_stringW);
+ }
+ else
+ InvalidateRect(lphc->self, NULL, TRUE);
+ return TRUE;
+
+ case CB_INITSTORAGE:
+ return SendMessageW(lphc->hWndLBox, LB_INITSTORAGE, wParam, lParam);
+
+ case CB_GETHORIZONTALEXTENT:
+ return SendMessageW(lphc->hWndLBox, LB_GETHORIZONTALEXTENT, 0, 0);
+
+ case CB_SETHORIZONTALEXTENT:
+ return SendMessageW(lphc->hWndLBox, LB_SETHORIZONTALEXTENT, wParam, 0);
+
+ case CB_GETTOPINDEX:
+ return SendMessageW(lphc->hWndLBox, LB_GETTOPINDEX, 0, 0);
+
+ case CB_GETLOCALE:
+ return SendMessageW(lphc->hWndLBox, LB_GETLOCALE, 0, 0);
+
+ case CB_SETLOCALE:
+ return SendMessageW(lphc->hWndLBox, LB_SETLOCALE, wParam, 0);
+
+ case CB_SETDROPPEDWIDTH:
+ if ((CB_GETTYPE(lphc) == CBS_SIMPLE) || (INT)wParam >= 32768)
+ return CB_ERR;
+
+ /* new value must be higher than combobox width */
+ if ((INT)wParam >= lphc->droppedRect.right - lphc->droppedRect.left)
+ lphc->droppedWidth = wParam;
+ else if (wParam)
+ lphc->droppedWidth = 0;
+
+ /* recalculate the combobox area */
+ CBCalcPlacement(hwnd, lphc, &lphc->textRect, &lphc->buttonRect, &lphc->droppedRect );
+
+ /* fall through */
+ case CB_GETDROPPEDWIDTH:
+ if (lphc->droppedWidth)
+ return lphc->droppedWidth;
+ return lphc->droppedRect.right - lphc->droppedRect.left;
+
+ case CB_GETDROPPEDCONTROLRECT:
+ if (lParam)
+ CBGetDroppedControlRect(lphc, (LPRECT)lParam );
+ return CB_OKAY;
+
+ case CB_GETDROPPEDSTATE:
+ return (lphc->wState & CBF_DROPPED) != 0;
+
+ case CB_DIR:
+ return SendMessageW(lphc->hWndLBox, LB_DIR, wParam, lParam);
+
+ case CB_SHOWDROPDOWN:
+ if (CB_GETTYPE(lphc) != CBS_SIMPLE)
+ {
+ if (wParam)
+ {
+ if (!(lphc->wState & CBF_DROPPED))
+ CBDropDown( lphc );
+ }
+ else if (lphc->wState & CBF_DROPPED)
+ CBRollUp( lphc, FALSE, TRUE );
+ }
+ return TRUE;
+
+ case CB_GETCOUNT:
+ return SendMessageW(lphc->hWndLBox, LB_GETCOUNT, 0, 0);
+
+ case CB_GETCURSEL:
+ return SendMessageW(lphc->hWndLBox, LB_GETCURSEL, 0, 0);
+
+ case CB_SETCURSEL:
+ lParam = SendMessageW(lphc->hWndLBox, LB_SETCURSEL, wParam, 0);
+ if (lParam >= 0)
+ SendMessageW(lphc->hWndLBox, LB_SETTOPINDEX, wParam, 0);
+
+ /* no LBN_SELCHANGE in this case, update manually */
+ CBPaintText(lphc, NULL);
+ lphc->wState &= ~CBF_SELCHANGE;
+ return lParam;
+
+ case CB_GETLBTEXT:
+ return SendMessageW(lphc->hWndLBox, LB_GETTEXT, wParam, lParam);
+
+ case CB_GETLBTEXTLEN:
+ return SendMessageW(lphc->hWndLBox, LB_GETTEXTLEN, wParam, 0);
+
+ case CB_GETITEMDATA:
+ return SendMessageW(lphc->hWndLBox, LB_GETITEMDATA, wParam, 0);
+
+ case CB_SETITEMDATA:
+ return SendMessageW(lphc->hWndLBox, LB_SETITEMDATA, wParam, lParam);
+
+ case CB_GETEDITSEL:
+ /* Edit checks passed parameters itself */
+ if (lphc->wState & CBF_EDIT)
+ return SendMessageW(lphc->hWndEdit, EM_GETSEL, wParam, lParam);
+ return CB_ERR;
+
+ case CB_SETEDITSEL:
+ if (lphc->wState & CBF_EDIT)
+ return SendMessageW(lphc->hWndEdit, EM_SETSEL, (INT)(SHORT)LOWORD(lParam), (INT)(SHORT)HIWORD(lParam) );
+ return CB_ERR;
+
+ case CB_SETEXTENDEDUI:
+ if (CB_GETTYPE(lphc) == CBS_SIMPLE )
+ return CB_ERR;
+ if (wParam)
+ lphc->wState |= CBF_EUI;
+ else
+ lphc->wState &= ~CBF_EUI;
+ return CB_OKAY;
+
+ case CB_GETEXTENDEDUI:
+ return (lphc->wState & CBF_EUI) != 0;
+
+ case CB_GETCOMBOBOXINFO:
+ return COMBO_GetComboBoxInfo(lphc, (COMBOBOXINFO *)lParam);
+
+ case CB_LIMITTEXT:
+ if (lphc->wState & CBF_EDIT)
+ return SendMessageW(lphc->hWndEdit, EM_LIMITTEXT, wParam, lParam);
+ return TRUE;
+
+ default:
+ if (message >= WM_USER)
+ WARN("unknown msg WM_USER+%04x wp=%04lx lp=%08lx\n", message - WM_USER, wParam, lParam );
+ break;
+ }
+
+ return DefWindowProcW(hwnd, message, wParam, lParam);
+}
+
+void COMBO_Register(void)
+{
+ WNDCLASSW wndClass;
+
+ memset(&wndClass, 0, sizeof(wndClass));
+ wndClass.style = CS_PARENTDC | CS_DBLCLKS | CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
+ wndClass.lpfnWndProc = COMBO_WindowProc;
+ wndClass.cbClsExtra = 0;
+ wndClass.cbWndExtra = sizeof(HEADCOMBO *);
+ wndClass.hCursor = LoadCursorW(0, (LPWSTR)IDC_ARROW);
+ wndClass.hbrBackground = NULL;
+ wndClass.lpszClassName = WC_COMBOBOXW;
+ RegisterClassW(&wndClass);
+}
+
diff --git a/dlls/comctl32/comctl32.h b/dlls/comctl32/comctl32.h
index 960ec882ef..1ce9752951 100644
--- a/dlls/comctl32/comctl32.h
+++ b/dlls/comctl32/comctl32.h
@@ -178,6 +178,7 @@ HRGN set_control_clipping(HDC hdc, const RECT *rect) DECLSPEC_HIDDEN;
extern void ANIMATE_Register(void) DECLSPEC_HIDDEN;
extern void ANIMATE_Unregister(void) DECLSPEC_HIDDEN;
extern void BUTTON_Register(void) DECLSPEC_HIDDEN;
+extern void COMBO_Register(void) DECLSPEC_HIDDEN;
extern void COMBOEX_Register(void) DECLSPEC_HIDDEN;
extern void COMBOEX_Unregister(void) DECLSPEC_HIDDEN;
extern void DATETIME_Register(void) DECLSPEC_HIDDEN;
diff --git a/dlls/comctl32/commctrl.c b/dlls/comctl32/commctrl.c
index f04ab136b8..42c05e69fa 100644
--- a/dlls/comctl32/commctrl.c
+++ b/dlls/comctl32/commctrl.c
@@ -99,6 +99,7 @@ static void unregister_versioned_classes(void)
static const char *classes[] =
{
VERSION WC_BUTTONA,
+ VERSION WC_COMBOBOXA,
VERSION WC_EDITA,
VERSION WC_STATICA,
};
@@ -170,6 +171,7 @@ BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
UPDOWN_Register ();
BUTTON_Register ();
+ COMBO_Register ();
EDIT_Register ();
STATIC_Register ();
diff --git a/dlls/comctl32/tests/misc.c b/dlls/comctl32/tests/misc.c
index f5b361e6f0..7c9b4cd02e 100644
--- a/dlls/comctl32/tests/misc.c
+++ b/dlls/comctl32/tests/misc.c
@@ -346,6 +346,7 @@ static void check_class( const char *name, int must_exist, UINT style, UINT igno
if (GetClassInfoA( 0, name, &wc ))
{
todo_wine_if(strcmp(name, "Button") &&
+ strcmp(name, "ComboBox") &&
strcmp(name, "Edit") &&
strcmp(name, "Static"))
ok( !(~wc.style & style & ~ignore), "System class %s is missing bits %x (%08x/%08x)\n",
diff --git a/dlls/user32/class.c b/dlls/user32/class.c
index d4b95609a8..0e05c1f426 100644
--- a/dlls/user32/class.c
+++ b/dlls/user32/class.c
@@ -166,7 +166,6 @@ static BOOL is_builtin_class( const WCHAR *name )
{
static const WCHAR classesW[][20] =
{
- {'C','o','m','b','o','B','o','x',0},
{'C','o','m','b','o','L','B','o','x',0},
{'I','M','E',0},
{'L','i','s','t','B','o','x',0},
--
2.15.1
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