List-box does not fills correctly window space in on my own coded class "splitter"
I have implemented window class (so called "splitter") and have a problem. It means - this class works fine for text-edits, buttons, normal (usual windows) - all I have tested except form list-box. List-box docks badly - it does not fills all space which it is supposed to do. Some place is not filled correctly what makes for my class troubles. How can I it solve?
Code:
#include "SplitterWindow.h"
#include "stdafx.h"
#include <wchar.h>
bool InitializeSplitter(HINSTANCE hInstance);
HWND CreateSplitterWindow(HINSTANCE hInstance, HWND hwnd1, HWND hwnd2, wchar_t title[0x100],
HBRUSH brush, BOOL horizontal);
LRESULT CALLBACK SplitterWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
typedef struct _SplitterInfo
{
HWND hWnd1;
HWND hWnd2;
HCURSOR hCursor;
BOOL bSplitterMoving;
DWORD dwSplitterPos;
BOOL horizontal;
HBRUSH brush; // debug purposes
wchar_t title[0x100]; // debug purposes
} SplitterInfo;
bool InitializeSplitter(HINSTANCE hInstance)
{
WNDCLASS wndclass;
wndclass.style = 0; //CS_HREDRAW | CS_VREDRAW;
wndclass.lpfnWndProc = SplitterWndProc;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInstance;
wndclass.hIcon = LoadIcon(NULL, IDI_INFORMATION);
wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
wndclass.hbrBackground = (HBRUSH)GetStockObject(LTGRAY_BRUSH);
wndclass.lpszMenuName = NULL;
wndclass.lpszClassName = L"SPLITTER";
if (RegisterClass(&wndclass))
return true;
else
return false;
}
HWND CreateSplitterWindow(HINSTANCE hInstance, HWND hwnd1, HWND hwnd2, wchar_t title[0x100],
HBRUSH brush, BOOL horizontal)
{
HWND hwnd = CreateWindowEx(0, L"SPLITTER", L"Splitter",
WS_POPUP | WS_CLIPCHILDREN,
CW_USEDEFAULT, CW_USEDEFAULT,
400, 300,
NULL, NULL,
hInstance, NULL);
if (hwnd == NULL)
return NULL;
SetParent(hwnd1, hwnd);
SetParent(hwnd2, hwnd);
SplitterInfo *info = (SplitterInfo *)GlobalAlloc(GPTR, sizeof(SplitterInfo));
info->hWnd1 = hwnd1;
info->hWnd2 = hwnd2;
info->brush = brush;
wcscpy(info->title, title);
if (horizontal)
info->hCursor = LoadCursor(NULL, IDC_SIZENS);
else
info->hCursor = LoadCursor(NULL, IDC_SIZEWE);
info->bSplitterMoving = FALSE;
info->dwSplitterPos = 300;
info->horizontal = horizontal;
ShowWindow(hwnd1, TRUE);
ShowWindow(hwnd2, TRUE);
UpdateWindow(hwnd1);
UpdateWindow(hwnd2);
SetWindowLong(hwnd, GWL_USERDATA, (LONG)info);
return hwnd;
}
LRESULT CALLBACK SplitterWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
HINSTANCE hInst;
RECT rect;
SplitterInfo *info = (SplitterInfo *)GetWindowLong(hWnd, GWL_USERDATA);
switch (uMsg)
{
case WM_PAINT:
{
if (info==NULL)
break;
PAINTSTRUCT ps;
RECT rect;
GetClientRect(hWnd, &rect);
HDC hdc = BeginPaint(hWnd, &ps);
FillRect(hdc, &rect, info->brush);
EndPaint(hWnd, &ps);
}
break;
case WM_CLOSE:
return 0;
case WM_SIZE:
if (info == NULL)
break;
if (info->horizontal)
{
/*
If window is shrunk so that splitter now lies outside the
window boundaries, move the splitter within the window.
*/
if ((wParam != SIZE_MINIMIZED) && (HIWORD(lParam) < info->dwSplitterPos))
info->dwSplitterPos = HIWORD(lParam) - 10;
/* Adjust the children's size and position */
MoveWindow(info->hWnd1, 0, 0, LOWORD(lParam), info->dwSplitterPos - 1, TRUE);
MoveWindow(info->hWnd2, 0, info->dwSplitterPos+2, LOWORD(lParam) , HIWORD(lParam) - info->dwSplitterPos - 2, TRUE);
}
else
{
if ((wParam != SIZE_MINIMIZED) && (LOWORD(lParam) < info->dwSplitterPos))
info->dwSplitterPos = LOWORD(lParam) - 10;
MoveWindow(info->hWnd1, 0, 0, info->dwSplitterPos - 1, HIWORD(lParam), TRUE);
MoveWindow(info->hWnd2, info->dwSplitterPos+2, 0, LOWORD(lParam) - info->dwSplitterPos - 2, HIWORD(lParam) , TRUE);
}
return 0;
case WM_MOUSEMOVE:
if (info == NULL)
break;
if (info->horizontal)
{
if (HIWORD(lParam) > 10) // do not allow above this mark
{
SetCursor(info->hCursor);
if ((wParam == MK_LBUTTON) && info->bSplitterMoving)
{
GetClientRect(hWnd, &rect);
if (HIWORD(lParam) > rect.bottom)
return 0;
info->dwSplitterPos = HIWORD(lParam);
SendMessage(hWnd, WM_SIZE, 0, MAKELPARAM(rect.right, rect.bottom));
}
}
}
else
{
if (LOWORD(lParam) > 10) // do not allow above this mark
{
SetCursor(info->hCursor);
if ((wParam == MK_LBUTTON) && info->bSplitterMoving)
{
GetClientRect(hWnd, &rect);
if (LOWORD(lParam) > rect.right)
return 0;
info->dwSplitterPos = LOWORD(lParam);
SendMessage(hWnd, WM_SIZE, 0, MAKELPARAM(rect.right, rect.bottom));
}
}
}
return 0;
/*
case WM_NCHITTEST:
{
wchar_t string[0x100];
swprintf(string, 0x100, L"(%d,%d)", LOWORD(lParam), HIWORD(lParam));
MessageBox(hWnd, string, L"NCHITTEST", MB_ICONINFORMATION | MB_OK);
}
break;
*/
case WM_LBUTTONDOWN:
if (info == NULL)
break;
SetCursor(info->hCursor);
info->bSplitterMoving = TRUE;
SetCapture(hWnd);
return 0;
case WM_LBUTTONUP:
if (info == NULL)
break;
ReleaseCapture();
info->bSplitterMoving = FALSE;
return 0;
case WM_DESTROY:
if (info != NULL)
{
info->hCursor = NULL;
DestroyWindow(info->hWnd1);
DestroyWindow(info->hWnd2);
GlobalFree(info);
SetWindowLong(hWnd, GWL_USERDATA, NULL);
}
return 0;
}
return DefWindowProc(hWnd, uMsg, wParam, lParam);
}
Re: List-box does not fills correctly window space in on my own coded class "splitter
Just create your ListBox with the LBS_NOINTEGRALHEIGHT style set.
Re: List-box does not fills correctly window space in on my own coded class "splitter
