/*
- * ReactOS zoomin
+ * ReactOS zoomin
*
- * framewnd.c
+ * framewnd.c
*
- * Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
+ * Copyright (C) 2002 Robert Dickenson <robd@reactos.org>
+ * Copyright (C) 2005 Martin Fuchs <martin-fuchs@gmx.net>
*
- * 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 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.
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
+#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <windows.h>
+#include <windowsx.h>
#include <tchar.h>
-
+
#include "main.h"
#include "framewnd.h"
////////////////////////////////////////////////////////////////////////////////
-// Global and Local Variables:
+// Global Variables:
//
+static int s_factor = 2; // zoom factor
+
+static POINT s_srcPos = {0, 0}; // source rectangle position
+static RECT s_lastSrc = {-1,-1,-1,-1}; // last cursor position
+
+BOOL s_dragging = FALSE;
+
+
+ // zoom range
+
+#define MIN_ZOOM 1
+#define MAX_ZOOM 16
+
////////////////////////////////////////////////////////////////////////////////
-// Local module support methods
//
+// FUNCTION: SetZoom()
+//
+// PURPOSE: Change zoom level
+//
+
+static void SetZoom(HWND hWnd, int factor)
+{
+ TCHAR buffer[MAX_LOADSTRING];
+
+ if (factor>=MIN_ZOOM && factor<=MAX_ZOOM) {
+ s_factor = factor;
+
+ SetScrollPos(hWnd, SB_VERT, s_factor, TRUE);
+
+ wsprintf(buffer, TEXT("%s %dx"), szTitle, s_factor);
+ SetWindowText(hWnd, buffer);
+ }
+}
////////////////////////////////////////////////////////////////////////////////
//
-// FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
+// FUNCTION: _CmdWndProc(HWND, unsigned, WORD, LONG)
//
-// PURPOSE: Processes WM_COMMAND messages for the main frame window.
+// PURPOSE: Processes WM_COMMAND messages for the main frame window.
//
//
static BOOL _CmdWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (LOWORD(wParam)) {
- // Parse the menu selections:
- case ID_EDIT_EXIT:
- DestroyWindow(hWnd);
- break;
- case ID_EDIT_COPY:
- case ID_EDIT_REFRESH:
- case ID_OPTIONS_REFRESH_RATE:
- case ID_HELP_ABOUT:
- // TODO:
- break;
- default:
- return FALSE;
- }
+ // Parse the menu selections:
+ case ID_EDIT_EXIT:
+ DestroyWindow(hWnd);
+ break;
+
+ case ID_EDIT_COPY:
+ case ID_EDIT_REFRESH:
+ case ID_OPTIONS_REFRESH_RATE:
+ case ID_HELP_ABOUT:
+ // TODO:
+ break;
+
+ case ID_REFRESH:
+ InvalidateRect(hWnd, NULL, FALSE);
+ break;
+
+ default:
+ return FALSE;
+ }
+
return TRUE;
}
////////////////////////////////////////////////////////////////////////////////
//
-// FUNCTION: FrameWndProc(HWND, unsigned, WORD, LONG)
-//
-// PURPOSE: Processes messages for the main frame window.
-//
-// WM_COMMAND - process the application menu
-// WM_DESTROY - post a quit message and return
+// FUNCTION: FrameWndProc(HWND, unsigned, WORD, LONG)
//
+// PURPOSE: Processes messages for the main window.
//
LRESULT CALLBACK FrameWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
- switch (message) {
- case WM_CREATE:
- break;
- case WM_COMMAND:
- if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
- return DefWindowProc(hWnd, message, wParam, lParam);
- }
+ switch (message) {
+ case WM_CREATE:
+ SetTimer(hWnd, 0, 200, NULL); // refresh display all 200 ms
+ SetScrollRange(hWnd, SB_VERT, 1, MAX_ZOOM, FALSE);
+ SetZoom(hWnd, s_factor);
+ break;
+
+ case WM_COMMAND:
+ if (!_CmdWndProc(hWnd, message, wParam, lParam)) {
+ return DefWindowProc(hWnd, message, wParam, lParam);
+ }
break;
- case WM_SIZE:
- break;
- case WM_TIMER:
- break;
- case WM_DESTROY:
- PostQuitMessage(0);
- default:
- return DefWindowProc(hWnd, message, wParam, lParam);
+
+ case WM_PAINT: {
+ PAINTSTRUCT ps;
+ HDC hdcMem;
+ RECT clnt;
+ SIZE size;
+
+ BeginPaint(hWnd, &ps);
+ hdcMem = GetDC(GetDesktopWindow());
+
+ GetClientRect(hWnd, &clnt);
+ size.cx = (clnt.right + s_factor-1) / s_factor;
+ size.cy = (clnt.bottom + s_factor-1) / s_factor;
+
+ StretchBlt(ps.hdc, 0, 0, size.cx*s_factor, size.cy*s_factor,
+ hdcMem, s_srcPos.x, s_srcPos.y, size.cx, size.cy, SRCCOPY);
+
+ ReleaseDC(GetDesktopWindow(), hdcMem);
+ EndPaint(hWnd, &ps);
+ break;}
+
+ case WM_TIMER:
+ if (s_dragging && GetCapture()==hWnd) {
+ RECT clnt, rect;
+
+ int width = GetSystemMetrics(SM_CXSCREEN);
+ int height = GetSystemMetrics(SM_CYSCREEN);
+
+ GetCursorPos(&s_srcPos);
+
+ GetClientRect(hWnd, &clnt);
+
+ s_srcPos.x -= clnt.right / s_factor / 2;
+ s_srcPos.y -= clnt.bottom / s_factor / 2;
+
+ if (s_srcPos.x < 0)
+ s_srcPos.x = 0;
+ else if (s_srcPos.x+clnt.right/s_factor > width)
+ s_srcPos.x = width - clnt.right/s_factor;
+
+ if (s_srcPos.y < 0)
+ s_srcPos.y = 0;
+ else if (s_srcPos.y+clnt.bottom/s_factor > height)
+ s_srcPos.y = height - clnt.bottom/s_factor;
+
+ if (memcmp(&rect, &s_lastSrc, sizeof(RECT))) {
+ HDC hdc = GetDC(0);
+
+ if (s_lastSrc.bottom != -1)
+ DrawFocusRect(hdc, &s_lastSrc);
+
+ rect.left = s_srcPos.x - 1;
+ rect.top = s_srcPos.y - 1;
+ rect.right = rect.left + clnt.right/s_factor + 2;
+ rect.bottom = rect.top + clnt.bottom/s_factor + 2;
+ DrawFocusRect(hdc, &rect);
+
+ ReleaseDC(0, hdc);
+
+ s_lastSrc = rect;
+ }
+ }
+
+ InvalidateRect(hWnd, NULL, FALSE);
+ UpdateWindow(hWnd);
+ break;
+
+ case WM_LBUTTONDOWN:
+ s_dragging = TRUE;
+ SetCapture(hWnd);
+ break;
+
+ case WM_LBUTTONUP:
+ case WM_CANCELMODE:
+ if (s_dragging) {
+ HDC hdc = GetDC(0);
+ DrawFocusRect(hdc, &s_lastSrc);
+ ReleaseDC(0, hdc);
+
+ s_lastSrc.bottom = -1;
+
+ s_dragging = FALSE;
+ ReleaseCapture();
+ }
+ break;
+
+ case WM_VSCROLL:
+ switch(wParam) {
+ case SB_LINEUP:
+ case SB_PAGEUP:
+ SetZoom(hWnd, s_factor-1);
+ break;
+
+ case SB_LINEDOWN:
+ case SB_PAGEDOWN:
+ SetZoom(hWnd, s_factor+1);
+ break;
+ }
+ break;
+
+ case WM_DESTROY:
+ KillTimer(hWnd, 0);
+ PostQuitMessage(0);
+ break;
+
+ default:
+ return DefWindowProc(hWnd, message, wParam, lParam);
}
+
return 0;
}
-
projects / reactos.git / blobdiff