winproc.cpp File Reference

#include "precomp.h"
#include <assert.h>

Include dependency graph for winproc.cpp:

Go to the source code of this file.

Macros
#define	SPI_GETWHEELSCROLLCHARS   0x006C
#define	MAX_RECENT_PATHNAME_DISPLAY   30

Typedefs
typedef HWND(WINAPI *	FN_HtmlHelpW) (HWND, LPCWSTR, UINT, DWORD_PTR)

Functions
static HWND	DoHtmlHelpW (HWND hwndCaller, LPCWSTR pszFile, UINT uCommand, DWORD_PTR dwData)
BOOL	zoomTo (int newZoom, int mouseX, int mouseY)

Variables
static HINSTANCE	s_hHHCTRL_OCX = NULL
static FN_HtmlHelpW	s_pHtmlHelpW = NULL
HWND	hStatusBar = NULL

Macro Definition Documentation

MAX_RECENT_PATHNAME_DISPLAY

#define MAX_RECENT_PATHNAME_DISPLAY   30

SPI_GETWHEELSCROLLCHARS

#define SPI_GETWHEELSCROLLCHARS   0x006C

Typedef Documentation

FN_HtmlHelpW

typedef HWND(WINAPI * FN_HtmlHelpW) (HWND, LPCWSTR, UINT, DWORD_PTR)

Definition at line 15 of file winproc.cpp.

Function Documentation

DoHtmlHelpW()

static HWND DoHtmlHelpW ( HWND  hwndCaller, LPCWSTR  pszFile, UINT  uCommand, DWORD_PTR  dwData  )

static

Definition at line 25 of file winproc.cpp.

{
    WCHAR szPath[MAX_PATH];
 
    if (!s_hHHCTRL_OCX && (uCommand != HH_CLOSE_ALL))
    {
        // The function loads the system library, not local
        GetSystemDirectoryW(szPath, _countof(szPath));
        wcscat(szPath, L"\\hhctrl.ocx");
        s_hHHCTRL_OCX = LoadLibraryW(szPath);
        if (s_hHHCTRL_OCX)
            s_pHtmlHelpW = (FN_HtmlHelpW)GetProcAddress(s_hHHCTRL_OCX, "HtmlHelpW");
    }
 
    if (!s_pHtmlHelpW)
        return NULL;
 
    return s_pHtmlHelpW(hwndCaller, pszFile, uCommand, dwData);
}

Referenced by CMainWindow::OnCommand(), and CMainWindow::OnDestroy().

zoomTo()

BOOL zoomTo	(	int	newZoom,
		int	mouseX,
		int	mouseY
	)

Definition at line 46 of file winproc.cpp.

{
    int x, y, w, h;
    RECT clientRectScrollbox;
    canvasWindow.GetClientRect(&clientRectScrollbox);
 
    RECT clientRectImageArea;
    ::SetRect(&clientRectImageArea, 0, 0, imageModel.GetWidth(), imageModel.GetHeight());
    Zoomed(clientRectImageArea);
 
    w = clientRectImageArea.right * newZoom / toolsModel.GetZoom();
    h = clientRectImageArea.bottom * newZoom / toolsModel.GetZoom();
    if (!w || !h)
    {
        return FALSE;
    }
    w = clientRectImageArea.right * clientRectScrollbox.right / w;
    h = clientRectImageArea.bottom * clientRectScrollbox.bottom / h;
    x = max(0, min(clientRectImageArea.right - w, mouseX - w / 2)) * newZoom / toolsModel.GetZoom();
    y = max(0, min(clientRectImageArea.bottom - h, mouseY - h / 2)) * newZoom / toolsModel.GetZoom();
 
    toolsModel.SetZoom(newZoom);
 
    canvasWindow.Invalidate(TRUE);
 
    canvasWindow.SendMessage(WM_HSCROLL, MAKEWPARAM(SB_THUMBPOSITION, x), 0);
    canvasWindow.SendMessage(WM_VSCROLL, MAKEWPARAM(SB_THUMBPOSITION, y), 0);
    return TRUE;
}

Referenced by ZoomTool::OnButtonDown(), CMainWindow::OnCommand(), CMainWindow::OnMouseWheel(), and CToolSettingsWindow::OnVScroll().

Variable Documentation

hStatusBar

HWND hStatusBar = NULL

Definition at line 20 of file winproc.cpp.

s_hHHCTRL_OCX

HINSTANCE s_hHHCTRL_OCX = NULL

static

Definition at line 17 of file winproc.cpp.

Referenced by DoHtmlHelpW(), and CMainWindow::OnDestroy().

s_pHtmlHelpW

FN_HtmlHelpW s_pHtmlHelpW = NULL

static

Definition at line 18 of file winproc.cpp.

Referenced by DoHtmlHelpW(), and CMainWindow::OnDestroy().