1109 lines
32 KiB
C
1109 lines
32 KiB
C
/*
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* Wordpad implementation - Printing and print preview functions
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*
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* Copyright 2007-2008 by Alexander N. Sørnes <alex@thehandofagony.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <windows.h>
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#include <richedit.h>
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#include <commctrl.h>
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#include "wordpad.h"
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typedef struct _previewinfo
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{
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int page;
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int pages;
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HDC hdc;
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HDC hdc2;
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HDC hdcSized;
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HDC hdcSized2;
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RECT window;
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RECT rcPage;
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SIZE bmSize;
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SIZE bmScaledSize;
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SIZE spacing;
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float zoomratio;
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int zoomlevel;
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LPWSTR wszFileName;
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} previewinfo, *ppreviewinfo;
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static HGLOBAL devMode;
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static HGLOBAL devNames;
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static RECT margins;
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static previewinfo preview;
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extern const WCHAR wszPreviewWndClass[];
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static const WCHAR var_pagemargin[] = {'P','a','g','e','M','a','r','g','i','n',0};
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static LPWSTR get_print_file_filter(HWND hMainWnd)
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{
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static WCHAR wszPrintFilter[MAX_STRING_LEN*2+6+4+1];
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const WCHAR files_prn[] = {'*','.','P','R','N',0};
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const WCHAR files_all[] = {'*','.','*','\0'};
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LPWSTR p;
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HINSTANCE hInstance = GetModuleHandleW(0);
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p = wszPrintFilter;
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LoadStringW(hInstance, STRING_PRINTER_FILES_PRN, p, MAX_STRING_LEN);
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p += lstrlenW(p) + 1;
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lstrcpyW(p, files_prn);
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p += lstrlenW(p) + 1;
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LoadStringW(hInstance, STRING_ALL_FILES, p, MAX_STRING_LEN);
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p += lstrlenW(p) + 1;
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lstrcpyW(p, files_all);
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p += lstrlenW(p) + 1;
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*p = 0;
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return wszPrintFilter;
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}
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void registry_set_pagemargins(HKEY hKey)
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{
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RegSetValueExW(hKey, var_pagemargin, 0, REG_BINARY, (LPBYTE)&margins, sizeof(RECT));
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}
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void registry_read_pagemargins(HKEY hKey)
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{
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DWORD size = sizeof(RECT);
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if(!hKey || RegQueryValueExW(hKey, var_pagemargin, 0, NULL, (LPBYTE)&margins,
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&size) != ERROR_SUCCESS || size != sizeof(RECT))
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{
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margins.top = 1417;
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margins.bottom = 1417;
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margins.left = 1757;
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margins.right = 1757;
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}
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}
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static void AddTextButton(HWND hRebarWnd, UINT string, UINT command, UINT id)
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{
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REBARBANDINFOW rb;
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HINSTANCE hInstance = GetModuleHandleW(0);
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WCHAR text[MAX_STRING_LEN];
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HWND hButton;
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LoadStringW(hInstance, string, text, MAX_STRING_LEN);
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hButton = CreateWindowW(WC_BUTTONW, text,
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WS_VISIBLE | WS_CHILD, 5, 5, 100, 15,
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hRebarWnd, ULongToHandle(command), hInstance, NULL);
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rb.cbSize = REBARBANDINFOW_V6_SIZE;
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rb.fMask = RBBIM_SIZE | RBBIM_CHILDSIZE | RBBIM_STYLE | RBBIM_CHILD | RBBIM_IDEALSIZE | RBBIM_ID;
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rb.fStyle = RBBS_NOGRIPPER | RBBS_VARIABLEHEIGHT;
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rb.hwndChild = hButton;
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rb.cyChild = rb.cyMinChild = 22;
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rb.cx = rb.cxMinChild = 90;
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rb.cxIdeal = 100;
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rb.wID = id;
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SendMessageW(hRebarWnd, RB_INSERTBAND, -1, (LPARAM)&rb);
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}
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static HDC make_dc(void)
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{
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if(devNames && devMode)
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{
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LPDEVNAMES dn = GlobalLock(devNames);
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LPDEVMODEW dm = GlobalLock(devMode);
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HDC ret;
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ret = CreateDCW((LPWSTR)dn + dn->wDriverOffset,
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(LPWSTR)dn + dn->wDeviceOffset, 0, dm);
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GlobalUnlock(dn);
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GlobalUnlock(dm);
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return ret;
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} else
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{
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return 0;
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}
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}
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static LONG twips_to_centmm(int twips)
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{
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return MulDiv(twips, CENTMM_PER_INCH, TWIPS_PER_INCH);
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}
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static LONG centmm_to_twips(int mm)
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{
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return MulDiv(mm, TWIPS_PER_INCH, CENTMM_PER_INCH);
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}
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static LONG twips_to_pixels(int twips, int dpi)
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{
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return MulDiv(twips, dpi, TWIPS_PER_INCH);
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}
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static LONG devunits_to_twips(int units, int dpi)
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{
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return MulDiv(units, TWIPS_PER_INCH, dpi);
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}
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static RECT get_print_rect(HDC hdc)
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{
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RECT rc;
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int width, height;
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if(hdc)
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{
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int dpiY = GetDeviceCaps(hdc, LOGPIXELSY);
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int dpiX = GetDeviceCaps(hdc, LOGPIXELSX);
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width = devunits_to_twips(GetDeviceCaps(hdc, PHYSICALWIDTH), dpiX);
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height = devunits_to_twips(GetDeviceCaps(hdc, PHYSICALHEIGHT), dpiY);
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} else
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{
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width = centmm_to_twips(18500);
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height = centmm_to_twips(27000);
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}
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rc.left = margins.left;
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rc.right = width - margins.right;
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rc.top = margins.top;
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rc.bottom = height - margins.bottom;
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return rc;
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}
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void target_device(HWND hMainWnd, DWORD wordWrap)
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{
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HWND hEditorWnd = GetDlgItem(hMainWnd, IDC_EDITOR);
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if(wordWrap == ID_WORDWRAP_MARGIN)
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{
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int width = 0;
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LRESULT result;
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HDC hdc = make_dc();
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RECT rc = get_print_rect(hdc);
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width = rc.right - rc.left;
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if(!hdc)
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{
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HDC hMaindc = GetDC(hMainWnd);
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hdc = CreateCompatibleDC(hMaindc);
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ReleaseDC(hMainWnd, hMaindc);
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}
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result = SendMessageW(hEditorWnd, EM_SETTARGETDEVICE, (WPARAM)hdc, width);
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DeleteDC(hdc);
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if (result)
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return;
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/* otherwise EM_SETTARGETDEVICE failed, so fall back on wrapping
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* to window using the NULL DC. */
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}
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if (wordWrap != ID_WORDWRAP_NONE) {
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SendMessageW(hEditorWnd, EM_SETTARGETDEVICE, 0, 0);
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} else {
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SendMessageW(hEditorWnd, EM_SETTARGETDEVICE, 0, 1);
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}
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}
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static LPWSTR dialog_print_to_file(HWND hMainWnd)
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{
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OPENFILENAMEW ofn;
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static WCHAR file[MAX_PATH] = {'O','U','T','P','U','T','.','P','R','N',0};
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static const WCHAR defExt[] = {'P','R','N',0};
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static LPWSTR file_filter;
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if(!file_filter)
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file_filter = get_print_file_filter(hMainWnd);
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ZeroMemory(&ofn, sizeof(ofn));
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ofn.lStructSize = sizeof(ofn);
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ofn.Flags = OFN_PATHMUSTEXIST | OFN_HIDEREADONLY | OFN_OVERWRITEPROMPT;
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ofn.hwndOwner = hMainWnd;
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ofn.lpstrFilter = file_filter;
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ofn.lpstrFile = file;
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ofn.nMaxFile = MAX_PATH;
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ofn.lpstrDefExt = defExt;
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if(GetSaveFileNameW(&ofn))
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return file;
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else
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return FALSE;
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}
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static int get_num_pages(HWND hEditorWnd, FORMATRANGE fr)
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{
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int page = 0;
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fr.chrg.cpMin = 0;
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do
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{
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int bottom = fr.rc.bottom;
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page++;
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fr.chrg.cpMin = SendMessageW(hEditorWnd, EM_FORMATRANGE, FALSE,
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(LPARAM)&fr);
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fr.rc.bottom = bottom;
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}
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while(fr.chrg.cpMin && fr.chrg.cpMin < fr.chrg.cpMax);
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return page;
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}
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static void char_from_pagenum(HWND hEditorWnd, FORMATRANGE *fr, int page)
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{
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int i;
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fr->chrg.cpMin = 0;
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for(i = 1; i < page; i++)
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{
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int bottom = fr->rc.bottom;
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fr->chrg.cpMin = SendMessageW(hEditorWnd, EM_FORMATRANGE, FALSE, (LPARAM)fr);
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fr->rc.bottom = bottom;
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}
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}
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static HWND get_ruler_wnd(HWND hMainWnd)
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{
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return GetDlgItem(GetDlgItem(hMainWnd, IDC_REBAR), IDC_RULER);
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}
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void redraw_ruler(HWND hRulerWnd)
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{
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RECT rc;
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GetClientRect(hRulerWnd, &rc);
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InvalidateRect(hRulerWnd, &rc, TRUE);
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}
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static void update_ruler(HWND hRulerWnd)
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{
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SendMessageW(hRulerWnd, WM_USER, 0, 0);
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redraw_ruler(hRulerWnd);
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}
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static void print(LPPRINTDLGW pd, LPWSTR wszFileName)
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{
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FORMATRANGE fr;
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DOCINFOW di;
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HWND hEditorWnd = GetDlgItem(pd->hwndOwner, IDC_EDITOR);
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int printedPages = 0;
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fr.hdc = pd->hDC;
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fr.hdcTarget = pd->hDC;
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fr.rc = get_print_rect(fr.hdc);
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fr.rcPage.left = 0;
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fr.rcPage.right = fr.rc.right + margins.right;
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fr.rcPage.top = 0;
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fr.rcPage.bottom = fr.rc.bottom + margins.bottom;
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ZeroMemory(&di, sizeof(di));
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di.cbSize = sizeof(di);
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di.lpszDocName = wszFileName;
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if(pd->Flags & PD_PRINTTOFILE)
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{
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di.lpszOutput = dialog_print_to_file(pd->hwndOwner);
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if(!di.lpszOutput)
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return;
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}
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if(pd->Flags & PD_SELECTION)
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{
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SendMessageW(hEditorWnd, EM_EXGETSEL, 0, (LPARAM)&fr.chrg);
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} else
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{
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GETTEXTLENGTHEX gt;
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gt.flags = GTL_DEFAULT;
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gt.codepage = 1200;
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fr.chrg.cpMin = 0;
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fr.chrg.cpMax = SendMessageW(hEditorWnd, EM_GETTEXTLENGTHEX, (WPARAM)>, 0);
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if(pd->Flags & PD_PAGENUMS)
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char_from_pagenum(hEditorWnd, &fr, pd->nToPage);
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}
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StartDocW(fr.hdc, &di);
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do
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{
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int bottom = fr.rc.bottom;
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if(StartPage(fr.hdc) <= 0)
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break;
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fr.chrg.cpMin = SendMessageW(hEditorWnd, EM_FORMATRANGE, TRUE, (LPARAM)&fr);
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if(EndPage(fr.hdc) <= 0)
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break;
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bottom = fr.rc.bottom;
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printedPages++;
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if((pd->Flags & PD_PAGENUMS) && (printedPages > (pd->nToPage - pd->nFromPage)))
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break;
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}
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while(fr.chrg.cpMin && fr.chrg.cpMin < fr.chrg.cpMax);
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EndDoc(fr.hdc);
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SendMessageW(hEditorWnd, EM_FORMATRANGE, FALSE, 0);
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}
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void dialog_printsetup(HWND hMainWnd)
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{
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PAGESETUPDLGW ps;
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ZeroMemory(&ps, sizeof(ps));
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ps.lStructSize = sizeof(ps);
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ps.hwndOwner = hMainWnd;
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ps.Flags = PSD_INHUNDREDTHSOFMILLIMETERS | PSD_MARGINS;
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ps.rtMargin.left = twips_to_centmm(margins.left);
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ps.rtMargin.right = twips_to_centmm(margins.right);
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ps.rtMargin.top = twips_to_centmm(margins.top);
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ps.rtMargin.bottom = twips_to_centmm(margins.bottom);
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ps.hDevMode = devMode;
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ps.hDevNames = devNames;
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if(PageSetupDlgW(&ps))
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{
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margins.left = centmm_to_twips(ps.rtMargin.left);
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margins.right = centmm_to_twips(ps.rtMargin.right);
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margins.top = centmm_to_twips(ps.rtMargin.top);
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margins.bottom = centmm_to_twips(ps.rtMargin.bottom);
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devMode = ps.hDevMode;
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devNames = ps.hDevNames;
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update_ruler(get_ruler_wnd(hMainWnd));
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}
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}
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void get_default_printer_opts(void)
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{
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PRINTDLGW pd;
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ZeroMemory(&pd, sizeof(pd));
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ZeroMemory(&pd, sizeof(pd));
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pd.lStructSize = sizeof(pd);
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pd.Flags = PD_RETURNDC | PD_RETURNDEFAULT;
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pd.hDevMode = devMode;
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PrintDlgW(&pd);
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devMode = pd.hDevMode;
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devNames = pd.hDevNames;
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}
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void print_quick(LPWSTR wszFileName)
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{
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PRINTDLGW pd;
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ZeroMemory(&pd, sizeof(pd));
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pd.hDC = make_dc();
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print(&pd, wszFileName);
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}
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void dialog_print(HWND hMainWnd, LPWSTR wszFileName)
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{
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PRINTDLGW pd;
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HWND hEditorWnd = GetDlgItem(hMainWnd, IDC_EDITOR);
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int from = 0;
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int to = 0;
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ZeroMemory(&pd, sizeof(pd));
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pd.lStructSize = sizeof(pd);
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pd.hwndOwner = hMainWnd;
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pd.Flags = PD_RETURNDC | PD_USEDEVMODECOPIESANDCOLLATE;
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pd.nMinPage = 1;
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pd.nMaxPage = -1;
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pd.hDevMode = devMode;
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pd.hDevNames = devNames;
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SendMessageW(hEditorWnd, EM_GETSEL, (WPARAM)&from, (LPARAM)&to);
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if(from == to)
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pd.Flags |= PD_NOSELECTION;
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if(PrintDlgW(&pd))
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{
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devMode = pd.hDevMode;
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devNames = pd.hDevNames;
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print(&pd, wszFileName);
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update_ruler(get_ruler_wnd(hMainWnd));
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}
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}
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static void preview_bar_show(HWND hMainWnd, BOOL show)
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{
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HWND hReBar = GetDlgItem(hMainWnd, IDC_REBAR);
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int i;
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if(show)
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{
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REBARBANDINFOW rb;
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HWND hStatic;
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AddTextButton(hReBar, STRING_PREVIEW_PRINT, ID_PRINT, BANDID_PREVIEW_BTN1);
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AddTextButton(hReBar, STRING_PREVIEW_NEXTPAGE, ID_PREVIEW_NEXTPAGE, BANDID_PREVIEW_BTN2);
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AddTextButton(hReBar, STRING_PREVIEW_PREVPAGE, ID_PREVIEW_PREVPAGE, BANDID_PREVIEW_BTN3);
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AddTextButton(hReBar, STRING_PREVIEW_TWOPAGES, ID_PREVIEW_NUMPAGES, BANDID_PREVIEW_BTN4);
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AddTextButton(hReBar, STRING_PREVIEW_ZOOMIN, ID_PREVIEW_ZOOMIN, BANDID_PREVIEW_BTN5);
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AddTextButton(hReBar, STRING_PREVIEW_ZOOMOUT, ID_PREVIEW_ZOOMOUT, BANDID_PREVIEW_BTN6);
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|
AddTextButton(hReBar, STRING_PREVIEW_CLOSE, ID_FILE_EXIT, BANDID_PREVIEW_BTN7);
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hStatic = CreateWindowW(WC_STATICW, NULL,
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WS_VISIBLE | WS_CHILD, 0, 0, 0, 0,
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hReBar, NULL, NULL, NULL);
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rb.cbSize = REBARBANDINFOW_V6_SIZE;
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rb.fMask = RBBIM_SIZE | RBBIM_CHILDSIZE | RBBIM_STYLE | RBBIM_CHILD | RBBIM_IDEALSIZE | RBBIM_ID;
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rb.fStyle = RBBS_NOGRIPPER | RBBS_VARIABLEHEIGHT;
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rb.hwndChild = hStatic;
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rb.cyChild = rb.cyMinChild = 22;
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rb.cx = rb.cxMinChild = 90;
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rb.cxIdeal = 100;
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rb.wID = BANDID_PREVIEW_BUFFER;
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SendMessageW(hReBar, RB_INSERTBAND, -1, (LPARAM)&rb);
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} else
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|
{
|
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for(i = 0; i <= PREVIEW_BUTTONS; i++)
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SendMessageW(hReBar, RB_DELETEBAND, SendMessageW(hReBar, RB_IDTOINDEX, BANDID_PREVIEW_BTN1+i, 0), 0);
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}
|
|
}
|
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|
|
static const int min_spacing = 10;
|
|
|
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static void update_preview_scrollbars(HWND hwndPreview, RECT *window)
|
|
{
|
|
SCROLLINFO sbi;
|
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sbi.cbSize = sizeof(sbi);
|
|
sbi.fMask = SIF_PAGE|SIF_RANGE;
|
|
sbi.nMin = 0;
|
|
if (preview.zoomlevel == 0)
|
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{
|
|
/* Hide scrollbars when zoomed out. */
|
|
sbi.nMax = 0;
|
|
sbi.nPage = window->right;
|
|
SetScrollInfo(hwndPreview, SB_HORZ, &sbi, TRUE);
|
|
sbi.nPage = window->bottom;
|
|
SetScrollInfo(hwndPreview, SB_VERT, &sbi, TRUE);
|
|
} else {
|
|
if (!preview.hdc2)
|
|
sbi.nMax = preview.bmScaledSize.cx + min_spacing * 2;
|
|
else
|
|
sbi.nMax = preview.bmScaledSize.cx * 2 + min_spacing * 3;
|
|
sbi.nPage = window->right;
|
|
SetScrollInfo(hwndPreview, SB_HORZ, &sbi, TRUE);
|
|
/* Change in the horizontal scrollbar visibility affects the
|
|
* client rect, so update the client rect. */
|
|
GetClientRect(hwndPreview, window);
|
|
sbi.nMax = preview.bmScaledSize.cy + min_spacing * 2;
|
|
sbi.nPage = window->bottom;
|
|
SetScrollInfo(hwndPreview, SB_VERT, &sbi, TRUE);
|
|
}
|
|
}
|
|
|
|
static void update_preview_sizes(HWND hwndPreview, BOOL zoomLevelUpdated)
|
|
{
|
|
RECT window;
|
|
|
|
GetClientRect(hwndPreview, &window);
|
|
|
|
/* The zoom ratio isn't updated for partial zoom because of resizing the window. */
|
|
if (zoomLevelUpdated || preview.zoomlevel != 1)
|
|
{
|
|
float ratio, ratioHeight, ratioWidth;
|
|
if (preview.zoomlevel == 2)
|
|
{
|
|
ratio = 1.0;
|
|
} else {
|
|
ratioHeight = (window.bottom - min_spacing * 2) / (float)preview.bmSize.cy;
|
|
|
|
if(preview.hdc2)
|
|
ratioWidth = ((window.right - min_spacing * 3) / 2.0) / (float)preview.bmSize.cx;
|
|
else
|
|
ratioWidth = (window.right - min_spacing * 2) / (float)preview.bmSize.cx;
|
|
|
|
if(ratioWidth > ratioHeight)
|
|
ratio = ratioHeight;
|
|
else
|
|
ratio = ratioWidth;
|
|
|
|
if (preview.zoomlevel == 1)
|
|
ratio += (1.0 - ratio) / 2;
|
|
}
|
|
preview.zoomratio = ratio;
|
|
}
|
|
|
|
preview.bmScaledSize.cx = preview.bmSize.cx * preview.zoomratio;
|
|
preview.bmScaledSize.cy = preview.bmSize.cy * preview.zoomratio;
|
|
|
|
preview.spacing.cy = max(min_spacing, (window.bottom - preview.bmScaledSize.cy) / 2);
|
|
|
|
if(!preview.hdc2)
|
|
preview.spacing.cx = (window.right - preview.bmScaledSize.cx) / 2;
|
|
else
|
|
preview.spacing.cx = (window.right - preview.bmScaledSize.cx * 2) / 3;
|
|
if (preview.spacing.cx < min_spacing)
|
|
preview.spacing.cx = min_spacing;
|
|
|
|
update_preview_scrollbars(hwndPreview, &window);
|
|
}
|
|
|
|
/* Update for zoom ratio changes with same page. */
|
|
static void update_scaled_preview(HWND hMainWnd)
|
|
{
|
|
HWND hwndPreview = GetDlgItem(hMainWnd, IDC_PREVIEW);
|
|
preview.window.right = 0;
|
|
InvalidateRect(hwndPreview, NULL, TRUE);
|
|
}
|
|
|
|
LRESULT CALLBACK preview_proc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
switch(msg)
|
|
{
|
|
case WM_CREATE:
|
|
{
|
|
HWND hEditorWnd = GetDlgItem(GetParent(hWnd), IDC_EDITOR);
|
|
FORMATRANGE fr;
|
|
GETTEXTLENGTHEX gt = {GTL_DEFAULT, 1200};
|
|
HDC hdc = GetDC(hWnd);
|
|
HDC hdcTarget = make_dc();
|
|
|
|
fr.rc = preview.rcPage = get_print_rect(hdcTarget);
|
|
preview.rcPage.bottom += margins.bottom;
|
|
preview.rcPage.right += margins.right;
|
|
preview.rcPage.top = preview.rcPage.left = 0;
|
|
fr.rcPage = preview.rcPage;
|
|
|
|
preview.bmSize.cx = twips_to_pixels(preview.rcPage.right, GetDeviceCaps(hdc, LOGPIXELSX));
|
|
preview.bmSize.cy = twips_to_pixels(preview.rcPage.bottom, GetDeviceCaps(hdc, LOGPIXELSY));
|
|
|
|
fr.hdc = CreateCompatibleDC(hdc);
|
|
fr.hdcTarget = hdcTarget;
|
|
fr.chrg.cpMin = 0;
|
|
fr.chrg.cpMax = SendMessageW(hEditorWnd, EM_GETTEXTLENGTHEX, (WPARAM)>, 0);
|
|
preview.pages = get_num_pages(hEditorWnd, fr);
|
|
DeleteDC(fr.hdc);
|
|
|
|
update_preview_sizes(hWnd, TRUE);
|
|
break;
|
|
}
|
|
|
|
case WM_PAINT:
|
|
return print_preview(hWnd);
|
|
|
|
case WM_SIZE:
|
|
{
|
|
update_preview_sizes(hWnd, FALSE);
|
|
update_scaled_preview(hWnd);
|
|
break;
|
|
}
|
|
|
|
case WM_VSCROLL:
|
|
case WM_HSCROLL:
|
|
{
|
|
SCROLLINFO si;
|
|
RECT rc;
|
|
int nBar = (msg == WM_VSCROLL) ? SB_VERT : SB_HORZ;
|
|
int origPos;
|
|
|
|
GetClientRect(hWnd, &rc);
|
|
si.cbSize = sizeof(si);
|
|
si.fMask = SIF_ALL;
|
|
GetScrollInfo(hWnd, nBar, &si);
|
|
origPos = si.nPos;
|
|
switch(LOWORD(wParam))
|
|
{
|
|
case SB_TOP: /* == SB_LEFT */
|
|
si.nPos = si.nMin;
|
|
break;
|
|
case SB_BOTTOM: /* == SB_RIGHT */
|
|
si.nPos = si.nMax;
|
|
break;
|
|
case SB_LINEUP: /* == SB_LINELEFT */
|
|
si.nPos -= si.nPage / 10;
|
|
break;
|
|
case SB_LINEDOWN: /* == SB_LINERIGHT */
|
|
si.nPos += si.nPage / 10;
|
|
break;
|
|
case SB_PAGEUP: /* == SB_PAGELEFT */
|
|
si.nPos -= si.nPage;
|
|
break;
|
|
case SB_PAGEDOWN: /* SB_PAGERIGHT */
|
|
si.nPos += si.nPage;
|
|
break;
|
|
case SB_THUMBTRACK:
|
|
si.nPos = si.nTrackPos;
|
|
break;
|
|
}
|
|
si.fMask = SIF_POS;
|
|
SetScrollInfo(hWnd, nBar, &si, TRUE);
|
|
GetScrollInfo(hWnd, nBar, &si);
|
|
if (si.nPos != origPos)
|
|
{
|
|
int amount = origPos - si.nPos;
|
|
if (msg == WM_VSCROLL)
|
|
ScrollWindow(hWnd, 0, amount, NULL, NULL);
|
|
else
|
|
ScrollWindow(hWnd, amount, 0, NULL, NULL);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
default:
|
|
return DefWindowProcW(hWnd, msg, wParam, lParam);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void init_preview(HWND hMainWnd, LPWSTR wszFileName)
|
|
{
|
|
HWND hwndPreview;
|
|
HINSTANCE hInstance = GetModuleHandleW(0);
|
|
preview.page = 1;
|
|
preview.hdc = 0;
|
|
preview.hdc2 = 0;
|
|
preview.wszFileName = wszFileName;
|
|
preview.zoomratio = 0;
|
|
preview.zoomlevel = 0;
|
|
preview_bar_show(hMainWnd, TRUE);
|
|
|
|
hwndPreview = CreateWindowExW(0, wszPreviewWndClass, NULL,
|
|
WS_VISIBLE | WS_CHILD | WS_VSCROLL | WS_HSCROLL,
|
|
0, 0, 200, 10, hMainWnd, (HMENU)IDC_PREVIEW, hInstance, NULL);
|
|
}
|
|
|
|
void close_preview(HWND hMainWnd)
|
|
{
|
|
HWND hwndPreview = GetDlgItem(hMainWnd, IDC_PREVIEW);
|
|
preview.window.right = 0;
|
|
preview.window.bottom = 0;
|
|
preview.page = 0;
|
|
preview.pages = 0;
|
|
|
|
preview_bar_show(hMainWnd, FALSE);
|
|
DestroyWindow(hwndPreview);
|
|
}
|
|
|
|
BOOL preview_isactive(void)
|
|
{
|
|
return preview.page != 0;
|
|
}
|
|
|
|
static void add_ruler_units(HDC hdcRuler, RECT* drawRect, BOOL NewMetrics, LONG EditLeftmost)
|
|
{
|
|
static HDC hdc;
|
|
|
|
if(NewMetrics)
|
|
{
|
|
static HBITMAP hBitmap;
|
|
int i, x, y, RulerTextEnd;
|
|
int CmPixels;
|
|
int QuarterCmPixels;
|
|
HFONT hFont;
|
|
WCHAR FontName[] = {'M','S',' ','S','a','n','s',' ','S','e','r','i','f',0};
|
|
|
|
if(hdc)
|
|
{
|
|
DeleteDC(hdc);
|
|
DeleteObject(hBitmap);
|
|
}
|
|
|
|
hdc = CreateCompatibleDC(0);
|
|
|
|
CmPixels = twips_to_pixels(centmm_to_twips(1000), GetDeviceCaps(hdc, LOGPIXELSX));
|
|
QuarterCmPixels = (int)((float)CmPixels / 4.0);
|
|
|
|
hBitmap = CreateCompatibleBitmap(hdc, drawRect->right, drawRect->bottom);
|
|
SelectObject(hdc, hBitmap);
|
|
FillRect(hdc, drawRect, GetStockObject(WHITE_BRUSH));
|
|
|
|
hFont = CreateFontW(10, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, FontName);
|
|
|
|
SelectObject(hdc, hFont);
|
|
SetBkMode(hdc, TRANSPARENT);
|
|
SetTextAlign(hdc, TA_CENTER);
|
|
y = (int)(((float)drawRect->bottom - (float)drawRect->top) / 2.0) + 1;
|
|
RulerTextEnd = drawRect->right - EditLeftmost + 1;
|
|
for(i = 1, x = EditLeftmost; x < (drawRect->right - EditLeftmost + 1); i ++)
|
|
{
|
|
WCHAR str[3];
|
|
WCHAR format[] = {'%','d',0};
|
|
int x2 = x;
|
|
|
|
x2 += QuarterCmPixels;
|
|
if(x2 > RulerTextEnd)
|
|
break;
|
|
|
|
MoveToEx(hdc, x2, y, NULL);
|
|
LineTo(hdc, x2, y+2);
|
|
|
|
x2 += QuarterCmPixels;
|
|
if(x2 > RulerTextEnd)
|
|
break;
|
|
|
|
MoveToEx(hdc, x2, y - 3, NULL);
|
|
LineTo(hdc, x2, y + 3);
|
|
|
|
x2 += QuarterCmPixels;
|
|
if(x2 > RulerTextEnd)
|
|
break;
|
|
|
|
MoveToEx(hdc, x2, y, NULL);
|
|
LineTo(hdc, x2, y+2);
|
|
|
|
x += CmPixels;
|
|
if(x > RulerTextEnd)
|
|
break;
|
|
|
|
wsprintfW(str, format, i);
|
|
TextOutW(hdc, x, 5, str, lstrlenW(str));
|
|
}
|
|
DeleteObject(hFont);
|
|
}
|
|
|
|
BitBlt(hdcRuler, 0, 0, drawRect->right, drawRect->bottom, hdc, 0, 0, SRCAND);
|
|
}
|
|
|
|
static void paint_ruler(HWND hWnd, LONG EditLeftmost, BOOL NewMetrics)
|
|
{
|
|
PAINTSTRUCT ps;
|
|
HDC hdc = BeginPaint(hWnd, &ps);
|
|
HDC hdcPrint = make_dc();
|
|
RECT printRect = get_print_rect(hdcPrint);
|
|
RECT drawRect;
|
|
HBRUSH hBrush = CreateSolidBrush(GetSysColor(COLOR_MENU));
|
|
|
|
GetClientRect(hWnd, &drawRect);
|
|
FillRect(hdc, &drawRect, hBrush);
|
|
|
|
drawRect.top += 3;
|
|
drawRect.bottom -= 3;
|
|
drawRect.left = EditLeftmost;
|
|
drawRect.right = twips_to_pixels(printRect.right - margins.left, GetDeviceCaps(hdc, LOGPIXELSX));
|
|
FillRect(hdc, &drawRect, GetStockObject(WHITE_BRUSH));
|
|
|
|
drawRect.top--;
|
|
drawRect.bottom++;
|
|
DrawEdge(hdc, &drawRect, EDGE_SUNKEN, BF_RECT);
|
|
|
|
drawRect.left = drawRect.right - 1;
|
|
drawRect.right = twips_to_pixels(printRect.right + margins.right - margins.left, GetDeviceCaps(hdc, LOGPIXELSX));
|
|
DrawEdge(hdc, &drawRect, EDGE_ETCHED, BF_RECT);
|
|
|
|
drawRect.left = 0;
|
|
drawRect.top = 0;
|
|
add_ruler_units(hdc, &drawRect, NewMetrics, EditLeftmost);
|
|
|
|
SelectObject(hdc, GetStockObject(BLACK_BRUSH));
|
|
DeleteObject(hBrush);
|
|
DeleteDC(hdcPrint);
|
|
EndPaint(hWnd, &ps);
|
|
}
|
|
|
|
LRESULT CALLBACK ruler_proc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
|
|
{
|
|
static WNDPROC pPrevRulerProc;
|
|
static LONG EditLeftmost;
|
|
static BOOL NewMetrics;
|
|
|
|
switch(msg)
|
|
{
|
|
case WM_USER:
|
|
if(wParam)
|
|
{
|
|
EditLeftmost = ((POINTL*)wParam)->x;
|
|
pPrevRulerProc = (WNDPROC)lParam;
|
|
}
|
|
NewMetrics = TRUE;
|
|
break;
|
|
|
|
case WM_PAINT:
|
|
paint_ruler(hWnd, EditLeftmost, NewMetrics);
|
|
break;
|
|
|
|
default:
|
|
return CallWindowProcW(pPrevRulerProc, hWnd, msg, wParam, lParam);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void draw_preview_page(HDC hdc, HDC* hdcSized, FORMATRANGE* lpFr, float ratio, int bmNewWidth, int bmNewHeight, int bmWidth, int bmHeight)
|
|
{
|
|
HBITMAP hBitmapScaled = CreateCompatibleBitmap(hdc, bmNewWidth, bmNewHeight);
|
|
HPEN hPen;
|
|
int TopMargin = (int)((float)twips_to_pixels(lpFr->rc.top, GetDeviceCaps(hdc, LOGPIXELSX)) * ratio);
|
|
int BottomMargin = (int)((float)twips_to_pixels(lpFr->rc.bottom, GetDeviceCaps(hdc, LOGPIXELSX)) * ratio);
|
|
int LeftMargin = (int)((float)twips_to_pixels(lpFr->rc.left, GetDeviceCaps(hdc, LOGPIXELSY)) * ratio);
|
|
int RightMargin = (int)((float)twips_to_pixels(lpFr->rc.right, GetDeviceCaps(hdc, LOGPIXELSY)) * ratio);
|
|
|
|
if(*hdcSized)
|
|
DeleteDC(*hdcSized);
|
|
*hdcSized = CreateCompatibleDC(hdc);
|
|
SelectObject(*hdcSized, hBitmapScaled);
|
|
|
|
StretchBlt(*hdcSized, 0, 0, bmNewWidth, bmNewHeight, hdc, 0, 0, bmWidth, bmHeight, SRCCOPY);
|
|
|
|
/* Draw margin lines */
|
|
hPen = CreatePen(PS_DOT, 1, RGB(0,0,0));
|
|
SelectObject(*hdcSized, hPen);
|
|
|
|
MoveToEx(*hdcSized, 0, TopMargin, NULL);
|
|
LineTo(*hdcSized, bmNewWidth, TopMargin);
|
|
MoveToEx(*hdcSized, 0, BottomMargin, NULL);
|
|
LineTo(*hdcSized, bmNewWidth, BottomMargin);
|
|
|
|
MoveToEx(*hdcSized, LeftMargin, 0, NULL);
|
|
LineTo(*hdcSized, LeftMargin, bmNewHeight);
|
|
MoveToEx(*hdcSized, RightMargin, 0, NULL);
|
|
LineTo(*hdcSized, RightMargin, bmNewHeight);
|
|
|
|
}
|
|
|
|
static void draw_preview(HWND hEditorWnd, FORMATRANGE* lpFr, int bmWidth, int bmHeight, RECT* paper, int page)
|
|
{
|
|
HBITMAP hBitmapCapture = CreateCompatibleBitmap(lpFr->hdc, bmWidth, bmHeight);
|
|
int bottom;
|
|
|
|
char_from_pagenum(hEditorWnd, lpFr, page);
|
|
SelectObject(lpFr->hdc, hBitmapCapture);
|
|
FillRect(lpFr->hdc, paper, GetStockObject(WHITE_BRUSH));
|
|
bottom = lpFr->rc.bottom;
|
|
SendMessageW(hEditorWnd, EM_FORMATRANGE, TRUE, (LPARAM)lpFr);
|
|
/* EM_FORMATRANGE sets fr.rc.bottom to indicate the area printed in,
|
|
* but we want to keep the original for drawing margins */
|
|
lpFr->rc.bottom = bottom;
|
|
SendMessageW(hEditorWnd, EM_FORMATRANGE, FALSE, 0);
|
|
}
|
|
|
|
static void update_preview_buttons(HWND hMainWnd)
|
|
{
|
|
HWND hReBar = GetDlgItem(hMainWnd, IDC_REBAR);
|
|
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_PREVPAGE), preview.page > 1);
|
|
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_NEXTPAGE), preview.hdc2 ?
|
|
(preview.page + 1) < preview.pages :
|
|
preview.page < preview.pages);
|
|
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_NUMPAGES), preview.pages > 1 && preview.zoomlevel == 0);
|
|
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_ZOOMIN), preview.zoomlevel < 2);
|
|
EnableWindow(GetDlgItem(hReBar, ID_PREVIEW_ZOOMOUT), preview.zoomlevel > 0);
|
|
}
|
|
|
|
LRESULT print_preview(HWND hwndPreview)
|
|
{
|
|
FORMATRANGE fr;
|
|
HDC hdc;
|
|
RECT window, background;
|
|
PAINTSTRUCT ps;
|
|
HWND hMainWnd = GetParent(hwndPreview);
|
|
POINT scrollpos;
|
|
|
|
hdc = BeginPaint(hwndPreview, &ps);
|
|
GetClientRect(hwndPreview, &window);
|
|
|
|
fr.hdcTarget = make_dc();
|
|
fr.rc = fr.rcPage = preview.rcPage;
|
|
fr.rc.left += margins.left;
|
|
fr.rc.top += margins.top;
|
|
fr.rc.bottom -= margins.bottom;
|
|
fr.rc.right -= margins.right;
|
|
|
|
if(!preview.hdc)
|
|
{
|
|
GETTEXTLENGTHEX gt;
|
|
RECT paper;
|
|
HWND hEditorWnd = GetDlgItem(hMainWnd, IDC_EDITOR);
|
|
|
|
preview.hdc = CreateCompatibleDC(hdc);
|
|
|
|
if(preview.hdc2)
|
|
{
|
|
if(preview.hdc2 != (HDC)-1)
|
|
DeleteDC(preview.hdc2);
|
|
preview.hdc2 = CreateCompatibleDC(hdc);
|
|
}
|
|
|
|
gt.flags = GTL_DEFAULT;
|
|
gt.codepage = 1200;
|
|
fr.chrg.cpMin = 0;
|
|
fr.chrg.cpMax = SendMessageW(hEditorWnd, EM_GETTEXTLENGTHEX, (WPARAM)>, 0);
|
|
|
|
paper.left = 0;
|
|
paper.right = preview.bmSize.cx;
|
|
paper.top = 0;
|
|
paper.bottom = preview.bmSize.cy;
|
|
|
|
fr.hdc = preview.hdc;
|
|
draw_preview(hEditorWnd, &fr, preview.bmSize.cx, preview.bmSize.cy, &paper, preview.page);
|
|
|
|
if(preview.hdc2)
|
|
{
|
|
fr.hdc = preview.hdc2;
|
|
draw_preview(hEditorWnd, &fr, preview.bmSize.cx, preview.bmSize.cy, &fr.rcPage, preview.page + 1);
|
|
}
|
|
|
|
update_preview_buttons(hMainWnd);
|
|
}
|
|
|
|
FillRect(hdc, &window, GetStockObject(GRAY_BRUSH));
|
|
|
|
scrollpos.x = GetScrollPos(hwndPreview, SB_HORZ);
|
|
scrollpos.y = GetScrollPos(hwndPreview, SB_VERT);
|
|
|
|
background.left = preview.spacing.cx - 2 - scrollpos.x;
|
|
background.right = background.left + preview.bmScaledSize.cx + 4;
|
|
background.top = preview.spacing.cy - 2 - scrollpos.y;
|
|
background.bottom = background.top + preview.bmScaledSize.cy + 4;
|
|
|
|
FillRect(hdc, &background, GetStockObject(BLACK_BRUSH));
|
|
|
|
if(preview.hdc2)
|
|
{
|
|
background.left += preview.bmScaledSize.cx + preview.spacing.cx;
|
|
background.right += preview.bmScaledSize.cx + preview.spacing.cx;
|
|
|
|
FillRect(hdc, &background, GetStockObject(BLACK_BRUSH));
|
|
}
|
|
|
|
if(window.right != preview.window.right || window.bottom != preview.window.bottom)
|
|
{
|
|
draw_preview_page(preview.hdc, &preview.hdcSized, &fr, preview.zoomratio,
|
|
preview.bmScaledSize.cx, preview.bmScaledSize.cy,
|
|
preview.bmSize.cx, preview.bmSize.cy);
|
|
|
|
if(preview.hdc2)
|
|
{
|
|
draw_preview_page(preview.hdc2, &preview.hdcSized2, &fr, preview.zoomratio,
|
|
preview.bmScaledSize.cx, preview.bmScaledSize.cy,
|
|
preview.bmSize.cx, preview.bmSize.cy);
|
|
}
|
|
}
|
|
|
|
BitBlt(hdc, preview.spacing.cx - scrollpos.x, preview.spacing.cy - scrollpos.y,
|
|
preview.bmScaledSize.cx, preview.bmScaledSize.cy,
|
|
preview.hdcSized, 0, 0, SRCCOPY);
|
|
|
|
if(preview.hdc2)
|
|
{
|
|
BitBlt(hdc, preview.spacing.cx * 2 + preview.bmScaledSize.cx - scrollpos.x,
|
|
preview.spacing.cy - scrollpos.y, preview.bmScaledSize.cx,
|
|
preview.bmScaledSize.cy, preview.hdcSized2, 0, 0, SRCCOPY);
|
|
}
|
|
|
|
DeleteDC(fr.hdcTarget);
|
|
preview.window = window;
|
|
|
|
EndPaint(hwndPreview, &ps);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Update for page changes. */
|
|
static void update_preview(HWND hMainWnd)
|
|
{
|
|
DeleteDC(preview.hdc);
|
|
preview.hdc = 0;
|
|
|
|
update_scaled_preview(hMainWnd);
|
|
}
|
|
|
|
static void toggle_num_pages(HWND hMainWnd)
|
|
{
|
|
HWND hReBar = GetDlgItem(hMainWnd, IDC_REBAR);
|
|
WCHAR name[MAX_STRING_LEN];
|
|
HINSTANCE hInst = GetModuleHandleW(0);
|
|
|
|
if(preview.hdc2)
|
|
{
|
|
DeleteDC(preview.hdc2);
|
|
preview.hdc2 = 0;
|
|
} else
|
|
{
|
|
if(preview.page == preview.pages)
|
|
preview.page--;
|
|
preview.hdc2 = (HDC)-1;
|
|
}
|
|
|
|
LoadStringW(hInst, preview.hdc2 ? STRING_PREVIEW_ONEPAGE : STRING_PREVIEW_TWOPAGES,
|
|
name, MAX_STRING_LEN);
|
|
|
|
SetWindowTextW(GetDlgItem(hReBar, ID_PREVIEW_NUMPAGES), name);
|
|
update_preview_sizes(GetDlgItem(hMainWnd, IDC_PREVIEW), TRUE);
|
|
update_preview(hMainWnd);
|
|
}
|
|
|
|
LRESULT preview_command(HWND hWnd, WPARAM wParam)
|
|
{
|
|
switch(LOWORD(wParam))
|
|
{
|
|
case ID_FILE_EXIT:
|
|
PostMessageW(hWnd, WM_CLOSE, 0, 0);
|
|
break;
|
|
|
|
case ID_PREVIEW_NEXTPAGE:
|
|
case ID_PREVIEW_PREVPAGE:
|
|
{
|
|
if(LOWORD(wParam) == ID_PREVIEW_NEXTPAGE)
|
|
preview.page++;
|
|
else
|
|
preview.page--;
|
|
|
|
update_preview(hWnd);
|
|
}
|
|
break;
|
|
|
|
case ID_PREVIEW_NUMPAGES:
|
|
toggle_num_pages(hWnd);
|
|
break;
|
|
|
|
case ID_PREVIEW_ZOOMIN:
|
|
if (preview.zoomlevel < 2)
|
|
{
|
|
preview.zoomlevel++;
|
|
preview.zoomratio = 0;
|
|
if (preview.hdc2)
|
|
{
|
|
/* Forced switch to one page when zooming in. */
|
|
toggle_num_pages(hWnd);
|
|
} else {
|
|
HWND hwndPreview = GetDlgItem(hWnd, IDC_PREVIEW);
|
|
update_preview_sizes(hwndPreview, TRUE);
|
|
update_scaled_preview(hWnd);
|
|
update_preview_buttons(hWnd);
|
|
}
|
|
}
|
|
break;
|
|
|
|
case ID_PREVIEW_ZOOMOUT:
|
|
if (preview.zoomlevel > 0)
|
|
{
|
|
HWND hwndPreview = GetDlgItem(hWnd, IDC_PREVIEW);
|
|
preview.zoomlevel--;
|
|
preview.zoomratio = 0;
|
|
update_preview_sizes(hwndPreview, TRUE);
|
|
update_scaled_preview(hWnd);
|
|
update_preview_buttons(hWnd);
|
|
}
|
|
break;
|
|
|
|
case ID_PRINT:
|
|
dialog_print(hWnd, preview.wszFileName);
|
|
SendMessageW(hWnd, WM_CLOSE, 0, 0);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|