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wordpad: Implement zooming in for print preview. 

The preview is now drawn onto it's own window rather directly onto
the client area of the top level window.  This is done to allow for
scrollbars, since the page won't usually fit in the window when zoomed in.
Refactoring was needed as a result of this, and in order to provide more
granularity for updates to avoid EM_FORMATRANGE messages being sent when
the page the same page is being displayed.
This commit is contained in:
Dylan Smith 2010-01-29 03:02:41 -05:00 committed by Alexandre Julliard
parent aaabd9f2f3
commit 0c46da86bf
20 changed files with 386 additions and 107 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
programs/wordpad/Da.rc
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@ -218,6 +218,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Forrige side"
STRING_PREVIEW_TWOPAGES, "To sider"
STRING_PREVIEW_ONEPAGE, "Én side"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Luk"
END

2
programs/wordpad/De.rc
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@ -220,6 +220,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "&Vorherige"
STRING_PREVIEW_TWOPAGES, "Zwei Seiten"
STRING_PREVIEW_ONEPAGE, "Eine Seite"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "&Schließen"
END

2
programs/wordpad/En.rc
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@ -210,6 +210,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Previous page"
STRING_PREVIEW_TWOPAGES, "Two pages"
STRING_PREVIEW_ONEPAGE, "One page"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Close"
STRING_UNITS_CM, "cm"
END

2
programs/wordpad/Fr.rc
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@ -221,6 +221,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Page précédente"
STRING_PREVIEW_TWOPAGES, "Deux pages"
STRING_PREVIEW_ONEPAGE, "Une page"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Fermer"
END

2
programs/wordpad/Hu.rc
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@ -218,6 +218,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Previous page"
STRING_PREVIEW_TWOPAGES, "Two pages"
STRING_PREVIEW_ONEPAGE, "One page"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Close"
END

2
programs/wordpad/Ja.rc
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@ -221,6 +221,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "前のページ"
STRING_PREVIEW_TWOPAGES, "2ページ"
STRING_PREVIEW_ONEPAGE, "1ページ"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "閉じる"
END

2
programs/wordpad/Ko.rc
View File

@ -212,6 +212,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "이전 페이지"
STRING_PREVIEW_TWOPAGES, "두 페이지"
STRING_PREVIEW_ONEPAGE, "한 페이지"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "닫기"
STRING_UNITS_CM, "cm"
END

2
programs/wordpad/Lt.rc
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@ -221,6 +221,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Ankstesnis puslapis"
STRING_PREVIEW_TWOPAGES, "Du puslapiai"
STRING_PREVIEW_ONEPAGE, "Vienas puslapis"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Užverti"
END

2
programs/wordpad/Nl.rc
View File

@ -211,6 +211,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Vorige pagina"
STRING_PREVIEW_TWOPAGES, "Twee pagina's"
STRING_PREVIEW_ONEPAGE, "Een pagina"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Sluiten"
END

2
programs/wordpad/No.rc
View File

@ -220,6 +220,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Forrige side"
STRING_PREVIEW_TWOPAGES, "To sider"
STRING_PREVIEW_ONEPAGE, "Én side"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Lukk"
END

2
programs/wordpad/Pl.rc
View File

@ -219,6 +219,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Poprz. strona"
STRING_PREVIEW_TWOPAGES, "Two pages"
STRING_PREVIEW_ONEPAGE, "One page"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Zamknij"
END

2
programs/wordpad/Pt.rc
View File

@ -222,6 +222,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Página anterior"
STRING_PREVIEW_TWOPAGES, "Duas páginas"
STRING_PREVIEW_ONEPAGE, "Uma página"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Fechar"
END

2
programs/wordpad/Ru.rc
View File

@ -221,6 +221,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Предыдущая страница"
STRING_PREVIEW_TWOPAGES, "Две страницы"
STRING_PREVIEW_ONEPAGE, "Одна страница"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Закрыть"
END

2
programs/wordpad/Si.rc
View File

@ -220,6 +220,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Prejšnja"
STRING_PREVIEW_TWOPAGES, "Dve strani"
STRING_PREVIEW_ONEPAGE, "Ena stran"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Zapri"
END

2
programs/wordpad/Sv.rc
View File

@ -220,6 +220,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Föregående sida"
STRING_PREVIEW_TWOPAGES, "Två sidor"
STRING_PREVIEW_ONEPAGE, "En sida"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Stäng"
END

2
programs/wordpad/Tr.rc
View File

@ -220,6 +220,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "Previous page"
STRING_PREVIEW_TWOPAGES, "Two pages"
STRING_PREVIEW_ONEPAGE, "One page"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "Close"
END

2
programs/wordpad/Zh.rc
View File

@ -223,6 +223,8 @@ BEGIN
STRING_PREVIEW_PREVPAGE, "上一页"
STRING_PREVIEW_TWOPAGES, "双页"
STRING_PREVIEW_ONEPAGE, "单页"
STRING_PREVIEW_ZOOMIN, "Zoom in"
STRING_PREVIEW_ZOOMOUT, "Zoom out"
STRING_PREVIEW_CLOSE, "关闭"
END

423
programs/wordpad/print.c
View File

@ -33,6 +33,12 @@ typedef struct _previewinfo
HDC hdcSized;
HDC hdcSized2;
RECT window;
RECT rcPage;
SIZE bmSize;
SIZE bmScaledSize;
SIZE spacing;
float zoomratio;
int zoomlevel;
LPWSTR wszFileName;
} previewinfo, *ppreviewinfo;
@ -42,6 +48,8 @@ static HGLOBAL devNames;
static RECT margins;
static previewinfo preview;
extern const WCHAR wszPreviewWndClass[];
static const WCHAR var_pagemargin[] = {'P','a','g','e','M','a','r','g','i','n',0};
static LPWSTR get_print_file_filter(HWND hMainWnd)
@ -448,7 +456,9 @@ static void preview_bar_show(HWND hMainWnd, BOOL show)
AddTextButton(hReBar, STRING_PREVIEW_NEXTPAGE, ID_PREVIEW_NEXTPAGE, BANDID_PREVIEW_BTN2);
AddTextButton(hReBar, STRING_PREVIEW_PREVPAGE, ID_PREVIEW_PREVPAGE, BANDID_PREVIEW_BTN3);
AddTextButton(hReBar, STRING_PREVIEW_TWOPAGES, ID_PREVIEW_NUMPAGES, BANDID_PREVIEW_BTN4);
AddTextButton(hReBar, STRING_PREVIEW_CLOSE, ID_FILE_EXIT, BANDID_PREVIEW_BTN5);
AddTextButton(hReBar, STRING_PREVIEW_ZOOMIN, ID_PREVIEW_ZOOMIN, BANDID_PREVIEW_BTN5);
AddTextButton(hReBar, STRING_PREVIEW_ZOOMOUT, ID_PREVIEW_ZOOMOUT, BANDID_PREVIEW_BTN6);
AddTextButton(hReBar, STRING_PREVIEW_CLOSE, ID_FILE_EXIT, BANDID_PREVIEW_BTN7);
hStatic = CreateWindowW(WC_STATICW, NULL,
WS_VISIBLE | WS_CHILD, 0, 0, 0, 0,
@ -471,23 +481,220 @@ static void preview_bar_show(HWND hMainWnd, BOOL show)
}
}
static const int min_spacing = 10;
static void update_preview_scrollbars(HWND hwndPreview, RECT *window)
{
SCROLLINFO sbi;
sbi.cbSize = sizeof(sbi);
sbi.fMask = SIF_PAGE|SIF_RANGE;
sbi.nMin = 0;
if (preview.zoomlevel == 0)
{
/* 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)&gt, 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)
@ -669,46 +876,53 @@ static void draw_preview_page(HDC hdc, HDC* hdcSized, FORMATRANGE* lpFr, float r
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 to indicate the area printed in, but we want to
keep the original for drawing margins */
lpFr->rc = get_print_rect(lpFr->hdcTarget);
/* 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);
}
LRESULT print_preview(HWND hMainWnd)
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;
GETTEXTLENGTHEX gt;
HDC hdc;
RECT window, background;
int bmWidth, bmHeight, bmNewWidth, bmNewHeight;
float ratioWidth, ratioHeight, ratio;
int xOffset, yOffset;
int barheight;
float spacing = 10.0;
HWND hReBar = GetDlgItem(hMainWnd, IDC_REBAR);
PAINTSTRUCT ps;
HWND hMainWnd = GetParent(hwndPreview);
POINT scrollpos;
hdc = BeginPaint(hMainWnd, &ps);
GetClientRect(hMainWnd, &window);
hdc = BeginPaint(hwndPreview, &ps);
GetClientRect(hwndPreview, &window);
fr.hdcTarget = make_dc();
fr.rc = get_print_rect(fr.hdcTarget);
fr.rcPage.left = 0;
fr.rcPage.top = 0;
fr.rcPage.bottom = fr.rc.bottom + margins.bottom;
fr.rcPage.right = fr.rc.right + margins.right;
bmWidth = twips_to_pixels(fr.rcPage.right, GetDeviceCaps(hdc, LOGPIXELSX));
bmHeight = twips_to_pixels(fr.rcPage.bottom, GetDeviceCaps(hdc, LOGPIXELSY));
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);
@ -721,111 +935,113 @@ LRESULT print_preview(HWND hMainWnd)
preview.hdc2 = CreateCompatibleDC(hdc);
}
fr.hdc = preview.hdc;
gt.flags = GTL_DEFAULT;
gt.codepage = 1200;
fr.chrg.cpMin = 0;
fr.chrg.cpMax = SendMessageW(hEditorWnd, EM_GETTEXTLENGTHEX, (WPARAM)&gt, 0);
paper.left = 0;
paper.right = bmWidth;
paper.right = preview.bmSize.cx;
paper.top = 0;
paper.bottom = bmHeight;
if(!preview.pages)
preview.pages = get_num_pages(hEditorWnd, fr);
paper.bottom = preview.bmSize.cy;
fr.hdc = preview.hdc;
draw_preview(hEditorWnd, &fr, bmWidth, bmHeight, &paper, preview.page);
draw_preview(hEditorWnd, &fr, preview.bmSize.cx, preview.bmSize.cy, &paper, preview.page);
if(preview.hdc2)
{
fr.hdc = preview.hdc2;
draw_preview(hEditorWnd, &fr, bmWidth, bmHeight, &paper, preview.page + 1);
draw_preview(hEditorWnd, &fr, preview.bmSize.cx, preview.bmSize.cy, &fr.rcPage, preview.page + 1);
}
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);
update_preview_buttons(hMainWnd);
}
barheight = SendMessageW(hReBar, RB_GETBARHEIGHT, 0, 0);
ratioHeight = (window.bottom - spacing * 2 - barheight) / (float)bmHeight;
if(preview.hdc2)
ratioWidth = ((window.right - spacing * 3) / 2.0) / (float)bmWidth;
else
ratioWidth = (window.right - spacing * 2) / (float)bmWidth;
if(ratioWidth > ratioHeight)
ratio = ratioHeight;
else
ratio = ratioWidth;
bmNewWidth = (int)((float)bmWidth * ratio);
bmNewHeight = (int)((float)bmHeight * ratio);
yOffset = ((window.bottom - bmNewHeight + barheight) / 2);
if(!preview.hdc2)
xOffset = (window.right - bmNewWidth) / 2;
else
xOffset = (window.right - bmNewWidth * 2) / 3;
window.top = barheight;
FillRect(hdc, &window, GetStockObject(GRAY_BRUSH));
background.left = xOffset - 2;
background.right = xOffset + bmNewWidth + 2;
background.top = yOffset - 2;
background.bottom = yOffset + bmNewHeight + 2;
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, ratio, bmNewWidth, bmNewHeight, bmWidth, bmHeight);
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)
{
background.left += bmNewWidth + xOffset;
background.right += bmNewWidth + xOffset;
FillRect(hdc, &background, GetStockObject(BLACK_BRUSH));
draw_preview_page(preview.hdc2, &preview.hdcSized2, &fr, ratio, bmNewWidth, bmNewHeight, bmWidth, bmHeight);
draw_preview_page(preview.hdc2, &preview.hdcSized2, &fr, preview.zoomratio,
preview.bmScaledSize.cx, preview.bmScaledSize.cy,
preview.bmSize.cx, preview.bmSize.cy);
}
}
BitBlt(hdc, xOffset, yOffset, bmNewWidth, bmNewHeight, preview.hdcSized, 0, 0, SRCCOPY);
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, xOffset * 2 + bmNewWidth, yOffset, bmNewWidth, bmNewHeight, preview.hdcSized2, 0, 0, SRCCOPY);
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(hMainWnd, &ps);
EndPaint(hwndPreview, &ps);
return 0;
}
static void update_preview(HWND hWnd)
/* Update for page changes. */
static void update_preview(HWND hMainWnd)
{
RECT rc;
DeleteDC(preview.hdc);
preview.hdc = 0;
preview.window.right = 0;
update_scaled_preview(hMainWnd);
}
GetClientRect(hWnd, &rc);
rc.top += SendMessageW(GetDlgItem(hWnd, IDC_REBAR), RB_GETBARHEIGHT, 0, 0);
InvalidateRect(hWnd, &rc, TRUE);
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)
@ -849,29 +1065,38 @@ LRESULT preview_command(HWND hWnd, WPARAM wParam)
break;
case ID_PREVIEW_NUMPAGES:
{
HWND hReBar = GetDlgItem(hWnd, IDC_REBAR);
WCHAR name[MAX_STRING_LEN];
HINSTANCE hInst = GetModuleHandleW(0);
toggle_num_pages(hWnd);
break;
if(preview.hdc2)
case ID_PREVIEW_ZOOMIN:
if (preview.zoomlevel < 2)
{
DeleteDC(preview.hdc2);
preview.hdc2 = 0;
} else
{
if(preview.page == preview.pages)
preview.page--;
preview.hdc2 = (HDC)-1;
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;
LoadStringW(hInst, preview.hdc2 ? STRING_PREVIEW_ONEPAGE : STRING_PREVIEW_TWOPAGES,
name, MAX_STRING_LEN);
SetWindowTextW(GetDlgItem(hReBar, ID_PREVIEW_NUMPAGES), name);
update_preview(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);

21
programs/wordpad/wordpad.c
View File

@ -56,6 +56,9 @@ static const WCHAR wszMainWndClass[] = {'W','O','R','D','P','A','D','T','O','P',
static const WCHAR stringFormat[] = {'%','2','d','\0'};
const WCHAR wszPreviewWndClass[] = {'P','r','t','P','r','e','v','i','e','w',0};
LRESULT CALLBACK preview_proc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
static HWND hMainWnd;
static HWND hEditorWnd;
static HWND hFindWnd;
@ -2447,7 +2450,7 @@ static LRESULT OnSize( HWND hWnd, WPARAM wParam, LPARAM lParam )
{
int nStatusSize = 0;
RECT rc;
HWND hwndEditor = GetDlgItem(hWnd, IDC_EDITOR);
HWND hwndEditor = preview_isactive() ? GetDlgItem(hWnd, IDC_PREVIEW) : GetDlgItem(hWnd, IDC_EDITOR);
HWND hwndStatusBar = GetDlgItem(hWnd, IDC_STATUSBAR);
HWND hwndReBar = GetDlgItem(hWnd, IDC_REBAR);
HWND hRulerWnd = GetDlgItem(hWnd, IDC_RULER);
@ -2550,9 +2553,7 @@ static LRESULT CALLBACK WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lPara
}
break;
case WM_PAINT:
if(preview_isactive())
return print_preview(hWnd);
else
if(!preview_isactive())
return DefWindowProcW(hWnd, msg, wParam, lParam);
default:
@ -2592,6 +2593,18 @@ int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hOldInstance, LPSTR szCmdPar
wc.lpszClassName = wszMainWndClass;
RegisterClassW(&wc);
wc.style = CS_HREDRAW | CS_VREDRAW;
wc.lpfnWndProc = preview_proc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = NULL;
wc.hCursor = LoadCursor(NULL, IDC_IBEAM);
wc.hbrBackground = GetSysColorBrush(COLOR_WINDOW);
wc.lpszMenuName = NULL;
wc.lpszClassName = wszPreviewWndClass;
RegisterClassW(&wc);
registry_read_winrect(&rc);
hMainWnd = CreateWindowExW(0, wszMainWndClass, wszAppTitle, WS_CLIPCHILDREN|WS_OVERLAPPEDWINDOW,
rc.left, rc.top, rc.right-rc.left, rc.bottom-rc.top, NULL, NULL, hInstance, NULL);

15
programs/wordpad/wordpad.h
View File

@ -49,6 +49,8 @@
#define ID_PREVIEW_NEXTPAGE 1017
#define ID_PREVIEW_PREVPAGE 1018
#define ID_PREVIEW_NUMPAGES 1019
#define ID_PREVIEW_ZOOMIN 1020
#define ID_PREVIEW_ZOOMOUT 1021
#define ID_ALIGN_LEFT 1100
#define ID_ALIGN_CENTER 1101
@ -84,7 +86,7 @@
#define ID_TOGGLE_STATUSBAR 1502
#define ID_TOGGLE_RULER 1503
#define PREVIEW_BUTTONS 5
#define PREVIEW_BUTTONS 7
#define FILELIST_ENTRIES 4
#define FILELIST_ENTRY_LENGTH 33
@ -101,7 +103,9 @@
#define BANDID_PREVIEW_BTN3 8
#define BANDID_PREVIEW_BTN4 9
#define BANDID_PREVIEW_BTN5 10
#define BANDID_PREVIEW_BUFFER 11
#define BANDID_PREVIEW_BTN6 11
#define BANDID_PREVIEW_BTN7 12
#define BANDID_PREVIEW_BUFFER 13
#define ID_WORDWRAP_NONE 0
#define ID_WORDWRAP_WINDOW 1
@ -145,6 +149,7 @@
#define IDC_FONTLIST 2013
#define IDC_SIZELIST 2014
#define IDC_RULER 2015
#define IDC_PREVIEW 2016
#define IDD_DATETIME 2100
#define IDD_NEWFILE 2101
@ -187,9 +192,11 @@
#define STRING_PREVIEW_PREVPAGE 1450
#define STRING_PREVIEW_TWOPAGES 1451
#define STRING_PREVIEW_ONEPAGE 1452
#define STRING_PREVIEW_CLOSE 1453
#define STRING_PREVIEW_ZOOMIN 1453
#define STRING_PREVIEW_ZOOMOUT 1454
#define STRING_PREVIEW_CLOSE 1455
#define STRING_UNITS_CM 1454
#define STRING_UNITS_CM 1456
#define STRING_DEFAULT_FILENAME 1700
#define STRING_PROMPT_SAVE_CHANGES 1701