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wordpad: Get preview page character boundaries with number of pages. 

Rather than making seperate calls to EM_FORMATRANGE to get the number of
pages and the character boundaries, it would be easiest to get both
together.  The time to process EM_FORMATRANGE seems like it would take a
lot longer than the time needed to cache the character page boundaries.
This commit is contained in:
Dylan Smith 2010-02-22 03:18:06 -05:00 committed by Alexandre Julliard
parent 7451facf2f
commit b278101580
1 changed files with 24 additions and 2 deletions
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26
programs/wordpad/print.c
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@ -28,6 +28,7 @@ typedef struct _previewinfo
{
int page;
int pages;
int *pageEnds, pageCapacity;
HDC hdc;
HDC hdc2;
HDC hdcSized;
@ -249,12 +250,30 @@ static int get_num_pages(HWND hEditorWnd, FORMATRANGE fr)
int page = 0;
fr.chrg.cpMin = 0;
if (!preview.pageEnds)
{
preview.pageCapacity = 32;
preview.pageEnds = HeapAlloc(GetProcessHeap(), 0,
sizeof(int) * preview.pageCapacity);
if (!preview.pageEnds) return 0;
}
do
{
int bottom = fr.rc.bottom;
page++;
fr.chrg.cpMin = SendMessageW(hEditorWnd, EM_FORMATRANGE, FALSE,
(LPARAM)&fr);
if (page >= preview.pageCapacity)
{
int *new_buffer;
new_buffer = HeapReAlloc(GetProcessHeap(), 0, preview.pageEnds,
sizeof(int) * preview.pageCapacity * 2);
if (!new_buffer) return page;
preview.pageCapacity *= 2;
preview.pageEnds = new_buffer;
}
preview.pageEnds[page] = fr.chrg.cpMin;
page++;
fr.rc.bottom = bottom;
}
while(fr.chrg.cpMin && fr.chrg.cpMin < fr.chrg.cpMax);
@ -696,6 +715,9 @@ void close_preview(HWND hMainWnd)
preview.window.bottom = 0;
preview.page = 0;
preview.pages = 0;
HeapFree(GetProcessHeap(), 0, preview.pageEnds);
preview.pageEnds = NULL;
preview.pageCapacity = 0;
preview_bar_show(hMainWnd, FALSE);
DestroyWindow(hwndPreview);
@ -883,7 +905,7 @@ static void draw_preview(HWND hEditorWnd, FORMATRANGE* lpFr, RECT* paper, int pa
{
int bottom;
char_from_pagenum(hEditorWnd, lpFr, page);
lpFr->chrg.cpMin = page <= 1 ? 0 : preview.pageEnds[page-2];
FillRect(lpFr->hdc, paper, GetStockObject(WHITE_BRUSH));
bottom = lpFr->rc.bottom;
SendMessageW(hEditorWnd, EM_FORMATRANGE, TRUE, (LPARAM)lpFr);