481 lines
15 KiB
C
481 lines
15 KiB
C
/*
|
|
* RichEdit - painting functions
|
|
*
|
|
* Copyright 2004 by Krzysztof Foltman
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* This library 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
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "editor.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(richedit);
|
|
|
|
void ME_PaintContent(ME_TextEditor *editor, HDC hDC, BOOL bOnlyNew, RECT *rcUpdate) {
|
|
ME_DisplayItem *item;
|
|
ME_Context c;
|
|
int yoffset;
|
|
|
|
editor->nSequence++;
|
|
yoffset = ME_GetYScrollPos(editor);
|
|
ME_InitContext(&c, editor, hDC);
|
|
SetBkMode(hDC, TRANSPARENT);
|
|
ME_MoveCaret(editor);
|
|
item = editor->pBuffer->pFirst->next;
|
|
c.pt.y -= yoffset;
|
|
while(item != editor->pBuffer->pLast) {
|
|
int ye;
|
|
assert(item->type == diParagraph);
|
|
ye = c.pt.y + item->member.para.nHeight;
|
|
if (!bOnlyNew || (item->member.para.nFlags & MEPF_REPAINT))
|
|
{
|
|
BOOL bPaint = (rcUpdate == NULL);
|
|
if (rcUpdate)
|
|
bPaint = c.pt.y<rcUpdate->bottom &&
|
|
c.pt.y+item->member.para.nHeight>rcUpdate->top;
|
|
if (bPaint)
|
|
{
|
|
ME_DrawParagraph(&c, item);
|
|
if (!rcUpdate || (rcUpdate->top<=c.pt.y && rcUpdate->bottom>=ye))
|
|
item->member.para.nFlags &= ~MEPF_REPAINT;
|
|
}
|
|
}
|
|
c.pt.y = ye;
|
|
item = item->member.para.next_para;
|
|
}
|
|
if (c.pt.y<c.rcView.bottom) {
|
|
RECT rc;
|
|
int xs = c.rcView.left, xe = c.rcView.right;
|
|
int ys = c.pt.y, ye = c.rcView.bottom;
|
|
|
|
if (bOnlyNew)
|
|
{
|
|
int y1 = editor->nTotalLength-yoffset, y2 = editor->nLastTotalLength-yoffset;
|
|
if (y1<y2)
|
|
ys = y1, ye = y2+1;
|
|
else
|
|
ys = ye;
|
|
}
|
|
|
|
if (rcUpdate && ys!=ye)
|
|
{
|
|
xs = rcUpdate->left, xe = rcUpdate->right;
|
|
if (rcUpdate->top > ys)
|
|
ys = rcUpdate->top;
|
|
if (rcUpdate->bottom < ye)
|
|
ye = rcUpdate->bottom;
|
|
}
|
|
|
|
rc.left = xs; /* FIXME remove if it's not necessary anymore */
|
|
rc.top = c.pt.y;
|
|
rc.right = xe;
|
|
rc.bottom = c.pt.y+1;
|
|
FillRect(hDC, &rc, (HBRUSH)GetStockObject(BLACK_BRUSH));
|
|
|
|
if (ys == c.pt.y) /* don't overwrite the top bar */
|
|
ys++;
|
|
if (ye>ys) {
|
|
rc.left = xs;
|
|
rc.top = ys;
|
|
rc.right = xe;
|
|
rc.bottom = ye;
|
|
/* this is not supposed to be gray, I know, but lets keep it gray for now for debugging purposes */
|
|
FillRect(hDC, &rc, (HBRUSH)GetStockObject(LTGRAY_BRUSH));
|
|
}
|
|
}
|
|
editor->nLastTotalLength = editor->nTotalLength;
|
|
ME_DestroyContext(&c);
|
|
}
|
|
|
|
void ME_MarkParagraphRange(ME_TextEditor *editor, ME_DisplayItem *p1,
|
|
ME_DisplayItem *p2, int nFlags)
|
|
{
|
|
ME_DisplayItem *p3;
|
|
if (p1 == p2)
|
|
{
|
|
p1->member.para.nFlags |= nFlags;
|
|
return;
|
|
}
|
|
if (p1->member.para.nCharOfs > p2->member.para.nCharOfs)
|
|
p3 = p1, p1 = p2, p2 = p3;
|
|
|
|
p1->member.para.nFlags |= nFlags;
|
|
do {
|
|
p1 = p1->member.para.next_para;
|
|
p1->member.para.nFlags |= nFlags;
|
|
} while (p1 != p2);
|
|
}
|
|
|
|
void ME_MarkOffsetRange(ME_TextEditor *editor, int from, int to, int nFlags)
|
|
{
|
|
ME_Cursor c1, c2;
|
|
ME_CursorFromCharOfs(editor, from, &c1);
|
|
ME_CursorFromCharOfs(editor, to, &c2);
|
|
|
|
ME_MarkParagraphRange(editor, ME_GetParagraph(c1.pRun), ME_GetParagraph(c2.pRun), nFlags);
|
|
}
|
|
|
|
void ME_MarkSelectionForRepaint(ME_TextEditor *editor)
|
|
{
|
|
int from, to, from2, to2, end;
|
|
|
|
end = ME_GetTextLength(editor);
|
|
ME_GetSelection(editor, &from, &to);
|
|
from2 = editor->nLastSelStart;
|
|
to2 = editor->nLastSelEnd;
|
|
if (from<from2) ME_MarkOffsetRange(editor, from, from2, MEPF_REPAINT);
|
|
if (from>from2) ME_MarkOffsetRange(editor, from2, from, MEPF_REPAINT);
|
|
if (to<to2) ME_MarkOffsetRange(editor, to, to2, MEPF_REPAINT);
|
|
if (to>to2) ME_MarkOffsetRange(editor, to2, to, MEPF_REPAINT);
|
|
|
|
editor->nLastSelStart = from;
|
|
editor->nLastSelEnd = to;
|
|
}
|
|
|
|
void ME_Repaint(ME_TextEditor *editor)
|
|
{
|
|
ME_Cursor *pCursor = &editor->pCursors[0];
|
|
ME_DisplayItem *pRun = NULL;
|
|
int nOffset = -1;
|
|
HDC hDC;
|
|
int nCharOfs = ME_CharOfsFromRunOfs(editor, pCursor->pRun, pCursor->nOffset);
|
|
|
|
ME_RunOfsFromCharOfs(editor, nCharOfs, &pRun, &nOffset);
|
|
assert(pRun == pCursor->pRun);
|
|
assert(nOffset == pCursor->nOffset);
|
|
ME_MarkSelectionForRepaint(editor);
|
|
if (ME_WrapMarkedParagraphs(editor)) {
|
|
ME_UpdateScrollBar(editor);
|
|
}
|
|
hDC = GetDC(editor->hWnd);
|
|
ME_HideCaret(editor);
|
|
ME_PaintContent(editor, hDC, TRUE, NULL);
|
|
ReleaseDC(editor->hWnd, hDC);
|
|
ME_ShowCaret(editor);
|
|
ME_EnsureVisible(editor, pCursor->pRun);
|
|
}
|
|
|
|
void ME_UpdateRepaint(ME_TextEditor *editor)
|
|
{
|
|
/*
|
|
InvalidateRect(editor->hWnd, NULL, TRUE);
|
|
*/
|
|
ME_SendOldNotify(editor, EN_CHANGE);
|
|
ME_Repaint(editor);
|
|
ME_SendOldNotify(editor, EN_UPDATE);
|
|
ME_SendSelChange(editor);
|
|
}
|
|
|
|
void ME_DrawTextWithStyle(ME_Context *c, int x, int y, LPCWSTR szText, int nChars,
|
|
ME_Style *s, int *width, int nSelFrom, int nSelTo, int ymin, int cy) {
|
|
HDC hDC = c->hDC;
|
|
HGDIOBJ hOldFont;
|
|
COLORREF rgbOld, rgbBack;
|
|
hOldFont = ME_SelectStyleFont(c->editor, hDC, s);
|
|
rgbBack = ME_GetBackColor(c->editor);
|
|
if ((s->fmt.dwMask & CFM_COLOR) && (s->fmt.dwEffects & CFE_AUTOCOLOR))
|
|
rgbOld = SetTextColor(hDC, GetSysColor(COLOR_WINDOWTEXT));
|
|
else
|
|
rgbOld = SetTextColor(hDC, s->fmt.crTextColor);
|
|
ExtTextOutW(hDC, x, y, 0, NULL, szText, nChars, NULL);
|
|
if (width) {
|
|
SIZE sz;
|
|
GetTextExtentPoint32W(hDC, szText, nChars, &sz);
|
|
*width = sz.cx;
|
|
}
|
|
if (nSelFrom < nChars && nSelTo >= 0 && nSelFrom<nSelTo)
|
|
{
|
|
SIZE sz;
|
|
if (nSelFrom < 0) nSelFrom = 0;
|
|
if (nSelTo > nChars) nSelTo = nChars;
|
|
GetTextExtentPoint32W(hDC, szText, nSelFrom, &sz);
|
|
x += sz.cx;
|
|
GetTextExtentPoint32W(hDC, szText+nSelFrom, nSelTo-nSelFrom, &sz);
|
|
PatBlt(hDC, x, ymin, sz.cx, cy, DSTINVERT);
|
|
}
|
|
SetTextColor(hDC, rgbOld);
|
|
ME_UnselectStyleFont(c->editor, hDC, s, hOldFont);
|
|
}
|
|
|
|
void ME_DebugWrite(HDC hDC, POINT *pt, WCHAR *szText) {
|
|
int align = SetTextAlign(hDC, TA_LEFT|TA_TOP);
|
|
HGDIOBJ hFont = SelectObject(hDC, GetStockObject(DEFAULT_GUI_FONT));
|
|
COLORREF color = SetTextColor(hDC, RGB(128,128,128));
|
|
TextOutW(hDC, pt->x, pt->y, szText, lstrlenW(szText));
|
|
SelectObject(hDC, hFont);
|
|
SetTextAlign(hDC, align);
|
|
SetTextColor(hDC, color);
|
|
}
|
|
|
|
void ME_DrawGraphics(ME_Context *c, int x, int y, ME_Run *run,
|
|
ME_Paragraph *para, BOOL selected) {
|
|
SIZE sz;
|
|
int xs, ys, xe, ye, h, ym, width, eyes;
|
|
ME_GetGraphicsSize(c->editor, run, &sz);
|
|
xs = run->pt.x;
|
|
ys = y-sz.cy;
|
|
xe = xs+sz.cx;
|
|
ye = y;
|
|
h = ye-ys;
|
|
ym = ys+h/4;
|
|
width = sz.cx;
|
|
eyes = width/8;
|
|
/* draw a smiling face :) */
|
|
Ellipse(c->hDC, xs, ys, xe, ye);
|
|
Ellipse(c->hDC, xs+width/8, ym, x+width/8+eyes, ym+eyes);
|
|
Ellipse(c->hDC, xs+7*width/8-eyes, ym, xs+7*width/8, ym+eyes);
|
|
MoveToEx(c->hDC, xs+width/8, ys+3*h/4-eyes, NULL);
|
|
LineTo(c->hDC, xs+width/8, ys+3*h/4);
|
|
LineTo(c->hDC, xs+7*width/8, ys+3*h/4);
|
|
LineTo(c->hDC, xs+7*width/8, ys+3*h/4-eyes);
|
|
if (selected)
|
|
{
|
|
/* descent is usually (always?) 0 for graphics */
|
|
PatBlt(c->hDC, x, y-run->nAscent, sz.cx, run->nAscent+run->nDescent, DSTINVERT);
|
|
}
|
|
}
|
|
|
|
void ME_DrawRun(ME_Context *c, int x, int y, ME_DisplayItem *rundi, ME_Paragraph *para) {
|
|
ME_Run *run = &rundi->member.run;
|
|
int runofs = run->nCharOfs+para->nCharOfs;
|
|
|
|
/* you can always comment it out if you need visible paragraph marks */
|
|
if (run->nFlags & MERF_ENDPARA)
|
|
return;
|
|
if (run->nFlags & MERF_GRAPHICS) {
|
|
int blfrom, blto;
|
|
ME_GetSelection(c->editor, &blfrom, &blto);
|
|
ME_DrawGraphics(c, x, y, run, para, (runofs >= blfrom) && (runofs < blto));
|
|
} else
|
|
{
|
|
int blfrom, blto;
|
|
ME_DisplayItem *start = ME_FindItemBack(rundi, diStartRow);
|
|
ME_GetSelection(c->editor, &blfrom, &blto);
|
|
|
|
ME_DrawTextWithStyle(c, x, y,
|
|
run->strText->szData, ME_StrVLen(run->strText), run->style, NULL,
|
|
blfrom-runofs, blto-runofs, c->pt.y+start->member.row.nYPos, start->member.row.nHeight);
|
|
}
|
|
}
|
|
|
|
COLORREF ME_GetBackColor(ME_TextEditor *editor)
|
|
{
|
|
/* Looks like I was seriously confused
|
|
return GetSysColor((GetWindowLong(editor->hWnd, GWL_STYLE) & ES_READONLY) ? COLOR_3DFACE: COLOR_WINDOW);
|
|
*/
|
|
if (editor->rgbBackColor == -1)
|
|
return GetSysColor(COLOR_WINDOW);
|
|
else
|
|
return editor->rgbBackColor;
|
|
}
|
|
|
|
void ME_DrawParagraph(ME_Context *c, ME_DisplayItem *paragraph) {
|
|
int align = SetTextAlign(c->hDC, TA_BASELINE);
|
|
ME_DisplayItem *p;
|
|
ME_Run *run;
|
|
ME_Paragraph *para = NULL;
|
|
RECT rc, rcPara;
|
|
int y = c->pt.y;
|
|
int height = 0, baseline = 0, no=0, pno = 0;
|
|
int xs, xe;
|
|
int visible = 0;
|
|
int nMargWidth = 0;
|
|
|
|
c->pt.x = c->rcView.left;
|
|
rcPara.left = c->rcView.left;
|
|
rcPara.right = c->rcView.right;
|
|
for (p = paragraph; p!=paragraph->member.para.next_para; p = p->next) {
|
|
switch(p->type) {
|
|
case diParagraph:
|
|
para = &p->member.para;
|
|
break;
|
|
case diStartRow:
|
|
assert(para);
|
|
nMargWidth = (pno==0?para->nFirstMargin:para->nLeftMargin);
|
|
xs = c->rcView.left+nMargWidth;
|
|
xe = c->rcView.right-para->nRightMargin;
|
|
y += height;
|
|
rcPara.top = y;
|
|
rcPara.bottom = y+p->member.row.nHeight;
|
|
visible = RectVisible(c->hDC, &rcPara);
|
|
if (visible) {
|
|
HBRUSH hbr;
|
|
/* left margin */
|
|
rc.left = c->rcView.left;
|
|
rc.right = c->rcView.left+nMargWidth;
|
|
rc.top = y;
|
|
rc.bottom = y+p->member.row.nHeight;
|
|
FillRect(c->hDC, &rc, c->hbrMargin);
|
|
/* right margin */
|
|
rc.left = xe;
|
|
rc.right = c->rcView.right;
|
|
FillRect(c->hDC, &rc, c->hbrMargin);
|
|
rc.left = c->rcView.left+para->nLeftMargin;
|
|
rc.right = xe;
|
|
hbr = CreateSolidBrush(ME_GetBackColor(c->editor));
|
|
FillRect(c->hDC, &rc, hbr);
|
|
DeleteObject(hbr);
|
|
}
|
|
if (me_debug)
|
|
{
|
|
const WCHAR wszRowDebug[] = {'r','o','w','[','%','d',']',0};
|
|
WCHAR buf[128];
|
|
POINT pt = c->pt;
|
|
wsprintfW(buf, wszRowDebug, no);
|
|
pt.y = 12+y;
|
|
ME_DebugWrite(c->hDC, &pt, buf);
|
|
}
|
|
|
|
height = p->member.row.nHeight;
|
|
baseline = p->member.row.nBaseline;
|
|
pno++;
|
|
break;
|
|
case diRun:
|
|
assert(para);
|
|
run = &p->member.run;
|
|
if (visible && me_debug) {
|
|
rc.left = c->rcView.left+run->pt.x;
|
|
rc.right = c->rcView.left+run->pt.x+run->nWidth;
|
|
rc.top = c->pt.y+run->pt.y;
|
|
rc.bottom = c->pt.y+run->pt.y+height;
|
|
TRACE("rc = (%ld, %ld, %ld, %ld)\n", rc.left, rc.top, rc.right, rc.bottom);
|
|
if (run->nFlags & MERF_SKIPPED)
|
|
DrawFocusRect(c->hDC, &rc);
|
|
else
|
|
FrameRect(c->hDC, &rc, GetSysColorBrush(COLOR_GRAYTEXT));
|
|
}
|
|
if (visible)
|
|
ME_DrawRun(c, run->pt.x, c->pt.y+run->pt.y+baseline, p, ¶graph->member.para);
|
|
if (me_debug)
|
|
{
|
|
/* I'm using %ls, hope wsprintfW is not going to use wrong (4-byte) WCHAR version */
|
|
const WCHAR wszRunDebug[] = {'[','%','d',':','%','x',']',' ','%','l','s',0};
|
|
WCHAR buf[2560];
|
|
POINT pt;
|
|
pt.x = run->pt.x;
|
|
pt.y = c->pt.y + run->pt.y;
|
|
wsprintfW(buf, wszRunDebug, no, p->member.run.nFlags, p->member.run.strText->szData);
|
|
ME_DebugWrite(c->hDC, &pt, buf);
|
|
}
|
|
/* c->pt.x += p->member.run.nWidth; */
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
no++;
|
|
}
|
|
SetTextAlign(c->hDC, align);
|
|
}
|
|
|
|
void ME_Scroll(ME_TextEditor *editor, int cx, int cy)
|
|
{
|
|
SCROLLINFO si;
|
|
HWND hWnd = editor->hWnd;
|
|
|
|
si.cbSize = sizeof(SCROLLINFO);
|
|
si.fMask = SIF_POS;
|
|
GetScrollInfo(hWnd, SB_VERT, &si);
|
|
si.nPos = editor->nScrollPosY -= cy;
|
|
SetScrollInfo(hWnd, SB_VERT, &si, TRUE);
|
|
if (abs(cy) > editor->sizeWindow.cy)
|
|
InvalidateRect(editor->hWnd, NULL, TRUE);
|
|
else
|
|
ScrollWindowEx(hWnd, cx, cy, NULL, NULL, NULL, NULL, SW_ERASE|SW_INVALIDATE);
|
|
}
|
|
|
|
void ME_UpdateScrollBar(ME_TextEditor *editor)
|
|
{
|
|
HWND hWnd = editor->hWnd;
|
|
SCROLLINFO si;
|
|
int nOldLen = editor->nTotalLength;
|
|
BOOL bScrollY = (editor->nTotalLength > editor->sizeWindow.cy);
|
|
BOOL bUpdateScrollBars;
|
|
si.cbSize = sizeof(si);
|
|
si.fMask = SIF_POS | SIF_RANGE;
|
|
GetScrollInfo(hWnd, SB_VERT, &si);
|
|
bUpdateScrollBars = (bScrollY || editor->bScrollY)&& ((si.nMax != nOldLen) || (si.nPage != editor->sizeWindow.cy));
|
|
|
|
if (bScrollY != editor->bScrollY)
|
|
{
|
|
si.fMask = SIF_RANGE | SIF_PAGE;
|
|
si.nMin = 0;
|
|
si.nPage = editor->sizeWindow.cy;
|
|
if (bScrollY) {
|
|
si.nMax = editor->nTotalLength;
|
|
} else {
|
|
si.nMax = 0;
|
|
}
|
|
SetScrollInfo(hWnd, SB_VERT, &si, FALSE);
|
|
ME_MarkAllForWrapping(editor);
|
|
editor->bScrollY = bScrollY;
|
|
ME_WrapMarkedParagraphs(editor);
|
|
bUpdateScrollBars = TRUE;
|
|
}
|
|
if (bUpdateScrollBars) {
|
|
int nScroll = 0;
|
|
si.fMask = SIF_PAGE | SIF_RANGE | SIF_POS;
|
|
if (editor->nTotalLength > editor->sizeWindow.cy) {
|
|
si.nMax = editor->nTotalLength;
|
|
si.nPage = editor->sizeWindow.cy;
|
|
if (si.nPos > si.nMax-si.nPage) {
|
|
nScroll = (si.nMax-si.nPage)-si.nPos;
|
|
si.nPos = si.nMax-si.nPage;
|
|
}
|
|
}
|
|
else {
|
|
si.nMax = 0;
|
|
si.nPage = 0;
|
|
si.nPos = 0;
|
|
}
|
|
TRACE("min=%d max=%d page=%d pos=%d shift=%d\n", si.nMin, si.nMax, si.nPage, si.nPos, nScroll);
|
|
editor->nScrollPosY = si.nPos;
|
|
SetScrollInfo(hWnd, SB_VERT, &si, TRUE);
|
|
if (nScroll)
|
|
ScrollWindow(hWnd, 0, -nScroll, NULL, NULL);
|
|
}
|
|
}
|
|
|
|
int ME_GetYScrollPos(ME_TextEditor *editor)
|
|
{
|
|
return editor->nScrollPosY;
|
|
}
|
|
|
|
void ME_EnsureVisible(ME_TextEditor *editor, ME_DisplayItem *pRun)
|
|
{
|
|
ME_DisplayItem *pRow = ME_FindItemBack(pRun, diStartRow);
|
|
ME_DisplayItem *pPara = ME_FindItemBack(pRun, diParagraph);
|
|
int y, yrel, yheight, yold;
|
|
HWND hWnd = editor->hWnd;
|
|
|
|
assert(pRow);
|
|
assert(pPara);
|
|
|
|
y = pPara->member.para.nYPos+pRow->member.row.nYPos;
|
|
yheight = pRow->member.row.nHeight;
|
|
yold = ME_GetYScrollPos(editor);
|
|
yrel = y - yold;
|
|
if (yrel < 0) {
|
|
editor->nScrollPosY = y;
|
|
SetScrollPos(hWnd, SB_VERT, y, TRUE);
|
|
ScrollWindow(hWnd, 0, -yrel, NULL, NULL);
|
|
UpdateWindow(hWnd);
|
|
} else if (yrel + yheight > editor->sizeWindow.cy) {
|
|
int newy = y+yheight-editor->sizeWindow.cy;
|
|
editor->nScrollPosY = newy;
|
|
SetScrollPos(hWnd, SB_VERT, newy, TRUE);
|
|
ScrollWindow(hWnd, 0, -(newy-yold), NULL, NULL);
|
|
UpdateWindow(hWnd);
|
|
}
|
|
}
|