/****************************************************************************** * ME_PointFromCharContext * * Returns a run-relative pixel position given a run-relative character * position (character offset) */ int ME_PointFromCharContext(ME_Context *c, ME_Run *pRun, int nOffset, BOOL visual_order) { SIZE size; ME_String *mask_text = NULL; WCHAR *str; if (pRun->nFlags & MERF_GRAPHICS) { if (nOffset) ME_GetOLEObjectSize(c, pRun, &size); return nOffset != 0; } else if (pRun->nFlags & MERF_ENDPARA) { nOffset = 0; } if (pRun->para->nFlags & MEPF_COMPLEX) { int x; ScriptCPtoX( nOffset, FALSE, pRun->len, pRun->num_glyphs, pRun->clusters, pRun->vis_attrs, pRun->advances, &pRun->script_analysis, &x ); if (visual_order && pRun->script_analysis.fRTL) x = pRun->nWidth - x - 1; return x; } if (c->editor->cPasswordMask) { mask_text = ME_MakeStringR(c->editor->cPasswordMask, pRun->len); str = mask_text->szData; } else str = get_text( pRun, 0 ); ME_GetTextExtent(c, str, nOffset, pRun->style, &size); ME_DestroyString( mask_text ); return size.cx; }
/****************************************************************************** * ME_PointFromCharContext * * Returns a run-relative pixel position given a run-relative character * position (character offset) */ int ME_PointFromCharContext(ME_Context *c, ME_Run *pRun, int nOffset, BOOL visual_order) { SIZE size; ME_String *mask_text = NULL; WCHAR *str; if (pRun->nFlags & MERF_GRAPHICS) { if (nOffset) ME_GetOLEObjectSize(c, pRun, &size); return nOffset != 0; } else if (pRun->nFlags & MERF_ENDPARA) { nOffset = 0; } if (c->editor->cPasswordMask) { mask_text = ME_MakeStringR(c->editor->cPasswordMask, pRun->len); str = mask_text->szData; } else str = get_text( pRun, 0 ); ME_GetTextExtent(c, str, nOffset, pRun->style, &size); ME_DestroyString( mask_text ); return size.cx; }
/****************************************************************************** * ME_CharFromPointContext * * Returns a character position inside the run given a run-relative * pixel horizontal position. * * If closest is FALSE return the actual character * If closest is TRUE will round to the closest leading edge. * ie. if the second character is at pixel position 8 and third at 16 then for: * closest = FALSE cx = 0..7 return 0, cx = 8..15 return 1 * closest = TRUE cx = 0..3 return 0, cx = 4..11 return 1. */ int ME_CharFromPointContext(ME_Context *c, int cx, ME_Run *run, BOOL closest, BOOL visual_order) { ME_String *mask_text = NULL; WCHAR *str; int fit = 0; HGDIOBJ hOldFont; SIZE sz, sz2, sz3; if (!run->len || cx <= 0) return 0; if (run->nFlags & (MERF_TAB | MERF_ENDCELL)) { if (!closest || cx < run->nWidth / 2) return 0; return 1; } if (run->nFlags & MERF_GRAPHICS) { SIZE sz; ME_GetOLEObjectSize(c, run, &sz); if (!closest || cx < sz.cx / 2) return 0; return 1; } if (run->para->nFlags & MEPF_COMPLEX) { int cp, trailing; if (visual_order && run->script_analysis.fRTL) cx = run->nWidth - cx - 1; ScriptXtoCP( cx, run->len, run->num_glyphs, run->clusters, run->vis_attrs, run->advances, &run->script_analysis, &cp, &trailing ); TRACE("x %d cp %d trailing %d (run width %d) rtl %d log order %d\n", cx, cp, trailing, run->nWidth, run->script_analysis.fRTL, run->script_analysis.fLogicalOrder); return closest ? cp + trailing : cp; } if (c->editor->cPasswordMask) { mask_text = ME_MakeStringR( c->editor->cPasswordMask, run->len ); str = mask_text->szData; } else str = get_text( run, 0 ); hOldFont = ME_SelectStyleFont(c, run->style); GetTextExtentExPointW(c->hDC, str, run->len, cx, &fit, NULL, &sz); if (closest && fit != run->len) { GetTextExtentPoint32W(c->hDC, str, fit, &sz2); GetTextExtentPoint32W(c->hDC, str, fit + 1, &sz3); if (cx >= (sz2.cx+sz3.cx)/2) fit = fit + 1; } ME_DestroyString( mask_text ); ME_UnselectStyleFont(c, run->style, hOldFont); return fit; }
/****************************************************************************** * ME_CharFromPointContext * * Returns a character position inside the run given a run-relative * pixel horizontal position. * * If closest is FALSE return the actual character * If closest is TRUE will round to the closest leading edge. * ie. if the second character is at pixel position 8 and third at 16 then for: * closest = FALSE cx = 0..7 return 0, cx = 8..15 return 1 * closest = TRUE cx = 0..3 return 0, cx = 4..11 return 1. */ int ME_CharFromPointContext(ME_Context *c, int cx, ME_Run *run, BOOL closest, BOOL visual_order) { ME_String *mask_text = NULL; WCHAR *str; int fit = 0; HGDIOBJ hOldFont; SIZE sz, sz2, sz3; if (!run->len || cx <= 0) return 0; if (run->nFlags & (MERF_TAB | MERF_ENDCELL)) { if (!closest || cx < run->nWidth / 2) return 0; return 1; } if (run->nFlags & MERF_GRAPHICS) { SIZE sz; ME_GetOLEObjectSize(c, run, &sz); if (!closest || cx < sz.cx / 2) return 0; return 1; } if (c->editor->cPasswordMask) { mask_text = ME_MakeStringR( c->editor->cPasswordMask, run->len ); str = mask_text->szData; } else str = get_text( run, 0 ); hOldFont = ME_SelectStyleFont(c, run->style); GetTextExtentExPointW(c->hDC, str, run->len, cx, &fit, NULL, &sz); if (closest && fit != run->len) { GetTextExtentPoint32W(c->hDC, str, fit, &sz2); GetTextExtentPoint32W(c->hDC, str, fit + 1, &sz3); if (cx >= (sz2.cx+sz3.cx)/2) fit = fit + 1; } ME_DestroyString( mask_text ); ME_UnselectStyleFont(c, run->style, hOldFont); return fit; }