Logo Search packages:      
Sourcecode: wxwindows2.4 version File versions

LineMarker.cxx

Go to the documentation of this file.
// Scintilla source code edit control
/** @file LineMarker.cxx
 ** Defines the look of a line marker in the margin .
 **/
// Copyright 1998-2003 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.

#include <string.h>

#include "Platform.h"

#include "Scintilla.h"
#include "XPM.h"
#include "LineMarker.h"

void LineMarker::RefreshColourPalette(Palette &pal, bool want) {
      pal.WantFind(fore, want);
      pal.WantFind(back, want);
      if (pxpm) {
            pxpm->RefreshColourPalette(pal, want);
      }
}

void LineMarker::SetXPM(const char *textForm) {
      delete pxpm;
      pxpm = new XPM(textForm);
      markType = SC_MARK_PIXMAP;
}

void LineMarker::SetXPM(const char * const *linesForm) {
      delete pxpm;
      pxpm = new XPM(linesForm);
      markType = SC_MARK_PIXMAP;
}

static void DrawBox(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore, ColourAllocated back) {
      PRectangle rc;
      rc.left = centreX - armSize;
      rc.top = centreY - armSize;
      rc.right = centreX + armSize + 1;
      rc.bottom = centreY + armSize + 1;
      surface->RectangleDraw(rc, back, fore);
}

static void DrawCircle(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore, ColourAllocated back) {
      PRectangle rcCircle;
      rcCircle.left = centreX - armSize;
      rcCircle.top = centreY - armSize;
      rcCircle.right = centreX + armSize + 1;
      rcCircle.bottom = centreY + armSize + 1;
      surface->Ellipse(rcCircle, back, fore);
}

static void DrawPlus(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore) {
      PRectangle rcV(centreX, centreY - armSize + 2, centreX + 1, centreY + armSize - 2 + 1);
      surface->FillRectangle(rcV, fore);
      PRectangle rcH(centreX - armSize + 2, centreY, centreX + armSize - 2 + 1, centreY+1);
      surface->FillRectangle(rcH, fore);
}

static void DrawMinus(Surface *surface, int centreX, int centreY, int armSize, ColourAllocated fore) {
      PRectangle rcH(centreX - armSize + 2, centreY, centreX + armSize - 2 + 1, centreY+1);
      surface->FillRectangle(rcH, fore);
}

void LineMarker::Draw(Surface *surface, PRectangle &rcWhole, Font &fontForCharacter) {
      if ((markType == SC_MARK_PIXMAP) && (pxpm)) {
            pxpm->Draw(surface, rcWhole);
            return;
      }
      // Restrict most shapes a bit
      PRectangle rc = rcWhole;
      rc.top++;
      rc.bottom--;
      int minDim = Platform::Minimum(rc.Width(), rc.Height());
      minDim--;   // Ensure does not go beyond edge
      int centreX = (rc.right + rc.left) / 2;
      int centreY = (rc.bottom + rc.top) / 2;
      int dimOn2 = minDim / 2;
      int dimOn4 = minDim / 4;
      int blobSize = dimOn2-1;
      int armSize = dimOn2-2;
      if (rc.Width() > (rc.Height() * 2)) {
            // Wide column is line number so move to left to try to avoid overlapping number
            centreX = rc.left + dimOn2 + 1;
      }
      if (markType == SC_MARK_ROUNDRECT) {
            PRectangle rcRounded = rc;
            rcRounded.left = rc.left + 1;
            rcRounded.right = rc.right - 1;
            surface->RoundedRectangle(rcRounded, fore.allocated, back.allocated);
      } else if (markType == SC_MARK_CIRCLE) {
            PRectangle rcCircle;
            rcCircle.left = centreX - dimOn2;
            rcCircle.top = centreY - dimOn2;
            rcCircle.right = centreX + dimOn2;
            rcCircle.bottom = centreY + dimOn2;
            surface->Ellipse(rcCircle, fore.allocated, back.allocated);
      } else if (markType == SC_MARK_ARROW) {
            Point pts[] = {
            Point(centreX - dimOn4, centreY - dimOn2),
            Point(centreX - dimOn4, centreY + dimOn2),
            Point(centreX + dimOn2 - dimOn4, centreY),
            };
            surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
                        fore.allocated, back.allocated);

      } else if (markType == SC_MARK_ARROWDOWN) {
            Point pts[] = {
            Point(centreX - dimOn2, centreY - dimOn4),
            Point(centreX + dimOn2, centreY - dimOn4),
            Point(centreX, centreY + dimOn2 - dimOn4),
            };
            surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
                        fore.allocated, back.allocated);

      } else if (markType == SC_MARK_PLUS) {
            Point pts[] = {
            Point(centreX - armSize, centreY - 1),
            Point(centreX - 1, centreY - 1),
            Point(centreX - 1, centreY - armSize),
            Point(centreX + 1, centreY - armSize),
            Point(centreX + 1, centreY - 1),
            Point(centreX + armSize, centreY -1),
            Point(centreX + armSize, centreY +1),
            Point(centreX + 1, centreY + 1),
            Point(centreX + 1, centreY + armSize),
            Point(centreX - 1, centreY + armSize),
            Point(centreX - 1, centreY + 1),
            Point(centreX - armSize, centreY + 1),
            };
            surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
                        fore.allocated, back.allocated);

      } else if (markType == SC_MARK_MINUS) {
            Point pts[] = {
            Point(centreX - armSize, centreY - 1),
            Point(centreX + armSize, centreY -1),
            Point(centreX + armSize, centreY +1),
            Point(centreX - armSize, centreY + 1),
            };
            surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
                        fore.allocated, back.allocated);

      } else if (markType == SC_MARK_SMALLRECT) {
            PRectangle rcSmall;
            rcSmall.left = rc.left + 1;
            rcSmall.top = rc.top + 2;
            rcSmall.right = rc.right - 1;
            rcSmall.bottom = rc.bottom - 2;
            surface->RectangleDraw(rcSmall, fore.allocated, back.allocated);

      } else if (markType == SC_MARK_EMPTY || markType == SC_MARK_BACKGROUND) {
            // An invisible marker so don't draw anything

      } else if (markType == SC_MARK_VLINE) {
            surface->PenColour(back.allocated);
            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, rcWhole.bottom);

      } else if (markType == SC_MARK_LCORNER) {
            surface->PenColour(back.allocated);
            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, rc.top + dimOn2);
            surface->LineTo(rc.right - 2, rc.top + dimOn2);

      } else if (markType == SC_MARK_TCORNER) {
            surface->PenColour(back.allocated);
            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, rcWhole.bottom);
            surface->MoveTo(centreX, rc.top + dimOn2);
            surface->LineTo(rc.right - 2, rc.top + dimOn2);

      } else if (markType == SC_MARK_LCORNERCURVE) {
            surface->PenColour(back.allocated);
            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, rc.top + dimOn2-3);
            surface->LineTo(centreX+3, rc.top + dimOn2);
            surface->LineTo(rc.right - 1, rc.top + dimOn2);

      } else if (markType == SC_MARK_TCORNERCURVE) {
            surface->PenColour(back.allocated);
            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, rcWhole.bottom);

            surface->MoveTo(centreX, rc.top + dimOn2-3);
            surface->LineTo(centreX+3, rc.top + dimOn2);
            surface->LineTo(rc.right - 1, rc.top + dimOn2);

      } else if (markType == SC_MARK_BOXPLUS) {
            surface->PenColour(back.allocated);
            DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);
            DrawPlus(surface, centreX, centreY, blobSize, back.allocated);

      } else if (markType == SC_MARK_BOXPLUSCONNECTED) {
            surface->PenColour(back.allocated);
            DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);
            DrawPlus(surface, centreX, centreY, blobSize, back.allocated);

            surface->MoveTo(centreX, centreY + blobSize);
            surface->LineTo(centreX, rcWhole.bottom);

            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, centreY - blobSize);

      } else if (markType == SC_MARK_BOXMINUS) {
            surface->PenColour(back.allocated);
            DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);
            DrawMinus(surface, centreX, centreY, blobSize, back.allocated);

            surface->MoveTo(centreX, centreY + blobSize);
            surface->LineTo(centreX, rcWhole.bottom);

      } else if (markType == SC_MARK_BOXMINUSCONNECTED) {
            surface->PenColour(back.allocated);
            DrawBox(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);
            DrawMinus(surface, centreX, centreY, blobSize, back.allocated);

            surface->MoveTo(centreX, centreY + blobSize);
            surface->LineTo(centreX, rcWhole.bottom);

            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, centreY - blobSize);

      } else if (markType == SC_MARK_CIRCLEPLUS) {
            DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);
            surface->PenColour(back.allocated);
            DrawPlus(surface, centreX, centreY, blobSize, back.allocated);

      } else if (markType == SC_MARK_CIRCLEPLUSCONNECTED) {
            DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);
            surface->PenColour(back.allocated);
            DrawPlus(surface, centreX, centreY, blobSize, back.allocated);

            surface->MoveTo(centreX, centreY + blobSize);
            surface->LineTo(centreX, rcWhole.bottom);

            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, centreY - blobSize);

      } else if (markType == SC_MARK_CIRCLEMINUS) {
            DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);
            surface->PenColour(back.allocated);
            DrawMinus(surface, centreX, centreY, blobSize, back.allocated);

            surface->MoveTo(centreX, centreY + blobSize);
            surface->LineTo(centreX, rcWhole.bottom);

      } else if (markType == SC_MARK_CIRCLEMINUSCONNECTED) {
            DrawCircle(surface, centreX, centreY, blobSize, fore.allocated, back.allocated);
            surface->PenColour(back.allocated);
            DrawMinus(surface, centreX, centreY, blobSize, back.allocated);

            surface->MoveTo(centreX, centreY + blobSize);
            surface->LineTo(centreX, rcWhole.bottom);

            surface->MoveTo(centreX, rcWhole.top);
            surface->LineTo(centreX, centreY - blobSize);

      } else if (markType >= SC_MARK_CHARACTER) {
            char character[1];
            character[0] = static_cast<char>(markType - SC_MARK_CHARACTER);
            int width = surface->WidthText(fontForCharacter, character, 1);
            rc.left += (rc.Width() - width) / 2;
            rc.right = rc.left + width;
            surface->DrawTextClipped(rc, fontForCharacter, rc.bottom - 2,
                  character, 1, fore.allocated, back.allocated);

      } else if (markType == SC_MARK_DOTDOTDOT) {
            int right = centreX - 6;
            for (int b=0; b<3; b++) {
                  PRectangle rcBlob(right, rc.bottom - 4, right + 2, rc.bottom-2);
                  surface->FillRectangle(rcBlob, fore.allocated);
                  right += 5;
            }
      } else if (markType == SC_MARK_ARROWS) {
            surface->PenColour(fore.allocated);
            int right = centreX - 2;
            for (int b=0; b<3; b++) {
                  surface->MoveTo(right - 4, centreY - 4);
                  surface->LineTo(right, centreY);
                  surface->LineTo(right - 5, centreY + 5);
                  right += 4;
            }
      } else { // SC_MARK_SHORTARROW
            Point pts[] = {
                  Point(centreX, centreY + dimOn2),
                  Point(centreX + dimOn2, centreY),
                  Point(centreX, centreY - dimOn2),
                  Point(centreX, centreY - dimOn4),
                  Point(centreX - dimOn4, centreY - dimOn4),
                  Point(centreX - dimOn4, centreY + dimOn4),
                  Point(centreX, centreY + dimOn4),
                  Point(centreX, centreY + dimOn2),
            };
            surface->Polygon(pts, sizeof(pts) / sizeof(pts[0]),
                        fore.allocated, back.allocated);
      }
}

Generated by  Doxygen 1.6.0   Back to index