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https://github.com/ultimatepp/ultimatepp.git
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727 lines
17 KiB
C++
727 lines
17 KiB
C++
#include "TextDiffCtrl.h"
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namespace Upp {
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inline Color HistoryBg() { return Color(255, 255, 0); }
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TextCompareCtrl::TextCompareCtrl()
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: sbi(*this) {
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letter = Size(1, 1);
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blame_width = number_width = 0;
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number_yshift = 0;
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number_bg = WhiteGray();
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SetFrame(FieldFrame());
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AddFrame(scroll);
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SetFont(CourierZ(12), CourierZ(12));
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scroll.NoAutoHide();
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scroll.WhenScroll = THISBACK(SelfScroll);
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maxwidth = 0;
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tabsize = 4;
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cursor = anchor = Null;
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show_line_number = true;
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show_white_space = false;
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show_diff_highlight = true;
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change_paper_color = true;
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}
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int TextCompareCtrl::GetLineNo(int y, int& ii)
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{
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ii = scroll.Get().y + y / letter.cy;
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return ii >= 0 && ii < lines.GetCount() ? lines[ii].number : Null;
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}
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bool TextCompareCtrl::SetCursor(int c)
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{
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int ii = GetLine(c);
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if(ii >= 0) {
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cursor = anchor = c;
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Refresh();
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scroll.SetY(max(ii - scroll.GetReducedViewSize().cy / letter.cy / 2, 0));
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scroll.ScrollIntoY(ii);
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WhenSel();
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WhenCursor();
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return true;
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}
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cursor = anchor = Null;
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return false;
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}
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void TextCompareCtrl::DoSelection(int y, bool shift)
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{
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int ii;
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int i = GetLineNo(y, ii);
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if(!IsNull(i)) {
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if(shift)
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cursor = i;
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else
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cursor = anchor = i;
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Refresh();
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scroll.ScrollIntoY(ii);
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WhenSel();
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if(!shift)
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WhenCursor();
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}
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}
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int TextCompareCtrl::GetLine(int cursor) const
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{
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if(cursor >= 0)
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for(int i = 0; i < lines.GetCount(); i++)
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if(lines[i].number == cursor)
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return i;
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return -1;
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}
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int TextCompareCtrl::GetLine() const
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{
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return GetLine(cursor);
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}
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void TextCompareCtrl::SetLine(int ii)
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{
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if(ii >= 0)
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DoSelection((ii - scroll.Get().y) * letter.cy, false);
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}
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const TextCompareCtrl::Blame *TextCompareCtrl::GetBlame(Point p)
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{
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if(blame.GetCount() && p.x > number_width && p.x < number_width + blame_width) {
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int ii;
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GetLineNo(p.y, ii);
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if(ii >= 0 && ii < lines.GetCount()) {
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const Line& l = lines[ii];
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if(!IsNull(l.number) && l.number >= 0 && l.number <= blame.GetCount())
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return &blame[l.number - 1];
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}
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}
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return nullptr;
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}
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Image TextCompareCtrl::CursorImage(Point p, dword keyflags)
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{
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if(GetBlame(p))
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return Image::Hand();
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return Image::Arrow();
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}
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void TextCompareCtrl::LeftDown(Point pt, dword keyflags)
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{
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const Blame *b = GetBlame(pt);
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if(b) {
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WhenBlame(b->hash);
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return;
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}
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DoSelection(pt.y, keyflags & K_SHIFT);
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SetCapture();
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SetWantFocus();
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}
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void TextCompareCtrl::LeftDouble(Point pt, dword keyflags)
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{
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int ii;
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int i = GetLineNo(pt.y, ii);
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if(!IsNull(i) && !GetBlame(pt))
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WhenLeftDouble(i - 1, ii);
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}
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void TextCompareCtrl::MouseMove(Point pt, dword flags)
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{
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int bl = -1;
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if(HasCapture()) {
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DoSelection(pt.y, true);
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}
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else
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if(GetBlame(pt))
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bl = scroll.Get().y + pt.y / letter.cy;
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if(bl != blame_line) {
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blame_line = bl;
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Refresh();
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}
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}
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void Upp::TextCompareCtrl::MouseLeave()
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{
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if(blame_line >= 0) {
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blame_line = -1;
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Refresh();
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}
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}
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void TextCompareCtrl::LeftRepeat(Point pt, dword keyflags)
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{
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if(HasCapture())
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DoSelection(pt.y, true);
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}
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void TextCompareCtrl::LeftUp(Point pt, dword keyflags)
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{
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ReleaseCapture();
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}
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void Upp::TextCompareCtrl::LostFocus()
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{
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Refresh();
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}
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void TextCompareCtrl::Copy()
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{
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int sell, selh;
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if(GetSelection(sell, selh)) {
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String clip;
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for(int i = 0; i < lines.GetCount(); i++) {
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const Line& l = lines[i];
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if(l.number >= sell && l.number <= selh) {
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clip << l.text;
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#ifdef PLATFORM_WIN32
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clip << "\r\n";
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#else
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clip << "\n";
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#endif
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}
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}
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ClearClipboard();
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AppendClipboardText(clip);
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}
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}
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void TextCompareCtrl::RightDown(Point p, dword keyflags)
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{
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MenuBar b;
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b.Add(!IsNull(cursor), t_("Copy"), CtrlImg::copy(), THISBACK(Copy)).Key(K_CTRL_C);
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b.Execute();
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}
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bool TextCompareCtrl::Key(dword key, int repcnt)
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{
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Point pos = scroll, newpos = pos, page = scroll.GetPage();
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switch(key) {
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case K_CTRL_A:
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if(lines.GetCount() > 1) {
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cursor = lines[0].number;
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anchor = lines.Top().number;
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Refresh();
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}
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break;
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case K_LEFT: newpos.x--; break;
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case K_RIGHT: newpos.x++; break;
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case K_CTRL_LEFT: newpos.x -= page.x >> 1; break;
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case K_CTRL_RIGHT: newpos.x += page.x >> 1; break;
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case K_UP: newpos.y--; break;
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case K_DOWN: newpos.y++; break;
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case K_PAGEUP: newpos.y -= page.y; break;
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case K_PAGEDOWN: newpos.y += page.y; break;
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case K_HOME: newpos.x = 0; break;
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case K_END: newpos.x = maxwidth - page.x; break;
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case K_CTRL_HOME: newpos.y = 0; break;
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case K_CTRL_END: newpos.y = lines.GetCount() - page.y; break;
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case K_CTRL_C:
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Copy();
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break;
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case K_F3: {
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bool found = false;
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int i = max(pos.y + 2, 0);
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while(i < lines.GetCount() && lines[i].level)
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i++;
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while(i < lines.GetCount())
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if(lines[i++].level) {
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newpos.y = i - 2;
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found = true;
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break;
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}
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if(!found) {
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BeepExclamation();
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return true;
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}
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break;
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}
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case K_SHIFT_F3: {
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bool found = false;
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int i = min(pos.y, lines.GetCount() - 1);
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while(i > 0 && lines[i].level)
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i--;
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while(i >= 0)
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if(lines[i--].level) {
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newpos.y = i;
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found = true;
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break;
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}
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if(!found) {
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BeepExclamation();
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return true;
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}
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break;
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}
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default: return false;
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}
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if(newpos != pos)
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scroll.Set(newpos);
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return true;
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}
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int TextCompareCtrl::GetMatchLen(const wchar *s1, const wchar *s2, int len)
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{
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for(int q = 0; q < len; q++)
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if(s1[q] != s2[q])
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return q;
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return len;
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}
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bool TextCompareCtrl::LineDiff(bool left, Vector<LineEdit::Highlight>& hln, Color eq_color,
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const wchar *s1, int l1, int h1,
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const wchar *s2, int l2, int h2, int depth)
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{
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int p1 = 0;
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int p2 = 0;
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int matchlen = 0;
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int subscore = 0; // prefer matches that are not in words
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for(int pos1 = l1; pos1 < h1; pos1++)
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for(int pos2 = l2; pos2 < h2; pos2++) {
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int ml = GetMatchLen(s1 + pos1, s2 + pos2, min(h1 - pos1, h2 - pos2));
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if(ml && ml >= matchlen) {
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int l = pos1;
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int h = pos1 + matchlen;
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int sc = (l == 0 || IsAlNum(s1[l - 1]) != IsAlNum(s1[l])) +
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(h == 0 || h >= l1 || IsAlNum(s1[h - 1]) != IsAlNum(s1[h]));
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if(ml > matchlen || sc > subscore) {
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p1 = pos1;
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p2 = pos2;
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matchlen = ml;
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subscore = sc;
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}
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}
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}
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if(matchlen > 1 || matchlen && !IsAlNum(s1[p1])) {
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for(int i = 0; i < matchlen; i++)
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hln[(left ? p1 : p2) + i].paper = eq_color;
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if(++depth < 20) {
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LineDiff(left, hln, eq_color, s1, l1, p1, s2, l2, p2, depth);
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LineDiff(left, hln, eq_color, s1, p1 + matchlen, h1, s2, p2 + matchlen, h2, depth);
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}
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return true;
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}
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return false;
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}
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TextCompareCtrl::ScrollBarItems::ScrollBarItems(TextCompareCtrl& e)
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: diff(e) {
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e.scroll.y.Add(SizePos());
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Transparent();
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IgnoreMouse();
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}
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void TextCompareCtrl::ScrollBarItems::Paint(Draw& w)
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{
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diff.PaintScrollBarItems(w);
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}
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void TextCompareCtrl::PaintScrollBarItems(Draw& w)
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{
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Rect sr = scroll.y.GetSliderRect();
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for(int pass = 0; pass < 2; pass++) {
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Size isz = pass ? DiffImg::dot1().GetSize() : DiffImg::dot().GetSize();
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for(int i = 0; i < lines.GetCount(); i++)
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if(lines[i].level > 1)
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w.DrawImage(sr.CenterPoint().x - isz.cx / 2,
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sr.top + scroll.y.GetSliderPos(i) - isz.cy / 2,
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pass ? DiffImg::dot1() : DiffImg::dot());
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}
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}
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void TextCompareCtrl::Paint(Draw& draw)
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{
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Point sc = scroll.Get();
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Size offset = (Size)sc * letter;
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Size sz = GetSize();
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int lcnt = lines.GetCount();
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int first_line = offset.cy / letter.cy;
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int last_line = min(idivceil(sz.cy + offset.cy, letter.cy), lines.GetCount() - 1);
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WString test = "č"; // read text/paper colors from highlighting scheme using likely non-highlighted text
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Vector<LineEdit::Highlight> th;
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th.SetCount(2);
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th[0].ink = SColorText();
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th[0].paper = SColorPaper();
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WhenHighlight(th, test);
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Color text_color = th[0].ink;
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Color paper_color = th[0].paper;
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Color diffpaper = IsDark(paper_color) ? Magenta() : Yellow();
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Color missingpaper = IsDark(paper_color) ? Gray() : LtGray();
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int n_width = 0;
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if(show_line_number) {
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n_width = number_width;
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for(int i = first_line; i <= last_line; i++) {
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const Line& l = lines[i];
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int y = i * letter.cy - offset.cy;
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Color paper = IsNull(l.number) ? missingpaper : l.diff ? diffpaper : SColorPaper();
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Color ink = l.diff ? SRed(): SGray();
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draw.DrawRect(0, y, n_width, letter.cy, paper);
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if(!IsNull(l.number))
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draw.DrawText(0, y + number_yshift, FormatInt(l.number_diff), number_font, ink);
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draw.DrawRect(n_width - 1, y, 1, letter.cy, Gray());
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}
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}
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int blame_y = -1;
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Color blame_paper;
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String blame_qtf;
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int blame_y0 = -1;
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if(blame.GetCount()) {
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int ty = (letter.cy - blame_font.GetCy()) / 2;
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Date now = GetSysDate();
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String last_hash;
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int bli = 0;
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for(int i = first_line; i <= last_line; i++) {
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const Line& l = lines[i];
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int y = i * letter.cy - offset.cy;
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Color paper = missingpaper;
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Time tm;
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String date, author, hash, summary;
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if(!IsNull(l.number) && l.number >= 0 && l.number <= blame.GetCount()) {
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Blame& m = blame[l.number - 1];
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tm = m.time;
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date = Format("%04d-%02d-%02d ", m.time.year, m.time.month, m.time.day);
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author = m.author;
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hash = m.hash;
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summary = m.summary;
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auto h = GetHashValue(hash);
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int r = h & 15; h >>= 8;
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int g = h & 7; h >>= 8;
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int b = h & 31;
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paper = AColor(255 - r, 255 - g, 255 - b);
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}
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draw.DrawRect(n_width, y, blame_width, letter.cy, paper);
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draw.Clip(n_width, y, blame_width - 2, letter.cy);
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if(hash != last_hash)
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bli = 0;
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if(bli == 0) {
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if(i != first_line)
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draw.DrawRect(n_width, y, blame_width, 1, SLtGray());
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int age = now - (Date)tm;
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draw.DrawText(n_width, y + ty, date, blame_font, age < 14 ? SLtBlue() : age < 365 ? SBlue() : SGray());
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draw.DrawText(n_width + GetTextSize(date, blame_font).cx, y + ty, author, blame_font, SRed());
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last_hash = hash;
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blame_y0 = y;
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}
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if(bli == 1)
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draw.DrawText(n_width, y + ty, summary, blame_font);
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if(bli == 2 && hash.GetCount() > 6)
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draw.DrawText(n_width, y + ty, hash.Mid(0, 6), blame_font, SGreen());
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if(i == blame_line) {
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blame_qtf = "[g@b " + Format("%04d-%02d-%02d %02d:%02d:%02d ",
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tm.year, tm.month, tm.day,
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tm.hour, tm.minute, tm.second) +
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"[@r \1" + author + "\1&" +
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"[@k* \1" + summary + "\1]&"
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"[@g " + hash;
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blame_y = blame_y0;
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blame_paper = paper;
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}
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draw.End();
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draw.DrawRect(n_width + blame_width - 1, y, 1, letter.cy, Gray());
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bli++;
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}
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n_width += blame_width;
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}
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draw.Clip(n_width, 0, sz.cx - n_width, sz.cy);
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for(int i = first_line; i <= last_line; i++) {
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const Line& l = lines[i];
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int y = i * letter.cy - offset.cy;
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Color ink = text_color;
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Color paper = IsNull(l.number) ? missingpaper : l.diff ? diffpaper : paper_color;
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bool sel = IsSelected(i);
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if(sel) {
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ink = SColorHighlightText();
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paper = HasFocus() ? SColorHighlight() : Blend(SColorHighlight(), SColorDisabled());
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}
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WString ln = l.text.ToWString();
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if(ln.GetCount() > 20000)
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ln.Trim(20000);
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ln = ExpandTabs(ln);
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Vector<LineEdit::Highlight> hln;
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hln.SetCount(ln.GetCount() + 1);
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for(int i = 0; i < hln.GetCount(); i++) {
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LineEdit::Highlight& h = hln[i];
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h.paper = sel ? paper : diffpaper;
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h.ink = ink;
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h.chr = ln[i];
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h.font = StdFont();
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}
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bool ldiff = false;
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if(!sel) {
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WhenHighlight(hln, ln);
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for(int i = 0; i < hln.GetCount(); ++i) {
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LineEdit::Highlight& h = hln[i];
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if (change_paper_color)
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h.paper = paper;
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}
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if(show_diff_highlight) {
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WString ln_diff = l.text_diff.ToWString();
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ln_diff = ExpandTabs(ln_diff);
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if((int64)ln_diff.GetCount() * ln.GetCount() < 50000) {
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if(left)
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ldiff = LineDiff(true, hln, paper_color,
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~ln, 0, ln.GetCount(), ~ln_diff, 0, ln_diff.GetCount(), 0);
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else
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ldiff = LineDiff(false, hln, paper_color,
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~ln_diff, 0, ln_diff.GetCount(), ~ln, 0, ln.GetCount(), 0);
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}
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}
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if(show_white_space) {
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for(int i = ln.GetCount(); i >= 0; --i) {
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LineEdit::Highlight& h = hln[i];
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if (ln[i] == 0)
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continue;
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if(ln[i] == 32)
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h.paper = IsDark(paper_color) ? LtRed() : Red();
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else
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break;
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}
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}
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if(ldiff)
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paper = paper_color;
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}
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draw.DrawRect(0, y, sz.cx, letter.cy, paper); // paint the end of line
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int x = 0;
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int ii = 0;
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while(ii < hln.GetCount() - 1) {
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LineEdit::Highlight& h = hln[ii];
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int l = 1;
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while(ii + l < hln.GetCount() - 1 && hln[ii + l].paper == h.paper)
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l++;
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draw.DrawRect(n_width - offset.cx + x, y, l * letter.cx, letter.cy, h.paper);
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x += l * letter.cx;
|
|
ii += l;
|
|
}
|
|
x = 0;
|
|
ii = 0;
|
|
Vector<int> dx;
|
|
while(ii < hln.GetCount() - 1) {
|
|
Font fnt = font;
|
|
LineEdit::Highlight& h = hln[ii];
|
|
WString text;
|
|
text.Cat(h.chr);
|
|
for(;;) {
|
|
int i = ii + text.GetCount();
|
|
if(i < hln.GetCount() - 1 && hln[i].ink == h.ink && hln[i].font == h.font)
|
|
text.Cat(hln[i].chr);
|
|
else
|
|
break;
|
|
}
|
|
fnt.Bold(h.font.IsBold());
|
|
fnt.Italic(h.font.IsItalic());
|
|
fnt.Underline(h.font.IsUnderline());
|
|
dx.SetCount(text.GetCount());
|
|
dx.Set(0, letter.cx, text.GetCount());
|
|
|
|
draw.DrawText(n_width - offset.cx + x, y, text, fnt, h.ink, dx);
|
|
|
|
x += text.GetCount() * letter.cx;
|
|
ii += text.GetCount();
|
|
}
|
|
}
|
|
int lcy = lcnt * letter.cy - offset.cy;
|
|
draw.DrawRect(0, lcy, sz.cx, sz.cy - lcy, SGray());
|
|
draw.End();
|
|
draw.DrawRect(0, lcy, n_width, sz.cy - lcy, number_bg);
|
|
|
|
if(blame_y >= 0 && HasMouse()) {
|
|
RichText txt = ParseQTF(blame_qtf);
|
|
txt.ApplyZoom(GetRichTextStdScreenZoom());
|
|
int cx = clamp(txt.GetWidth(), 10, sz.cx - n_width);
|
|
int cy = txt.GetHeight(cx);
|
|
if(blame_y + cy > sz.cy)
|
|
blame_y = max(sz.cy - cy, 0);
|
|
draw.DrawRect(n_width, blame_y, cx + 2 + DPI(8), cy + 2, blame_paper);
|
|
DrawFrame(draw, n_width - 1, blame_y, cx + 2 + DPI(8), cy + 2, SLtGray());
|
|
txt.Paint(draw, n_width + DPI(4), blame_y + 1, cx);
|
|
}
|
|
}
|
|
|
|
void TextCompareCtrl::TabSize(int t)
|
|
{
|
|
tabsize = t;
|
|
UpdateWidth();
|
|
Layout();
|
|
}
|
|
|
|
void TextCompareCtrl::SetFont(Font f, Font nf)
|
|
{
|
|
font = f;
|
|
number_font = nf;
|
|
letter.cy = f.GetCy();
|
|
letter.cx = f.GetMonoWidth();
|
|
number_width = 5 * nf.GetMonoWidth();
|
|
|
|
for(int i = 0; i < font.GetHeight(); i++) {
|
|
blame_font = StdFont(font.GetHeight() - i);
|
|
if(blame_font.GetCy() <= font.GetCy())
|
|
break;
|
|
}
|
|
|
|
blame_width = GetTextSize("2025-10-10 Dear User Name", blame_font).cx;
|
|
number_yshift = (f.GetCy() - nf.GetCy() + 2) >> 1;
|
|
Layout();
|
|
}
|
|
|
|
void TextCompareCtrl::SetFont(Font f)
|
|
{
|
|
SetFont(f, GetNumberFont());
|
|
}
|
|
|
|
void TextCompareCtrl::Layout()
|
|
{
|
|
int n_width = show_line_number ? number_width : 0;
|
|
if(blame.GetCount())
|
|
n_width += Zx(8 * 40);
|
|
scroll.Set(scroll, (scroll.GetReducedViewSize() - Size(n_width, 0)) / letter, Size(maxwidth, lines.GetCount()));
|
|
Refresh();
|
|
}
|
|
|
|
void TextCompareCtrl::MouseWheel(Point pt, int zdelta, dword keyflags)
|
|
{
|
|
if(keyflags & K_SHIFT)
|
|
scroll.WheelX(zdelta);
|
|
else
|
|
scroll.WheelY(zdelta);
|
|
}
|
|
|
|
void TextCompareCtrl::HorzMouseWheel(Point pt, int zdelta, dword keyflags)
|
|
{
|
|
scroll.WheelX(zdelta);
|
|
}
|
|
|
|
void TextCompareCtrl::SetCount(int c)
|
|
{
|
|
bool rl = (c < lines.GetCount());
|
|
lines.SetCount(c);
|
|
if(rl)
|
|
UpdateWidth();
|
|
Layout();
|
|
}
|
|
|
|
void TextCompareCtrl::AddCount(int c)
|
|
{
|
|
lines.InsertN(lines.GetCount(), c);
|
|
Layout();
|
|
}
|
|
|
|
void TextCompareCtrl::Set(int line, String text, bool diff, int number, int level, String text_diff, int number_diff)
|
|
{
|
|
Line& l = lines.At(line);
|
|
int tl = MeasureLength(text.ToWString());
|
|
int lt = MeasureLength(l.text.ToWString());
|
|
bool rl = (tl < lt && lt == maxwidth);
|
|
l.number = number;
|
|
l.text = text;
|
|
l.diff = diff;
|
|
l.level = level;
|
|
l.text_diff = text_diff;
|
|
l.number_diff = number_diff;
|
|
if(rl)
|
|
UpdateWidth();
|
|
else if(tl > maxwidth) {
|
|
maxwidth = tl;
|
|
Layout();
|
|
}
|
|
}
|
|
|
|
void TextCompareCtrl::SelfScroll()
|
|
{
|
|
Refresh();
|
|
WhenScroll();
|
|
}
|
|
|
|
void TextCompareCtrl::PairScroll(TextCompareCtrl *ctrl)
|
|
{
|
|
scroll.Set(ctrl->scroll.Get());
|
|
}
|
|
|
|
void TextCompareCtrl::UpdateWidth()
|
|
{
|
|
maxwidth = 0;
|
|
for(int i = 0; i < lines.GetCount(); i++)
|
|
maxwidth = max(maxwidth, MeasureLength(lines[i].text.ToWString()));
|
|
}
|
|
|
|
int TextCompareCtrl::MeasureLength(const wchar *text) const
|
|
{
|
|
int pos = 0;
|
|
while(*text)
|
|
if(*text++ == '\t')
|
|
pos += tabsize - pos % tabsize;
|
|
else
|
|
pos++;
|
|
return pos;
|
|
}
|
|
|
|
bool TextCompareCtrl::IsSelected(int i) const
|
|
{
|
|
int sell, selh;
|
|
if(HasLine(i) && GetSelection(sell, selh)) {
|
|
i = GetNumber(i);
|
|
return i >= sell && i <= selh;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool TextCompareCtrl::GetSelection(int& l, int& h) const
|
|
{
|
|
if(IsNull(cursor)) {
|
|
l = h = -1;
|
|
return false;
|
|
}
|
|
l = min(cursor, anchor);
|
|
h = max(cursor, anchor);
|
|
return true;
|
|
}
|
|
|
|
WString TextCompareCtrl::ExpandTabs(const wchar *text) const
|
|
{
|
|
WString out;
|
|
for(wchar c; (c = *text++);)
|
|
if(c == '\t')
|
|
out.Cat(' ', tabsize - out.GetLength() % tabsize);
|
|
else
|
|
out.Cat(c);
|
|
return out;
|
|
}
|
|
|
|
Point TextCompareCtrl::GetPos() const
|
|
{
|
|
Point pos(0, 0);
|
|
int ltop = minmax(scroll.Get().y, 0, lines.GetCount() - 1);
|
|
while(ltop >= 0 && IsNull(lines[ltop].number)) {
|
|
ltop--;
|
|
pos.y++;
|
|
}
|
|
if(ltop >= 0)
|
|
pos.x = lines[ltop].number;
|
|
return pos;
|
|
}
|
|
|
|
void TextCompareCtrl::SetPos(Point pos)
|
|
{
|
|
int l = FindFieldIndex(lines, &Line::number, pos.x);
|
|
if(l < 0)
|
|
l = 0;
|
|
SetSb(l + pos.y);
|
|
}
|
|
|
|
};
|