mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-15 14:16:07 -06:00
387 lines
8.7 KiB
C++
387 lines
8.7 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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{
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letter = Size(1, 1);
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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(Courier(14), Courier(10));
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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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gutter_width = 0;
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gutter_bg = Color(151, 190, 239);
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gutter_fg = SGreen;
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cursor = anchor = Null;
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gutter_capture = false;
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}
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int TextCompareCtrl::GetLineNo(int y)
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{
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int 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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void TextCompareCtrl::DoSelection(int y, bool shift)
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{
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int i = GetLineNo(y);
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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(i);
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}
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}
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void TextCompareCtrl::LeftDown(Point pt, dword keyflags)
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{
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Size sz = GetSize();
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if(pt.x > sz.cx - gutter_width || HasCapture() && gutter_capture) {
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if(!HasCapture())
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SetCapture();
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int line = (pt.y * lines.GetCount()) / sz.cy;
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int page_lines = sz.cy / letter.cy;
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scroll.SetY(line - page_lines / 2);
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gutter_capture = true;
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}
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else {
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DoSelection(pt.y, keyflags & K_SHIFT);
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SetCapture();
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gutter_capture = false;
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}
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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 i = GetLineNo(pt.y);
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if(!IsNull(i))
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WhenLeftDouble(i - 1);
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}
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void TextCompareCtrl::MouseMove(Point pt, dword flags)
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{
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if(HasCapture()) {
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if(gutter_capture)
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LeftDown(pt, flags);
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else
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DoSelection(pt.y, true);
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}
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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 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_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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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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if(gutter_width > 0)
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{
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int t = 0, b = 0;
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int gx = sz.cx - gutter_width;
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for(int i = 0; i < lcnt; i++)
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if(lines[i].level > 1) {
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b = idivceil(sz.cy * i, lcnt);
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if(b >= t) {
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draw.DrawRect(gx, t, gutter_width, b - t, gutter_bg);
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draw.DrawRect(gx, b, gutter_width, 1, gutter_fg);
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t = b + 1;
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}
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}
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draw.DrawRect(gx, t, gutter_width, sz.cy - t, gutter_bg);
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int total = letter.cy * lcnt;
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if(total <= 0)
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total = 1;
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int page_height = (sz.cy * sz.cy) / total;
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int ty = max(0, (sz.cy * offset.cy) / total);
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int by = min(sz.cy, ty + page_height);
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draw.DrawRect(gx, ty, gutter_width, 2, Black);
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draw.DrawRect(gx, by - 2, gutter_width, 2, Black);
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draw.DrawRect(gx, ty, 2, by - ty, Black);
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draw.DrawRect(gx + gutter_width - 2, ty, 2, by - ty, Black);
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}
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Font ifont = Font(font).Italic();
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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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draw.DrawRect(0, y, number_width, letter.cy, number_bg);
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if(!IsNull(l.number))
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draw.DrawText(0, y + number_yshift, FormatInt(l.number), number_font, l.color);
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}
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draw.Clip(number_width, 0, sz.cx - gutter_width - number_width, sz.cy);
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int sell, selh;
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GetSelection(sell, selh);
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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 = l.color;
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Color paper = SColorPaper();
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if(IsNull(l.number))
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paper = SGray();
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else
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if(l.number >= sell && l.number <= selh) {
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ink = SColorHighlightText;
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paper = SColorHighlight;
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}
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draw.DrawRect(0, y, sz.cx, letter.cy, paper);
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draw.DrawText(number_width - offset.cx, y, ExpandTabs(l.text), l.level == 1 ? ifont : font, ink);
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}
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int lcy = lcnt * letter.cy - offset.cy;
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draw.DrawRect(0, lcy, sz.cx, sz.cy - lcy, SGray());
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draw.End();
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draw.DrawRect(0, lcy, number_width, sz.cy - lcy, number_bg);
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}
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void TextCompareCtrl::TabSize(int t)
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{
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tabsize = t;
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UpdateWidth();
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Layout();
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}
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void TextCompareCtrl::SetFont(Font f, Font nf)
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{
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font = f;
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number_font = nf;
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FontInfo fi = f.Info();
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FontInfo ni = nf.Info();
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letter.cy = fi.GetHeight();
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letter.cx = fi.GetAveWidth();
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number_width = 5 * ni.GetAveWidth();
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number_yshift = (fi.GetHeight() - ni.GetHeight() + 2) >> 1;
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Layout();
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}
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void TextCompareCtrl::SetFont(Font f)
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{
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SetFont(f, GetNumberFont());
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}
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void TextCompareCtrl::Layout()
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{
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scroll.Set(scroll, (scroll.GetReducedViewSize() - Size(number_width + gutter_width, 0)) / letter, Size(maxwidth, lines.GetCount()));
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Refresh();
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}
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void TextCompareCtrl::MouseWheel(Point pt, int zdelta, dword keyflags)
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{
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scroll.WheelY(zdelta);
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}
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void TextCompareCtrl::SetCount(int c)
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{
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bool rl = (c < lines.GetCount());
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lines.SetCount(c);
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if(rl)
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UpdateWidth();
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Layout();
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}
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void TextCompareCtrl::AddCount(int c)
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{
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lines.InsertN(lines.GetCount(), c);
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Layout();
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}
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void TextCompareCtrl::Set(int line, String text, Color color, int number, int level)
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{
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Line& l = lines.At(line);
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int tl = MeasureLength(text);
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int lt = MeasureLength(l.text);
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bool rl = (tl < lt && lt == maxwidth);
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l.number = number;
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l.text = text;
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l.color = color;
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l.level = level;
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if(rl)
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UpdateWidth();
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else if(tl > maxwidth) {
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maxwidth = tl;
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Layout();
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}
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}
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void TextCompareCtrl::SelfScroll()
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{
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Refresh();
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WhenScroll();
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}
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void TextCompareCtrl::PairScroll(TextCompareCtrl *ctrl)
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{
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scroll.Set(ctrl->scroll.Get());
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}
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void TextCompareCtrl::UpdateWidth()
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{
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maxwidth = 0;
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for(int i = 0; i < lines.GetCount(); i++)
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maxwidth = max(maxwidth, MeasureLength(lines[i].text));
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}
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int TextCompareCtrl::MeasureLength(const char *text) const
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{
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int pos = 0;
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while(*text)
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if(*text++ == '\t')
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pos += tabsize - pos % tabsize;
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else
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pos++;
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return pos;
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}
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bool TextCompareCtrl::GetSelection(int& l, int& h)
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{
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if(IsNull(cursor)) {
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l = h = -1;
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return false;
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}
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l = min(cursor, anchor);
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h = max(cursor, anchor);
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return true;
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}
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String TextCompareCtrl::ExpandTabs(const char *text) const
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{
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String out;
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for(char c; (c = *text++);)
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if(c == '\t')
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out.Cat(' ', tabsize - out.GetLength() % tabsize);
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else
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out.Cat(c);
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return out;
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}
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Point TextCompareCtrl::GetPos() const
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{
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Point pos(0, 0);
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int ltop = minmax(scroll.Get().y, 0, lines.GetCount() - 1);
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while(ltop >= 0 && IsNull(lines[ltop].number)) {
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ltop--;
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pos.y++;
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}
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if(ltop >= 0)
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pos.x = lines[ltop].number;
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return pos;
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}
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void TextCompareCtrl::SetPos(Point pos)
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{
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int l = FindFieldIndex(lines, &Line::number,pos.x);
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if(l < 0)
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l = 0;
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SetSb(l + pos.y);
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}
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};
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