Simple IDE Demo

Folder: Demos\SimpleIDEDemo. Project: SimpleIDEDemo.dproj.

Demonstrates how to highlight the breakpoint lines and the current line in different colors, as the Delphi IDE does, and how to create a custom gutter band that shows the information of a debugger.

How it works

The demo has a simulated debugger, TSampleDebugger (unit uSimpleIDEDebugger), that runs a small sample program line by line. It supports the usual commands: run, pause, step, stop, goto cursor (GotoCursor) and the toggle of the breakpoints (ToggleBreakpoint).

The editor shows the state of the debugger with:

• a gutter band that draws the glyphs of the breakpoints, of the executable lines and of the current line (GutterGlyphs.bmp), created with the events OnPaintLines, OnClick and OnMouseCursor of the gutter band;
• the colors of the lines (breakpoint, current line), set with the event OnSpecialLineColors of the editor;
• the commands of the debugger as actions (ActionGlyphs.bmp).

What you can try

• Click in the gutter to set and remove a breakpoint.
• Run the program and see the current line move; pause and step.
• Use "Goto Cursor" to run to the line of the caret.