YOUSEFUL / DELPHI

Sample projects

Learning center · Getting started · Tutorials

Every project is a plain Delphi program with its units and a README. Open the .dpr in Delphi 13 and add the src folders listed in Getting started to the search path. Console projects marked self-checking verify their own results and are built and run for Win32 and Win64 before each release of these pages.

Atlas VCL

• Application shell (VCL application). A workspace with navigation, command bar, tiles, a chart page, gauges, theme switching and layout persistence. Uses TAtlasWorkspace, TAtlasNavigation, TAtlasCommandBar, TAtlasTileBoard, TAtlasActionTile, TAtlasChart, TAtlasGauge, TAtlasThemer.
• Diagram, graph and map (Console program, self-checking). Builds a TAtlasGraph organisation chart in code, lays it out, round-trips JSON, renders it through TAtlasDiagram and checks TAtlasMap projection, all without a visible window. Uses TAtlasGraph, TAtlasDiagram, TAtlasMap.
• Grid quick start (VCL application). A typed TAtlasTable shown in a TAtlasGrid with filtering, header sorting, validated row entry through TAtlasValueEdit, deletion and CSV export. Uses TAtlasTable, TAtlasGrid, TAtlasValueEdit.
• Print a table and read a PDF (Console program, self-checking). Paginates an 80-row table into a three-page report, previews pages to PNG, then writes a two-page PDF and renders it through the Windows PDF engine. Uses TAtlasPrintDocument, TAtlasPdfDocument, TAtlasTable.
• Week schedule and Gantt chart (VCL application). A window with a TAtlasScheduler week view over a TAtlasSchedule and a TAtlasGantt over an auto-scheduled TAtlasTaskPlan, created in code. Uses TAtlasSchedule, TAtlasScheduler, TAtlasTaskPlan, TAtlasGantt.
• Tree and editors (Console program, self-checking). Exercises TAtlasTree, TAtlasSheetGrid, TAtlasInspector, TAtlasRichEdit and TAtlasValueEdit on a hidden form and verifies every result without showing a window. Uses TAtlasTree, TAtlasSheetGrid, TAtlasWorkbook, TAtlasInspector, TAtlasRichEdit, TAtlasValueEdit.
• Wizard flow (VCL application). A three-page TAtlasWizard with a validation veto, a live summary, a single Finish event and Restart. Uses TAtlasWizard.
• Workbook report (Console program, self-checking). Sorts, filters and exports a TAtlasTable, summarizes it with TAtlasPivot, recomputes the totals with TAtlasWorkbook formulas and formats, and spell-checks the caption; every result is verified. Uses TAtlasTable, TAtlasPivot, TAtlasWorkbook, TAtlasSpellChecker.

Atlas Analytics

• Analytics queries (Console program, self-checking). Selects, filters and aggregates a TAtlasTable with TAtlasAnalytics, handles the two error classes and exports the dataset JSON. Uses TAtlasAnalytics, TAtlasFilter, TAtlasMeasure, EAtlasAnalyticsError.
• Grouped report to HTML (Console program, self-checking). Defines a grouped report over a TAtlasTable, checks the aggregates, exports HTML, round-trips the definition through JSON and prepares a print document. Uses TAtlasReportDefinition, TAtlasAnalytics, TAtlasMeasure, TAtlasFilter.
• Linked dashboard (VCL application). A VCL form with KPI, chart and grid widgets bound to one TAtlasTable, filtered together by region, refreshed by new rows and saved to JSON. Uses TAtlasDashboard, TAtlasWidgetDefinition, TAtlasDashboardWidget, TAtlasFilter.

Atlas UI

• Kanban board (VCL application). A Kanban model shown in a board, with cards moved in code and from buttons, a veto rule and JSON export. Uses TAtlasKanbanModel, TAtlasKanban.
• Kanban model in a console (Console program, self-checking). Builds a board in TAtlasKanbanModel, checks work limits, vetoes, ordering and the JSON round trip, and verifies every result. Uses TAtlasKanbanModel.
• Manifest check (Console program, self-checking). Compares versions, parses and validates update manifests and shows what TAtlasWebUpdater refuses before it would download, all without network access. Uses TAtlasWebUpdater.
• Syntax tokens (Console program, self-checking). Tokenizes Object Pascal with AtlasPascalTokens, then checks TAtlasSyntaxMemo colours, token offsets and text undo on a hidden form. Uses TAtlasSyntaxMemo.

Atlas Fin

• Candle chart export (Console program, self-checking). Builds OHLCV bars in code, adds SMA, Bollinger, RSI and MACD studies, verifies the indicator values and writes PNG and SVG files without a window. Uses TAtlasFinChart, TAtlasBarSeries, TAtlasIndicators.
• Interactive financial chart (VCL application). A four-pane price, volume, MACD and RSI chart with crosshair read-out, zoom and scroll, a switchable price style, a logarithmic scale and simulated live bars. Uses TAtlasFinChart, TAtlasBarSeries, TAtlasFinPane, TAtlasFinStudy.

Atlas Info

• Data grid editing (VCL application). A customer table in a FireDAC memory dataset shown in TAtlasDBGrid with a category lookup, a name filter, typed balance edits, explicit Post and Cancel buttons and CSV export. Uses TAtlasDBGrid, TAtlasDBLookupCombo, TAtlasFilterEdit, TAtlasDataFilter.
• Filter console (Console program, self-checking). Filters a FireDAC memory table with TAtlasDataFilter and TAtlasFilterEdit, exports the visible rows to CSV and drives a lookup combo, verifying every record count. Uses TAtlasDataFilter, TAtlasFilterEdit, TAtlasDBGrid, TAtlasDBLookupCombo.
• Rich text console (Console program, self-checking). Stores RTF in a blob field of a FireDAC memory table with TAtlasDBRichEdit: load, format, commit, post, cancel and reject invalid data, with every result verified. Uses TAtlasDBRichEdit.

Atlas Plot Pro

• A custom chart type (Console program, self-checking). Writes a progress chart on TAtlasCustomChart with a legend and hit testing, then renders it to a bitmap, an SVG surface and four file formats and checks every result. Uses TAtlasCustomChart, TAtlasLegendEntry.
• Pro charts in a window (VCL application). A box plot, a heat map with empty cells, a radar chart with a gap and a TAtlasPlot showing a polynomial fit, smoothing or a histogram, with hit testing and export to PNG, SVG and EMF. Uses TAtlasBoxPlot, TAtlasHeatMap, TAtlasPolarPlot, TAtlasPlotAnalysis.
• Statistics console (Console program, self-checking). Quantiles, box statistics, a histogram, correlation, polynomial fits and smoothing on known data, then a heat map and a box plot exported to files without a window. Uses TAtlasStats, TAtlasHeatMap, TAtlasBoxPlot.

Atlas Plot

• Interactive plot (VCL application). One window that switches between stacked areas, a date axis with a moving average, log-log points and a donut, with zoom, pan, hit testing and a nearest-point click. Uses TAtlasPlot, TAtlasPlotSeries, TAtlasPlotAxis, TAtlasPlotSeriesList.
• Plot to PNG (Console program, self-checking). Builds a bar and line chart in code and exports it as PNG, SVG and CSV without showing a window. Uses TAtlasPlot, TAtlasPlotSeries, TAtlasPlotAxis.

Atlas Virtual Grid

• Memory grid export (Console program, self-checking). Fills a TAtlasMemoryData in code, binds a TAtlasVirtualGrid with bands and totals, sorts, filters, edits through the source and writes CSV, HTML, SVG and PNG files without showing a window. Uses TAtlasMemoryData, TAtlasVirtualGrid.
• Virtual rows and a chart companion (VCL application). A VCL window with a million on-demand rows (bands, frozen columns, validated in-place editing, conditional colours, filter timing) and a chart edited through a table. Uses TAtlasVirtualGrid, TAtlasVirtualData, TAtlasPlotData.

Atlas Crypto

• Seal and open (Console program, self-checking). Hashes text against a published known answer, seals a note with a password and with a key, and shows tampering refused. Uses TAtlasHashCalculator, TAtlasSecretBox, TAtlasHash, TAtlasBytes.
• Sign and protect files (Console program, self-checking). ECDSA signatures, ECDH key agreement, RSA key wrapping and a file encrypted in authenticated chunks with TAtlasFileProtector. Uses TAtlasFileProtector, TAtlasHashCalculator, TAtlasEcdsa, TAtlasEcdh, TAtlasRsa, TAtlasKdf, TAtlasSecretBox.

Atlas Log

• First logger (Console program, self-checking). A logger with memory, console, debugger, rotating text and JSON file sinks, message templates, a channel, a scope, a failure and a timer, checked by reading the files back. Uses TAtlasLogger, TAtlasMemorySink, TAtlasFileSink, TAtlasConsoleSink, TAtlasDebugSink.
• Live log viewer (VCL application). A VCL form with a TAtlasLogView over a TAtlasMemorySink, fed from the main thread and from worker threads, with level and text filters, copy and clear. Uses TAtlasLogger, TAtlasMemorySink, TAtlasLogView.
• Threaded asynchronous logging (Console program, self-checking). Four threads log through an asynchronous sink with a bounded queue into a JSON file, with a callback sink, a custom sink, overflow policies, Flush and the Dropped and TargetErrors counters, all checked. Uses TAtlasLogger, TAtlasAsyncSink, TAtlasFileSink, TAtlasCallbackSink.

Atlas MQTT

• Loopback publish and subscribe (Console program, self-checking). Starts an in-process broker on a free loopback port, subscribes one client with a wildcard, publishes at quality 0, 1 and 2 and verifies what came back. Uses TAtlasMqttBroker, TAtlasMqttClient.
• Reconnect, will and retained messages (Console program, self-checking). Four clients through an in-process broker: a refused password, a retained status, a will after a cut connection, automatic reconnect with resubscription and publishing while offline. Uses TAtlasMqttBroker, TAtlasMqttClient.