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#144 Add interactive command line debugger support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,53 @@ | ||
| /* Cam Mannett 2021 | ||
| * | ||
| * See LICENSE file | ||
| */ | ||
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| #pragma once | ||
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| #include "malbolge/utility/argument_parser.hpp" | ||
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| namespace malbolge | ||
| { | ||
| /** Namespace for all GUI types and functions. | ||
| */ | ||
| namespace ui | ||
| { | ||
| /** Namespace for an interactive terminal GUI, based on ncurses. | ||
| */ | ||
| namespace terminal | ||
| { | ||
| /** Core terminal functionality. | ||
| * | ||
| * This class can be moved, but not copied. | ||
| */ | ||
| class core | ||
| { | ||
| public: | ||
| /** Constructor. | ||
| * | ||
| * @param program_data Program data | ||
| */ | ||
| explicit core(argument_parser::program_data program_data); | ||
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| core(const core&) = delete; | ||
| core& operator=(const core&) = delete; | ||
| core(core&&) noexcept = default; | ||
| core& operator=(core&&) noexcept = delete; | ||
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| /** Runs the interactive terminal UI. | ||
| * | ||
| * This function blocks until the UI is exited, which should signal the | ||
| * application to exit. | ||
| * @exception basic_exception Thrown if called on a moved-from instance | ||
| */ | ||
| void run(); | ||
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| private: | ||
| // We use PIMPL to minimise the amount of TUs that import the ncurses header | ||
| struct impl_t; | ||
| std::shared_ptr<impl_t> impl_; | ||
| }; | ||
| } | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| /* Cam Mannett 2021 | ||
| * | ||
| * See LICENSE file | ||
| */ | ||
|
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| #pragma once | ||
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| #include <memory> | ||
| #include <optional> | ||
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| namespace malbolge | ||
| { | ||
| namespace ui | ||
| { | ||
| namespace terminal | ||
| { | ||
| class pane; | ||
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| /** Manages the layout of panes inside the terminal. | ||
| * | ||
| * This class can be moved but not copied. | ||
| */ | ||
| class layout | ||
| { | ||
| public: | ||
| /** Alias for an owning pointer. | ||
| */ | ||
| using pane_ptr = std::shared_ptr<pane>; | ||
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| /** The direction to split a pane into two. | ||
| */ | ||
| enum class split_direction { | ||
| HORIZONTAL, | ||
| VERTICAL | ||
| }; | ||
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| /** Constructor. | ||
| * | ||
| * @param lines Number of lines in the whole terminal | ||
| * @param cols Number of columns in the whole terminal | ||
| */ | ||
| explicit layout(std::size_t lines, std::size_t cols); | ||
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| /** Replace the existing pane (or empty root) with @a new_pane. | ||
| * | ||
| * @param new_pane New pane | ||
| * @param existing_pane An existing pane to replace, or null to replace the | ||
| * root | ||
| * @exception basic_exception Thrown if @a new_pane is null, or is | ||
| * @a existing_pane is non-null but cannot be found in the layout | ||
| */ | ||
| void replace(pane_ptr new_pane, pane_ptr existing_pane = {}); | ||
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| /** Split @a parent and add @a new_pane to the opened slot. | ||
| * | ||
| * The parent of a split is either the top or left pane depending on @a dir. | ||
| * @param new_pane New pane | ||
| * @param dir Direction to split @a parent | ||
| * @param parent Pane to split | ||
| * @exception basic_exception Thrown if @a new_pane or @a parent is null, or | ||
| * if @a parent cannot be found in the layout | ||
| * @exception basic_exception Thrown if @a parent cannot be split anymore | ||
| */ | ||
| void split(pane_ptr new_pane, split_direction dir, pane_ptr parent); | ||
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| /** Inform the layout engine that the terminal has been resized. | ||
| * | ||
| * This will trigger a redraw of all child panes. | ||
| * @param lines New line count | ||
| * @param cols New column count | ||
| */ | ||
| void terminal_resize(std::size_t lines, std::size_t cols); | ||
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| /** Trigger a redraw of all the panes in the layout. | ||
| * | ||
| * This should be called after the layout has been modified. | ||
| */ | ||
| void refresh() noexcept | ||
| { | ||
| refresh(root_); | ||
| } | ||
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| layout(layout&&) = default; | ||
| layout& operator=(layout&&) = default; | ||
| layout(const layout&) = delete; | ||
| layout& operator=(const layout&) = delete; | ||
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| private: | ||
| struct node; | ||
| using node_ptr = std::shared_ptr<node>; | ||
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| void recalculate_dimensions(node_ptr start_node); | ||
| void refresh(node_ptr start_node) noexcept; | ||
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| [[nodiscard]] | ||
| node_ptr find(std::shared_ptr<pane> target, node_ptr start_node) noexcept; | ||
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| [[nodiscard]] | ||
| node_ptr find(std::shared_ptr<pane> target) noexcept | ||
| { | ||
| return find(std::move(target), root_); | ||
| } | ||
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| std::size_t lines_; | ||
| std::size_t cols_; | ||
| node_ptr root_; | ||
| }; | ||
| } | ||
| } | ||
| } |
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