227 lines
8.9 KiB
C++
227 lines
8.9 KiB
C++
/* BSD 3-Clause License
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*
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* Copyright © 2008-2022, Jice and the libtcod contributors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef TCOD_CONSOLE_DRAWING_H_
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#define TCOD_CONSOLE_DRAWING_H_
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#ifdef __cplusplus
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#include <array>
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#include <optional>
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#endif // __cplusplus
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#include "config.h"
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#include "console_types.h"
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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/**
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* Draw a rectangle onto a console.
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*
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* \param con A console pointer.
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* \param x The starting region, the left-most position being 0.
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* \param y The starting region, the top-most position being 0.
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* \param rw The width of the rectangle.
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* \param rh The height of the rectangle.
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* \param clear If true the drawing region will be filled with spaces.
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* \param flag The blending flag to use.
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*/
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TCOD_PUBLIC void TCOD_console_rect(TCOD_Console* con, int x, int y, int rw, int rh, bool clear, TCOD_bkgnd_flag_t flag);
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/**
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* Draw a horizontal line using the default colors.
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*
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* \param con A console pointer.
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* \param x The starting X coordinate, the left-most position being 0.
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* \param y The starting Y coordinate, the top-most position being 0.
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* \param l The width of the line.
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* \param flag The blending flag.
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*
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* This function makes assumptions about the fonts character encoding.
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* It will fail if the font encoding is not `cp437`.
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*/
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TCOD_PUBLIC void TCOD_console_hline(TCOD_Console* con, int x, int y, int l, TCOD_bkgnd_flag_t flag);
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/**
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* Draw a vertical line using the default colors.
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*
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* \param con A console pointer.
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* \param x The starting X coordinate, the left-most position being 0.
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* \param y The starting Y coordinate, the top-most position being 0.
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* \param l The height of the line.
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* \param flag The blending flag.
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*
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* This function makes assumptions about the fonts character encoding.
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* It will fail if the font encoding is not `cp437`.
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*/
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TCOD_PUBLIC void TCOD_console_vline(TCOD_Console* con, int x, int y, int l, TCOD_bkgnd_flag_t flag);
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// Next functions are provisional unless given an added version.
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/**
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* Place a single tile on a `console` at `x`,`y`.
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*
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* If `ch` is 0 then the character code will not be updated.
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*
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* If `fg`,`bg` is NULL then their respective colors will not be updated.
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*/
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TCOD_PUBLIC void TCOD_console_put_rgb(
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TCOD_Console* __restrict console,
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int x,
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int y,
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int ch,
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const TCOD_color_t* fg,
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const TCOD_color_t* bg,
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TCOD_bkgnd_flag_t flag);
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/**
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* Draw a rectangle on a `console` with a shape of `x`,`y`,`width`,`height`.
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*
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* If `ch` is 0 then the character code will not be updated.
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*
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* If `fg`,`bg` is NULL then their respective colors will not be updated.
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*/
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TCOD_PUBLIC TCOD_Error TCOD_console_draw_rect_rgb(
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TCOD_Console* __restrict console,
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int x,
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int y,
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int width,
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int height,
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int ch,
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const TCOD_color_t* fg,
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const TCOD_color_t* bg,
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TCOD_bkgnd_flag_t flag);
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/**
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Draw a decorated frame onto `console` with the shape of `x`, `y`, `width`, `height`.
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`decoration[9]` is an optional array of Unicode codepoints.
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If left as NULL then a single-pipe decoration is used by default.
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If `decoration[9]` is given the codepoints are used for the edges, corners, and fill of the frame in this order:
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0 1 2
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3 4 5
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6 7 8
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If `fg` or `bg` is NULL then their respective colors will not be updated.
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If `clear` is true then the inner area of the frame is filled with the inner decoration, which is typically space.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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TCOD_PUBLIC TCOD_Error TCOD_console_draw_frame_rgb(
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struct TCOD_Console* __restrict con,
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int x,
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int y,
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int width,
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int height,
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const int* __restrict decoration,
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const TCOD_ColorRGB* __restrict fg,
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const TCOD_ColorRGB* __restrict bg,
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TCOD_bkgnd_flag_t flag,
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bool clear);
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#ifdef __cplusplus
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} // extern "C"
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namespace tcod {
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/***************************************************************************
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@brief Fill a region with the given graphic.
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@param console A reference to a TCOD_Console.
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@param rect An `{x, y, width, height}` rectangle, starting from the upper-left-most tile as zero.
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@param ch The character to draw. If zero then the characters in the drawing region will not be changed.
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@param fg The foreground color. The printed text is set to this color.
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If std::nullopt then the foreground will be left unchanged, inheriting the previous value of the tile.
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@param bg The background color. The background tile under the printed text is set to this color.
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If std::nullopt then the background will be left unchanged.
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@param flag The background blending flag.
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@code{.cpp}
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auto console = tcod::Console{80, 50};
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// Draw a red background without replacing any foreground glyphs/colors.
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tcod::draw_rect(console, {2, 2, 24, 24}, 0, std::nullopt, tcod::ColorRGB{255, 0, 0});
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// Draw a horizontal bar.
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tcod::draw_rect(console, {8, 8, 16, 1}, '-', {{255, 255, 255}}, std::nullopt);
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@endcode
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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inline void draw_rect(
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TCOD_Console& console,
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const std::array<int, 4>& rect,
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int ch,
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std::optional<TCOD_ColorRGB> fg,
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std::optional<TCOD_ColorRGB> bg,
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TCOD_bkgnd_flag_t flag = TCOD_BKGND_SET) {
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const TCOD_ColorRGB* fg_ptr = fg ? &fg.value() : nullptr;
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const TCOD_ColorRGB* bg_ptr = bg ? &bg.value() : nullptr;
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tcod::check_throw_error(
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TCOD_console_draw_rect_rgb(&console, rect.at(0), rect.at(1), rect.at(2), rect.at(3), ch, fg_ptr, bg_ptr, flag));
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}
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/***************************************************************************
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@brief Draw a decorative frame.
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@param console A reference to a TCOD_Console.
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@param rect An `{x, y, width, height}` rectangle, starting from the upper-left-most tile as zero.
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@param decoration The codepoints to use for the frame in row-major order.
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@param fg The foreground color. The printed text is set to this color.
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If std::nullopt then the foreground will be left unchanged, inheriting the previous value of the tile.
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@param bg The background color. The background tile under the printed text is set to this color.
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If std::nullopt then the background will be left unchanged.
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@param flag The background blending flag.
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@param clear If true then the center area will be cleared with the center decoration.
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`decoration` is given the codepoints to be used for the edges, corners, and fill of the frame in this order:
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0 1 2
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3 4 5
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6 7 8
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@code{.cpp}
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auto console = tcod::Console{80, 50};
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static constexpr std::array<int, 9> LEGEND = {'0', '1', '2', '3', '4', '5', '6', '7', '8'};
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tcod::draw_frame(console, {0, 0, 3, 3}, LEGEND, {{255, 255, 255}}, {{0, 0, 0}});
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@endcode
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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inline void draw_frame(
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TCOD_Console& console,
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const std::array<int, 4>& rect,
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const std::array<int, 9>& decoration,
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std::optional<TCOD_ColorRGB> fg,
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std::optional<TCOD_ColorRGB> bg,
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TCOD_bkgnd_flag_t flag = TCOD_BKGND_SET,
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bool clear = true) {
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const TCOD_ColorRGB* fg_ptr = fg ? &fg.value() : nullptr;
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const TCOD_ColorRGB* bg_ptr = bg ? &bg.value() : nullptr;
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tcod::check_throw_error(TCOD_console_draw_frame_rgb(
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&console, rect.at(0), rect.at(1), rect.at(2), rect.at(3), decoration.data(), fg_ptr, bg_ptr, flag, clear));
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}
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} // namespace tcod
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#endif // __cplusplus
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#endif // TCOD_CONSOLE_DRAWING_H_
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