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Generate labels with pangocairo (#8)
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Goal of this PR is to have some basic labels generated with pangocairo
- size of the canvas should be matching the input text and grow/shrink accordingly
- basic formatting options like fontsize and align should be working

Reviewed-on: moritz/ptouch-prnt#8
This commit was merged in pull request #8.
This commit is contained in:
Moritz Martinius
2025-10-12 20:07:18 +00:00
parent fec8ee231b
commit 05cd9d244c
43 changed files with 2087 additions and 622 deletions
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30
src/graphics/Bitmap.hpp
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@@ -1,6 +1,6 @@
/*
ptrnt - print labels on linux
Copyright (C) 2023 Moritz Martinius
Copyright (C) 2023-2025 Moritz Martinius
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
@@ -19,19 +19,17 @@
#pragma once
#include <stdint.h>
#include <cstdint>
#include <memory>
#include <optional>
#include <span>
#include <vector>
namespace ptprnt::graphics {
typedef uint8_t ALPHA8; // Alpha only, 8 bit per pixel
typedef uint32_t RGBX8; // RGB, least significant byte unused, 8 bit per channel
typedef uint32_t RGBA8; // RGB, least significant byte alpha, 8 bit per channel
typedef uint32_t ARGB8; // RGB, most significant byte alpha, 8 bit per channel
using ALPHA8 = std::uint8_t; // Alpha only, 8 bit per pixel
using RGBX8 = std::uint32_t; // RGB, least significant byte unused, 8 bit per channel
using RGBA8 = std::uint32_t; // RGB, least significant byte alpha, 8 bit per channel
using ARGB8 = std::uint32_t; // RGB, most significant byte alpha, 8 bit per channel
template <class T>
class Bitmap {
@@ -39,12 +37,18 @@ class Bitmap {
Bitmap(uint16_t width, uint16_t height);
~Bitmap() = default;
uint16_t getWidth();
uint16_t getHeight();
Bitmap(const Bitmap&) = default;
Bitmap& operator=(const Bitmap&) = default;
Bitmap(Bitmap&&) = default;
Bitmap& operator=(Bitmap&&) = default;
[[nodiscard]] uint16_t getWidth() const;
[[nodiscard]] uint16_t getHeight() const;
bool setPixels(const std::vector<T>& pixels);
std::vector<T> getPixelsCpy();
std::optional<std::vector<T>> getLine(uint16_t line);
std::optional<std::vector<T>> getCol(uint16_t col);
[[nodiscard]] std::vector<T> getPixelsCpy() const;
[[nodiscard]] std::vector<T> getLine(uint16_t line) const;
[[nodiscard]] std::vector<T> getCol(uint16_t col) const;
void visualize() const;
private:
uint16_t mWidth;