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LibGUI: Add support for clip area to texture

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Bananymous
2025-06-10 21:42:55 +03:00
parent ac22e006a4
commit 8a73414e3e
2 changed files with 118 additions and 15 deletions
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21
userspace/libraries/LibGUI/include/LibGUI/Texture.h
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@@ -13,6 +13,7 @@ namespace LibGUI
{
public:
static BAN::ErrorOr<Texture> create(uint32_t width, uint32_t height, uint32_t color);
Texture() = default;
BAN::ErrorOr<void> resize(uint32_t width, uint32_t height);
@@ -20,6 +21,10 @@ namespace LibGUI
{
ASSERT(x < m_width);
ASSERT(y < m_height);
if (x < m_clip_x || x >= m_clip_x + m_clip_w)
return;
if (y < m_clip_y || y >= m_clip_y + m_clip_h)
return;
m_pixels[y * m_width + x] = color;
}
@@ -32,10 +37,12 @@ namespace LibGUI
BAN::Span<uint32_t> pixels() { return m_pixels.span(); }
void set_clip_area(int32_t x, int32_t y, uint32_t width, uint32_t height);
void fill_rect(int32_t x, int32_t y, uint32_t width, uint32_t height, uint32_t color);
void fill(uint32_t color) { return fill_rect(0, 0, width(), height(), color); }
void copy_texture(const Texture& texture, int32_t x, int32_t y);
void copy_texture(const Texture& texture, int32_t x, int32_t y, uint32_t sub_x = 0, uint32_t sub_y = 0, uint32_t width = -1, uint32_t height = -1);
void draw_character(uint32_t codepoint, const LibFont::Font& font, int32_t x, int32_t y, uint32_t color);
void draw_text(BAN::StringView text, const LibFont::Font& font, int32_t x, int32_t y, uint32_t color);
@@ -59,15 +66,19 @@ namespace LibGUI
void set_bg_color(uint32_t bg_color) { m_bg_color = bg_color; }
private:
Texture() = default;
Texture(BAN::Vector<uint32_t>&& pixels, uint32_t width, uint32_t height, uint32_t color)
: m_pixels(BAN::move(pixels))
, m_width(width)
, m_height(height)
, m_bg_color(color)
, m_clip_x(0)
, m_clip_y(0)
, m_clip_w(width)
, m_clip_h(height)
{}
bool clamp_to_texture(int32_t& x, int32_t& y, uint32_t& width, uint32_t& height) const;
bool clamp_to_texture(int32_t& dst_x, int32_t& dst_y, int32_t& src_x, int32_t& src_y, uint32_t& width, uint32_t& height, const Texture&) const;
private:
BAN::Vector<uint32_t> m_pixels;
@@ -75,6 +86,12 @@ namespace LibGUI
uint32_t m_height { 0 };
uint32_t m_bg_color { 0xFFFFFFFF };
uint32_t m_clip_x { 0 };
uint32_t m_clip_y { 0 };
uint32_t m_clip_w { 0 };
uint32_t m_clip_h { 0 };
bool m_has_set_clip { false };
friend class Window;
};