nedko/trmnl_sdl
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Added being able to set position via JSON. Text now always wraps on newlines.

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This commit is contained in:
nedko 2025-12-04 17:44:24 +02:00
parent 56e07e1080
commit 69a50b0584
4 changed files with 21 additions and 19 deletions
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4
Widgets/Widget.cpp
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@ -1,7 +1,7 @@
#include "Widget.h" #include "Widget.h"
Widget::Widget(int width, int height) Widget::Widget(int x, int y, int width, int height)
: m_surface(nullptr), m_rect{.x = 0, .y = 0, .w = width, .h = height} : m_surface(nullptr), m_rect{.x = x, .y = y, .w = width, .h = height}
{ {
m_surface = SDL_CreateRGBSurfaceWithFormat(0, width, height, 32, SDL_PIXELFORMAT_RGBA8888); m_surface = SDL_CreateRGBSurfaceWithFormat(0, width, height, 32, SDL_PIXELFORMAT_RGBA8888);
} }

2
Widgets/Widget.h
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@ -13,7 +13,7 @@ protected:
SDL_Rect m_rect; SDL_Rect m_rect;
public: public:
Widget(int width, int height); Widget(int x, int y, int width, int height);
virtual ~Widget(); virtual ~Widget();
// Method which updates the internal surface with the latest image // Method which updates the internal surface with the latest image

28
Widgets/WidgetText.cpp
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@ -5,24 +5,22 @@ using std::string;
static SDL_Surface* render_text(bool should_wrap, TTF_Font* font, const string& text, SDL_Color color, Uint32 wrap_size) static SDL_Surface* render_text(bool should_wrap, TTF_Font* font, const string& text, SDL_Color color, Uint32 wrap_size)
{ {
SDL_Surface* txt_surface = nullptr; SDL_Surface* txt_surface = nullptr;
if (should_wrap) if (!should_wrap)
{ {
txt_surface = TTF_RenderUTF8_Solid_Wrapped(font, text.c_str(), color, wrap_size); // When wrap_size is 0 - the text only wraps on newlines
} wrap_size = 0;
else
{
txt_surface = TTF_RenderUTF8_Solid(font, text.c_str(), color);
} }
txt_surface = TTF_RenderUTF8_Solid_Wrapped(font, text.c_str(), color, wrap_size);
return txt_surface; return txt_surface;
} }
WidgetText::WidgetText(int width, int height, string text, WidgetText::WidgetText(int x, int y, int width, int height, string text,
TextFit fit, bool should_wrap, TextFit fit, bool should_wrap,
HorizontalAlign halign, VerticalAlign valign, HorizontalAlign halign, VerticalAlign valign,
SDL_Color text_color, SDL_Color text_color,
int size, std::string font) int size, std::string font)
: Widget(width, height), : Widget(x, y, width, height),
m_text(text), m_text(text),
m_font_file(font), m_font_file(font),
m_size(size), m_size(size),
@ -38,10 +36,10 @@ m_text_color(text_color)
} }
} }
WidgetText::WidgetText(int width, int height, string text, WidgetText::WidgetText(int x, int y, int width, int height, string text,
TextFit fit, bool should_wrap, TextFit fit, bool should_wrap,
int size, string font) int size, string font)
: Widget(width, height), : Widget(x, y, width, height),
m_text(text), m_text(text),
m_font_file(font), m_font_file(font),
m_size(size), m_size(size),
@ -57,9 +55,9 @@ m_text_color{.r = 0, .g = 0, .b = 0, .a = SDL_ALPHA_OPAQUE}
} }
} }
WidgetText::WidgetText(int width, int height, string text, WidgetText::WidgetText(int x, int y, int width, int height, string text,
int size, string font) int size, string font)
: Widget(width, height), : Widget(x, y, width, height),
m_text(text), m_text(text),
m_font_file(font), m_font_file(font),
m_size(size), m_size(size),
@ -192,6 +190,8 @@ void WidgetText::draw()
Widget* WidgetText::builder(const nlohmann::json& j) Widget* WidgetText::builder(const nlohmann::json& j)
{ {
int x = 0;
int y = 0;
int width = 0; int width = 0;
int height = 0; int height = 0;
string text = ""; string text = "";
@ -203,6 +203,8 @@ Widget* WidgetText::builder(const nlohmann::json& j)
int size = 0; int size = 0;
string font = ""; string font = "";
json_extract(j, "x", x);
json_extract(j, "y", y);
json_extract(j, "width", width); json_extract(j, "width", width);
json_extract(j, "height", height); json_extract(j, "height", height);
json_extract(j, "text", text); json_extract(j, "text", text);
@ -219,5 +221,5 @@ Widget* WidgetText::builder(const nlohmann::json& j)
return nullptr; return nullptr;
} }
return new WidgetText(width, height, text, fit, should_wrap, halign, valign, text_color, size, font); return new WidgetText(x, y, width, height, text, fit, should_wrap, halign, valign, text_color, size, font);
} }

6
Widgets/WidgetText.h
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@ -42,17 +42,17 @@ protected:
SDL_Color m_text_color; SDL_Color m_text_color;
public: public:
WidgetText(int width, int height, std::string text, WidgetText(int x, int y, int width, int height, std::string text,
TextFit fit, bool should_wrap, TextFit fit, bool should_wrap,
HorizontalAlign halign, VerticalAlign valign, HorizontalAlign halign, VerticalAlign valign,
SDL_Color text_color, SDL_Color text_color,
int size, std::string font = ""); int size, std::string font = "");
WidgetText(int width, int height, std::string text, WidgetText(int x, int y, int width, int height, std::string text,
TextFit fit, bool should_wrap, TextFit fit, bool should_wrap,
int size, std::string font = ""); int size, std::string font = "");
WidgetText(int width, int height, std::string text, WidgetText(int x, int y, int width, int height, std::string text,
int size, std::string font = ""); int size, std::string font = "");
void set_text(const std::string& text); void set_text(const std::string& text);