105 lines
3.2 KiB
C++
105 lines
3.2 KiB
C++
#include "ui_window.h"
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#include <SDL3/SDL_events.h>
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#include "gfx/shape_renderer.h"
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#include "gfx/txt_renderer.h"
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UIWindow::UIWindow(const char* title, int x, int y, int width, int height) {
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_title = title;
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_x = x;
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_y = y;
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_width = width;
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_height = height;
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_content = nullptr;
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_is_dragging = false;
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_is_hovered = false;
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_is_focused = false; /* Not focused by default? */
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}
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void UIWindow::set_content(Terminal* term) {
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_content = term;
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}
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void UIWindow::set_focused(bool focused) {
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_is_focused = focused;
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}
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Terminal* UIWindow::get_content(void) {
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return _content;
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}
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bool UIWindow::is_point_inside(int x, int y) {
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return (x >= _x && x <= _x + _width &&
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y >= _y && y <= _y + _height);
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}
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void UIWindow::render(ShapeRenderer* shape_renderer, TextRenderer* txt_renderer,
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int screen_height, bool show_cursor) {
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int title_bar_height = 30;
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/* Define colours. */
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float frame_color[] = { 0.2f, 0.2f, 0.25f };
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float title_bar_color[] = { 0.15f, 0.15f, 0.2f };
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float focused_title_bar_color[] = { 0.3f, 0.3f, 0.4f };
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float title_text_color[] = { 0.9f, 0.9f, 0.9f };
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/* Convert top-left coords to bottom-left for OpenGL. */
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int y_gl = screen_height - _y - _height;
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/* Draw main window frame/background. */
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shape_renderer->draw_rect(_x, y_gl, _width, _height, frame_color);
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/* Draw title bar. */
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if(_is_focused) {
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shape_renderer->draw_rect(_x, y_gl+_height-title_bar_height, _width, title_bar_height,
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focused_title_bar_color);
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} else {
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shape_renderer->draw_rect(_x, y_gl+_height-title_bar_height, _width, title_bar_height,
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title_bar_color);
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}
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/* Draw title text. */
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txt_renderer->render_text(_title.c_str(), _x+5, y_gl+_height-title_bar_height+8,
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1.0f, title_text_color);
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if(_content) {
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int content_y_gl = y_gl;
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int content_height_gl = _height - title_bar_height;
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_content->render(txt_renderer, _x, content_y_gl, _width, content_height_gl, show_cursor);
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}
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}
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void UIWindow::handle_event(SDL_Event* event) {
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int title_bar_height = 30;
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if(event->type == SDL_EVENT_MOUSE_BUTTON_DOWN) {
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int mouse_x = event->button.x;
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int mouse_y = event->button.y;
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/* Is click within title bar? */
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if(mouse_x >= _x && mouse_x <= _x + _width &&
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mouse_y >= _y && mouse_y <= _y + title_bar_height) {
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_is_dragging = true;
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_drag_offset_x = mouse_x - _x;
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_drag_offset_y = mouse_y - _y;
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}
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} else if(event->type == SDL_EVENT_MOUSE_BUTTON_UP) {
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_is_dragging = false;
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} else if(event->type == SDL_EVENT_MOUSE_MOTION) {
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if(_is_dragging) {
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_x = event->motion.x - _drag_offset_x;
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_y = event->motion.y - _drag_offset_y;
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}
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/* Check if mouse hovered over window. */
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_is_hovered = is_point_inside(event->motion.x, event->motion.y);
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} else if(event->type == SDL_EVENT_MOUSE_WHEEL) {
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/* Only scroll window if mouse is hovering. */
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if(_is_hovered && _content) {
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/* SDL's wheel motion is negative scroll up on the y. */
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int content_height_gl = _height - title_bar_height;
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_content->scroll(-event->wheel.y, content_height_gl);
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}
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}
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}
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