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Patrick 2025-10-03 20:16:11 +02:00
commit 56f7cd1875
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src/gui/widgets/button.c Normal file
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#include <pgpl.h>
#include <stdlib.h>
static void get_content_size(PGPL_GuiWidget *widget, PGPL_GuiTheme *theme,
double *width, double *height, double max_width,
double max_height) {
PGPL_GuiButtonWidget *button_widget = (PGPL_GuiButtonWidget *)widget;
PGPL_Rectangle rect;
(void)max_width;
(void)max_height;
pgpl_font_string_dimensions(theme->font, button_widget->text,
theme->font_size[widget->font_size], &rect);
*width = rect.right - rect.left;
*height = rect.bottom - rect.top;
}
static void render_content(PGPL_GuiWidget *widget, PGPL_Renderer *renderer,
PGPL_GuiTheme *theme, double x, double y,
double max_width, double max_height) {
PGPL_GuiButtonWidget *button_widget = (PGPL_GuiButtonWidget *)widget;
(void)max_width;
(void)max_height;
pgpl_font_render_string(renderer, theme->font, button_widget->text,
theme->text_color[widget->gui_color], x, y,
theme->font_size[widget->font_size]);
}
static void event(PGPL_GuiWidget *widget, PGPL_GuiTheme *theme, PGPL_Gui *gui,
PGPL_WindowEventType event_type,
PGPL_WindowEventData *event_data, double x, double y,
double max_width, double max_height) {
PGPL_GuiButtonWidget *button_widget = (PGPL_GuiButtonWidget *)widget;
if (event_type == PGPL_WINDOW_EVENT_MOUSE_PRESS ||
event_type == PGPL_WINDOW_EVENT_MOUSE_RELEASE ||
event_type == PGPL_WINDOW_EVENT_MOUSE_MOVE) {
if (pgpl_gui_widget_within_bounds(widget, theme, x, y, max_width,
max_height, event_data->input_event.x,
event_data->input_event.y)) {
if (event_type == PGPL_WINDOW_EVENT_MOUSE_PRESS &&
event_data->input_event.key == PGPL_WINDOW_MOUSE_BUTTON_LEFT) {
widget->gui_color = PGPL_GUI_STATUS_COLOR_ACTIVE;
return;
} else if (event_type == PGPL_WINDOW_EVENT_MOUSE_RELEASE &&
event_data->input_event.key == PGPL_WINDOW_MOUSE_BUTTON_LEFT) {
if (widget->gui_color == PGPL_GUI_STATUS_COLOR_ACTIVE) {
button_widget->click_callback(gui->app_data);
}
widget->gui_color = PGPL_GUI_STATUS_COLOR_HOVER;
return;
} else {
if (widget->gui_color != PGPL_GUI_STATUS_COLOR_ACTIVE) {
widget->gui_color = PGPL_GUI_STATUS_COLOR_HOVER;
}
return;
}
}
}
widget->gui_color = PGPL_GUI_STATUS_COLOR_NORMAL;
}
static void destroy(PGPL_GuiWidget *widget) {
pgpl_gui_button_widget_destroy((PGPL_GuiButtonWidget *)widget);
}
PGPL_GuiButtonWidget *
pgpl_gui_button_widget_create(const char *text,
void (*click_callback)(void *app_data)) {
PGPL_GuiButtonWidget *button_widget = calloc(1, sizeof(*button_widget));
button_widget->parent.id = "PGPL_GuiButtonWidget";
button_widget->parent.get_content_size = get_content_size;
button_widget->parent.render_content = render_content;
button_widget->parent.event = event;
button_widget->parent.destroy = destroy;
button_widget->text = text;
button_widget->click_callback = click_callback;
return button_widget;
}
void pgpl_gui_button_widget_destroy(PGPL_GuiButtonWidget *button_widget) {
free(button_widget);
}