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Update gtk44

This commit is contained in:
daleclack 2021-02-26 09:00:36 +08:00
parent 299170621f
commit df1e628cde
1 changed files with 5 additions and 2 deletions
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7
Gtk3/gtk44_circle/src/main.cpp
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@ -1,6 +1,7 @@
#include <gtk/gtk.h> #include <gtk/gtk.h>
gboolean draw_color(GtkWidget *widget,cairo_t *cr,gpointer data){ gboolean draw_color(GtkWidget *widget,cairo_t *cr,gpointer data){
//Draw a circle and fill in specfic color
guint width,height; guint width,height;
GdkRGBA color; GdkRGBA color;
GtkStyleContext *context; GtkStyleContext *context;
@ -13,8 +14,8 @@ gboolean draw_color(GtkWidget *widget,cairo_t *cr,gpointer data){
gtk_render_background (context, cr, 0, 0, width, height); gtk_render_background (context, cr, 0, 0, width, height);
cairo_arc (cr, cairo_arc (cr,
width / 2.0, height / 2.0, width / 4.0, height / 4.0,
MIN (width, height) / 2.0, MIN (width, height) / 4.0,
0, 2 * G_PI); 0, 2 * G_PI);
//gtk_style_context_get_color (context, gtk_style_context_get_state (context),&color); //gtk_style_context_get_color (context, gtk_style_context_get_state (context),&color);
gdk_rgba_parse(&color,"#66CCFF"); gdk_rgba_parse(&color,"#66CCFF");
@ -27,8 +28,10 @@ gboolean draw_color(GtkWidget *widget,cairo_t *cr,gpointer data){
static void gtkmain(GtkApplication *app,gpointer user_data){ static void gtkmain(GtkApplication *app,gpointer user_data){
GtkWidget *window,*drawing_area; GtkWidget *window,*drawing_area;
//Create a window
window=gtk_application_window_new(app); window=gtk_application_window_new(app);
gtk_window_set_icon_name(GTK_WINDOW(window),"org.gtk.daleclack"); gtk_window_set_icon_name(GTK_WINDOW(window),"org.gtk.daleclack");
//Create a draw area
drawing_area=gtk_drawing_area_new(); drawing_area=gtk_drawing_area_new();
gtk_widget_set_size_request(drawing_area,400,300); gtk_widget_set_size_request(drawing_area,400,300);
g_signal_connect(drawing_area,"draw",G_CALLBACK(draw_color),NULL); g_signal_connect(drawing_area,"draw",G_CALLBACK(draw_color),NULL);