Finish multiline support

config.h

@@ -2,14 +2,15 @@ const static char *background_color = "#3e3e3e";
 const static char *border_color = "#ececec";
 const static char *font_color = "#ececec";
 const static char *font_pattern = "Inconsolata:style=Medium:size=13";
+const static unsigned line_spacing = 5;
 const static unsigned int padding = 15;
 
 const static unsigned int width = 200;
 const static unsigned int border_size = 2;
-const static unsigned int pos_x = 40;
+const static unsigned int pos_x = 30;
 const static unsigned int pos_y = 50;
 
 enum corners { TOP_LEFT, TOP_RIGHT, BOTTOM_LEFT, BOTTOM_RIGHT };
 enum corners corner = TOP_RIGHT;
 
-const static unsigned int duration = 15; /* in seconds */
+const static unsigned int duration = 5; /* in seconds */

herbe.c

@@ -4,46 +4,12 @@
 #include <stdlib.h>
 #include <signal.h>
 #include <unistd.h>
-#include <math.h>
 
 #include "config.h"
 
 Display *display;
 Window window;
 
-int get_eol(char *body, XftFont *font)
-{
-	int body_len = strlen(body);
-	XGlyphInfo info;
-	XftTextExtentsUtf8(display, font, body, body_len, &info);
-
-	int max_text_width = width - 2 * padding;
-
-	if (info.width < max_text_width)
-		return body_len;
-
-	int eol = max_text_width / font->max_advance_width;
-	info.width = 0;
-
-	while (info.width < max_text_width)
-	{
-		eol++;
-		XftTextExtentsUtf8(display, font, body, eol, &info);
-	}
-
-	return --eol;
-
-	// if (body[eol] == ' ')
-	// 	return --eol;
-
-	// while (body[eol] != ' ')
-	// {
-	// 	eol--;
-	// }
-
-	// return ++eol;
-}
-
 void expire()
 {
 	XEvent event;
@@ -77,8 +43,8 @@ int main(int argc, char *argv[])
 	Visual *visual = DefaultVisual(display, screen);
 	Colormap colormap = DefaultColormap(display, screen);
 
-	int window_width = DisplayWidth(display, screen);
+	int screen_width = DisplayWidth(display, screen);
-	int window_height = DisplayHeight(display, screen);
+	int screen_height = DisplayHeight(display, screen);
 
 	XftColor color;
 
@@ -91,30 +57,65 @@ int main(int argc, char *argv[])
 
 	XftFont *font = XftFontOpenName(display, screen, font_pattern);
 
+	int max_text_width = width - 2 * padding;
+	int eols_size = 5;
+	int *eols = malloc(eols_size * sizeof(int));
+	eols[0] = 0;
+	int remainder = strlen(body);
+	int num_of_lines = 1;
+
+	while (1)
+	{
+		XGlyphInfo info;
+		info.width = 0;
+		int eol = max_text_width / font->max_advance_width;
+		while (info.width < max_text_width)
+		{
+			eol++;
+			XftTextExtentsUtf8(display, font, body, eol, &info);
+		}
+
+		--eol;
+
+		if (eol >= remainder)
+		{
+			if (eols_size < num_of_lines + 1)
+			{
+				eols_size += 5;
+				eols = realloc(eols, eols_size * sizeof(int));
+			}
+			eols[num_of_lines] = eols[num_of_lines - 1] + remainder;
+			num_of_lines++;
+			break;
+		}
+
+		remainder -= eol;
+		if (eols_size < num_of_lines + 1)
+		{
+			eols_size += 5;
+			eols = realloc(eols, eols_size * sizeof(int));
+		}
+		eols[num_of_lines] = eols[num_of_lines - 1] + eol;
+		num_of_lines++;
+	}
+
 	unsigned int x = pos_x;
 	unsigned int y = pos_y;
-	unsigned int height = font->ascent - font->descent + padding * 2;
+	unsigned int text_height = font->ascent - font->descent;
+	unsigned int height = (num_of_lines - 2) * line_spacing + (num_of_lines - 1) * text_height + 2 * padding;
 
 	switch (corner)
 	{
 	case BOTTOM_RIGHT:
-		y = window_height - height - border_size * 2 - pos_y;
+		y = screen_height - height - border_size * 2 - pos_y;
 	case TOP_RIGHT:
-		x = window_width - width - border_size * 2 - pos_x;
+		x = screen_width - width - border_size * 2 - pos_x;
 		break;
 	case BOTTOM_LEFT:
-		y = window_height - height - border_size * 2 - pos_y;
+		y = screen_height - height - border_size * 2 - pos_y;
 	}
 
-	XGlyphInfo info;
+	window = XCreateWindow(display, RootWindow(display, screen), x, y, width, height, border_size, DefaultDepth(display, screen), CopyFromParent, visual,
-	XftTextExtentsUtf8(display, font, body, strlen(body), &info);
-	int num_of_lines = ceil((float)info.width / (width - 2 * padding));
-
-	window = XCreateWindow(
-		display, RootWindow(display, screen), x,
-		y, width, (num_of_lines - 1) * 5 + num_of_lines * (font->ascent - font->descent) + 2 * padding, border_size,
-		DefaultDepth(display, screen), CopyFromParent,
-		visual,
 						   CWOverrideRedirect | CWBackPixel | CWBorderPixel, &attributes);
 
 	XftDraw *draw = XftDrawCreate(display, window, visual, colormap);
@@ -124,14 +125,6 @@ int main(int argc, char *argv[])
 
 	XMapWindow(display, window);
 
-	int eols[num_of_lines + 1];
-	eols[0] = 0;
-
-	for (int i = 1; i < num_of_lines + 1; i++)
-	{
-		eols[i] = eols[i - 1] + get_eol(body + eols[i - 1], font);
-	}
-
 	XEvent event;
 
 	while (1)
@@ -141,16 +134,14 @@ int main(int argc, char *argv[])
 		if (event.type == Expose)
 		{
 			XClearWindow(display, window);
-
+			for (int i = 1; i < num_of_lines; i++)
-			for (int i = 1; i < num_of_lines + 1; i++)
+				XftDrawStringUtf8(draw, &color, font, padding, line_spacing * (i - 1) + text_height * i + padding, body + eols[i - 1], eols[i] - eols[i - 1]);
-			{
-				XftDrawStringUtf8(draw, &color, font, padding, 5 * (i - 1) + (font->ascent - font->descent) * i + padding, body + eols[i - 1], eols[i] - eols[i - 1]);
-			}
 		}
 		if (event.type == ButtonPress)
 			break;
 	}
 
+	free(eols);
 	XftDrawDestroy(draw);
 	XftColorFree(display, visual, colormap, &color);
 	XftFontClose(display, font);