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callback for drawing

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This commit is contained in:
Moritz Lipp 2009-12-28 21:18:54 +01:00
parent be0445110d
commit 1d59480faa
1 changed files with 64 additions and 4 deletions
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68
zathura.c
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@ -111,6 +111,7 @@ typedef struct
{
PopplerPage *page;
cairo_surface_t *surface;
GtkWidget *drawing_area;
} Page;
/* zathura */
@ -172,6 +173,7 @@ struct
int number_of_pages;
int scale;
int rotate;
pthread_t render_thread;
} PDF;
} Zathura;
@ -228,6 +230,7 @@ gboolean scmd_search(char*, Argument*);
/* callback declarations */
gboolean cb_destroy(GtkWidget*, gpointer);
gboolean cb_draw(GtkWidget*, int*);
gboolean cb_view_kb_pressed(GtkWidget*, GdkEventKey*, gpointer);
gboolean cb_inputbar_kb_pressed(GtkWidget*, GdkEventKey*, gpointer);
gboolean cb_inputbar_activate(GtkEntry*, gpointer);
@ -401,6 +404,9 @@ void draw(int page_id)
cairo_restore(cairo);
cairo_destroy(cairo);
gtk_widget_set_size_request(current_page->drawing_area, width, height);
gtk_widget_queue_draw(current_page->drawing_area);
}
void
@ -564,7 +570,10 @@ render(void* parameter)
int page;
for(page = 0; page < Zathura.PDF.number_of_pages; page++)
{
printf("%d\n", page);
draw(page);
}
pthread_exit(NULL);
}
@ -1032,13 +1041,16 @@ cmd_open(int argc, char** argv)
for(i = 0; i < Zathura.PDF.number_of_pages; i++)
{
Zathura.PDF.pages[i] = malloc(sizeof(Page));
Zathura.PDF.pages[i]->page = poppler_document_get_page(Zathura.PDF.document, i);
Zathura.PDF.pages[i]->surface = NULL;
Zathura.PDF.pages[i]->page = poppler_document_get_page(Zathura.PDF.document, i);
Zathura.PDF.pages[i]->surface = NULL;
Zathura.PDF.pages[i]->drawing_area = gtk_drawing_area_new();
gtk_widget_modify_bg(GTK_WIDGET(Zathura.PDF.pages[i]->drawing_area), GTK_STATE_NORMAL, &(Zathura.Style.default_bg));
g_signal_connect(G_OBJECT(Zathura.PDF.pages[i]->drawing_area), "expose-event", G_CALLBACK(cb_draw), (gpointer) &i);
}
/* render pages */
pthread_t render_thread;
pthread_create(&render_thread, NULL, render, NULL);
pthread_create(&(Zathura.PDF.render_thread), NULL, render, NULL);
set_page(0);
update_status();
@ -1191,6 +1203,10 @@ bcmd_zoom(char* buffer, Argument* argument)
else
Zathura.PDF.scale = 100;
if(Zathura.PDF.render_thread)
pthread_cancel(Zathura.PDF.render_thread);
pthread_create(&(Zathura.PDF.render_thread), NULL, render, NULL);
update_status();
}
@ -1215,6 +1231,50 @@ cb_destroy(GtkWidget* widget, gpointer data)
return TRUE;
}
gboolean cb_draw(GtkWidget* widget, int* data)
{
int page_id = *data;
gdk_window_clear(widget->window);
cairo_t *cairo = gdk_cairo_create(widget->window);
double page_width, page_height, width, height;
double scale = ((double) Zathura.PDF.scale / 100.0);
poppler_page_get_size(Zathura.PDF.pages[page_id]->page, &page_width, &page_height);
if(Zathura.PDF.rotate == 0 || Zathura.PDF.rotate == 180)
{
width = page_width * scale;
height = page_height * scale;
}
else
{
width = page_height * scale;
height = page_width * scale;
}
int window_x, window_y;
gdk_drawable_get_size(widget->window, &window_x, &window_y);
int offset_x, offset_y;
if (window_x > width)
offset_x = (window_x - width) / 2;
else
offset_x = 0;
if (window_y > height)
offset_y = (window_y - height) / 2;
else
offset_y = 0;
cairo_set_source_surface(cairo, Zathura.PDF.pages[page_id]->surface, offset_x, offset_y);
cairo_paint(cairo);
cairo_destroy(cairo);
return TRUE;
}
gboolean
cb_view_kb_pressed(GtkWidget *widget, GdkEventKey *event, gpointer data)
{