From 8122329533a6186f45f8cf3211c7ef9fda37bd19 Mon Sep 17 00:00:00 2001 From: Josh Blum Date: Sat, 5 Dec 2009 17:44:12 -0500 Subject: [PATCH] Created a pixmap rotation routine in Utils for handling those rotated labels. The rotation is now performed by the gtk pixbuf class and not manually in python. In addition, the block and port classes now draw from pixmaps and not from images. Pixmaps are server-side objects, where images are client-side (meaning: possible speed-up). --- grc/gui/Block.py | 13 ++++++------- grc/gui/Port.py | 13 ++++++------- grc/gui/Utils.py | 23 +++++++++++++++++++++++ 3 files changed, 35 insertions(+), 14 deletions(-) diff --git a/grc/gui/Block.py b/grc/gui/Block.py index bed50de9..27143e07 100644 --- a/grc/gui/Block.py +++ b/grc/gui/Block.py @@ -155,12 +155,11 @@ class Block(Element): else: w_off = 0 pixmap.draw_layout(gc, w_off, h_off, layout) h_off = h + h_off + LABEL_SEPARATION - #create vertical and horizontal images - self.horizontal_label = image = pixmap.get_image(0, 0, width, height) + #create vertical and horizontal pixmaps + self.horizontal_label = pixmap if self.is_vertical(): - self.vertical_label = vimage = gtk.gdk.Image(gtk.gdk.IMAGE_NORMAL, pixmap.get_visual(), height, width) - for i in range(width): - for j in range(height): vimage.put_pixel(j, width-i-1, image.get_pixel(i, j)) + self.vertical_label = self.get_parent().new_pixmap(height, width) + Utils.rotate_pixmap(gc, self.horizontal_label, self.vertical_label) #calculate width and height needed self.W = self.label_width + 2*BLOCK_LABEL_PADDING self.H = max(*( @@ -183,9 +182,9 @@ class Block(Element): ) #draw label image if self.is_horizontal(): - window.draw_image(gc, self.horizontal_label, 0, 0, x+BLOCK_LABEL_PADDING, y+(self.H-self.label_height)/2, -1, -1) + window.draw_drawable(gc, self.horizontal_label, 0, 0, x+BLOCK_LABEL_PADDING, y+(self.H-self.label_height)/2, -1, -1) elif self.is_vertical(): - window.draw_image(gc, self.vertical_label, 0, 0, x+(self.H-self.label_height)/2, y+BLOCK_LABEL_PADDING, -1, -1) + window.draw_drawable(gc, self.vertical_label, 0, 0, x+(self.H-self.label_height)/2, y+BLOCK_LABEL_PADDING, -1, -1) #draw ports for port in self.get_ports(): port.draw(gc, window) diff --git a/grc/gui/Port.py b/grc/gui/Port.py index 6763f6cb..2896d04c 100644 --- a/grc/gui/Port.py +++ b/grc/gui/Port.py @@ -97,12 +97,11 @@ class Port(Element): gc.set_foreground(self._bg_color) pixmap.draw_rectangle(gc, True, 0, 0, self.w, self.h) pixmap.draw_layout(gc, 0, 0, layout) - #create the images - self.horizontal_label = image = pixmap.get_image(0, 0, self.w, self.h) + #create vertical and horizontal pixmaps + self.horizontal_label = pixmap if self.is_vertical(): - self.vertical_label = vimage = gtk.gdk.Image(gtk.gdk.IMAGE_NORMAL, pixmap.get_visual(), self.h, self.w) - for i in range(self.w): - for j in range(self.h): vimage.put_pixel(j, self.w-i-1, image.get_pixel(i, j)) + self.vertical_label = self.get_parent().get_parent().new_pixmap(self.h, self.w) + Utils.rotate_pixmap(gc, self.horizontal_label, self.vertical_label) def draw(self, gc, window): """ @@ -117,9 +116,9 @@ class Port(Element): X,Y = self.get_coordinate() (x,y),(w,h) = self._areas_list[0] #use the first area's sizes to place the labels if self.is_horizontal(): - window.draw_image(gc, self.horizontal_label, 0, 0, x+X+(self.W-self.w)/2, y+Y+(self.H-self.h)/2, -1, -1) + window.draw_drawable(gc, self.horizontal_label, 0, 0, x+X+(self.W-self.w)/2, y+Y+(self.H-self.h)/2, -1, -1) elif self.is_vertical(): - window.draw_image(gc, self.vertical_label, 0, 0, x+X+(self.H-self.h)/2, y+Y+(self.W-self.w)/2, -1, -1) + window.draw_drawable(gc, self.vertical_label, 0, 0, x+X+(self.H-self.h)/2, y+Y+(self.W-self.w)/2, -1, -1) def get_connector_coordinate(self): """ diff --git a/grc/gui/Utils.py b/grc/gui/Utils.py index 83036a4b..b5489d56 100644 --- a/grc/gui/Utils.py +++ b/grc/gui/Utils.py @@ -19,8 +19,31 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA from Constants import POSSIBLE_ROTATIONS from Cheetah.Template import Template +import pygtk +pygtk.require('2.0') +import gtk import gobject +def rotate_pixmap(gc, src_pixmap, dst_pixmap, angle=gtk.gdk.PIXBUF_ROTATE_COUNTERCLOCKWISE): + """ + Load the destination pixmap with a rotated version of the source pixmap. + The source pixmap will be loaded into a pixbuf, rotated, and drawn to the destination pixmap. + The pixbuf is a client-side drawable, where a pixmap is a server-side drawable. + @param gc the graphics context + @param src_pixmap the source pixmap + @param dst_pixmap the destination pixmap + @param angle the angle to rotate by + """ + width, height = src_pixmap.get_size() + pixbuf = gtk.gdk.Pixbuf( + colorspace=gtk.gdk.COLORSPACE_RGB, + has_alpha=False, bits_per_sample=8, + width=width, height=height, + ) + pixbuf.get_from_drawable(src_pixmap, src_pixmap.get_colormap(), 0, 0, 0, 0, -1, -1) + pixbuf = pixbuf.rotate_simple(angle) + dst_pixmap.draw_pixbuf(gc, pixbuf, 0, 0, 0, 0) + def get_rotated_coordinate(coor, rotation): """ Rotate the coordinate by the given rotation. -- 2.39.5