diff options
Diffstat (limited to 'src/dropper-context.cpp')
| -rw-r--r-- | src/dropper-context.cpp | 373 |
1 files changed, 0 insertions, 373 deletions
diff --git a/src/dropper-context.cpp b/src/dropper-context.cpp deleted file mode 100644 index be0379813..000000000 --- a/src/dropper-context.cpp +++ /dev/null @@ -1,373 +0,0 @@ -/* - * Tool for picking colors from drawing - * - * Authors: - * Lauris Kaplinski <lauris@kaplinski.com> - * bulia byak <buliabyak@users.sf.net> - * Abhishek Sharma - * - * Copyright (C) 1999-2005 Authors - * - * Released under GNU GPL, read the file 'COPYING' for more information - */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <glibmm.h> -#include <glibmm/i18n.h> -#include <gdk/gdk.h> -#include <gdk/gdkkeysyms.h> -#include <2geom/transforms.h> - -#include "macros.h" -#include "display/canvas-bpath.h" -#include "display/canvas-arena.h" -#include "display/curve.h" -#include "display/cairo-utils.h" -#include "svg/svg-color.h" -#include "color.h" -#include "color-rgba.h" -#include "desktop-style.h" -#include "preferences.h" -#include "sp-namedview.h" -#include "desktop.h" -#include "desktop-handles.h" -#include "selection.h" -#include "document.h" -#include "document-undo.h" - -#include "pixmaps/cursor-dropper.xpm" - -#include "dropper-context.h" -#include "message-context.h" -#include "verbs.h" - -#if !GTK_CHECK_VERSION(2,22,0) -#include "compat-key-syms.h" -#endif - -using Inkscape::DocumentUndo; - -static void sp_dropper_context_class_init(SPDropperContextClass *klass); -static void sp_dropper_context_init(SPDropperContext *dc); - -static void sp_dropper_context_setup(SPEventContext *ec); -static void sp_dropper_context_finish(SPEventContext *ec); - -static gint sp_dropper_context_root_handler(SPEventContext *ec, GdkEvent * event); - -static SPEventContextClass *parent_class; - -GType sp_dropper_context_get_type() -{ - static GType type = 0; - if (!type) { - GTypeInfo info = { - sizeof(SPDropperContextClass), - NULL, NULL, - (GClassInitFunc) sp_dropper_context_class_init, - NULL, NULL, - sizeof(SPDropperContext), - 4, - (GInstanceInitFunc) sp_dropper_context_init, - NULL, /* value_table */ - }; - type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPDropperContext", &info, (GTypeFlags) 0); - } - return type; -} - -static void sp_dropper_context_class_init(SPDropperContextClass *klass) -{ - SPEventContextClass *ec_class = (SPEventContextClass *) klass; - - parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass); - - ec_class->setup = sp_dropper_context_setup; - ec_class->finish = sp_dropper_context_finish; - ec_class->root_handler = sp_dropper_context_root_handler; -} - -static void sp_dropper_context_init(SPDropperContext *dc) -{ - SPEventContext *event_context = SP_EVENT_CONTEXT(dc); - event_context->cursor_shape = cursor_dropper_xpm; - event_context->hot_x = 7; - event_context->hot_y = 7; -} - -static void sp_dropper_context_setup(SPEventContext *ec) -{ - SPDropperContext *dc = SP_DROPPER_CONTEXT(ec); - - if (((SPEventContextClass *) parent_class)->setup) { - ((SPEventContextClass *) parent_class)->setup(ec); - } - - /* TODO: have a look at sp_dyna_draw_context_setup where the same is done.. generalize? at least make it an arcto! */ - SPCurve *c = new SPCurve(); - const double C1 = 0.552; - c->moveto(-1,0); - c->curveto(-1, C1, -C1, 1, 0, 1 ); - c->curveto(C1, 1, 1, C1, 1, 0 ); - c->curveto(1, -C1, C1, -1, 0, -1 ); - c->curveto(-C1, -1, -1, -C1, -1, 0 ); - c->closepath(); - dc->area = sp_canvas_bpath_new(sp_desktop_controls(ec->desktop), c); - c->unref(); - sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(dc->area), 0x00000000,(SPWindRule)0); - sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(dc->area), 0x0000007f, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT); - sp_canvas_item_hide(dc->area); - - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - if (prefs->getBool("/tools/dropper/selcue")) { - ec->enableSelectionCue(); - } - - if (prefs->getBool("/tools/dropper/gradientdrag")) { - ec->enableGrDrag(); - } -} - -static void sp_dropper_context_finish(SPEventContext *ec) -{ - SPDropperContext *dc = SP_DROPPER_CONTEXT(ec); - - ec->enableGrDrag(false); - - if (dc->grabbed) { - sp_canvas_item_ungrab(dc->grabbed, GDK_CURRENT_TIME); - dc->grabbed = NULL; - } - - if (dc->area) { - gtk_object_destroy(GTK_OBJECT(dc->area)); - dc->area = NULL; - } -} - - -/** - * Returns the current dropper context icc-color. - */ -SPColor* sp_dropper_context_get_icc_color(SPEventContext */*ec*/) -{ - //TODO: implement-me! - - return 0; // At least we will cause a clean crash, instead of random corruption. -} - -/** - * Returns the current dropper context color. - */ -guint32 sp_dropper_context_get_color(SPEventContext *ec) -{ - SPDropperContext *dc = SP_DROPPER_CONTEXT(ec); - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - - int pick = prefs->getInt("/tools/dropper/pick", - SP_DROPPER_PICK_VISIBLE); - bool setalpha = prefs->getBool("/tools/dropper/setalpha", true); - - return SP_RGBA32_F_COMPOSE(dc->R, dc->G, dc->B, - (pick == SP_DROPPER_PICK_ACTUAL && setalpha) ? dc->alpha : 1.0); -} - - -static gint sp_dropper_context_root_handler(SPEventContext *event_context, GdkEvent *event) -{ - SPDropperContext *dc = (SPDropperContext *) event_context; - int ret = FALSE; - SPDesktop *desktop = event_context->desktop; - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - - int pick = prefs->getInt("/tools/dropper/pick", SP_DROPPER_PICK_VISIBLE); - bool setalpha = prefs->getBool("/tools/dropper/setalpha", true); - - switch (event->type) { - case GDK_BUTTON_PRESS: - if (event->button.button == 1 && !event_context->space_panning) { - dc->centre = Geom::Point(event->button.x, event->button.y); - dc->dragging = TRUE; - ret = TRUE; - } - - sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate), - GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK | GDK_BUTTON_PRESS_MASK, - NULL, event->button.time); - dc->grabbed = SP_CANVAS_ITEM(desktop->acetate); - - break; - case GDK_MOTION_NOTIFY: - if (event->motion.state & GDK_BUTTON2_MASK) { - // pass on middle-drag - ret = FALSE; - break; - } else if (!event_context->space_panning) { - // otherwise, constantly calculate color no matter is any button pressed or not - - double rw = 0.0; - double R(0), G(0), B(0), A(0); - - if (dc->dragging) { - // calculate average - - // radius - rw = std::min(Geom::L2(Geom::Point(event->button.x, event->button.y) - dc->centre), 400.0); - - if (rw == 0) { // happens sometimes, little idea why... - break; - } - - Geom::Point const cd = desktop->w2d(dc->centre); - Geom::Affine const w2dt = desktop->w2d(); - const double scale = rw * w2dt.descrim(); - Geom::Affine const sm( Geom::Scale(scale, scale) * Geom::Translate(cd) ); - sp_canvas_item_affine_absolute(dc->area, sm); - sp_canvas_item_show(dc->area); - - /* Get buffer */ - Geom::Rect r(dc->centre, dc->centre); - r.expandBy(rw); - if (!r.hasZeroArea()) { - Geom::IntRect area = r.roundOutwards(); - cairo_surface_t *s = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, area.width(), area.height()); - sp_canvas_arena_render_surface(SP_CANVAS_ARENA(sp_desktop_drawing(desktop)), s, area); - ink_cairo_surface_average_color_premul(s, R, G, B, A); - cairo_surface_destroy(s); - } - } else { - // pick single pixel - Geom::IntRect area = Geom::IntRect::from_xywh(floor(event->button.x), floor(event->button.y), 1, 1); - cairo_surface_t *s = cairo_image_surface_create(CAIRO_FORMAT_ARGB32, 1, 1); - sp_canvas_arena_render_surface(SP_CANVAS_ARENA(sp_desktop_drawing(desktop)), s, area); - ink_cairo_surface_average_color_premul(s, R, G, B, A); - cairo_surface_destroy(s); - } - - if (pick == SP_DROPPER_PICK_VISIBLE) { - // compose with page color - guint32 bg = sp_desktop_namedview(desktop)->pagecolor; - R = R + (SP_RGBA32_R_F(bg)) * (1 - A); - G = G + (SP_RGBA32_G_F(bg)) * (1 - A); - B = B + (SP_RGBA32_B_F(bg)) * (1 - A); - A = 1.0; - } else { - // un-premultiply color channels - if (A > 0) { - R /= A; - G /= A; - B /= A; - } - } - - if (fabs(A) < 1e-4) { - A = 0; // suppress exponentials, CSS does not allow that - } - - // remember color - dc->R = R; - dc->G = G; - dc->B = B; - dc->alpha = A; - - // status message - double alpha_to_set = setalpha? dc->alpha : 1.0; - guint32 c32 = SP_RGBA32_F_COMPOSE(R, G, B, alpha_to_set); - - gchar c[64]; - sp_svg_write_color(c, sizeof(c), c32); - - // alpha of color under cursor, to show in the statusbar - // locale-sensitive printf is OK, since this goes to the UI, not into SVG - gchar *alpha = g_strdup_printf(_(" alpha %.3g"), alpha_to_set); - // where the color is picked, to show in the statusbar - gchar *where = dc->dragging ? g_strdup_printf(_(", averaged with radius %d"), (int) rw) : g_strdup_printf(_(" under cursor")); - // message, to show in the statusbar - const gchar *message = dc->dragging ? _("<b>Release mouse</b> to set color.") : _("<b>Click</b> to set fill, <b>Shift+click</b> to set stroke; <b>drag</b> to average color in area; with <b>Alt</b> to pick inverse color; <b>Ctrl+C</b> to copy the color under mouse to clipboard"); - event_context->defaultMessageContext()->setF( - Inkscape::NORMAL_MESSAGE, - "<b>%s%s</b>%s. %s", c, - (pick == SP_DROPPER_PICK_VISIBLE)? "" : alpha, - where, message - ); - - g_free(where); - g_free(alpha); - - ret = TRUE; - } - break; - case GDK_BUTTON_RELEASE: - if (event->button.button == 1 && !event_context->space_panning) - { - sp_canvas_item_hide(dc->area); - dc->dragging = FALSE; - - if (dc->grabbed) { - sp_canvas_item_ungrab(dc->grabbed, event->button.time); - dc->grabbed = NULL; - } - - double alpha_to_set = setalpha? dc->alpha : 1.0; - - // do the actual color setting - sp_desktop_set_color(desktop, - (event->button.state & GDK_MOD1_MASK)? - ColorRGBA(1 - dc->R, 1 - dc->G, 1 - dc->B, alpha_to_set) : ColorRGBA(dc->R, dc->G, dc->B, alpha_to_set), - false, !(event->button.state & GDK_SHIFT_MASK)); - - // REJON: set aux. toolbar input to hex color! - - - if (!(sp_desktop_selection(desktop)->isEmpty())) { - DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_DROPPER, - _("Set picked color")); - } - - ret = TRUE; - } - break; - case GDK_KEY_PRESS: - switch (get_group0_keyval(&event->key)) { - case GDK_KEY_Up: - case GDK_KEY_Down: - case GDK_KEY_KP_Up: - case GDK_KEY_KP_Down: - // prevent the zoom field from activation - if (!MOD__CTRL_ONLY) { - ret = TRUE; - } - break; - case GDK_KEY_Escape: - sp_desktop_selection(desktop)->clear(); - default: - break; - } - break; - default: - break; - } - - if (!ret) { - if (((SPEventContextClass *) parent_class)->root_handler) { - ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event); - } - } - - return ret; -} - - -/* - Local Variables: - mode:c++ - c-file-style:"stroustrup" - c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) - indent-tabs-mode:nil - fill-column:99 - End: -*/ -// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 : |