diff options
Diffstat (limited to 'src/dropper-context.cpp')
| -rw-r--r-- | src/dropper-context.cpp | 414 |
1 files changed, 0 insertions, 414 deletions
diff --git a/src/dropper-context.cpp b/src/dropper-context.cpp deleted file mode 100644 index cf2f6b6c9..000000000 --- a/src/dropper-context.cpp +++ /dev/null @@ -1,414 +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/i18n.h> -#include <gdk/gdk.h> -#include <gdk/gdkkeysyms.h> -#include <2geom/transforms.h> -#include <2geom/circle.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 "sp-cursor.h" -#include "desktop.h" -#include "desktop-handles.h" -#include "selection.h" -#include "document.h" -#include "document-undo.h" - -#include "pixmaps/cursor-dropper-f.xpm" -#include "pixmaps/cursor-dropper-s.xpm" - -#include "dropper-context.h" -#include "message-context.h" -#include "verbs.h" -#include "event-context.h" - -using Inkscape::DocumentUndo; - -static GdkCursor *cursor_dropper_fill = NULL; -static GdkCursor *cursor_dropper_stroke = NULL; - -#include "tool-factory.h" - -namespace Inkscape { -namespace UI { -namespace Tools { - -namespace { - ToolBase* createDropperContext() { - return new DropperTool(); - } - - bool dropperContextRegistered = ToolFactory::instance().registerObject("/tools/dropper", createDropperContext); -} - -const std::string& DropperTool::getPrefsPath() { - return DropperTool::prefsPath; -} - -const std::string DropperTool::prefsPath = "/tools/dropper"; - -DropperTool::DropperTool() : ToolBase() { - this->R = 0; - this->G = 0; - this->B = 0; - this->alpha = 0; - this->dragging = false; - - this->grabbed = 0; - this->area = 0; - this->centre = Geom::Point(0, 0); - - this->cursor_shape = cursor_dropper_f_xpm; - this->hot_x = 7; - this->hot_y = 7; - - cursor_dropper_fill = sp_cursor_new_from_xpm(cursor_dropper_f_xpm , 7, 7); - cursor_dropper_stroke = sp_cursor_new_from_xpm(cursor_dropper_s_xpm , 7, 7); -} - -DropperTool::~DropperTool() { -} - -void DropperTool::setup() { - ToolBase::setup(); - - /* TODO: have a look at CalligraphicTool::setup where the same is done.. generalize? */ - Geom::PathVector path; - Geom::Circle(0, 0, 1).getPath(path); - - SPCurve *c = new SPCurve(path); - - this->area = sp_canvas_bpath_new(sp_desktop_controls(this->desktop), c); - - c->unref(); - - sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(this->area), 0x00000000,(SPWindRule)0); - sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(this->area), 0x0000007f, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT); - sp_canvas_item_hide(this->area); - - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - - if (prefs->getBool("/tools/dropper/selcue")) { - this->enableSelectionCue(); - } - - if (prefs->getBool("/tools/dropper/gradientdrag")) { - this->enableGrDrag(); - } -} - -void DropperTool::finish() { - this->enableGrDrag(false); - - if (this->grabbed) { - sp_canvas_item_ungrab(this->grabbed, GDK_CURRENT_TIME); - this->grabbed = NULL; - } - - if (this->area) { - sp_canvas_item_destroy(this->area); - this->area = NULL; - } - - if (cursor_dropper_fill) { -#if GTK_CHECK_VERSION(3,0,0) - g_object_unref(cursor_dropper_fill); -#else - gdk_cursor_unref (cursor_dropper_fill); -#endif - cursor_dropper_fill = NULL; - } - - if (cursor_dropper_stroke) { -#if GTK_CHECK_VERSION(3,0,0) - g_object_unref(cursor_dropper_stroke); -#else - gdk_cursor_unref (cursor_dropper_stroke); -#endif - cursor_dropper_fill = NULL; - } -} - -/** - * Returns the current dropper context color. - */ -guint32 DropperTool::get_color() { - 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(this->R, - this->G, - this->B, - (pick == SP_DROPPER_PICK_ACTUAL && setalpha) ? this->alpha : 1.0); -} - -bool DropperTool::root_handler(GdkEvent* event) { - Inkscape::Preferences *prefs = Inkscape::Preferences::get(); - - int ret = FALSE; - - 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 && !this->space_panning) { - this->centre = Geom::Point(event->button.x, event->button.y); - this->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); - this->grabbed = SP_CANVAS_ITEM(desktop->acetate); - - break; - case GDK_MOTION_NOTIFY: - if (event->motion.state & GDK_BUTTON2_MASK || event->motion.state & GDK_BUTTON3_MASK) { - // pass on middle and right drag - ret = FALSE; - break; - } else if (!this->space_panning) { - // otherwise, constantly calculate color no matter is any button pressed or not - - // If one time pick with stroke set the pixmap - if (prefs->getBool("/tools/dropper/onetimepick", false) && prefs->getInt("/dialogs/fillstroke/page", 0) == 1) { - //TODO Only set when not set already - GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(sp_desktop_canvas(desktop))); - gdk_window_set_cursor(window, cursor_dropper_stroke); - } - - double rw = 0.0; - double R(0), G(0), B(0), A(0); - - if (this->dragging) { - // calculate average - - // radius - rw = std::min(Geom::L2(Geom::Point(event->button.x, event->button.y) - this->centre), 400.0); - - if (rw == 0) { // happens sometimes, little idea why... - break; - } - - Geom::Point const cd = desktop->w2d(this->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(this->area, sm); - sp_canvas_item_show(this->area); - - /* Get buffer */ - Geom::Rect r(this->centre, this->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 - this->R = R; - this->G = G; - this->B = B; - this->alpha = A; - - // status message - double alpha_to_set = setalpha? this->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 = this->dragging ? g_strdup_printf(_(", averaged with radius %d"), (int) rw) : g_strdup_printf("%s", _(" under cursor")); - // message, to show in the statusbar - const gchar *message = this->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"); - - this->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 && !this->space_panning) { - sp_canvas_item_hide(this->area); - this->dragging = false; - - if (this->grabbed) { - sp_canvas_item_ungrab(this->grabbed, event->button.time); - this->grabbed = NULL; - } - - double alpha_to_set = setalpha? this->alpha : 1.0; - - bool fill = !(event->button.state & GDK_SHIFT_MASK); // Stroke if Shift key held - - if (prefs->getBool("/tools/dropper/onetimepick", false)) { - // "One time" pick from Fill/Stroke dialog stroke page, always apply fill or stroke (ignore <Shift> key) - fill = (prefs->getInt("/dialogs/fillstroke/page", 0) == 0) ? true : false; - } - - // do the actual color setting - sp_desktop_set_color(desktop, - (event->button.state & GDK_MOD1_MASK)? - ColorRGBA(1 - this->R, 1 - this->G, 1 - this->B, alpha_to_set) : ColorRGBA(this->R, this->G, this->B, alpha_to_set), - false, fill); - - // REJON: set aux. toolbar input to hex color! - - if (event->button.state & GDK_SHIFT_MASK) { - GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(sp_desktop_canvas(desktop))); - gdk_window_set_cursor(window, cursor_dropper_stroke); - } - - if (!(sp_desktop_selection(desktop)->isEmpty())) { - DocumentUndo::done(sp_desktop_document(desktop), SP_VERB_CONTEXT_DROPPER, - _("Set picked color")); - } - - if (prefs->getBool("/tools/dropper/onetimepick", false)) { - prefs->setBool("/tools/dropper/onetimepick", false); - sp_toggle_dropper(desktop); - } - - 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(event)) { - ret = TRUE; - } - break; - - case GDK_KEY_Escape: - sp_desktop_selection(desktop)->clear(); - case GDK_KEY_Shift_L: - case GDK_KEY_Shift_R: - if (!desktop->isWaitingCursor() && !prefs->getBool("/tools/dropper/onetimepick", false)) { - GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(sp_desktop_canvas(desktop))); - gdk_window_set_cursor(window, cursor_dropper_stroke); - } - - break; - default: - break; - } - break; - - case GDK_KEY_RELEASE: - switch (get_group0_keyval(&event->key)) { - case GDK_KEY_Shift_L: - case GDK_KEY_Shift_R: - if (!desktop->isWaitingCursor() && !prefs->getBool("/tools/dropper/onetimepick", false)) { - GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(sp_desktop_canvas(desktop))); - gdk_window_set_cursor(window, cursor_dropper_fill); - } - break; - - default: - break; - } - break; - - default: - break; - } - - if (!ret) { - ret = ToolBase::root_handler(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 : |