Pipette and "On Preview Widgets" branch. See issue 227
The pipette part is already working quite nice but need to be finished. The widgets part needs more work...
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Hombre
191
rtgui/lwbutton.cc
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191
rtgui/lwbutton.cc
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/*
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* This file is part of RawTherapee.
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*
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* Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
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*
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* RawTherapee is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* RawTherapee is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with RawTherapee. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "lwbutton.h"
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#include "guiutils.h"
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LWButton::LWButton (Cairo::RefPtr<Cairo::ImageSurface> i, int aCode, void* aData, Alignment ha, Alignment va, Glib::ustring tooltip)
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: halign(ha), valign(va), icon(i), state(Normal), listener(NULL), actionCode(aCode), actionData(aData), toolTip(tooltip) {
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if (i) {
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w = i->get_width () + 2;
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h = i->get_height () + 2;
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}
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else
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w = h = 2;
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}
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void LWButton::getSize (int& minw, int& minh) {
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minw = w;
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minh = h;
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}
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void LWButton::setPosition (int x, int y) {
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xpos = x;
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ypos = y;
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}
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void LWButton::getPosition (int& x, int& y) {
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x = xpos;
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y = ypos;
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}
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void LWButton::setIcon (Cairo::RefPtr<Cairo::ImageSurface> i) {
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icon = i;
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if (i) {
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w = i->get_width () + 2;
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h = i->get_height () + 2;
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}
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else
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w = h = 2;
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}
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Cairo::RefPtr<Cairo::ImageSurface> LWButton::getIcon () {
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return icon;
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}
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void LWButton::setColors (const Gdk::Color& bg, const Gdk::Color& fg) {
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bgr = bg.get_red_p ();
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bgg = bg.get_green_p ();
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bgb = bg.get_blue_p ();
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fgr = fg.get_red_p ();
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fgg = fg.get_green_p ();
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fgb = fg.get_blue_p ();
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}
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bool LWButton::inside (int x, int y) {
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return x>xpos && x<xpos+w && y>ypos && y<ypos+h;
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}
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bool LWButton::motionNotify (int x, int y) {
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bool in = inside (x, y);
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State nstate = state;
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if (state==Normal && in)
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nstate = Over;
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else if (state==Over && !in)
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nstate = Normal;
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else if (state==Pressed_In && !in)
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nstate = Pressed_Out;
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else if (state==Pressed_Out && in)
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nstate = Pressed_In;
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if (state!=nstate) {
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state = nstate;
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if (listener)
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listener->redrawNeeded (this);
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return true;
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}
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return in;
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}
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bool LWButton::pressNotify (int x, int y) {
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bool in = inside (x, y);
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State nstate = state;
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if (in && (state==Normal || state==Over || state==Pressed_Out))
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nstate = Pressed_In;
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else if (!in && state==Pressed_In)
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nstate = Normal;
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if (state!=nstate) {
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state = nstate;
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if (listener)
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listener->redrawNeeded (this);
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return true;
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}
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return in;
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}
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bool LWButton::releaseNotify (int x, int y) {
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bool in = inside (x, y);
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State nstate = state;
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bool action = false;
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if (in && (state==Pressed_In || state==Pressed_Out)) {
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nstate = Over;
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action = true;
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}
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else
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nstate = Normal;
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bool ret = action;
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if (state!=nstate) {
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state = nstate;
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if (listener)
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listener->redrawNeeded (this);
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ret = true;
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}
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if (action && listener)
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listener->buttonPressed (this, actionCode, actionData);
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return ret;
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}
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void LWButton::redraw (Cairo::RefPtr<Cairo::Context> context) {
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GThreadLock lock; // All GUI acces from idle_add callbacks or separate thread HAVE to be protected
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context->set_line_width (1.0);
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context->set_antialias (Cairo::ANTIALIAS_SUBPIXEL);
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context->rectangle (xpos+0.5, ypos+0.5, w-1.0, h-1.0);
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if (state==Pressed_In)
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context->set_source_rgb (fgr, fgg, fgb);
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else
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context->set_source_rgba (bgr, bgg, bgb, 0);
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context->fill_preserve ();
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if (state==Over)
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context->set_source_rgb (fgr, fgg, fgb);
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else
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context->set_source_rgba (bgr, bgg, bgb, 0);
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context->stroke ();
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int dilat = 1;
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if (state==Pressed_In)
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dilat++;
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if (icon) {
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context->set_source (icon, xpos+dilat, ypos+dilat);
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context->paint ();
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}
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}
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void LWButton::getAlignment (Alignment& ha, Alignment& va) {
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ha = halign;
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va = valign;
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}
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Glib::ustring LWButton::getToolTip (int x, int y) {
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if (inside (x, y))
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return toolTip;
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else
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return "";
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}
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void LWButton::setToolTip (const Glib::ustring& tooltip) {
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toolTip = tooltip;
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}
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