Added better handling of failures loading icons, as Cairo generated exception were crashing app under windows. Minor fix to handling missing processing params to not alter the global defaults.
This commit is contained in:
sashavasko
189
rtgui/lwbutton.cc
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189
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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LWButton::LWButton (Cairo::RefPtr<Cairo::ImageSurface> i, int aCode, void* aData, Alignment ha, Alignment va, Glib::ustring tooltip)
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: icon(i), actionCode(aCode), actionData(aData), halign(ha), valign(va), state(Normal), toolTip(tooltip), listener(NULL) {
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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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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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