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/**
* This file is a part of the Cairo-Dock project
*
* Copyright : (C) see the 'copyright' file.
* E-mail : see the 'copyright' file.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 3
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*********************************************************************************
This file is a part of the cairo-dock program,
released under the terms of the GNU General Public License.
Written by Fabrice Rey (for any bug report, please mail me to fabounet@users.berlios.de)
*********************************************************************************/
#include <string.h>
#include <math.h>
#include <cairo-dock.h>
#include "applet-struct.h"
#include "applet-decorator-comics.h"
#define CAIRO_DIALOG_MIN_GAP 20
#define CAIRO_DIALOG_TIP_ROUNDING_MARGIN 12
#define CAIRO_DIALOG_TIP_MARGIN 25
#define CAIRO_DIALOG_TIP_BASE 25
void cd_decorator_set_frame_size_comics (CairoDialog *pDialog)
{
int iMargin = .5 * myConfig.iComicsLineWidth + (1. - sqrt (2) / 2) * myConfig.iComicsRadius;
pDialog->iRightMargin = iMargin;
pDialog->iLeftMargin = iMargin;
pDialog->iTopMargin = iMargin;
pDialog->iBottomMargin = iMargin;
pDialog->iMinBottomGap = CAIRO_DIALOG_MIN_GAP;
pDialog->iMinFrameWidth = CAIRO_DIALOG_TIP_MARGIN + CAIRO_DIALOG_TIP_ROUNDING_MARGIN + CAIRO_DIALOG_TIP_BASE; // dans l'ordre.
pDialog->fAlign = 0.; // la pointe colle au bord du dialogue.
pDialog->fReflectAlpha = 0.; // pas de reflet merci.
}
void cd_decorator_draw_decorations_comics (cairo_t *pCairoContext, CairoDialog *pDialog)
{
double fLineWidth = myConfig.iComicsLineWidth;
double fRadius = myConfig.iComicsRadius;
double fGapFromDock = pDialog->iDistanceToDock + .5 * fLineWidth;
double cos_gamma = 1 / sqrt (1. + 1. * (CAIRO_DIALOG_TIP_MARGIN + CAIRO_DIALOG_TIP_BASE) / fGapFromDock * (CAIRO_DIALOG_TIP_MARGIN + CAIRO_DIALOG_TIP_BASE) / fGapFromDock);
double cos_theta = 1 / sqrt (1. + 1. * CAIRO_DIALOG_TIP_MARGIN / fGapFromDock * CAIRO_DIALOG_TIP_MARGIN / fGapFromDock);
double fTipHeight = fGapFromDock / (1. + fLineWidth / 2. / CAIRO_DIALOG_TIP_BASE * (1./cos_gamma + 1./cos_theta));
//g_print ("TipHeight <- %d\n", (int)fTipHeight);
double fOffsetX = fRadius + fLineWidth / 2;
double fOffsetY = (pDialog->bDirectionUp ? fLineWidth / 2 : pDialog->iHeight - fLineWidth / 2);
int sens = (pDialog->bDirectionUp ? 1 : -1);
cairo_move_to (pCairoContext, fOffsetX, fOffsetY);
//g_print (" fOffsetX : %.2f; fOffsetY : %.2f\n", fOffsetX, fOffsetY);
int iWidth = pDialog->iWidth;
cairo_rel_line_to (pCairoContext, iWidth - (2 * fRadius + fLineWidth), 0);
// Coin haut droit.
cairo_rel_curve_to (pCairoContext,
0, 0,
fRadius, 0,
fRadius, sens * fRadius);
cairo_rel_line_to (pCairoContext, 0, sens * (pDialog->iBubbleHeight + pDialog->iTopMargin + pDialog->iBottomMargin - (2 * fRadius + fLineWidth)));
// Coin bas droit.
cairo_rel_curve_to (pCairoContext,
0, 0,
0, sens * fRadius,
-fRadius, sens * fRadius);
// La pointe.
double fDeltaMargin;
if (pDialog->bRight)
{
fDeltaMargin = MAX (0, pDialog->iAimedX - pDialog->iPositionX - fRadius - fLineWidth / 2);
//g_print ("fDeltaMargin : %.2f\n", fDeltaMargin);
cairo_rel_line_to (pCairoContext, -iWidth + fDeltaMargin + fLineWidth + 2 * fRadius + CAIRO_DIALOG_TIP_MARGIN + CAIRO_DIALOG_TIP_BASE + CAIRO_DIALOG_TIP_ROUNDING_MARGIN , 0);
cairo_rel_curve_to (pCairoContext,
0, 0,
- CAIRO_DIALOG_TIP_ROUNDING_MARGIN, 0,
- (CAIRO_DIALOG_TIP_ROUNDING_MARGIN + CAIRO_DIALOG_TIP_MARGIN + CAIRO_DIALOG_TIP_BASE), sens * fTipHeight);
cairo_rel_curve_to (pCairoContext,
0, 0,
CAIRO_DIALOG_TIP_MARGIN, - sens * fTipHeight,
CAIRO_DIALOG_TIP_MARGIN - CAIRO_DIALOG_TIP_ROUNDING_MARGIN, - sens * fTipHeight);
cairo_rel_line_to (pCairoContext, - CAIRO_DIALOG_TIP_MARGIN - fDeltaMargin + CAIRO_DIALOG_TIP_ROUNDING_MARGIN, 0);
}
else
{
fDeltaMargin = MAX (0, MIN (- CAIRO_DIALOG_TIP_MARGIN - CAIRO_DIALOG_TIP_ROUNDING_MARGIN - CAIRO_DIALOG_TIP_BASE - fRadius - fLineWidth / 2, pDialog->iPositionX - pDialog->iAimedX - fRadius - fLineWidth / 2) + pDialog->iWidth);
//g_print ("fDeltaMargin : %.2f / %d\n", fDeltaMargin, pDialog->iWidth);
cairo_rel_line_to (pCairoContext, - (CAIRO_DIALOG_TIP_MARGIN + fDeltaMargin) + CAIRO_DIALOG_TIP_ROUNDING_MARGIN, 0);
cairo_rel_curve_to (pCairoContext,
0, 0,
-CAIRO_DIALOG_TIP_ROUNDING_MARGIN, 0,
CAIRO_DIALOG_TIP_MARGIN - CAIRO_DIALOG_TIP_ROUNDING_MARGIN, sens * fTipHeight);
cairo_rel_curve_to (pCairoContext,
0, 0,
- (CAIRO_DIALOG_TIP_MARGIN + CAIRO_DIALOG_TIP_BASE), - sens * fTipHeight,
- (CAIRO_DIALOG_TIP_MARGIN + CAIRO_DIALOG_TIP_BASE) - CAIRO_DIALOG_TIP_ROUNDING_MARGIN, - sens * fTipHeight);
cairo_rel_line_to (pCairoContext, -iWidth + fDeltaMargin + fLineWidth + 2 * fRadius + CAIRO_DIALOG_TIP_MARGIN + CAIRO_DIALOG_TIP_BASE + CAIRO_DIALOG_TIP_ROUNDING_MARGIN, 0);
}
// Coin bas gauche.
cairo_rel_curve_to (pCairoContext,
0, 0,
-fRadius, 0,
-fRadius, -sens * fRadius);
cairo_rel_line_to (pCairoContext, 0, - sens * (pDialog->iBubbleHeight + pDialog->iTopMargin + pDialog->iBottomMargin - (2 * fRadius + fLineWidth)));
// Coin haut gauche.
cairo_rel_curve_to (pCairoContext,
0, 0,
0, -sens * fRadius,
fRadius, -sens * fRadius);
if (fRadius < 1)
cairo_close_path (pCairoContext);
cairo_set_source_rgba (pCairoContext, myDialogs.fDialogColor[0], myDialogs.fDialogColor[1], myDialogs.fDialogColor[2], myDialogs.fDialogColor[3]);
cairo_fill_preserve (pCairoContext);
cairo_set_line_width (pCairoContext, fLineWidth);
cairo_set_source_rgba (pCairoContext, myConfig.fComicsLineColor[0], myConfig.fComicsLineColor[1], myConfig.fComicsLineColor[2], myConfig.fComicsLineColor[3]);
cairo_stroke (pCairoContext);
}
void cd_decorator_register_comics (void)
{
CairoDialogDecorator *pDecorator = g_new (CairoDialogDecorator, 1);
pDecorator->set_size = cd_decorator_set_frame_size_comics;
pDecorator->render = cd_decorator_draw_decorations_comics;
pDecorator->render_opengl = NULL;
pDecorator->cDisplayedName = D_ (MY_APPLET_DECORATOR_COMICS_NAME);
cairo_dock_register_dialog_decorator (MY_APPLET_DECORATOR_COMICS_NAME, pDecorator);
}
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