[cairo-commit] cairo-demo/cairo-in-motion AUTHORS, NONE, 1.1 BUGS,
NONE, 1.1 COPYING, NONE, 1.1 ChangeLog, NONE, 1.1 INSTALL,
NONE, 1.1 Makefile, NONE, 1.1 NEWS, NONE, 1.1 README, NONE,
1.1 TODO, NONE, 1.1 cairo-in-motion.glade, NONE,
1.1 cairo-in-motion.png, NONE, 1.1 cairo-samples.cpp, NONE,
1.1 cairo-samples.h, NONE, 1.1 cairo_logo.svg, NONE,
1.1 freedesktop.svg, NONE, 1.1 gotroot.png, NONE, 1.1 home.svg,
NONE, 1.1 main.cpp, NONE, 1.1 sample-list-store.cpp, NONE,
1.1 sample-list-store.h, NONE, 1.1
Mirco Müller
commit at pdx.freedesktop.org
Fri Sep 30 03:04:13 PDT 2005
Committed by: macslow
Update of /cvs/cairo/cairo-demo/cairo-in-motion
In directory gabe:/tmp/cvs-serv23778/cairo-in-motion
Added Files:
AUTHORS BUGS COPYING ChangeLog INSTALL Makefile NEWS README
TODO cairo-in-motion.glade cairo-in-motion.png
cairo-samples.cpp cairo-samples.h cairo_logo.svg
freedesktop.svg gotroot.png home.svg main.cpp
sample-list-store.cpp sample-list-store.h
Log Message:
a little learning toy usable for testing out code-smidgens of cairo-effects
--- NEW FILE: AUTHORS ---
Mirco "MacSlow" Mueller <macslow at bangang.de>
--- NEW FILE: BUGS ---
main.cpp: on_font_set() doesn't handle all font-attributes (slant, weight)
that can be found under the sun, it's just a quick hack to get some font-
-attributes over to CairoSamples
main.cpp: I don't know how to initially highlight/select the first (or just any)
row in the samples-TreeView
dragging of the handle-points isn't implemented yet
yes, I know it's currently slow as hell
--- NEW FILE: COPYING ---
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--- NEW FILE: ChangeLog ---
2005-09-30 Mirco Mueller <macslow at bangang.de>
Made the initial release on my blog at http://macslow.mine.nu and checked
it in at cvs.cairographics.org (/cvs/cairo/cairo-demo/cairo-in-motion)
--- NEW FILE: INSTALL ---
There is no "install" make-target. Just compile it with "make" and run it from
its directory.
--- NEW FILE: Makefile ---
APP=cairo-in-motion
CC=c++
CFLAGS= -Wall -Os `pkg-config --cflags libsvg-cairo gtkmm-2.4 libglademm-2.4`
LDFLAGS= `pkg-config --libs libsvg-cairo gtkmm-2.4 libglademm-2.4`
SRC = main.cpp \
cairo-samples.cpp \
sample-list-store.cpp
OBJ = $(SRC:.cpp=.o)
all: $(APP)
$(APP): $(OBJ)
$(CC) $(LDFLAGS) $(OBJ) -o $(APP)
strip $(APP)
.cpp.o:
$(CC) $(CFLAGS) -c $< -o $@
clean:
rm -f $(OBJ) *~ $(APP)
--- NEW FILE: NEWS ---
--- NEW FILE: README ---
General Information:
"cairo in motion" came to life because I wanted to learn about cairo in the
first place. Furhtermore I wanted to give it a handy/simple UI so people
(including me) can toy around with some of cairo's attributes and settings
without messing around in the code, recompile it, test it out and so on. For
this I also sticked my nose a bit into libglademm/gtkmm.
There are three main areas in "cairo in motion". On the top-left you can
change certain attributes which are taken into account by the cairo-sample
displayed in the drawing-area on the right. Not every attribute is used by some
examples though. On the bottom-left you have a list-view with all cairo-samples
compiled into "cairo in motion". I regarded making them run-time loadable as a
bit of an overkill for such a simple testbed. The same goes for the attributes.
They aren't dynamic. One could make these two things fully dynamic of course.
Maybe I'll do that some day when I'm too bored. You can trigger the display of
one of the cairo-samples by either double-clicking with the LMB on its entry in
the list view or highlight the entry with the cursor-keys and hit RETURN to
start it. Finally there's the drawing-area on the right side. If you see
"handles" (small red spots with a black outline) in the drawing-area, you can
drag these around with the mouse (LMB-drag). Your dragging with the mouse
overrides any animation that may take place. The rest (menubar) is
selfexplanatory (I hope :)
About The Code:
main.cpp isn't that intersting and also not very elegant I admit. The main
interest is in the cairo-*.cpp/h files. I grabbed a good bit of code from the
"cairo snippets" found at:
http://cairographics.org/samples/snippets.html
In addition to that I altered some of those examples in order to have them
behave in an interactive manner and also added snippets of my own.
Library Requirements:
cairo 1.1.1 (grabbed as HEAD from cairographics.org-CVS)
libsvg 0.1.4 (grabbed as HEAD from cairographics.org-CVS)
libsvg-cairo 0.1.6 (grabbed as HEAD from cairographics.org-CVS)
gtk+ 2.8.3
gtkmm 2.8.0
libglade 2.5.1
libglademm 2.6.1
Other Stuff I Used:
g++ 4.0.0
Eclipse 3.1 (with CDT 3.0)
Fedora Core 4
If you have any questions, don't hesitate to drop me a line via eMail. And
please fix my BUGS ;-)
Share and enjoy!
Best regards...
MacSlow
--- NEW FILE: TODO ---
support for glitz-surfaces would be nice, so one can switch between "normal" and
glitz-surfaces at runtime to see the impact on performance
fps-couter
class CairoSamples should be a bit more sophisticated in dealing with the
function-pointers to all the included samples, this would also make do_sample()
a lot leaner
doing a fully dynamic (runtime-) loading of the samples would be the ultimate
goal, thus also ghosting (or hiding) those controlling widgets that don't affect
a particular sample
more cool-looking animated samples
--- NEW FILE: cairo-in-motion.glade ---
<?xml version="1.0" standalone="no"?> <!--*- mode: xml -*-->
<!DOCTYPE glade-interface SYSTEM "http://glade.gnome.org/glade-2.0.dtd">
<glade-interface>
<widget class="GtkWindow" id="mainWindow">
<property name="visible">True</property>
<property name="title" translatable="yes">cairo in motion</property>
<property name="type">GTK_WINDOW_TOPLEVEL</property>
<property name="window_position">GTK_WIN_POS_NONE</property>
<property name="modal">False</property>
<property name="resizable">True</property>
<property name="destroy_with_parent">False</property>
<property name="icon_name"></property>
<property name="decorated">True</property>
<property name="skip_taskbar_hint">False</property>
<property name="skip_pager_hint">False</property>
<property name="type_hint">GDK_WINDOW_TYPE_HINT_NORMAL</property>
<property name="gravity">GDK_GRAVITY_NORTH_WEST</property>
[...1148 lines suppressed...]
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.</property>
<property name="website">http://macslow.mine.nu</property>
<property name="website_label" translatable="yes">http://maclsow.mine.nu</property>
<property name="authors">Mirco "MacSlow" Mueller <macslow at bangang.de></property>
<property name="translator_credits" translatable="yes" comments="TRANSLATORS: Replace this string with your names, one name per line.">translator-credits</property>
<property name="logo">cairo-in-motion.png</property>
</widget>
</glade-interface>
--- NEW FILE: cairo-in-motion.png ---
(This appears to be a binary file; contents omitted.)
--- NEW FILE: cairo-samples.cpp ---
// "cairo in motion" is a testbed for animated vector-drawing
// using cairo within a gtk+-environment
//
// Copyright (C) 2005 Mirco Mueller <macslow at bangang.de>
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
[...2002 lines suppressed...]
{
if (!m_pCairoContext)
return false;
draw_background ();
cairo_move_to (m_pCairoContext, 0.3f, 0.3f);
cairo_line_to (m_pCairoContext, 0.7f, 0.3f);
cairo_line_to (m_pCairoContext, 0.5f, 0.3f);
cairo_line_to (m_pCairoContext, 0.5f, 0.7f);
cairo_set_line_width (m_pCairoContext, m_fLineWidth);
cairo_set_line_cap (m_pCairoContext, m_cairoCapStyle);
cairo_set_line_join (m_pCairoContext, m_cairoJoinStyle);
cairo_set_source_rgb (m_pCairoContext, 0.0f, 0.0f, 0.0f);
cairo_stroke (m_pCairoContext);
return true;
}
--- NEW FILE: cairo-samples.h ---
// "cairo in motion" is a testbed for animated vector-drawing
// using cairo within a gtk+-environment
//
// Copyright (C) 2005 Mirco Mueller <macslow at bangang.de>
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef _CAIROSAMPLES_H_
#define _CAIROSAMPLES_H_
#include <cairo.h>
#include <string>
#include <gdkmm.h>
#include "sample-list-store.h"
typedef struct _HandlePoint
{
double x;
double y;
} HandlePoint;
class CairoSamples
{
public:
CairoSamples ();
~CairoSamples ();
typedef struct _Entry
{
std::string name;
} Entry;
enum Sample
{
CurveRectangle = 0,
FillAndStroke,
FillAndStroke2,
Fontmania,
Gradient,
Image,
ImagePattern,
LibSVG,
MovingArc,
MovingArcNegative,
MovingCairoLogo,
MovingClip,
MovingClipImage,
MovingCurveTo,
MovingGradient,
MovingGradient2,
OperatorAdd,
OperatorAtop,
OperatorAtopReverse,
OperatorIn,
OperatorInReverse,
OperatorOut,
OperatorOutReverse,
OperatorOver,
OperatorOverReverse,
OperatorSaturate,
OperatorXor,
Path,
PatternFill,
SetLineCap,
SetLineJoin,
TextAlignCenter,
Text,
TextExtents,
XxxClipRectangle,
XxxDash,
XxxLongLines,
XxxMultiSegmentCaps,
XxxSelfIntersect,
NumberOfSamples
};
enum DashStyle
{
DashOff = 0,
Dotted,
Dashed,
DashDotDash,
DashedFunky
};
void do_animation_step ();
void set_context (cairo_t* pCairoContext);
void normalize_canvas (double fWidth, double fHeight) const;
void set_bg_svg (std::string strSVGFileName) const;
bool do_sample (Sample sample) const;
void set_cap_style (cairo_line_cap_t cairoCapStyle);
void set_join_style (cairo_line_join_t cairoJoinStyle);
void set_dash_style (DashStyle dashStyle);
void set_operator (cairo_operator_t cairoOperator);
void set_extend_mode (cairo_extend_t cairoExtendMode);
void set_filter_mode (cairo_filter_t cairoFilterMode);
void set_line_width (double fLineWidth);
void set_bg_color (Gdk::Color bgColor);
void set_font_family (std::string strFontFamily);
void set_font_size (double fFontSize);
void set_font_weight (cairo_font_weight_t cairoFontWeight);
void set_font_slant (cairo_font_slant_t cairoFontSlant);
void set_some_text (std::string strSomeText);
void set_image_file_name (std::string strFileName);
void set_svg_file_name (std::string strFileName);
void add_samples_to_list_store (SampleListStore* pSampleListStore);
std::string get_sample_name (Sample sample) const;
private:
void update_var (double* pfValue,
double fLowerLimit,
double fUpperLimit,
double* pfStep,
double fGrow,
double fShrink);
HandlePoint get_center () const;
HandlePoint get_point1 () const;
HandlePoint get_point2 () const;
HandlePoint get_point3 () const;
HandlePoint get_point4 () const;
double get_radius () const;
double get_angle_1 () const;
double get_angle_2 () const;
void draw_background () const;
void draw_background (Gdk::Color color) const;
void draw_handle (double fX, double fY) const;
void draw_handle (HandlePoint* pPoint) const;
bool sample_not_found () const;
bool curve_rectangle () const;
bool fill_and_stroke () const;
bool fill_and_stroke2 () const;
bool fontmania () const;
bool gradient () const;
bool image () const;
bool image_pattern () const;
bool libsvg () const;
bool moving_arc () const;
bool moving_arc_negative () const;
bool moving_cairo_logo () const;
bool moving_clip () const;
bool moving_clip_image () const;
bool moving_curve_to () const;
bool moving_gradient () const;
bool moving_gradient2 () const;
bool operator_add () const;
bool operator_atop () const;
bool operator_atop_reverse () const;
bool operator_in () const;
bool operator_in_reverse () const;
bool operator_out () const;
bool operator_out_reverse () const;
bool operator_over () const;
bool operator_over_reverse () const;
bool operator_saturate () const;
bool operator_xor () const;
bool path () const;
bool pattern_fill () const;
bool set_line_cap () const;
bool set_line_join () const;
bool text_align_center () const;
bool text () const;
bool text_extents () const;
bool xxx_clip_rectangle () const;
bool xxx_dash () const;
bool xxx_long_lines () const;
bool xxx_multi_segment_caps () const;
bool xxx_self_intersect () const;
protected:
HandlePoint m_center;
HandlePoint m_point1;
HandlePoint m_point2;
HandlePoint m_point3;
HandlePoint m_point4;
double m_fRadius;
double m_fAngle1;
double m_fAngle2;
double m_centerXStep;
double m_centerYStep;
double m_point1XStep;
double m_point1YStep;
double m_point2XStep;
double m_point2YStep;
double m_point3XStep;
double m_point3YStep;
double m_point4XStep;
double m_point4YStep;
double m_fRadiusStep;
double m_fAngle1Step;
double m_fAngle2Step;
cairo_t* m_pCairoContext;
cairo_line_cap_t m_cairoCapStyle;
cairo_line_join_t m_cairoJoinStyle;
DashStyle m_dashStyle;
cairo_operator_t m_cairoOperator;
cairo_extend_t m_cairoExtendMode;
cairo_filter_t m_cairoFilterMode;
double m_fLineWidth;
Gdk::Color m_bgColor;
std::string m_strFontFamily;
double m_fFontSize;
cairo_font_weight_t m_cairoFontWeight;
cairo_font_slant_t m_cairoFontSlant;
std::string m_strSomeText;
std::string m_strImageFileName;
std::string m_strSvgFileName;
std::vector<Entry> m_sampleList;
};
#endif /*_CAIROSAMPLES_H_*/
--- NEW FILE: cairo_logo.svg ---
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--- NEW FILE: main.cpp ---
// "cairo in motion" is a testbed for animated vector-drawing
// using cairo within a gtk+-environment
//
// Copyright (C) 2005 Mirco Mueller <macslow at bangang.de>
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include <libglademm/xml.h>
#include <gtkmm.h>
#include <iostream>
#include <sstream>
#include <math.h>
#include "cairo-samples.h"
#include "sample-list-store.h"
// widgets we get from the .glade file
Gtk::Window* pMainWindow = NULL;
Gtk::Dialog* pAboutDialog = NULL;
Gtk::Statusbar* pMainStatusBar = NULL;
Gtk::ComboBox* pCapStyleComboBox = NULL;
Gtk::ComboBox* pJoinStyleComboBox = NULL;
Gtk::ComboBox* pDashStyleComboBox = NULL;
Gtk::ComboBox* pOperatorComboBox = NULL;
Gtk::ComboBox* pExtendModeComboBox = NULL;
Gtk::ComboBox* pFilterModeComboBox = NULL;
Gtk::HScale* pLineWidthHScale = NULL;
Gtk::ColorButton* pBGColorColorButton = NULL;
Gtk::ToggleButton* pAnimateToggleButton = NULL;
Gtk::FontButton* pFontFontButton = NULL;
Gtk::TreeView* pSamplesTreeView = NULL;
Gtk::DrawingArea* pMainDrawingArea = NULL;
Gtk::Entry* pTextEntry = NULL;
Gtk::FileChooserButton* pImageFileFileChooserButton = NULL;
Gtk::FileChooserButton* pSvgFileFileChooserButton = NULL;
// those here are just used to give some proper default values to everything
// later during runtime most of those here aren't touch anymore... rather the
// values are directly passed to the class CairoSamples
cairo_line_cap_t m_capStyle = CAIRO_LINE_CAP_ROUND;
cairo_line_join_t m_joinStyle = CAIRO_LINE_JOIN_ROUND;
CairoSamples::DashStyle m_dashStyle = CairoSamples::DashOff;
cairo_operator_t m_operator = CAIRO_OPERATOR_CLEAR;
cairo_extend_t m_extendMode = CAIRO_EXTEND_REPEAT;
cairo_filter_t m_filterMode = CAIRO_FILTER_GOOD;
double m_fLineWidth = 0.01f;
Gdk::Color m_bgColor ("#B0B0B0");
std::string m_strFontFamily = "Sans";
int m_iFontSize = 35;
cairo_font_weight_t m_fontWeight = CAIRO_FONT_WEIGHT_NORMAL;
cairo_font_slant_t m_fontSlant = CAIRO_FONT_SLANT_NORMAL;
std::string m_strImageFileName = "/home/mirco/workspace/cairo-in-motion/gotroot.png";
std::string m_strSvgFileName = "/home/mirco/workspace/cairo-in-motion/freedesktop.svg";
std::string m_strSomeText = "laber";
// additional stuff we need/use for the cairo-drawing
Gdk::Window* m_pGdkWindow = NULL;
bool m_bAnimate = true;
cairo_t* m_pCairoContext = NULL;
CairoSamples* m_pCairoSamples = NULL;
SampleListStore* m_pSampleListStore = NULL;
int m_iSample = 10;
sigc::connection timeoutHandlerConnection;
void on_quit_menu_item ()
{
pMainStatusBar->push ("quit requested");
if (pMainWindow)
pMainWindow->hide (); //hide() will cause main::run() to end.
else
std::cout << "ehm... no valid pointer to main-window" << std::endl;
}
void on_info_menu_item ()
{
pMainStatusBar->push ("info requested");
if (pAboutDialog)
pAboutDialog->show ();
else
std::cout << "ehm... no valid pointer to about-dialog" << std::endl;
}
void on_cap_style_changed ()
{
switch (pCapStyleComboBox->get_active_row_number ())
{
case CAIRO_LINE_CAP_BUTT :
m_pCairoSamples->set_cap_style (CAIRO_LINE_CAP_BUTT);
pMainStatusBar->push ("cap-style changed to CAIRO_LINE_CAP_BUTT");
break;
case CAIRO_LINE_CAP_ROUND :
m_pCairoSamples->set_cap_style (CAIRO_LINE_CAP_ROUND);
pMainStatusBar->push ("cap-style changed to CAIRO_LINE_CAP_ROUND");
break;
case CAIRO_LINE_CAP_SQUARE :
m_pCairoSamples->set_cap_style (CAIRO_LINE_CAP_SQUARE);
pMainStatusBar->push ("cap-style changed to CAIRO_LINE_CAP_SQUARE");
break;
}
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_join_style_changed ()
{
switch (pJoinStyleComboBox->get_active_row_number ())
{
case CAIRO_LINE_JOIN_MITER :
m_pCairoSamples->set_join_style (CAIRO_LINE_JOIN_MITER);
pMainStatusBar->push ("join-style changed to CAIRO_LINE_JOIN_MITER");
break;
case CAIRO_LINE_JOIN_ROUND :
m_pCairoSamples->set_join_style (CAIRO_LINE_JOIN_ROUND);
pMainStatusBar->push ("join-style changed to CAIRO_LINE_JOIN_ROUND");
break;
case CAIRO_LINE_JOIN_BEVEL :
m_pCairoSamples->set_join_style (CAIRO_LINE_JOIN_BEVEL);
pMainStatusBar->push ("join-style changed to CAIRO_LINE_JOIN_BEVEL");
break;
}
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_dash_style_changed ()
{
switch (pDashStyleComboBox->get_active_row_number ())
{
case CairoSamples::DashOff :
m_pCairoSamples->set_dash_style (CairoSamples::DashOff);
pMainStatusBar->push ("dash-style changed to DashOff");
break;
case CairoSamples::Dotted :
m_pCairoSamples->set_dash_style (CairoSamples::Dotted);
pMainStatusBar->push ("dash-style changed to Dotted");
break;
case CairoSamples::Dashed :
m_pCairoSamples->set_dash_style (CairoSamples::Dashed);
pMainStatusBar->push ("dash-style changed to Dashed");
break;
case CairoSamples::DashDotDash :
m_pCairoSamples->set_dash_style (CairoSamples::DashDotDash);
pMainStatusBar->push ("dash-style changed to DashDotDash");
break;
case CairoSamples::DashedFunky :
m_pCairoSamples->set_dash_style (CairoSamples::DashedFunky);
pMainStatusBar->push ("dash-style changed to DashedFunky");
break;
}
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_operator_changed ()
{
switch (pOperatorComboBox->get_active_row_number ())
{
case CAIRO_OPERATOR_CLEAR :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_CLEAR);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_CLEAR");
break;
case CAIRO_OPERATOR_SOURCE :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_SOURCE);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_SOURCE");
break;
case CAIRO_OPERATOR_OVER :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_OVER);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_OVER");
break;
case CAIRO_OPERATOR_IN :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_IN);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_IN");
break;
case CAIRO_OPERATOR_OUT :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_OUT);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_OUT");
break;
case CAIRO_OPERATOR_ATOP :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_ATOP);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_ATOP");
break;
case CAIRO_OPERATOR_DEST :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_DEST);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_DEST");
break;
case CAIRO_OPERATOR_DEST_OVER :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_DEST_OVER);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_DEST_OVER");
break;
case CAIRO_OPERATOR_DEST_IN :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_DEST_IN);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_DEST_IN");
break;
case CAIRO_OPERATOR_DEST_OUT :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_DEST_OUT);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_DEST_OUT");
break;
case CAIRO_OPERATOR_DEST_ATOP :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_DEST_ATOP);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_DEST_ATOP");
break;
case CAIRO_OPERATOR_XOR :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_XOR);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_XOR");
break;
case CAIRO_OPERATOR_ADD :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_ADD);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_ADD");
break;
case CAIRO_OPERATOR_SATURATE :
m_pCairoSamples->set_operator (CAIRO_OPERATOR_SATURATE);
pMainStatusBar->push ("operator changed to CAIRO_OPERATOR_SATURATE");
break;
}
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_extend_mode_changed ()
{
switch (pExtendModeComboBox->get_active_row_number ())
{
case CAIRO_EXTEND_NONE :
m_pCairoSamples->set_extend_mode (CAIRO_EXTEND_NONE);
pMainStatusBar->push ("extend-mode changed to CAIRO_EXTEND_NONE");
break;
case CAIRO_EXTEND_REPEAT :
m_pCairoSamples->set_extend_mode (CAIRO_EXTEND_REPEAT);
pMainStatusBar->push ("extend-mode changed to CAIRO_EXTEND_REPEAT");
break;
case CAIRO_EXTEND_REFLECT :
m_pCairoSamples->set_extend_mode (CAIRO_EXTEND_REFLECT);
pMainStatusBar->push ("extend-mode changed to CAIRO_EXTEND_REFLECT");
break;
}
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_filter_mode_changed ()
{
switch (pFilterModeComboBox->get_active_row_number ())
{
case CAIRO_FILTER_FAST :
m_pCairoSamples->set_filter_mode (CAIRO_FILTER_FAST);
pMainStatusBar->push ("filter-mode changed to CAIRO_FILTER_FAST");
break;
case CAIRO_FILTER_GOOD :
m_pCairoSamples->set_filter_mode (CAIRO_FILTER_GOOD);
pMainStatusBar->push ("filter-mode changed to CAIRO_FILTER_GOOD");
break;
case CAIRO_FILTER_BEST :
m_pCairoSamples->set_filter_mode (CAIRO_FILTER_BEST);
pMainStatusBar->push ("filter-mode changed to CAIRO_FILTER_BEST");
break;
case CAIRO_FILTER_NEAREST :
m_pCairoSamples->set_filter_mode (CAIRO_FILTER_NEAREST);
pMainStatusBar->push ("filter-mode changed to CAIRO_FILTER_NEAREST");
break;
case CAIRO_FILTER_BILINEAR :
m_pCairoSamples->set_filter_mode (CAIRO_FILTER_BILINEAR);
pMainStatusBar->push ("filter-mode changed to CAIRO_FILTER_BILINEAR");
break;
case CAIRO_FILTER_GAUSSIAN :
m_pCairoSamples->set_filter_mode (CAIRO_FILTER_GAUSSIAN);
pMainStatusBar->push ("filter-mode changed to CAIRO_FILTER_GAUSSIAN");
break;
}
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_line_width_changed ()
{
m_pCairoSamples->set_line_width ((double) pLineWidthHScale->get_value ());
std::stringstream message;
message << "line-width changed to " << pLineWidthHScale->get_value ();
pMainStatusBar->push (message.str ());
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_bg_color_set ()
{
m_pCairoSamples->set_bg_color (pBGColorColorButton->get_color ());
std::stringstream message;
message << "background-color changed to "
<< pBGColorColorButton->get_color().get_red_p ()
<< "/"
<< pBGColorColorButton->get_color().get_green_p ()
<< "/"
<< pBGColorColorButton->get_color().get_blue_p ();
pMainStatusBar->push (message.str ());
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
bool on_timeout ()
{
m_pCairoSamples->do_animation_step ();
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
return true;
}
void on_animate_toggled ()
{
if (pAnimateToggleButton->get_active ())
{
timeoutHandlerConnection = Glib::signal_timeout().connect (sigc::ptr_fun(&on_timeout), 100);
m_bAnimate = true;
pMainStatusBar->push ("animation is turned on");
}
else
{
timeoutHandlerConnection.disconnect ();
m_bAnimate = false;
pMainStatusBar->push ("animation is turned off");
}
}
void on_sample_activated (const Gtk::TreeModel::Path& path, Gtk::TreeViewColumn* column)
{
// this feels awkward/wrong, isn't there another way to get the
// integer-values form a Gtk::TreeModel::Path ?
std::stringstream str2int;
str2int << path.to_string ();
str2int >> m_iSample;
std::stringstream message;
message << "rendering sample \""
<< m_pCairoSamples->get_sample_name ((CairoSamples::Sample) m_iSample)
<< "\"";
pMainStatusBar->push (message.str ());
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
bool on_expose_event (GdkEventExpose* pEvent)
{
m_pCairoContext = gdk_cairo_create (pMainDrawingArea->get_window()->gobj ());
if (m_pCairoContext)
{
m_pCairoSamples->set_context (m_pCairoContext);
m_pCairoSamples->normalize_canvas ((double) pMainDrawingArea->get_allocation().get_width (),
(double) pMainDrawingArea->get_allocation().get_height ());
m_pCairoSamples->do_sample ((CairoSamples::Sample) m_iSample);
cairo_destroy (m_pCairoContext);
}
return true;
}
// this doesn't catch every slant- and weight-attribute-names there are, but it
// covers most of the usual "Regular", "Bold", "Italic", "Oblique" bits... this
// is only a testbed after all and no full-blown application that needs to be
// bullet-proof... aside from that, I'm always happy to receive patches :)
void on_font_set ()
{
std::string strFontName = pFontFontButton->get_font_name ();
std::string strToken;
std::string::size_type start;
std::string::size_type length;
std::stringstream message;
message << "font changed to "
<< strFontName;
pMainStatusBar->push (message.str ());
// set default slant and weight
m_pCairoSamples->set_font_slant (CAIRO_FONT_SLANT_NORMAL);
m_pCairoSamples->set_font_weight (CAIRO_FONT_WEIGHT_NORMAL);
// just find one occurance of "Regular" and eat it
strToken = "Regular";
start = strFontName.find (strToken);
length = strToken.length ();
if (start != std::string::npos)
strFontName.erase (start, length);
// find one occurance of "Roman" and eat it
// *sigh* this bites with "Times New Roman"
strToken = "Roman";
start = strFontName.find (strToken);
length = strToken.length ();
if (start != std::string::npos)
strFontName.erase (start, length);
// find one occurance of "Bold"
strToken = "Bold";
start = strFontName.find (strToken);
length = strToken.length ();
if (start != std::string::npos)
{
m_pCairoSamples->set_font_weight (CAIRO_FONT_WEIGHT_BOLD);
strFontName.erase (start, length);
}
// find one occurance of "Italic"
strToken = "Italic";
start = strFontName.find (strToken);
length = strToken.length ();
if (start != std::string::npos)
{
m_pCairoSamples->set_font_slant (CAIRO_FONT_SLANT_ITALIC);
strFontName.erase (start, length);
}
// find one occurance of "Oblique"
strToken = "Oblique";
start = strFontName.find (strToken);
length = strToken.length ();
if (start != std::string::npos)
{
m_pCairoSamples->set_font_slant (CAIRO_FONT_SLANT_OBLIQUE);
strFontName.erase (start, length);
}
// just find and cut one occurance of "semicondensed"
strToken = "semicondensed";
start = strFontName.find (strToken);
length = strToken.length ();
if (start != std::string::npos)
strFontName.erase (start, length);
// get font-size
start = strFontName.find_last_of (" ");
std::stringstream str2int;
str2int << strFontName.substr (start);
str2int >> m_iFontSize;
m_pCairoSamples->set_font_size (m_iFontSize * 0.01f);
// cut size from remaining string
start = strFontName.find_last_of (" ");
if (start != std::string::npos)
strFontName.erase (start);
// cut trailing spaces from remaining string
start = strFontName.find_last_of (" ");
if (start != std::string::npos)
strFontName.erase (start);
// cut trailing comma from remaining string
start = strFontName.find_last_of (",");
if (start != std::string::npos)
strFontName.erase (start);
// finally the remaining string only contains the font-family name
m_pCairoSamples->set_font_family (strFontName);
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_text_entry_activated ()
{
std::stringstream message;
message << "some text changed to "
<< "\""
<< pTextEntry->get_text ()
<< "\"";
pMainStatusBar->push (message.str ());
m_pCairoSamples->set_some_text ((std::string) pTextEntry->get_text ());
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_image_selection_changed ()
{
std::stringstream message;
message << "PNG-file changed to "
<< "\""
<< pImageFileFileChooserButton->get_filename ()
<< "\"";
pMainStatusBar->push (message.str ());
m_pCairoSamples->set_image_file_name ((std::string) pImageFileFileChooserButton->get_filename ());
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
void on_svg_selection_changed ()
{
std::stringstream message;
message << "SVG-file changed to "
<< "\""
<< pSvgFileFileChooserButton->get_filename ()
<< "\"";
pMainStatusBar->push (message.str ());
m_pCairoSamples->set_svg_file_name ((std::string) pSvgFileFileChooserButton->get_filename ());
// force a redraw of the cairo-context
pMainDrawingArea->queue_draw ();
}
int main (int argc, char** argv)
{
Gtk::Main app (argc, argv);
Glib::RefPtr<Gnome::Glade::Xml> refXml;
try
{
refXml = Gnome::Glade::Xml::create("cairo-in-motion.glade");
}
catch (const Gnome::Glade::XmlError& exception)
{
std::cerr << exception.what () << std::endl;
return 1;
}
refXml->get_widget ("mainWindow", pMainWindow);
refXml->get_widget ("aboutDialog", pAboutDialog);
if (pMainWindow)
{
Gtk::ImageMenuItem* pQuitMenuItem = NULL;
Gtk::MenuItem* pInfoMenuItem = NULL;
refXml->get_widget ("quitMenuItem", pQuitMenuItem);
refXml->get_widget ("infoMenuItem", pInfoMenuItem);
refXml->get_widget ("mainStatusBar", pMainStatusBar);
if (pQuitMenuItem)
pQuitMenuItem->signal_activate().connect (sigc::ptr_fun (on_quit_menu_item));
if (pInfoMenuItem)
pInfoMenuItem->signal_activate().connect (sigc::ptr_fun (on_info_menu_item));
if (pMainStatusBar)
pMainStatusBar->push ("program started");
pMainWindow->set_icon_from_file ("cairo-in-motion.png");
pAboutDialog->set_icon_from_file ("cairo-in-motion.png");
refXml->get_widget ("capStyleComboBox", pCapStyleComboBox);
refXml->get_widget ("joinStyleComboBox", pJoinStyleComboBox);
refXml->get_widget ("dashStyleComboBox", pDashStyleComboBox);
refXml->get_widget ("operatorComboBox", pOperatorComboBox);
refXml->get_widget ("extendModeComboBox", pExtendModeComboBox);
refXml->get_widget ("filterModeComboBox", pFilterModeComboBox);
if (pCapStyleComboBox)
{
pCapStyleComboBox->set_active ((int) m_capStyle);
pCapStyleComboBox->signal_changed().connect (sigc::ptr_fun (on_cap_style_changed));
}
if (pJoinStyleComboBox)
{
pJoinStyleComboBox->set_active ((int) m_joinStyle);
pJoinStyleComboBox->signal_changed().connect (sigc::ptr_fun (on_join_style_changed));
}
if (pDashStyleComboBox)
{
pDashStyleComboBox->set_active ((int) m_dashStyle);
pDashStyleComboBox->signal_changed().connect (sigc::ptr_fun (on_dash_style_changed));
}
if (pOperatorComboBox)
{
pOperatorComboBox->set_active ((int) m_operator);
pOperatorComboBox->signal_changed().connect (sigc::ptr_fun (on_operator_changed));
}
if (pExtendModeComboBox)
{
pExtendModeComboBox->set_active ((int) m_extendMode);
pExtendModeComboBox->signal_changed().connect (sigc::ptr_fun (on_extend_mode_changed));
}
if (pFilterModeComboBox)
{
pFilterModeComboBox->set_active ((int) m_filterMode);
pFilterModeComboBox->signal_changed().connect (sigc::ptr_fun (on_filter_mode_changed));
}
refXml->get_widget ("lineWidthHScale", pLineWidthHScale);
if (pLineWidthHScale)
{
pLineWidthHScale->set_value (m_fLineWidth);
pLineWidthHScale->signal_value_changed().connect (sigc::ptr_fun (on_line_width_changed));
}
refXml->get_widget ("bgColorColorButton", pBGColorColorButton);
if (pBGColorColorButton)
{
pBGColorColorButton->set_color (m_bgColor);
pBGColorColorButton->signal_color_set().connect (sigc::ptr_fun (on_bg_color_set));
}
refXml->get_widget ("animateToggleButton", pAnimateToggleButton);
if (pAnimateToggleButton)
{
timeoutHandlerConnection = Glib::signal_timeout().connect(sigc::ptr_fun (&on_timeout), 100);
if (!m_bAnimate)
timeoutHandlerConnection.disconnect ();
pAnimateToggleButton->set_active (m_bAnimate);
pAnimateToggleButton->signal_toggled().connect (sigc::ptr_fun (on_animate_toggled));
}
refXml->get_widget ("samplesTreeView", pSamplesTreeView);
if (pSamplesTreeView)
{
m_pSampleListStore = new SampleListStore (pSamplesTreeView);
// I was hoping to figure out how to set/highlight the first
// row of the treeview... but even with asking on #gtk at
// irc.gimp.org I'm not able to get this very simple thing done
pSamplesTreeView->get_selection()->select (Gtk::TreePath ("0"));
pSamplesTreeView->signal_row_activated().connect (sigc::ptr_fun (on_sample_activated));
}
refXml->get_widget ("mainDrawingArea", pMainDrawingArea);
if (pMainDrawingArea)
{
m_pCairoSamples = new CairoSamples ();
if (m_pCairoSamples)
{
m_pCairoSamples->set_cap_style (m_capStyle);
m_pCairoSamples->set_join_style (m_joinStyle);
m_pCairoSamples->set_operator (m_operator);
m_pCairoSamples->set_extend_mode (m_extendMode);
m_pCairoSamples->set_filter_mode (m_filterMode);
m_pCairoSamples->set_line_width (m_fLineWidth);
m_pCairoSamples->set_bg_color (m_bgColor);
m_pCairoSamples->set_font_family (m_strFontFamily);
m_pCairoSamples->set_font_size ((double) m_iFontSize * 0.01f);
m_pCairoSamples->set_font_weight (m_fontWeight);
m_pCairoSamples->set_font_slant (m_fontSlant);
m_pCairoSamples->set_some_text (m_strSomeText);
m_pCairoSamples->set_image_file_name (m_strImageFileName);
m_pCairoSamples->set_svg_file_name (m_strSvgFileName);
m_pCairoSamples->add_samples_to_list_store (m_pSampleListStore);
}
pMainDrawingArea->signal_expose_event().connect (sigc::ptr_fun (on_expose_event));
}
refXml->get_widget ("fontFontButton", pFontFontButton);
if (pFontFontButton)
{
// assemble string describing the initial font
std::string strFontName;
strFontName = m_strFontFamily;
switch (m_fontWeight)
{
case CAIRO_FONT_WEIGHT_NORMAL :
strFontName.append (" Regular");
break;
case CAIRO_FONT_WEIGHT_BOLD :
strFontName.append (" Bold");
break;
}
switch (m_fontSlant)
{
case CAIRO_FONT_SLANT_ITALIC :
strFontName.append (" Italic");
break;
case CAIRO_FONT_SLANT_OBLIQUE :
strFontName.append (" Oblique");
break;
default :
break;
}
std::stringstream int2str;
int2str << m_iFontSize;
strFontName.append (" ");
strFontName.append (int2str.str ());
pFontFontButton->set_font_name (strFontName);
pFontFontButton->set_show_size (true);
pFontFontButton->set_use_font (false);
pFontFontButton->set_use_size (false);
pFontFontButton->set_show_style (false);
pFontFontButton->signal_font_set().connect (sigc::ptr_fun (on_font_set));
}
refXml->get_widget ("imageFileFileChooserButton", pImageFileFileChooserButton);
if (pImageFileFileChooserButton)
{
pImageFileFileChooserButton->set_filename (m_strImageFileName.c_str ());
Gtk::FileFilter pngFilter;
pngFilter.set_name ("PNG Images");
pngFilter.add_pattern ("*.png");
pngFilter.add_pattern ("*.PNG");
pImageFileFileChooserButton->add_filter (pngFilter);
pImageFileFileChooserButton->set_filter (pngFilter);
pImageFileFileChooserButton->signal_selection_changed ().connect (sigc::ptr_fun (on_image_selection_changed));
}
refXml->get_widget ("svgFileFileChooserButton", pSvgFileFileChooserButton);
if (pSvgFileFileChooserButton)
{
pSvgFileFileChooserButton->set_filename (m_strSvgFileName.c_str ());
Gtk::FileFilter svgFilter;
svgFilter.set_name ("SVG Drawings");
svgFilter.add_pattern ("*.svg");
svgFilter.add_pattern ("*.SVG");
pSvgFileFileChooserButton->add_filter (svgFilter);
pSvgFileFileChooserButton->set_filter (svgFilter);
pSvgFileFileChooserButton->signal_selection_changed ().connect (sigc::ptr_fun (on_svg_selection_changed));
}
refXml->get_widget ("textEntry", pTextEntry);
if (pTextEntry)
{
pTextEntry->set_text (m_strSomeText);
pTextEntry->signal_activate().connect (sigc::ptr_fun (on_text_entry_activated));
}
app.run (*pMainWindow);
}
return 0;
}
--- NEW FILE: sample-list-store.cpp ---
// "cairo in motion" is a testbed for animated vector-drawing
// using cairo within a gtk+-environment
//
// Copyright (C) 2005 Mirco Mueller <macslow at bangang.de>
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#include "sample-list-store.h"
SampleListStore::SampleListStore (Gtk::TreeView* pTreeView)
{
m_pTreeView = pTreeView;
m_refListStore = Gtk::ListStore::create (m_columns);
m_pTreeView->set_model (m_refListStore);
add_columns ();
}
SampleListStore::~SampleListStore ()
{
}
void SampleListStore::add_item (std::string strName)
{
Gtk::TreeRow entry = *(m_refListStore->append ());
entry[m_columns.name] = strName;
}
void SampleListStore::add_columns ()
{
Gtk::CellRendererText* pRenderer = Gtk::manage (new Gtk::CellRendererText ());
int cols_count = m_pTreeView->append_column ("Sample Name", *pRenderer);
Gtk::TreeViewColumn* pColumn = m_pTreeView->get_column (cols_count - 1);
pColumn->add_attribute (pRenderer->property_text (), m_columns.name);
}
--- NEW FILE: sample-list-store.h ---
// "cairo in motion" is a testbed for animated vector-drawing
// using cairo within a gtk+-environment
//
// Copyright (C) 2005 Mirco Mueller <macslow at bangang.de>
//
// 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 2 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, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#ifndef _SAMPLELISTSTORE_H_
#define _SAMPLELISTSTORE_H_
#include <string>
#include <vector>
#include <gtkmm.h>
class SampleListStore
{
public:
SampleListStore (Gtk::TreeView* pTreeView);
~SampleListStore ();
void add_item (std::string strName);
private:
void add_columns ();
struct ModelColumns : public Gtk::TreeModelColumnRecord
{
Gtk::TreeModelColumn<std::string> name;
ModelColumns ()
{
add (name);
}
};
Gtk::TreeView* m_pTreeView;
const ModelColumns m_columns;
Glib::RefPtr<Gtk::ListStore> m_refListStore;
};
#endif /*_SAMPLELISTSTORE_H_*/
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