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#ifndef __DW_FLTKVIEWBASE_HH__
#define __DW_FLTKVIEWBASE_HH__
#include <time.h> // for time_t
#include <sys/time.h> // for time_t in FreeBSD
#include <FL/Fl_Group.H>
#include <FL/x.H>
#include "fltkcore.hh"
namespace dw {
namespace fltk {
class FltkViewBase: public FltkView, public Fl_Group
{
private:
class BackBuffer {
private:
int w;
int h;
bool created;
public:
Fl_Offscreen offscreen;
BackBuffer ();
~BackBuffer ();
void setSize(int w, int h);
};
typedef enum { DRAW_PLAIN, DRAW_CLIPPED, DRAW_BUFFERED } DrawType;
int bgColor;
core::Region drawRegion;
core::Rectangle *exposeArea;
static BackBuffer *backBuffer;
static bool backBufferInUse;
void draw (const core::Rectangle *rect, DrawType type);
void drawChildWidgets ();
int manageTabToFocus();
inline void clipPoint (int *x, int *y, int border) {
if (exposeArea) {
if (*x < exposeArea->x - border)
*x = exposeArea->x - border;
if (*x > exposeArea->x + exposeArea->width + border)
*x = exposeArea->x + exposeArea->width + border;
if (*y < exposeArea->y - border)
*y = exposeArea->y - border;
if (*y > exposeArea->y + exposeArea->height + border)
*y = exposeArea->y + exposeArea->height + border;
}
}
protected:
core::Layout *theLayout;
int canvasWidth, canvasHeight;
int mouse_x, mouse_y;
Fl_Widget *focused_child;
virtual int translateViewXToCanvasX (int x) = 0;
virtual int translateViewYToCanvasY (int y) = 0;
virtual int translateCanvasXToViewX (int x) = 0;
virtual int translateCanvasYToViewY (int y) = 0;
public:
FltkViewBase (int x, int y, int w, int h, const char *label = 0);
~FltkViewBase ();
void draw();
int handle (int event);
void setLayout (core::Layout *layout);
void setCanvasSize (int width, int ascent, int descent);
void setCursor (core::style::Cursor cursor);
void setBgColor (core::style::Color *color);
void startDrawing (core::Rectangle *area);
void finishDrawing (core::Rectangle *area);
void queueDraw (core::Rectangle *area);
void queueDrawTotal ();
void cancelQueueDraw ();
void drawPoint (core::style::Color *color,
core::style::Color::Shading shading,
int x, int y);
void drawLine (core::style::Color *color,
core::style::Color::Shading shading,
int x1, int y1, int x2, int y2);
void drawTypedLine (core::style::Color *color,
core::style::Color::Shading shading,
core::style::LineType type, int width,
int x1, int y1, int x2, int y2);
void drawRectangle (core::style::Color *color,
core::style::Color::Shading shading, bool filled,
int x, int y, int width, int height);
void drawArc (core::style::Color *color,
core::style::Color::Shading shading, bool filled,
int centerX, int centerY, int width, int height,
int angle1, int angle2);
void drawPolygon (core::style::Color *color,
core::style::Color::Shading shading,
bool filled, bool convex,
core::Point *points, int npoints);
core::View *getClippingView (int x, int y, int width, int height);
void mergeClippingView (core::View *clippingView);
void setBufferedDrawing (bool b);
};
class FltkWidgetView: public FltkViewBase
{
public:
FltkWidgetView (int x, int y, int w, int h, const char *label = 0);
~FltkWidgetView ();
void drawText (core::style::Font *font,
core::style::Color *color,
core::style::Color::Shading shading,
int x, int y, const char *text, int len);
void drawSimpleWrappedText (core::style::Font *font,
core::style::Color *color,
core::style::Color::Shading shading,
int x, int y, int w, int h,
const char *text);
void drawImage (core::Imgbuf *imgbuf, int xRoot, int yRoot,
int x, int y, int width, int height);
bool usesFltkWidgets ();
void addFltkWidget (Fl_Widget *widget, core::Allocation *allocation);
void removeFltkWidget (Fl_Widget *widget);
void allocateFltkWidget (Fl_Widget *widget,
core::Allocation *allocation);
void drawFltkWidget (Fl_Widget *widget, core::Rectangle *area);
};
} // namespace fltk
} // namespace dw
#endif // __DW_FLTKVIEWBASE_HH__
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