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Added Graphics::DrawText which can draw text on to an image with alignment. No multi-line support yet.

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This commit is contained in:
Fatbag 2012-04-09 23:58:16 -05:00
parent 7d9259b63d
commit 7a5124a687
8 changed files with 145 additions and 35 deletions
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114
Client/Scene/Scene.hpp
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@ -15,6 +15,8 @@
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <GL/gl.h>
#define EXIT_SCENE() do { System::SceneFailed = true; delete this; return; } while(0)
#define SCENE_EXIT 0
#define SCENE_NEED_REDRAW 1
@ -22,11 +24,12 @@
class Scene {
const float TickPeriod;
float TimeDelta;
float RealTimeDelta;
virtual int Run(float TimeDelta) = 0;
protected:
Scene(float c) : TickPeriod(c), TimeDelta(0) {}
float TimeDelta;
Scene(float c) : TickPeriod(c), RealTimeDelta(0) {}
public:
int RunFor(float TimeDelta) {
@ -35,54 +38,95 @@ class Scene {
}
bool Redraw = false;
this->TimeDelta += TimeDelta;
while(this->TimeDelta >= 0){
RealTimeDelta += TimeDelta;
while(RealTimeDelta >= 0){
int result = Run(TickPeriod);
if(result == System::SHUTDOWN)
return System::SHUTDOWN;
if(result > 0) Redraw = true;
this->TimeDelta -= TickPeriod;
RealTimeDelta -= TickPeriod;
}
return (Redraw) ? 1 : -1;
}
virtual void Render() = 0;
virtual ~Scene() {};
};
enum {
TEX_EAGAMES,
TEX_MAXIS,
TEX_SETUP,
TEX_COUNT
};
static const char * const images[] = {"eagames.bmp", "maxis.png", "setup.bmp"};
class LoginScreen : public Scene {
float Time;
GLuint texture[TEX_COUNT];
public:
LoginScreen() : Scene(1.0f/15){
Image_t * Image = File::ReadImageFile("eagames.bmp");
if(!Image){
const char * Message;
switch(File::Error){
case FERR_NOT_FOUND:
Message = "%s does not exist.";
break;
case FERR_OPEN:
Message = "%s could not be opened for reading.";
break;
case FERR_BLANK:
case FERR_UNRECOGNIZED:
case FERR_INVALIDDATA:
Message = "%s is corrupt or invalid.";
break;
case FERR_MEMORY:
Message = "Memory for %s could not be allocated.";
break;
default:
Message = "%s could not be read.";
}
Time = 0;
char Buffer[1024];
sprintf(Buffer, Message, "eagames.bmp");
MessageBox(Window::hWnd, Buffer, NULL, MB_OK | MB_ICONERROR);
EXIT_SCENE();
glMatrixMode(GL_TEXTURE);
glGenTextures(TEX_COUNT, texture);
for(int i=0; i<TEX_COUNT; i++){
Image_t * Image = File::ReadImageFile(images[i]);
if(!Image){
const char * Message;
switch(File::Error){
case FERR_NOT_FOUND:
Message = "%s does not exist.";
break;
case FERR_OPEN:
Message = "%s could not be opened for reading.";
break;
case FERR_BLANK:
case FERR_UNRECOGNIZED:
case FERR_INVALIDDATA:
Message = "%s is corrupt or invalid.";
break;
case FERR_MEMORY:
Message = "Memory for %s could not be allocated.";
break;
default:
Message = "%s could not be read.";
}
char Buffer[1024];
sprintf(Buffer, Message, images[i]);
MessageBox(Window::hWnd, Buffer, NULL, MB_OK | MB_ICONERROR);
EXIT_SCENE();
}
if(i == TEX_MAXIS){
FT_Set_Char_Size(Graphics::FontFace, 0, 22*64, 0, 0);
Graphics::DrawText(Image, L"Maxis\x2122 is an Electronic Arts\x2122 brand.", 0, 600-146, 800, 146,
Graphics::ALIGN_CENTER_CENTER, 0, RGB(0xef, 0xe3, 0x8c));
}
glBindTexture(GL_TEXTURE_2D, texture[i]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB8, Image->Width, Image->Height, 0, GL_BGR, GL_UNSIGNED_BYTE, Image->Data);
free(Image->Data);
free(Image);
}
}
~LoginScreen(){
glDeleteTextures(TEX_COUNT, texture);
}
private:
int Run(float){
int Run(float TimeDelta){
Time += TimeDelta;
if(System::UserInput.CloseWindow){
return SCENE_EXIT;
}
@ -91,5 +135,13 @@ class LoginScreen : public Scene {
public:
void Render(){
glMatrixMode(GL_TEXTURE);
glBindTexture(GL_TEXTURE_2D, texture[(Time>=4) + (Time>=8)]);
glBegin(GL_QUADS);
glTexCoord2i(0,0); glVertex2i(0,0);
glTexCoord2i(1,0); glVertex2i(800,0);
glTexCoord2i(1,1); glVertex2i(800,600);
glTexCoord2i(0,1); glVertex2i(0,600);
glEnd();
}
};